U.S. Fish and Wildlife Service (USFWS). 2000. Final rule to list the Sierra Nevada distinct population segment of the California bighorn sheep as endangered. Federal Register 65(1):20-30.

Plissner, J. H., and S. M. Haig. 2000. Status of a broadly distributed endangered species: results and implications of the second International Piping Plover Census. Canadian Journal of Zoology 78:128-139.

Sherwin, R. E., D. Stricklan, and D. S. Rogers. 2000. Roosting affinities of Townsend's Big-eared Bat (Corynorhinus townsendii) in northern Utah. Journal of Mammalogy 81:939-947.

Wehausen, J. D., and R. R. Ramey, II. 2000. Cranial morphometric and evolutionary relationships in the northern range of Ovis canadensis. Journal of Mammalogy 81:145-161.

Bossard, C.C., J.M. Randall, and M. Hoshovsky. (eds.) 2000. Invasive Plants of California's Wildlands. University of California Press, Berkeley, CA.

Unknown (2000) Mexican Spotted Owl Inventory and Monitoring, 2000. Smokey Bear Ranger District, Lincoln National Forest, USFS. 133 p.

Oakes, C.L. 2000. History and consequence of keystone mammal eradication in the desert grasslands: the Arizona black-tailed prairie dog (cynomys ludovicianus arizonensis). Dissertation, The University of Texas at Austin. 392 p.

Williams, B. 2000. gila_mso - a GIS coverage of Mexican Spotted Owl Protected Activity Centers (PACs) for the Gila National Forest.

Neville, T. 2000. IKONOS imagery over the Oscura Mtns, dated 4-26-2000 re-geocorrected.

Neville, T. and Jon-Paul Oliva. 2000. Riparian Characterization and Inventory.

Hyder, D. 2000. Documentation of mitigation measures for 9 Brack's cacti (Sclerocactus cloveriae var. brackii) positioned near Cross Timbers Operating Company Federal F #1E well pad.

Unknown. (2000) Length-Frequency Data for Trout in Rito de la Olla, Frijoles Creek, and Palociento Creek. Carson Supervisor's Office, Carson National Forest, USFS. 17 p.

Deeble, B.D. 2000. Sharp-tailed grouse habitat and population investigation in the upper Blackfoot Valley. Field study final report. Order no. EBP990029. Bureau of Land Management, Garnet District. Missoula, Montana. 11 pp.

Cook, R.R., C.H. Flather and K.R. Wilson. 2000. Faunal Characteristics of the Southern Rocky Mountains of New Mexico: Implications for Biodiversity Analysis and Assessment. Report prepared for USDA Forest Service Rocky Moutain Research Station, Albuque

Schwarz, H. R. 2000. Y-2000 ferruginous hawk summary for New Mexico. 1 p.

Neville, T. 2000. Oscura and San Andres 1935 Mosaics of Aerial Photos.

Neville, T. 2000. NM Natural Heritage Historic Rio Grande.

U.S. Fish and Wildlife Service. 2000. Endangered and Threatened Wildlife and Plants: Proposal to reclassify and remove the gray wolf from the list of endangered wildlife in portions of the conterminous United States; Proposal to establish three special re

Johnson, K. 2000. Lesser Prairie-chicken habitat use on the Sand Ranch and population status in the Caprock Wildlife Habitat Management Area, 2000. 23 p.

Lindsey, K., B. Horwith, and E. A. Schreiber. 2000. Status of the Magnificent Frigatebird in the West Indies. Pp. 58-64 in E. A. Schreiber and D. S. Lee (editors) Status and Conservation of West Indian Seabirds. Society of Caribbean Ornithology Special Pu

Platania, S.P. 2000. Life history of Pecos Pupfish. Report to NM Game and Fish and U.S. Fish and Wildlife Service, Section 6 E-42-2. 38p.

Gaston, A. J., and J. M. Hipfner. 2000. Thick-billed Murre (Uria lomvia). No. 497 IN A. Poole and F. Gill, editors, The birds of North America. The Birds of North America, Inc., Philadelphia, PA. 32pp.

Gehlbach, F. R., and N. Y. Gehlbach. 2000. Whiskered Screech-Owl (Otus trichopsis). No. 507 IN A. Poole and F. Gill, editors. The birds of North America. The Birds of North America, Inc., Philadelphia. 24pp.

Gratto-Trevor, C. L. 2000. Marbled Godwit (Limosa fedoa). No. 492 IN A. Poole and F. Gill, editors, The birds of North America. The Birds of North America, Inc., Philadelphia, PA.

Pook, C. E., W. Wuster, and R. S. Thorpe. 2000. Historical biogeography of the western rattlesnake (Serpentes: Viperidae: Crotalus viridis), inferred from mitochondrial DNA sequence information. Molecular Phylogenetics and Evolution 15:269-282.

Smith, C. M., F. Cooke, G. J. Robertson, R. I. Goudie, and W. S. Boyd. 2000. Long-term pair bonds in Harlequin Ducks. Condor 102:201-205.

Wilcox, M. D., Wilcox, D. A., Beaman, K. R., and Painter, C. W.. 2000. Geographic distribution: Tantilla yaquia (Yaqui Blackhead Snake). Herpetological Review. 31(3):187.

Dunkle, S.W. 2000. Dragonflies Through Binoculars. A Field Guide to Dragonflies of North America. Oxford University Press: New York, New York. 266 pp.

Washington Department of Fish and Wildlife (WDFW). 2000. Changes in the sage grouse range throughout western North America. February 18, 2000, draft map of current and historic sage grouse distribution, produced by the Washington Department of Fish and Wi

Patterson, J. (2000) Inventory of Completion Report, Sensitive Plant Survey, Lincoln National Forest, Hexalextris nitida. Guadalupe RD, Lincoln NF, USFS.

NMSU Herbarium. 2000. Excel spreadsheet containing NMSU specimen records for the New Mexico Rare Plant Technical Council mapping project.

Kauffman, D. 2000 Mexican Spotted Owl Inventory Form. USFS.

Unknown (2000) Norhtern Goshawk Sightings, Smokey Bear Ranger District. Lincoln Supervisor's Office, Lincoln National Forest, USFS. 1 p.

Davis, D. 2000. Survey for active lesser prairie-chicken leks: Spring 2000. New Mexico Department of Game and Fish. 16p.

Taylor, D. 2000. E-mails concerning birds sighted at Davies Tank on White Sands Missile Range, New Mexico.

Neville, T. and Oliva, J. 2000. New Mexico State Land Office Riparian Characterization & Inventory. In-house working directories.

California Department of Fish and Game (CDFG). 2000. California Wildlife Habitats Relationship System (CWHR). California Department of Fish and Game, California Interagency Wildlife Task Group. Online: http://www.dfg.ca.gov/whdab/cwhr/B281.html

USGS. 2000. National Elevation Dataset (NED) New Mexico (30 meter) US Geological Survey June 2000.

Johnson, K. and H. Smith. 2000. Southwestern Willow Flycatcher surveys at Isleta Pueblo, New Mexico. Natural Heritage New Mexico Publ. No. 00-GTR-222. Natural Heritage New Mexico, University of New Mexico, Albuquerque, NM. 24 p.

Painter, C. and M.R., Cummer. 2000. Plethodon neomexicanus activity plot biometric data.

Johnson, K., L. Delay, P. Neville. 2000. Use of satellite imagery to detect prairie dog towns. Natural Heritage New Mexico Publ. No. 00-GTR-322. Natural Heritage New Mexico, University of New Mexico, Albuquerque, NM. 15 p.

Lydeard, C., R. Minton, and J.D. Williams. 2000. Prodigious polyphyly in imperiled freshwater pearly-mussels (Bivalvia: Unionidae): a phylogenetic test of species and generic designations. Pages 145-158 In E.M. Harper, J. D. Taylor, and J. A. Crame (eds.)

Goldberg, S. R. 2000. Reproduction in the glossy snake, Arizona elegans (Serpentes: Colubridae) from California. Bulletin of the Southern California Academy of Science 99:105-109.

Johnson, R. R., R. L. Glinski, and S. W. Matteson. 2000. Zone-tailed Hawk (Buteo albonotatus). No. 529 IN A. Poole and F. Gill, editors, The birds of North America. The Birds of North America, Inc., Philadelphia, PA. 20pp.

Haxton, T. 2000. Road mortality of snapping turtles, Chelydra serpentina, in central Ontario during their nesting period. Canadian Field-Naturalist 114:106-110.

Porter, J. M. and L. A. Johnson. 2000. A phylogenetic classification of Polemoniaceae. Aliso 19(1): 55-91.

Walters, D. M., and B. J. Freeman. 2000. Distribution of Gambusia (Poeciliidae) in a southeastern river system and use of fin ray counts for species determination. Copeia 2000:555-559.

Kelley, J.R. 2001. American Woodcock Population Status 2000. US. Fish and Wildlife Service, Laurel, Maryland. 15 pp.

Huning, T. Gallion, M. (2000) Mexican Spotted Owl Inventory Form. Sandia Ranger District, Cibola National Forest, USFS. 4 p.

Paul, L.W. Schmidtke, P. (2000) Sensitive Plant Site Report, Population Site Report. Lincoln National Forest, Field Notes. Chrysothamnus nauseosus spp. texensis. Guadalupe RD, Lincoln NF, USFS. 3 p.

USDI Bureau of Land Management (BLM). 2000b. Land use planning. BLM Manual 1601. USDI Bur. Land Manage. Washington, DC. 24 pp.

Engstrom, M. and B. Lim. 2000. Checklist of the mammals of Guyana. Smithsonian Institute. Http://www.mnh.si.edu/biodiversity/bdg/guymammals.html

Pittenger, J. 2000. Database of point locations determined for museum records of fish used in The Fishes of New Mexico (1990). Original database without point locations developed by M. Hatch for NMDGF. Unpubl. database prep. for NM State Land Office.

Kauffman, D. 2000. Letter to Larry Paul regarding 2000 Mexican Spotted Owl Survey of Last Chance Canyon. USFS.

Unknown (2000) Northern Goshawk Annual Report, 200, Lincoln National Forest, Smokey Bear Ranger District. Lincoln Supervisor's Office, Lincoln National Forest, USFS. 14 p.

Dinerstein, E., D. Olson, J. Atchley, C. Loucks, S. Contreras-Balderas, R. Abell, E. Inigo, E. Enkerlin, C. Williams, and G. Castilleja. 2000. Ecoregion-based conservation in the Chihuahuan Desert, A biological assessment. World Wildlife Fund. 376 p.

Tonne, P. 2000. Status Report for Wright’s Justicia (Justicia wrightii; Acanthaceae). Prepared for NM Forestry and Resources Conservation Division, Santa Fe, NM and submitted to the U.S. Fish and Wildlife Service Region 2, Albuquerque Field Office.. 14 p.

Fish and Wildlife Service. 2000. Candidate and Listing Priority Assignment Form; Sceloporus arenicolus. 7 p.

Muldavin, E, P. Durkin, M. Bradley, M. Stuever, and P. Mehlhop. 2000. Handbook of wetland vegetation communities of New Mexico, Volume I Classification and Community Descriptions. 212 p.

Muldavin, E., Y. Chauvin, and G. Harper. 2000. The vegetation of White Sands Missile Range, New Mexico: Volume I: Handbook of vegetation communities. Natural Heritage New Mexico Publication No. 00-GTR-298. Natural Heritage New Mexico, University of New Me