99-13250. Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for the Plant Eriogonum apricum (inclusive of vars. apricum and prostratum) (Ione Buckwheat) and Threatened Status for the Plant Arctostaphylos myrtifolia (...  

  • [Federal Register Volume 64, Number 101 (Wednesday, May 26, 1999)]
    [Rules and Regulations]
    [Pages 28403-28413]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 99-13250]
    
    
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    DEPARTMENT OF THE INTERIOR
    
    Fish and Wildlife Service
    
    50 CFR Part 17
    
    RIN 1018-AE25
    
    
    Endangered and Threatened Wildlife and Plants; Determination of 
    Endangered Status for the Plant Eriogonum apricum (inclusive of vars. 
    apricum and prostratum) (Ione Buckwheat) and Threatened Status for the 
    Plant Arctostaphylos myrtifolia (Ione Manzanita)
    
    AGENCY: Fish and Wildlife Service, Interior.
    
    ACTION: Final rule.
    
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    SUMMARY: We determine endangered status pursuant to the Endangered 
    Species Act of 1973, as amended (Act), for Eriogonum apricum (inclusive 
    of vars. apricum and prostratum) (Ione buckwheat). We also determine 
    threatened status for Arctostaphylos myrtifolia (Ione manzanita). These 
    two species occur primarily on soils derived from the Ione Formation in 
    Amador and/or Calaveras counties in the central Sierra Nevada foothills 
    of California and are imperiled by one or more of the following 
    factors--mining, clearing of vegetation for agriculture and fire 
    protection, disease, inadequate regulatory mechanisms, habitat 
    fragmentation, residential and commercial development, changes in fire 
    frequency, and continued erosion due to prior off-road vehicle use. 
    Existing regulatory mechanisms do not adequately protect these species. 
    Random events increase the risk to the few, small populations of E. 
    apricum. This action implements the protection of the Act for these 
    plants.
    
    EFFECTIVE DATE: June 25, 1999.
    
    ADDRESSES: The complete file for this rule is available for inspection, 
    by appointment, during normal business hours at the U.S. Fish and 
    Wildlife Service, Sacramento Field Office, 3310 El Camino Avenue, Suite 
    130, Sacramento, California 95821-6340.
    
    FOR FURTHER INFORMATION CONTACT: Kirsten Tarp (telephone 916/979-2120) 
    and/or Jason Davis (telephone 916/979-2749), staff biologists at the 
    above address (facsimile 916/979-2723).
    
    SUPPLEMENTARY INFORMATION:
    
    Background
    
        Arctostaphylos myrtifolia (Ione manzanita), Eriogonum apricum var. 
    apricum (Ione buckwheat), and Eriogonum apricum var. prostratum (Irish 
    Hill buckwheat) are found primarily in western Amador County, about 70 
    kilometers (km) (43.5 miles (mi)) southeast of Sacramento in the 
    central Sierra Nevada foothills of California. Most populations occur 
    at elevations between 90 and 280 meters (m) (295 and 918 feet (ft)). A 
    few isolated occurrences of A. myrtifolia occur in adjacent northern 
    Calaveras County.
        Both species included in this rule occur primarily on ``Ione 
    soils'' which have developed along a 40 mile stretch of the Ione 
    Formation. The Ione Formation, comprised of a unique Tertiary Oxisol, 
    consisting of fluvial (stream or river produced), estuarine, and 
    shallow marine deposits (Bureau of Land Management (BLM) 1989), was 
    developed under a subtropical or tropical climate during the Eocene 
    (35-57 million years ago). The Ione soils in the area are coarse-
    textured and exhibit soil properties typical of those produced under 
    tropical climates such as high acidity, high aluminum content, and low 
    fertility (Singer 1978). These soils and the sedimentary deposits with 
    which they are associated also contain large amounts of commercially 
    valuable minerals including quartz sands, kaolinitic (containing a 
    hydrous silicate of aluminum) clays, lignite (low-grade coal), and 
    possible gold-bearing gravels (Chapman and Bishop 1975). The nearest 
    modern-day relatives to these soils occur in Hawaii and Puerto Rico 
    (Singer 1978).
        The vegetation in the Ione area is distinctive enough to be 
    designated as ``Ione chaparral'' in a classification of plant 
    communities in California (Holland 1986). Stebbins (1993) characterized 
    the Ione chaparral as an ecological island, which he defined as a 
    relatively small area with particular climatic and ecological features 
    that differ significantly from surrounding areas. This plant community 
    occurs only on very acidic, nutrient-poor, coarse soils, and is 
    comprised of low-growing, heath-like shrubs and scattered herbs 
    (Holland 1986). The dominant shrub is Arctostaphylos myrtifolia, which 
    is narrowly endemic to the area. Ione chaparral is restricted in 
    distribution to the vicinity of Ione in Amador County, and a few local 
    areas of adjacent northern Calaveras County where the community is 
    estimated to cover 2,430 hectares (ha) (6,002 acres (ac)) (California 
    Natural Diversity Database (CNDDB) 1997). The endemic plants that grow 
    here are thought to do so because they can tolerate the acidic, 
    nutrient-poor conditions of the soil which exclude other plant species. 
    The climate of the area may be moderated by its location due east of 
    the Golden Gate (Gankin and Major 1964, Roof 1982).
    
    Discussion of the Two Species
    
        Charles Parry (1887) described Arctostaphylos myrtifolia based upon
    
    [[Page 28404]]
    
    material collected near Ione, California. Subsequent authors variously 
    treated this taxon as Uva-ursi myrtifolia (Abrams 1914), A. nummularia 
    var. myrtifolia (Jepson 1922), Schizococcus myrtifolius (Eastwood 1937, 
    cited in Gankin and Major 1964), and Arctostaphylos uva-ursi ssp. 
    myrtifolia (Roof 1982). Philip Wells (1993), in his treatment of 
    California Arctostaphylos, maintained the species as A. myrtifolia.
        Arctostaphylos myrtifolia is an evergreen shrub of the heath family 
    (Ericaceae) that lacks a basal burl. Attaining a height of generally 
    less than 1.2 m (3.9 ft), plants appear low and spreading. The bark is 
    red, smooth, and waxy. Olive green, narrowly elliptic leaves are 6 to 
    15 millimeters (mm) (0.2 to 0.6 inches (in.)) long. Red scale-like 
    inflorescence (flower cluster) bracts are 1 to 2 mm (0.04 to 0.08 in.) 
    long. White or pinkish urn-shaped flowers appear from January to 
    February. The fruit is cylindric. The species depends almost entirely 
    on periodic fire events to promote seed germination (Wood and Parker 
    1988). Arctostaphylos myrtifolia can be distinguished from other 
    species in the same genus by its smaller stature and the color of its 
    leaves.
        Arctostaphylos myrtifolia is reported from 17 occurrences (CNDDB 
    1997). Because most of these occurrences are based on the collection 
    localities of individual specimens, it is uncertain how many stands 
    these 17 occurrences represent. Arctostaphylos myrtifolia may occur in 
    about 100 individual stands which cover a total of about 404.7 ha 
    (1,000 ac) (Roy Woodward, Bechtel, in litt. 1994). It occurs primarily 
    on outcrops of the Ione Formation within an area of about 91 square 
    (sq.) km (35 sq. mi) in Amador County. In addition, a few disjunct 
    populations occur in Calaveras County. The populations range in 
    elevation from 60 to 580 m (190 to 1900 ft), with the largest 
    populations occurring at elevations between 90 and 280 m (280 and 900 
    ft) (Wood and Parker 1988). Arctostaphylos myrtifolia is the dominant 
    and characteristic species of Ione chaparral, where it occurs in pure 
    stands. It also occurs in an ecotone (transition area between two 
    adjacent ecological communities) with surrounding taller chaparral 
    types, but it does not persist if it is shaded (R. Woodward, in litt. 
    1994). Mining, disease, clearing of vegetation for agriculture and fire 
    protection, habitat fragmentation, residential and commercial 
    development, changes in fire frequency, and ongoing erosion threaten 
    various populations of this plant (CNDDB 1997; Ed Bollinger, Acting 
    Area Manager, BLM, Folsom Resource Area, in litt. 1994; M. Wood, in 
    litt. 1994) and existing regulatory mechanisms do not adequately 
    protect the species. The amount of A. myrtifolia habitat already lost 
    to mining cannot be quantified because information regarding the total 
    mineral production as well as the total acreage of land newly disturbed 
    by a mining operation is proprietary (Maryann Showers, California 
    Department of Mining and Geology, pers. comm. 1994). Although the exact 
    area of habitat lost is unknown, a significant loss of habitat has 
    occurred (Roof 1982; Stebbins 1993; Michael K. Wood, Botanical 
    Consultant, in litt. 1994). Arctostaphylos myrtifolia occurs primarily 
    on private or non-Federal lands. One occurrence on BLM land is within 
    the Ione Manzanita Area of Critical Environmental Concern (ACEC). Two 
    additional occurrences are partially on BLM lands. Four small, pure 
    populations and several smaller, mixed populations also occur on the 
    State-owned Apricum Hill Ecological Reserve managed by the California 
    Department of Fish and Game (CDFG) (Wood and Parker 1988).
        Eriogonum apricum comprises two varieties--Eriogonum apricum var. 
    apricum and E. apricum var. prostratum. Descriptions are provided below 
    for each of the varieties.
        Howell (1955) described the species Eriogonum apricum (Ione 
    buckwheat) in 1955 based on a specimen collected in the foothills of 
    the Sierra Nevada near Ione, Amador County, California. Myatt (1970) 
    described a variety of the Ione buckwheat, E. apricum var. prostratum 
    (Irish Hill buckwheat) in 1970. According to the rules for botanical 
    nomenclature, when a new variety is described in a species not 
    previously divided into infraspecific taxa, an autonym (an 
    automatically generated name) is created. In this case, the autonym is 
    Eriogonum apricum var. apricum.
        Both varieties, Eriogonum apricum vars. apricum and prostratum, are 
    perennial herbs in the buckwheat family (Polygonaceae). Eriogonum 
    apricum var. apricum is glabrous (smooth, without hairs or glands) and 
    grows upright to 8 to 20 centimeters (cm) (3 to 8 in.) in height. Its 
    leaves are basal, round to oval, and 3 to 5 mm (0.1 to 0.2 in.) wide. 
    The calyx (outer whorl of flower parts) is white with reddish midribs. 
    Eriogonum apricum var. apricum flowers from July to October, and is 
    restricted to nine occurrences occupying a total of approximately 4 ha 
    (10 ac) (The Nature Conservancy (TNC) 1984) on otherwise barren 
    outcrops within the Ione chaparral. Of the nine known occurrences of E. 
    apricum var. apricum, one is partially protected by CDFG (CNDDB 1997). 
    Eriogonum apricum var. apricum occurs primarily on private or non-
    Federal land; BLM manages one occurrence. Mining, clearing of 
    vegetation for agriculture and for fire protection, habitat 
    fragmentation, increased residential development, and erosion variously 
    threaten the occurrences of this plant. Existing regulatory mechanisms 
    do not adequately protect this species.
        Eriogonum apricum var. prostratum has smaller leaves, a prostrate 
    (low growing) habit, and an earlier flowering time than E. apricum var. 
    apricum. The two known occurrences of E. apricum var. prostratum are 
    restricted to otherwise barren outcrops on less than 0.4 ha (1 ac) in 
    openings of Ione chaparral on private land. Mining, inadequate 
    regulatory mechanisms, habitat fragmentation, erosion, and random 
    events threaten the occurrences of this plant.
    
    Previous Federal Action
    
        Federal government actions on both plants began as a result of 
    section 12 of the Endangered Species Act of 1973, as amended (16 U.S.C. 
    1531 et seq.), which directed the Secretary of the Smithsonian 
    Institution to prepare a report on those plants considered to be 
    endangered, threatened, or extinct in the United States. The 
    Smithsonian Institution presented this report, designated as House 
    Document No. 94-51, to Congress on January 9, 1975. The report included 
    Arctostaphylos myrtifolia, Eriogonum apricum var. apricum and E. 
    apricum var. prostratum as endangered species. We published a notice on 
    July 1, 1975 (40 FR 27823), of our acceptance of the report of the 
    Smithsonian Institution as a petition within the context of section 
    4(c)(2) (petition provisions are now found in section 4(b)(3) of the 
    Act) and our intention thereby to review the status of the plant taxa 
    named therein. We included the above three taxa in the July 1, 1975, 
    notice. On June 16, 1976, we published a proposal (41 FR 24523) to 
    determine approximately 1,700 vascular plant species to be endangered 
    species pursuant to section 4 of the Act. The list of 1,700 plant taxa 
    was assembled on the basis of comments and data received by the 
    Smithsonian Institution and us in response to House Document No. 94-51 
    and the July 1, 1975, Federal Register publication. We included 
    Arctostaphylos myrtifolia, E. apricum var. apricum, and E. apricum var. 
    prostratum in our June 16, 1976, proposal.
        We summarized general comments we received in response to the 1976
    
    [[Page 28405]]
    
    proposal in an April 26, 1978, rule (43 FR 17909). The Endangered 
    Species Act Amendments of 1978 required that we withdraw all proposals 
    over 2 years old. The Act gave proposals already more than 2 years old 
    a 1-year grace period. In a December 10, 1979, Federal Register notice 
    (44 FR 70796), we withdrew our June 16, 1976, proposal, along with four 
    other proposals that had expired.
        We published a notice of review for plants on December 15, 1980 (45 
    FR 82480), that identified those plants currently being considered for 
    listing as endangered or threatened. We included Arctostaphylos 
    myrtifolia, E. apricum var. apricum, and E. apricum var. prostratum as 
    category 1 candidates for Federal listing in this document. Category 1 
    taxa were those taxa for which we had on file sufficient information on 
    biological vulnerability and threats to support preparation of listing 
    proposals but for which we are precluded from issuing proposed rules by 
    higher priority listing actions. Our November 28, 1983, supplement to 
    the notice of review (48 FR 53640) made no changes to the designation 
    for these taxa.
        We revised the plant notice of review again on September 27, 1985 
    (50 FR 39526), February 21, 1990 (55 FR 6184), and September 30, 1993 
    (58 FR 51144). In these three notices, we again included Arctostaphylos 
    myrtifolia, Eriogonum apricum var. apricum and E. apricum var. 
    prostratum as category 1 candidates. In our February 28, 1996, combined 
    animal and plant notice of review (61 FR 7596), we discontinued the 
    designation of multiple categories of candidates, and only former 
    category 1 species are now recognized as candidates for listing 
    purposes. We included all three taxa as candidates in that notice.
        Section 4(b)(3)(B) of the Act requires the Secretary to make 
    certain findings on pending petitions within 12 months of their 
    receipt. Under section 2(b)(1) of the 1982 amendments, all petitions 
    pending on October 13, 1982, are treated as having been newly submitted 
    on that date. This was the case for Arctostaphylos myrtifolia, 
    Eriogonum apricum var. apricum and E. apricum var. prostratum, because 
    we accepted the 1975 Smithsonian report as a petition. On October 13, 
    1982, we found that the petitioned listing of these species was 
    warranted, but precluded by other pending listing actions, in 
    accordance with section 4(b)(3)(B)(iii) of the Act. We published a 
    notice of this finding on January 20, 1984 (49 FR 2485). Such a finding 
    requires recycling the petition, pursuant to section 4(b)(3)(C)(i) of 
    the Act. We reviewed the finding annually in October of 1983 through 
    1994.
        We published a proposal to list Eriogonum apricum (inclusive of 
    vars. apricum and prostratum) as endangered and to list Arctostaphylos 
    myrtifolia as threatened on June 25, 1997 (62 FR 34188). We based the 
    proposal on information supplied by reports to the CNDDB, and 
    observations and reports by numerous botanists.
        Processing of this final rule conforms with our Listing Priority 
    Guidance for Fiscal Years 1998 and 1999, published on May 8, 1998 (63 
    FR 25502). The guidance clarifies the order in which we will process 
    rulemakings giving highest priority (Tier 1) to processing emergency 
    rules to add species to the Lists of Endangered and Threatened Wildlife 
    and Plants (Lists); second priority (Tier 2) to processing final rules 
    to add species to the Lists, processing proposed rules to add species 
    to the Lists, processing administrative findings on petitions (to add 
    species to the Lists, delist species, or reclassify listed species), 
    and processing a limited number of proposed or final rules to delist or 
    reclassify species; and third priority (Tier 3) to processing proposed 
    or final rules to designate critical habitat. Processing of this final 
    rule is a Tier 2 action.
        We updated this rule to reflect any changes in distribution, 
    status, and threats that occurred since publication of the proposed 
    rule and to incorporate information obtained during the public comment 
    period. This additional information did not alter our decision to list 
    the two species.
    
    Summary of Comments and Recommendations
    
        In the proposed rule published in the June 25, 1997, Federal 
    Register (62 FR 34188), we requested all interested parties to submit 
    factual reports or information that might contribute to the development 
    of a final rule. The public comment period closed on August 25, 1997. 
    We contacted appropriate State agencies, county and city governments, 
    Federal agencies, scientific organizations, and other interested 
    parties and requested comments. We published a newspaper notice in the 
    Calaveras Enterprise on July 8, 1997, the Calaveras Prospect and 
    Stockton Record on July 10, 1997, and in the Amador Ledger Dispatch on 
    July 11, 1997, which invited general public comment.
        In accordance with interagency policy published on July 1, 1994 (59 
    FR 34270), we solicited the expert opinions of three independent and 
    appropriate specialists regarding pertinent scientific or commercial 
    data and assumptions relating to the taxonomy, population status, and 
    supportive biological and ecological information for the three proposed 
    plants.
        Only one of the three requested reviewers provided comments. This 
    reviewer supported the listing of both species addressed in this rule 
    and commented specifically on Arctostaphylos myrtifolia. The reviewer 
    wished to clarify any confusion that readers of the proposed rule may 
    have had regarding the taxonomy of A. myrtifolia given the numerous 
    name changes since 1887. The reviewer emphasized that this taxon is 
    distinct and cannot be confused with any other manzanita. The numerous 
    name changes stem from differing opinions among botanists regarding the 
    relationship of this species to other California manzanitas.
        The reviewer stated that Arctostaphylos myrtifolia is adapted to 
    periodic fire, more specifically, fire recurring probably every 5 to 20 
    years. Recent suppression of the historic fire frequency has 
    facilitated the establishment of fungal pathogens contributing to the 
    demise of A. myrtifolia. The reviewer emphasized that the species could 
    face serious decline in the future without proper fire management, that 
    is, controlled burning during the appropriate time of the year and 
    under proper climatic conditions. We incorporated the comments of the 
    reviewer into the ``Summary of Factors Affecting the Species'' section 
    of this rule.
        During the comment period, we received comments (i.e., letters, 
    phone calls, and facsimiles) from a total of 16 individuals or agency 
    or group representatives concerning the proposed rule. Some people 
    submitted more than one comment to us. Seven commenters supported the 
    listing, four commenters opposed the listing, and five commenters were 
    neutral. One commenter stated his willingness to work with Amador 
    County, larger landowners, including mine operators, and us to develop 
    a habitat conservation plan for the long-term benefit of both species. 
    We organized opposing comments and other comments questioning the 
    proposed rule into specific issues. We summarized these issues and our 
    response to each as follows:
        Issue 1: Several commenters questioned the adequacy and 
    completeness of the scientific evidence reported in the proposed rule. 
    Commenters stated that listing the two plants was premature due to the 
    lack of
    
    [[Page 28406]]
    
    comprehensive and current science to support the listing.
        Service Response: In Accordance with the ``Interagency Cooperative 
    Policy on Information Standards under the Endangered Species Act,'' 
    published in the Federal Register on July 1, 1994 (59 FR 34271), we 
    impartially review all scientific and other information to ensure that 
    any information used to promulgate a regulation to add a species to the 
    list of threatened and endangered species is reliable, credible, and 
    represents the best scientific and commercial data available. We used 
    information received from the CNDDB, knowledgeable botanists, and from 
    studies specifically directed at gathering information on distribution 
    and threats to the species addressed in this final rule. We received 
    information from Federal, State, and local agencies, and consulted 
    professional botanists during the preparation of the proposed rule. We 
    documented destruction and loss of habitat and extirpation of 
    populations of these two plants from a variety of causes. We sought 
    comments on the proposed rule from Federal, State, and county entities, 
    species experts, and other individuals. We have incorporated into the 
    final rule all substantive new data received during the public comment 
    period. Specific information received that supports listing the two 
    plant species is summarized in the ``Summary of Factors Affecting the 
    Species'' section.
        Issue 2: One commenter stated that the total extent of known 
    populations of Eriogonum apricum as cited in the proposed rule is 
    incorrect. This commenter further stated that there are 10 populations 
    of E. apricum alone at the Irish Hill project site. Two commenters 
    stated that several populations of E. apricum var. apricum have been 
    discovered growing in Sacramento County, several miles north of the 
    city of Ione, along the Amador/Sacramento County line.
        Service Response: Neither commenter provided site-specific 
    information. We are aware of the 10 populations of E. apricum at the 
    Irish Hill project site; we referred to these populations in the 
    proposed rule as one occurrence in the ``Discussion of the Two 
    Species'' section. An occurrence may have several populations within 
    it. Because we have received only anecdotal reports of new locations, 
    we cannot confirm or refute the reports of E. apricum var. apricum in 
    Sacramento County. The discovery of new populations of E. apricum var. 
    apricum in Sacramento County, north of the city of Ione, along the 
    Amador/Sacramento County line, however, is consistent with a verified 
    occurrence of this species within 1,000 m (3,280.8 ft) of the 
    Sacramento County line northwest of the city of Carbondale on the Ione 
    Formation. The Ione Formation occurs in Sacramento County within the 
    general vicinity of the reported sighting. We believe that undocumented 
    populations of E. apricum var. apricum likely occur within Sacramento 
    County, but given the limited amount of potential habitat in Sacramento 
    County, we do not believe that these potential occurrences represent a 
    significant expansion of the overall range of the species, or that they 
    warrant a change in the status of the species.
        Issue 3: Several commenters stated that Eriogonum apricum vars. 
    apricum and prostratum and Arctostaphylos myrtifolia are not restricted 
    to ``laterite'' (containing an iron-rich subsoil layer) soils as 
    presented in the proposed rule. In addition, several commenters stated 
    that the proposed rule inaccurately stated that the soil on which the 
    two species grow was developed during the Eocene.
        Service Response: We received substantial evidence during the 
    comment period to document that Eriogonum apricum vars. apricum and 
    prostratum and Arctostaphylos myrtifolia occur on a much wider range of 
    substrates than was thought at the time we prepared the proposed rule. 
    However, none of this new information contradicts the claim that all 
    three taxa occur predominantly on soils developed on various strata of 
    the Ione Formation, or that the plants are restricted to a narrow range 
    in western Amador County. The relationship between substrate and the 
    distribution of these plants, however strong the correlation, is not 
    the reason we proposed these plants for listing. The specific threats 
    these taxa face are identified in the ``Summary of Factors Affecting 
    the Species'' section.
        Issue 4: One commenter stated that the greatest potential threat to 
    Eriogonum apricum is residential development. The commenter further 
    stated that well-planned mining with reclamation plans that take E. 
    apricum into account may be the best chance for the species' survival. 
    Another commenter asserted that the statement in the proposed rule that 
    the Ione buckwheat and Ione manzanita are imperiled by mining is an 
    inaccurate statement. The same commenter also noted, however, that 
    ``because of requirements of species diversity and percent of 
    vegetative cover on mined lands disturbed since 1976 . . . Ione 
    manzanita and Ione buckwheat are not species that can be considered in 
    new reclamation plans.''
        Service Response: We agree that residential development poses a 
    significant long-term threat to these species given the substantial 
    commercial and residential growth of nearby Sacramento. However, the 
    more immediate threat to the Ione buckwheat and Ione manzanita is the 
    continued extraction of mineral resources from soils that support these 
    species. Ninety-five percent of all lands that support Eriogonum 
    apricum and Arctostaphylos myrtifolia are in private ownership subject 
    to ongoing and future mining activities. Mining operations are not 
    required under State law to include locally native plants into their 
    reclamation plans if these species are not compatible with the desired 
    land use of the reclaimed site (e.g., grazing, water storage, or 
    intensive agriculture). For a more detailed description of the threats 
    these species face, see factors A and D in the ``Summary of Factors 
    Affecting the Species'' section.
        Issue 5: A few commenters stated that there are good opportunities 
    to reestablish Arctostaphylos myrtifolia on reclaimed mining areas when 
    a natural seed source occurs nearby or through the spreading of seeds 
    by mine operators.
        Service Response: We are unaware of any studies that document 
    successful long-term reestablishment of Arctostaphylos myrtifolia 
    populations on reclaimed mining areas. Mining operations in the Ione 
    area typically remove the kaolinitic clay minerals and quartz sand that 
    the species requires for long-term viability. Arctostaphylos myrtifolia 
    has been shown to reestablish on fire breaks and similar situations 
    where the original substrate was not removed, and plants have also 
    established on waste rock piles. We are not aware of any scientific 
    studies on the success of transplanting or seeding the plants under 
    field conditions. Moreover, the long-term viability of the plants which 
    have established on disturbed areas is unknown. Attempts to grow both 
    Eriogonum apricum and Arctostaphylos myrtifolia off of their 
    specialized substrate have been unsuccessful. Transplanted seedlings of 
    E. apricum grew for only about 3 years before dying. Arctostaphylos 
    myrtifolia seedlings have survived only about 10 years (Roger Raiche, 
    Horticulturalist, Univ. of California Botanical Garden, Berkeley, in 
    litt. 1997). For a more complete discussion on this topic, please see 
    factors D and E in the ``Summary of Factors Affecting the Species'' 
    section.
    
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        Issue 6: Two commenters stated that there are adequate regulatory 
    mechanisms to protect Eriogonum apricum vars. apricum and prostratum 
    and Arctostaphylos myrtifolia. These commenters believe that, through 
    compliance with the California Surface Mining and Reclamation Act 
    (SMARA) and the California Environmental Quality Act (CEQA), Amador 
    County has created ordinances and permitting procedures that adequately 
    protect these species.
        Service Response: We believe that the existing regulatory 
    mechanisms provided in the State, local, and county regulations are 
    inadequate to protect these three plants. Both CEQA and SMARA can allow 
    the destruction of these three plant taxa without adequate mitigation 
    or avoidance. For a complete discussion on this topic, see factor D in 
    the ``Summary of Factors Affecting the Species'' section and the 
    ``Available Conservation Measures'' section.
        Issue 7: One commenter stated that listing will inevitably move 
    private property into government ownership. Another commenter 
    questioned what sorts of activities could continue on private land 
    should these species be formally listed.
        Service Response: The Act does not restrict the damage or 
    destruction of listed plants due to otherwise lawful private activities 
    on private land beyond any level of protection that may be provided 
    under State law. Listing the two species as threatened or endangered 
    will not regulate mining or land clearing for farming, grazing, or fire 
    protection on private land with no Federal involvement. Other 
    activities that do not violate the taking prohibitions of section 
    9(a)(2) of the Act, along with prohibited activities, are discussed 
    further in the ``Available Conservation Measures'' section. Those 
    populations of plant species that occur on Federal lands may or may not 
    be affected by some human activities. If a Federal agency makes the 
    determination that an activity may affect a population of a listed 
    plant species, the Federal agency is required to consult with us on the 
    effects of the proposed action.
        Issue 8: One commenter questioned how landowners will know if their 
    land uses will affect the three plants if critical habitat is not 
    designated.
        Service Response: The public has access to general locational 
    information on all three of these plants through the CNDDB. In 
    addition, individuals owning land in these counties who believe that 
    their actions or activities may result in harm to one of these plants 
    may, if they desire to help conserve these species, contact us for 
    technical assistance. We seek cooperation with private landowners on 
    surveys or other conservation efforts. The complete file for this rule 
    is available for public inspection, and does contain general 
    information about where the species occur. We are always willing to 
    assist the public in matters aimed at protecting sensitive species. See 
    the ``Critical Habitat'' section for further discussion of our decision 
    not to designate critical habitat for these species.
        Issue 9: One commenter inquired whether private landowners would be 
    allowed to participate in the development of a recovery plan for these 
    species.
        Service Response: The recovery planning process will involve 
    species experts, scientists, and interested members of the public in 
    accordance with the interagency policy on recovery plans under the Act, 
    published on July 1, 1994 (59 FR 34272). The information and public 
    education needs for successful recovery of these species are many, and 
    we will address these needs in the recovery plan.
        Issue 10: One commenter stated that the proposed rule should be 
    withdrawn because we lack the authority under the Commerce Clause of 
    the Constitution to regulate species that are found solely in one State 
    and are neither harvested for commercial purposes nor transported 
    across state lines.
        Service Response: A recent decision in the United States Court of 
    Appeals for the District of Columbia Circuit (National Association of 
    Homebuilders v. Babbitt, 130 F. 3d 1041, D.C. Cir. 1997) makes it clear 
    in its application of the test used in the United States Supreme Court 
    case, United States v. Lopez, 514 U.S. 549 (1995), that regulation of 
    species limited to one State under the Act is within Congress' commerce 
    clause power. On June 22, 1998, the Supreme Court declined to accept an 
    appeal of this case (118 S. Ct. 2340 1998). Therefore, our application 
    of the Act to Arctostaphylos myrtifolia and Eriogonum apricum is 
    constitutional.
    
    Summary of Factors Affecting the Species
    
        After a thorough review and consideration of all information 
    available, we have determined that Arctostaphylos myrtifolia should be 
    classified as a threatened species and Eriogonum apricum (inclusive of 
    vars. apricum and prostratum) should be classified as an endangered 
    species. We followed the procedures found at section 4(a)(1) of the Act 
    and regulations (50 CFR part 424) implementing the listing provisions 
    of the Act. A species may be determined to be endangered or threatened 
    due to one or more of the five factors described in section 4(a)(1). 
    These factors and their application to Arctostaphylos myrtifolia C. 
    Parry (Ione manzanita) and Eriogonum apricum J. Howell (inclusive of 
    vars. apricum and prostratum R. Myatt) (Ione buckwheat) are as follows:
    
    A. The Present or Threatened Destruction, Modification, or Curtailment 
    of Their Habitat or Range
    
        Nearly all populations of both plant species occur on private or 
    non-Federal land. The primary threat facing both species is the ongoing 
    and threatened destruction and modification of their habitat by mining 
    for silica sand, clay, lignite, common sand and gravel; and reclamation 
    of mined lands involving establishment of vegetation with which these 
    species cannot co-exist. A lesser degree of threat is posed by 
    commercial or residential development, clearing for agriculture and 
    fire protection, and continued erosion due to previous fireline 
    construction and driver training for California Department of Forestry 
    and Fire Protection (CDFFP) employees.
        The habitat of Arctostaphylos myrtifolia and Eriogonum apricum 
    occurs in areas that contain valuable minerals. Clay mining began in 
    the Ione area around 1860. Since that time, the Ione area has produced 
    about a third of the fire clay in California (Chapman and Bishop 1975). 
    Lignite, a low-grade coal, also has been mined in the Ione area since 
    the early 1860s, initially for fuel, but more recently for wax used for 
    industrial purposes. Chapman and Bishop (1975) reported the Ione 
    lignites were the only lignites used commercially in the United States 
    in the production of a specialized wax (montan wax). Quartz sand used 
    in making glass containers, and laterite used for making cement also 
    are commercially mined in the Ione area (Chapman and Bishop 1975). 
    Common sands and gravels are also mined for various uses. Mining of all 
    of these deposits has resulted in the direct removal of habitat for 
    both plant species (Wood and Parker 1988; V. Thomas Parker, Professor 
    of Biology, San Francisco State University, in litt. 1994; M. Wood, in 
    litt. 1994). Strip mining of silica for glass and clay for ceramics and 
    industrial filters has extirpated (caused extinction of) populations of 
    A. myrtifolia north and south of Highway 88 (Roof 1982).
        By 1982, a significant amount of habitat already had been lost 
    (Roof 1982, Stebbins 1993; M. Wood, in litt. 1994). The exact amount of 
    habitat loss
    
    [[Page 28408]]
    
    to date cannot be quantified because much information regarding the 
    total mineral production as well as the total acreage of land newly 
    disturbed by a mining operation is proprietary (M. Showers, pers. comm. 
    1994). Fifteen active surface mines on private land near Ione continue 
    to remove the habitat of both plants; approved reclamation plans 
    identify surface removal of greater than 1,400 ha (3,500 ac) (CDFG 
    1991, Mining Reports 1976-1993; V.T. Parker, in litt. 1994; M. Wood, in 
    litt. 1994). Based on an estimate derived from mining reports on file 
    at California Department of Geology and Mines, over half of the Ione 
    chaparral habitat, numerous stands of Arctostaphylos myrtifolia, and 
    most of the occurrences of Eriogonum apricum occur within areas that 
    will be impacted by the 15 mines (Mining Reports 1976-1993). Mining has 
    eliminated several populations of A. myrtifolia south of Ione since 
    1990 (V.T. Parker, in litt. 1994). If approved, the East Lambert 
    Project, a proposed open pit to mine clay, lignite, and silica, would 
    remove part of a population of A. myrtifolia. Clay mining threatens one 
    of the two remaining occurrences of E. apricum var. prostratum (CDFG 
    1991). The second occurrence is not protected and potentially could be 
    mined (CDFG 1991). Most of the nine occurrences of E. apricum var. 
    apricum occur on private land that is not protected and could be mined.
        As discussed in factor D of this section, mining results in 
    conversion of former habitat to rangeland, pasture, and other 
    agricultural uses; landowners do not restore the original plant 
    community that was lost when the area was mined. Additionally, once the 
    area is mined, the specialized substrate required by the plants may no 
    longer be present. This type of disturbance permanently precludes 
    restoration of habitat suitable for Arctostaphylos myrtifolia and 
    Eriogonum apricum. To a lesser extent, land conversion to grazing and 
    agriculture also has degraded or destroyed the habitat for these plants 
    (Wood and Parker 1988; V.T. Parker, in litt. 1994; M. Wood, in litt. 
    1994). Both activities continue to pose threats to the habitat of the 
    subject plant taxa.
        Commercial and residential development also threatens the habitat 
    of Arctostaphylos myrtifolia. In 1993, a 43 ha (106 ac) parcel in the 
    city of Ione reported to have A. myrtifolia was cleared, presumably to 
    facilitate future development (Randy L. Johnsen, Ione City 
    Administrator, in litt. 1994). The Amador County master plan has zoned 
    an area in the northern Ione chaparral near Carbondale for industrial 
    uses. This area of about 75 ha (185 ac) is proposed to be developed 
    over the next 10 years (Ron Mittlebrunn, Amador Council of Economic 
    Development, pers. comm. 1994). Zoning for most lands outside the city 
    of Ione permits a density of one house on 16 ha (40 ac) (Gary Clark, 
    Amador County Planning Department, in litt. 1994). Habitat loss and 
    degradation outside the city of Ione results from development of small 
    ranchettes and associated clearing for fire protection, pastures, 
    buildings, and infrastructure (G. Clark, in litt. 1994). Clearing 
    destroys individual plants of both species and fragments and degrades 
    the remaining habitat.
        Mining operations, land clearing for agriculture, and commercial 
    and residential development, have fragmented and continue to fragment 
    and isolate the habitat of Arctostaphylos myrtifolia in Amador County. 
    Habitat fragmentation may disrupt natural ecosystem processes by 
    changing the amount of incoming solar radiation, water, wind, and/or 
    nutrients (Saunders et al. 1991), and further exacerbates the impacts 
    of mining, off-road vehicle use, and other human activities.
        Training activities by the CDFFP caused the degradation of the 
    population of Arctostaphylos myrtifolia occurring on the BLM Ione 
    Manzanita ACEC. Building firelines and conducting driver training 
    courses resulted in a criss-crossing of roads and trails within the 
    ACEC that reduced and fragmented the habitat (BLM 1989). Although these 
    practices were discontinued in 1991, the roads have not revegetated 
    naturally, and continued erosion of the roads and adjacent habitat 
    remains a concern (E. Bollinger, in litt. 1994). The BLM has requested 
    our technical assistance regarding the restoration of A. myrtifolia to 
    the ACEC (E. Bollinger, in litt. 1994).
    
    B. Overutilization for Commercial, Recreational, Scientific, or 
    Educational Purposes
    
        Overutilization is not currently known to be a factor for the two 
    plants. However, increased publicity from the proposed and final 
    listing rules may result in unrestricted collecting of Eriogonum 
    apricum for scientific or horticultural purposes or excessive visits 
    (and possibly trampling) by individuals interested in seeing rare 
    plants.
    
    C. Disease or Predation
    
        Livestock graze where one population of Eriogonum apricum var. 
    prostratum occurs, but grazing is not considered as harmful (CNDDB 
    1997). An unidentified fungal pathogen has caused major die-back of 
    partial or entire stands of Arctostaphylos myrtifolia throughout its 
    range (Wood and Parker 1988; M. Wood, in litt. 1994). The majority of 
    populations of A. myrtifolia show signs of die-back. The fungal disease 
    is a serious problem for the populations south of Ione (M. Wood, pers. 
    comm. 1994). Stands along Highway 88 that were healthy a few years ago 
    are apparently being killed with little evidence of seedling 
    regeneration (Neil Havlik, Solano County Farmland and Open Space 
    Foundation, pers. comm. 1994). The fungal problems are clearly due to 
    senescence (extreme aging) of older individuals and pathogen loads that 
    build up with crowding and accumulation of organic debris due to fire 
    suppression (R. Raiche, in litt. 1997). To learn more about the 
    management needs of A. myrtifolia, Wood and Parker conducted a series 
    of controlled burns to test the regeneration of stands that had no, 
    partial, and complete die-back. Stands that the fungus completely 
    killed before burning did not regenerate. Healthy and partially 
    affected stands regenerated, but study results did not determine 
    whether this regeneration will result in healthy stands (M. Wood, in 
    litt. 1994).
    
    D. The Inadequacy of Existing Regulatory Mechanisms
    
        Eriogonum apricum vars. apricum and prostratum are listed as 
    endangered under the California Endangered Species Act (CESA) (chapter 
    1.5 section 2050 et seq. of the California Fish and Game Code and Title 
    14 California Code of Regulations 670.2). Individuals are required to 
    obtain a management authorization from CDFG to possess or ``take'' a 
    listed species under the CESA. Although the ``take'' of State-listed 
    plants is prohibited (California Native Plant Protection Act, chapter 
    10 sec. 1908 and CESA, chapter 1.5 sec. 2080), State law exempts the 
    taking of such plants via habitat modification or land use changes by 
    the owner. This State law does not necessarily prohibit activities that 
    could extirpate this species. After CDFG notifies a landowner that a 
    State-listed plant grows on his or her property, State law requires 
    only that the landowner notify the agency ``at least 10 days in advance 
    of changing the land use to allow salvage of such a plant'' (Native 
    Plant Protection Act, chapter 10 sec. 1913). Ten days may not allow 
    adequate time for agencies to coordinate the salvage of the plants. 
    Moreover, salvage is an outdated and biologically inappropriate 
    mitigation that is inconsistent with measures implemented through 
    section 7 of the Act. California Senate Bill 879,
    
    [[Page 28409]]
    
    passed in 1997 and effective January 1, 1998, requires individuals to 
    obtain a section 2081(b) permit from CDFG to take a listed species 
    incidental to otherwise lawful activities, and requires full mitigation 
    of all impacts and successful implementation of all measures feasible. 
    The ability of these requirements to protect species has not been 
    tested, and we will need several years to evaluate their effectiveness 
    in conserving species.
        The California Environmental Quality Act of the California Public 
    Resources Code (chapter 2 sec. 21050 et seq.) requires a full 
    disclosure of the potential environmental impacts of proposed projects. 
    The public agency with primary authority or jurisdiction over the 
    project is designated as the lead agency and is responsible for 
    conducting a review of the project and consulting with the other 
    agencies concerned with the resources affected by the project. Section 
    15065 of the CEQA guidelines, now undergoing amendment, requires a 
    finding of significance if a project has the potential to ``reduce the 
    number or restrict the range of a rare or endangered plant or animal.'' 
    Species that are eligible for listing as rare, threatened, or 
    endangered are given the same protection as species officially listed 
    under the State or Federal governments. Once significant effects are 
    identified, the lead agency has the option of requiring mitigation for 
    effects through changes in the project or deciding that overriding 
    considerations make mitigation infeasible. In the latter case, the 
    State may approve projects that cause significant environmental damage, 
    such as the destruction of State-listed endangered species. The 
    protection of Eriogonum apricum var. apricum, E. apricum var. 
    prostratum, and Arctostaphylos myrtifolia under CEQA is, therefore, 
    dependent upon the discretion of the lead agency.
        Section 21080(b) of CEQA allows certain projects to be exempted 
    from the CEQA process. The State may approve or carry out ministerial 
    projects, those projects that the public agency must approve after the 
    applicant shows compliance with certain legal requirements, without 
    undertaking CEQA review. Examples of ministerial projects include final 
    subdivision map approval and most building permits (Bass and Herson 
    1994). In addition, recent proposed revisions to CEQA guidelines, if 
    made final, may weaken protection for threatened, endangered, and other 
    sensitive species.
        The California Surface and Mining Reclamation Act (SMARA) of 1975 
    (California Public Resources Code chapter 9 sec. 2710 et seq.) requires 
    preventing or minimizing adverse environmental effects and reclaiming 
    mined lands to a useable condition that is readily adaptable for 
    alternative land uses. Although SMARA requires reclamation for mining 
    activities, the standards for reclamation and the success of any 
    revegetation is judged on the approved end use of the land. Approved 
    examples of these end uses for mining activities within the Ione area 
    include water storage for irrigation, grazing, rangeland, seeding with 
    grasses for pasture, and intensive agriculture (Mining Reports 1976-
    1993). SMARA does not require replacement of the same vegetation type, 
    species, or percentage of vegetation cover as the habitat that is lost. 
    No approved mining reclamation plans included measures to attempt 
    restoration of either Arctostaphylos myrtifolia or Eriogonum apricum or 
    the Ione chaparral plant community, although one plan indicated an 
    intention to allow A. myrtifolia, known to occur on the site, to re-
    establish itself (Mining Reports 1976-1993). We received a description 
    of a reclamation project during the public comment period on the 
    proposed rule (Mike Kizer, Ione Minerals & Refractories, in litt. 
    1997). An area previously stripped of all soil, vegetation, and 
    overburden is contoured to a 3:1 slope. All vegetation growing on 
    another area where A. myrtifolia is growing is crushed with a 
    bulldozer. The crushed vegetation and soil is scraped and spread 
    directly on the newly established slope. The site is then seeded with a 
    mixture of non-native legumes and grasses and fertilized and limed. 
    Mulch is then applied for erosion control. Based on this description of 
    what is presumably a typical reclamation project, we maintain that land 
    reclamation under SMARA establishes only a goal of revegetation of the 
    site without regard to the original species composition and structure, 
    not restoration of the original plant community that was lost when the 
    area was mined. Even though such efforts may result in the 
    reestablishment of A. myrtifolia on reclaimed sites, they are 
    inadequate to meet the purpose of the Act, as stated in section 2(b), 
    to ``provide a means whereby the ecosystems upon which endangered 
    species and threatened species depend may be conserved.'' Moreover, 
    SMARA does not apply to many activities, including the prospecting or 
    extraction of minerals for commercial purposes, or the removal of 
    material that lies above or between natural mineral deposits in amounts 
    less than 764.6 cubic m (1,000 cubic yards) in any location of 0.4 ha 
    (1 ac) or less.
        In addition, SMARA is also inadequate for protection of these 
    species because reclamation plans are required to be submitted only for 
    operations conducted after January 1, 1976. Surface mining operations 
    that were permitted or authorized prior to January 1, 1976, are not 
    required to submit reclamation plans as long as no substantial changes 
    are made in their operation. The lead agency is responsible for 
    determining what constitutes a substantial change in operation.
        Although the city of Ione General Plan and the Environmental Impact 
    Report of the Banks annexation to the city of Ione includes the 
    protection of Arctostaphylos myrtifolia and Eriogonum apricum as a 
    goal, the City has no regulatory mechanism to stop land clearing and/or 
    preserve natural habitat (R. Johnsen, in litt. 1994). The County of 
    Amador has taken steps toward protecting rare plants that grow along 
    Ione area roadsides through the designation of surveyed sites as 
    Environmentally Sensitive Areas. The California Department of 
    Transportation (Caltrans) has also designated a segment of State Route 
    88 near Ione as a Botanical Management Area (Hartwell 1997). Caltrans 
    manages this segment to encourage regrowth of native plants that grow 
    on the highway right-of-way (Hartwell 1997).
        Two preserves support occurrences of Arctostaphylos myrtifolia and 
    Eriogonum apricum var. apricum. The Apricum Hill Ecological Reserve, 
    managed by the CDFG, is about 15.2 ha (37.5 ac). The Ione Manzanita 
    ACEC, managed by BLM, covers 35 ha (86 ac). Both preserves provide some 
    protection of three occurrences of A. myrtifolia and one occurrence of 
    E. apricum var. apricum; however, they are small sites and subject to 
    edge effects such as shading by taller shrubs or competition with 
    invasive vegetation (see factors A and E of this section for more 
    detail).
    
    E. Other Natural or Manmade Factors Affecting Its Continued Existence
    
        The effects on Arctostaphylos myrtifolia of changing the frequency 
    of occurrence of fire have not been well-studied. Arctostaphylos 
    myrtifolia lacks the ability to crown sprout and is killed outright by 
    fire. It must, therefore, reproduce by seed. Roof (1982) and Woodward 
    (in litt. 1994) reported abundant post-fire seed germination. Woodward 
    also reported successful reestablishment of the species on ground 
    scraped by tractors during a fire suppression operation. The response 
    of
    
    [[Page 28410]]
    
    A. myrtifolia to fire appears, however, to be irregular and 
    unpredictable (Wood and Parker 1988).
        Wood reports fire suppression results in stand die-off without 
    regeneration (M. Wood, in litt. 1994). Scientists have observed mature 
    individuals in well-established, undisturbed natural stands die. The 
    species appears to have a low regenerative potential in closed stands 
    (Wood and Parker 1988). Individual plants are thought to live not much 
    longer than 50 years (Gankin and Major 1964). Individuals maintained in 
    cultivation for many years have died suddenly for no apparent reason 
    (S. Edwards, cited in Wood and Parker 1988).
        Fire, therefore, appears to be necessary for the long-term 
    maintenance of the Ione chaparral community. Controlled burning may be 
    a viable means of ensuring adequate reproduction of Arctostaphylos 
    myrtifolia, or perhaps even controlling or preventing loss due to the 
    fungal pathogen (V.T. Parker, in litt. 1994; M. Wood, in litt. 1994). 
    Field observations and controlled experiments to date, however, suggest 
    exercising caution in the use of fire until the reasons for the 
    variability in the response of A. myrtifolia are better understood. 
    Progress toward better understanding of the response of A. myrtifolia 
    to fire was thwarted when long term study sites established to study 
    this response were graded and cleared by the landowner (V.T. Parker, in 
    litt. 1994; M. Wood, in litt. 1994).
        Reestablishment on mined areas may be difficult for the Ione 
    chaparral plant community in general, and for Arctostaphylos myrtifolia 
    in particular, due to a lack of the required specialized substrate and 
    an absence of proven propagation methods (E. Bollinger, in litt. 1994). 
    Researchers have attempted a variety of germination and seed bank 
    experiments on A. myrtifolia without success (Wood and Parker 1988). 
    Others have also attempted to cultivate the species with little or no 
    success (R. Gankin, cited in Wood and Parker 1988). Although the plant 
    has a limited capacity to root from its lower branches, Roof (1982) 
    reported that he was unaware of even a single plant that had been grown 
    or cultivated from a rooted branch. The only report of successful 
    cultivation indicates that the plant requires high soil-acidity and 
    heavy supplements of soluble aluminum (Roof 1982).
        Throughout its range, on habitat edges where better soil 
    development occurs, Arctostaphylos myrtifolia is being out-competed by 
    other native vegetation (M. Wood, pers. comm. 1994; R. Woodward, in 
    litt. 1994). Arctostaphylos viscida (white-leaf manzanita), a more 
    rapidly growing, taller manzanita, encroaches along the edge of stands 
    of A. myrtifolia. Arctostaphylos myrtifolia is eliminated when A. 
    viscida grows tall enough to shade it (M. Wood, pers. comm. 1994; R. 
    Woodward, in litt. 1994). This is not likely to be a significant threat 
    to the species, however, because most stands occur on substrates from 
    which taller shrubs are excluded.
        As discussed in factor A, habitat fragmentation may alter the 
    physical environment. Plant species may disappear from chaparral 
    fragments that are from 10 to 100 ha (24.7 to 247 ac) in size due to 
    persistent disturbance and potentially due to change in fire frequency 
    (Soule et al. 1992). In addition, habitat fragmentation increases the 
    risks of extinction due to random environmental, demographic, or 
    genetic events (Soule et al. 1992). The two, small, isolated 
    populations of Eriogonum apricum var. prostratum, makes random 
    extinction more likely. Chance events, such as disease outbreaks, 
    reproductive failure, extended drought, landslides, or a combination of 
    several such events, could destroy part of a single population or 
    entire populations. A local catastrophe also could decrease a 
    population to so few individuals that the risk of extirpation due to 
    genetic and demographic problems inherent to small populations would 
    increase.
        We have carefully assessed the best scientific and commercial 
    information available regarding the past, present, and future threats 
    faced by these species in making this final determination. Eriogonum 
    apricum (inclusive of vars. apricum and prostratum) is verified from 11 
    occurrences on approximately 4.4 ha (11 ac) in Amador County, 
    California. The species is endangered by mining, clearing of vegetation 
    for agriculture and for fire protection, inadequate regulatory 
    mechanisms, habitat fragmentation, residential and commercial 
    development, ongoing erosion, and random events. Eriogonum apricum is 
    in danger of extinction throughout all or a significant portion of its 
    range and the preferred action is, therefore, to list it as endangered. 
    Arctostaphylos myrtifolia is reported from 17 sites, and estimated to 
    occur in a total of about 100 stands covering about 404.7 ha (1,000 ac) 
    in Amador County, with a few occurrences in Calaveras County. It is 
    threatened by mining, disease, clearing of vegetation for agriculture 
    and for fire protection, inadequate regulatory mechanisms, habitat 
    fragmentation, increased residential development, and changes in fire 
    frequency. Although A. myrtifolia faces many of the same threats as E. 
    apricum, the significantly wider range and greater number of 
    populations and individuals of A. myrtifolia moderate the threats. 
    Thus, A. myrtifolia is not now in danger of extinction throughout a 
    significant portion of its range, as is E. apricum, but is likely to 
    become endangered within the foreseeable future. Therefore, the 
    preferred action is to list A. myrtifolia as threatened.
    
    Critical Habitat
    
        Section 3 of the Act defines critical habitat as: (i) the specific 
    areas within the geographical area occupied by a species, at the time 
    it is listed in accordance with the Act, on which are found those 
    physical or biological features (I) essential to the conservation of 
    the species and (II) that may require special management consideration 
    or protection; and (ii) specific areas outside the geographical area 
    occupied by a species at the time it is listed, upon a determination 
    that such areas are essential for the conservation of the species. 
    ``Conservation,'' as it is defined in section 3(3) of the Act, means 
    the use of all methods and procedures needed to bring the species to 
    the point at which listing under the Act is no longer necessary.
        Section 4(a)(3) of the Act, as amended, and implementing 
    regulations (50 CFR 424.12) require that, to the maximum extent prudent 
    and determinable, the Secretary designate critical habitat at the time 
    the species is determined to be endangered or threatened. The 
    regulations (50 CFR 424.12(a)(2)) state that designation of critical 
    habitat is not determinable when one or both of the following 
    situations exist--(1) information sufficient to perform required 
    analysis of the impacts of the designation is lacking, or (2) the 
    biological needs of the species are not sufficiently well known to 
    permit identification of an area as critical habitat. The regulations 
    (50 CFR 424.12(a)(1)) state that designation of critical habitat is not 
    prudent when one or both of the following situations exist--(1) the 
    species is threatened by taking or other human activity, and 
    identification of critical habitat can be expected to increase the 
    degree of threat to the species, or (2) such designation of critical 
    habitat would not be beneficial to the species.
        We find that designation of critical habitat is not prudent for 
    Arctostaphylos myrtifolia and Eriogonum apricum, because of increased 
    degree of threat to each species and lack of benefit. The detriment to 
    the species outweighs any
    
    [[Page 28411]]
    
    benefit that such designation may provide. The reasons for not 
    designating critical habitat for these species is discussed below.
        All three occurrences of Arctostaphylos myrtifolia on Federal lands 
    are managed by the BLM; one of these occurrences lies within the Ione 
    Manzanita ACEC. On Federal lands, modification of occupied habitat by 
    any action authorized by the BLM is unlikely to occur without 
    consultation under section 7 of the Act because BLM managers are well-
    aware of the presence and locations of A. myrtifolia (BLM 1989; E. 
    Bollinger, in litt. 1994). Establishment of the ACEC indicates that the 
    BLM will give the protection of the rare plant community on this parcel 
    the highest priority in all management decisions (E. Bollinger, in 
    litt. 1994). The BLM prohibits grazing in the ACEC, and has implemented 
    erosion control measures on an off-road vehicle course previously used 
    by CDFFP. In addition, the BLM has functionally withdrawn the ACEC and 
    other habitats known to be occupied by the species from mineral entry 
    (E. Bollinger, in litt. 1994; Al Franklin, Botanist, BLM, Folsom 
    Resource Area, pers. comm. 1998) and has developed a management plan 
    for the ACEC (BLM 1989). The BLM has also authorized experimental 
    transplantation studies on the ACEC (Garland 1997). We believe, 
    therefore, that designation of critical habitat on Federal land would 
    confer no additional benefit to the species beyond that which is 
    already afforded by current management.
        Arctostaphylos myrtifolia faces human-caused threats (see factors A 
    and E in ``Summary of Factors Affecting the Species'' section) and 
    occurs predominately on private lands. Vandalism of A. myrtifolia has 
    already occurred. A 43-hectare (106-acre) parcel of land previously 
    identified in a public document as occupied habitat for this species 
    was cleared in 1993, presumably to facilitate future development (R. 
    Johnsen, in litt. 1994). A second incident of vandalism occurred in 
    July 1997 shortly after the proposed listing rule was published in the 
    Federal Register (Garland 1997). In this second incident, unknown 
    vandals destroyed a scientific propagation study plot for A. myrtifolia 
    on lands managed by the BLM.
        Eriogonum apricum is known from only 11 verified populations 
    covering an estimated total of 4.5 ha (11 ac) of habitat. Eriogonum 
    apricum occurs in the same general area and on similar substrates as 
    Arctostaphylos myrtifolia which has been vandalized as described above. 
    Because of its few populations, E. apricum is especially vulnerable to 
    impacts from loss of individuals or habitat damage due to vandalism.
        The publication of precise maps and descriptions of critical 
    habitat in the Federal Register, as required for the designation of 
    critical habitat, however, would further increase the degree of threat 
    to these species from vandalism and could contribute to their decline 
    by making locational information readily available. Critical habitat 
    designation requires publication of proposed and final rules in the 
    Federal Register including both maps and specific descriptions of 
    critical habitat using reference points and lines that can be matched 
    to standard topographic maps of the area (see 16 U.S.C. 
    1533(b)(5)(A)(I) and (6)(A); 50 CFR 424.12(c), 424.16(a) and 
    424.18(a)). Once published in the Federal Register, proposed and final 
    rules are readily available over the Internet, where complete copies, 
    including maps, may be downloaded. The Act also requires us to publish 
    a notice of any critical habitat proposal in a newspaper of general 
    circulation and hold a public hearing upon request (16 U.S.C. 
    1533(b)(5)(D) and (E)). While the listing process provides the public 
    with general information about the habitat of a species and where a 
    species might occur in general terms, critical habitat designation 
    makes more specific locational information readily available to any 
    would-be vandal.
        We find, therefore, that the increased degree of threat to 
    Arctostaphylos myrtifolia and Eriogonum apricum from vandalism and 
    habitat destruction outweigh any benefits that might derive from the 
    designation of critical habitat.
    
    Available Conservation Measures
    
        Conservation measures provided to species listed as endangered or 
    threatened under the Act include recognition, recovery actions, 
    requirements for Federal protection, and prohibitions against certain 
    activities. Recognition through listing encourages and results in 
    conservation actions by Federal, State, local agencies, private 
    organizations, and individuals. The Act provides for possible land 
    acquisition and cooperation with the States and requires development of 
    recovery plans for all listed species. We discuss the protection 
    required of Federal agencies and the prohibitions against certain 
    activities involving listed plants below.
        Section 7(a) of the Act requires Federal agencies to evaluate their 
    actions with respect to any species that is proposed or listed as 
    endangered or threatened and with respect to its critical habitat, if 
    any is being designated. Regulations implementing this interagency 
    cooperation provision of the Act are codified at 50 CFR part 402. 
    Section 7(a)(4) of the Act requires Federal agencies to confer with us 
    on any action that is likely to jeopardize the continued existence of a 
    species proposed for listing or result in destruction or adverse 
    modification of proposed critical habitat. If we subsequently list a 
    species, section 7(a)(2) requires Federal agencies to ensure that 
    activities they authorize, fund, or carry out are not likely to 
    jeopardize the continued existence of the species or to destroy or 
    adversely modify its critical habitat. If a Federal action may affect a 
    listed species or its critical habitat, the responsible Federal agency 
    must enter into formal consultation with us.
        Almost all of the occurrences for both species are on private land. 
    Three occurrences of Arctostaphylos myrtifolia and one occurrence of 
    Eriogonum apricum var. apricum exist entirely or partially on Federal 
    land managed by the BLM. Other potential Federal involvement includes 
    the construction and maintenance of roads and highways by the Federal 
    Highway Administration (two populations of E. apricum var. apricum 
    occur along rights-of-way owned by Caltrans).
        Listing these two plant species would provide for development of a 
    recovery plan (or plans) for them. Such plan(s) would bring together 
    both State and Federal efforts for conservation of the plants. The 
    plan(s) would establish a framework for agencies to coordinate 
    activities and cooperate with each other in conservation efforts. The 
    plan(s) would set recovery priorities and estimate costs of various 
    tasks necessary to accomplish them. It also would describe site-
    specific management actions necessary to achieve conservation and 
    survival of the two plants. Additionally, pursuant to section 6 of the 
    Act, we would be more likely to grant funds to affected States for 
    management actions promoting the protection and recovery of these 
    species.
        The Act and its implementing regulations set forth a series of 
    general prohibitions and exceptions that apply to all endangered or 
    threatened plants. All prohibitions of section 9(a)(2) of the Act, 
    implemented by 50 CFR 17.61 for endangered plants and 17.71 for 
    threatened plants, apply. These prohibitions, in part, make it illegal 
    for any person subject to the jurisdiction of the United States to 
    import or export, transport in interstate or foreign commerce in the 
    course of a commercial activity, sell or offer for sale in interstate 
    or foreign commerce, or remove and
    
    [[Page 28412]]
    
    reduce the species to possession from areas under Federal jurisdiction. 
    In addition, for plants listed as endangered, the Act prohibits 
    malicious damage or destruction on areas under Federal jurisdiction, 
    and the removal, cutting, digging up, or damaging or destroying of such 
    plants in knowing violation of any State law or regulation, including 
    state criminal trespass law. Section 4(d) of the Act allows for the 
    provision of such protection to threatened species through regulation. 
    This protection may apply to Arctostaphylos myrtifolia in the future if 
    regulations are promulgated. Seeds from cultivated specimens of 
    threatened plants are exempt from these prohibitions provided that 
    their containers are marked ``Of Cultivated Origin'' on the shipping 
    containers. Certain exceptions to the prohibitions apply to our agents 
    and agents of State conservation agencies.
        It is our policy (59 FR 34272) to identify to the maximum extent 
    practicable at the time a species is listed those activities that would 
    or would not constitute a violation of section 9 of the Act. The intent 
    of this policy is to increase public awareness of the effect of the 
    listing on proposed and ongoing activities within a species' range. 
    Less than five percent of the occurrences of the two species occur on 
    public (Federal) lands. Collection, damage, or destruction of these 
    species on Federal lands is prohibited, although in appropriate cases a 
    Federal endangered species permit may be issued to allow collection for 
    scientific or recovery purposes. Such activities on non-Federal lands 
    would constitute a violation of section 9 when conducted in knowing 
    violation of California State law or regulations or in violation of 
    State criminal trespass law.
        Activities that are unlikely to violate section 9 include light to 
    moderate livestock grazing, clearing a defensible space for fire 
    protection around one's personal residence, and landscaping (including 
    irrigation) around one's personal residence. Direct questions regarding 
    whether specific activities will constitute a violation of section 9 to 
    the Field Supervisor of the Sacramento Field Office (see ADDRESSES 
    section).
        The Act and 50 CFR 17.62 (for endangered plants) and 17.72 (for 
    threatened plants) also provide for the issuance of permits to carry 
    out otherwise prohibited activities involving endangered or threatened 
    plants under certain circumstances. Such permits are available for 
    scientific purposes and to enhance the propagation or survival or the 
    species. For threatened plants, permits also are available for 
    botanical or horticultural exhibition, educational purposes, or special 
    purposes consistent with the purposes of the Act. It is anticipated 
    that few trade permits would ever be sought or issued for 
    Arctostaphylos myrtifolia and Eriogonum apricum, because these species 
    are not common in cultivation or in the wild. You can obtain copies of 
    the regulations regarding listed species and inquire about prohibitions 
    and permits by contacting the U.S. Fish and Wildlife Service, 
    Endangered Species Permits, 911 N.E. 11th Avenue, Portland, Oregon 
    97232-4181 (telephone 503/231-2063; facsimile 503/231-6243).
    
    National Environmental Policy Act
    
        We have determined that Environmental Assessments and Environmental 
    Impact Statements as defined under the authority of the National 
    Environmental Policy Act of 1969, need not be prepared in connection 
    with regulations adopted pursuant to section 4(a) of the Act. We 
    published a notice outlining our reasons for this determination in the 
    Federal Register on October 25, 1983 (48 FR 49244).
    
    Paperwork Reduction Act
    
        This rule does not contain any new collections of information other 
    than those already approved under the Paperwork Reduction Act, 44 
    U.S.C. 3501 et seq., and assigned Office of Management and Budget 
    clearance number 1018-0094. An agency may not conduct or sponsor, and a 
    person is not required to respond to, a collection of information 
    unless it displays a currently valid control number. For additional 
    information concerning permit and associated requirements for 
    endangered and threatened plants, see 50 CFR 17.62 and 17.72.
    
    References Cited
    
        A complete list of all references cited herein is available upon 
    request from the Field Supervisor, Sacramento Field Office (see 
    ADDRESSES section).
        Author. The primary authors of this final rule are Kirsten Tarp and 
    Jason Davis, Sacramento Field Office (see ADDRESSES section).
    
    List of Subjects in 50 CFR Part 17
    
        Endangered and threatened species, Exports, Imports, Reporting and 
    recordkeeping requirements, Transportation.
    
    Regulations Promulgation
    
        For the reasons given in the preamble, we amend 50 CFR part 17 as 
    set forth below:
    
    PART 17--[AMENDED]
    
        1. The authority citation for part 17 continues to read as follows:
    
        Authority: 16 U.S.C. 1361-1407; 16 U.S.C. 1531-1544; 16 U.S.C. 
    4201-4245; Pub. L. 99-625, 100 Stat. 3500, unless otherwise noted.
    
        2. In Sec. 17.12(h) add the following to the List of Endangered and 
    Threatened Plants in alphabetical order under ``FLOWERING PLANTS:''
    
    
    Sec. 17.12  Endangered and threatened plants.
    
    * * * * *
        (h) * * *
    
    --------------------------------------------------------------------------------------------------------------------------------------------------------
                            SPECIES
    --------------------------------------------------------    Historic Range           Family            Status      When listed    Critical     Special
             Scientific name                Common Name                                                                               habitat       rules
    --------------------------------------------------------------------------------------------------------------------------------------------------------
             FLOWERING PLANTS
     
                       *                  *                  *                  *                  *                  *                  *
    Arctostaphylos myrtifolia........  Ione manzanita......  U.S.A. (CA)........  Ericaceae--Heath...  T                       661           NA           NA
     
                       *                  *                  *                  *                  *                  *                  *
    Eriogonum apricum................  Ione buckwheat        U.S.A. (CA)........  Polygonaceae--Buckw  E                       661           NA           NA
                                        (=Irish Hill                               heat.
                                        buckwheat).
    
    [[Page 28413]]
    
     
    (inclusive of vars. apricum and
     prostratum).
     
                       *                  *                  *                  *                  *                  *                  *
    --------------------------------------------------------------------------------------------------------------------------------------------------------
    
        Dated: April 16, 1999.
    Jamie Rappaport Clark,
    Director, U.S. Fish and Wildlife Service.
    [FR Doc. 99-13250 Filed 5-25-99; 8:45 am]
    BILLING CODE 4310-55-P
    
    
    

Document Information

Effective Date:
6/25/1999
Published:
05/26/1999
Department:
Fish and Wildlife Service
Entry Type:
Rule
Action:
Final rule.
Document Number:
99-13250
Dates:
June 25, 1999.
Pages:
28403-28413 (11 pages)
RINs:
1018-AE25
PDF File:
99-13250.pdf
CFR: (1)
50 CFR 17.12