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Lovich, J. E., and R. Daniels. 2000. Environmental characteristics of desert tortoise (GOPHERUS AGASSIZII) burrow locations in an altered industrial landscape. Chelonian Conservation and Biology 3:714-721.

Sanders, T. A. and R. L. Jarvis. 2000. Do band-tailed pigeons seek a calcium supplement at mineral sites? Condor 102:855-863.

Mehlhop, P. 2000. Status of the Southwestern Willow Flycatcher (Empidonax trailii extimus) on Coyote Creek, Mora County, New Mexico. Report to the New Mexico Department of Game and Fish, Santa Fe, NM.

Anderson, D.L. 2000. Specimen label information from White Sands Missile Range herbarium. 4 p.

Stoleson, S.H and D. M. Finch. 2000. Southwestern willow flycatchers in the Cliff-Gila Valley, New Mexico: Landscape-level effects on density, reproduction, and cowbird parasitism. Draft summary report for the 2000 field season. . 26 p.

U.S. Fish and Wildlife Service (USFWS). 2000. Proposal to reclassify and remove the Gray Wolf from the list of Endangered and Threatened wildlife in portions of the conterminous United States; proposal to establish three special regulations for threatened

Sivinski, R. 2000. Endangered Plant Study. Sante Fe, NM: New Mexico Forestry Division; Performance Report E-9-14. 71p.

Four Corners Band-tailed Pigeon Subcommittee. 2000. Pacific Flyway management plan for the Four Corners population of band-tailed pigeons. Draft. Western Migratory Upland Game Bird Technical Committee. C/o U.S. Fish and Wildlife Service, Portland, OR.

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

West, S. 2000. Letter dated 2000-01-27 to C. Rustay with regard to Gray Vireos in the Guadalupe Mts. 2 p.

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

Ludwig, J., E. Muldavin, and K.R. Blanche. 2000. Vegetation change and surface erosion in desert grasslands of Otero Mesa, southern New Mexico: 1982 to 1995. Am. Midl. Nat. 144: 273-285.

Muldavin, E., E. Milford, and M. Stuever. 2000. New Mexico Wetlands/ Riparian Assessment Database and GIS ArcView GIS project, Access Database & Report December 2000 CD Vol. 1 and 2.

Burns, J. M. 2000. Pyrgus communis and Pyrgus albescens (Hesperiidae: Pyrginae) are separate but transcontinental species with variable but diagnostic values. Journal of the Lepidopterists Society 54: 52-71

Phelps, A., C. B. Renaud, and F. Chapleau. 2000. First record of a freshwater drum, Aplodinotus grunniens, in the Rideau River, Ottawa, Ontario. Canadian Field-Naturalist 114(1):121-125.

Bailey, J.A and S.O. Williams III. 2000. Status of the lesser prairie-chicken in New Mexico, 1999. The Prairie Naturalist. 32(3):157-168.

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Broughton, R. E., and J. R. Gold. 2000. Phylogenetic relationships in the North American cyprinid genus Cyprinella (Actinopterygii: Cyprinidae) based on sequences of the mitochondrial ND2 and ND4L genes. Copeia 2000:1-10.

Jolley, T. W., R. L. Honeycutt, and R. D. Bradley. 2000. Phylogenetic relationships of pocket gophers (genus Geomys) based on the mitochondrial 12s rRNA gene. Journal of Mammalogy 81:1025-1034.

Minckley, W. L., and B. D. DeMarais. 2000. Taxonomy of chubs (Teleostei, Cyprinidae, genus Gila) in the American Southwest with comments on conservation. Copeia 2000:251-256.

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Sattler, G. D., and M. J. Braun. 2000. Morphometric variation as an indicator of genetic interactions between Black-capped and Carolina Chickadees at a contact zone in the Appalachian Mountains. Auk 117:427-444.

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Berry, A. Mackley, L. (2000) Northern Goshawk Annual Report, Sacramento Ranger District, Lincoln National Forest. Lincoln Supervisor's Office, Lincoln National Forest, USFS. 7 p.

Worthington, R. 2000. Inventory of the Flora of the New Mexico Portion of the Guadalupe Mountains, Otero and Eddy Counties, New Mexico, Working Second Draft. USFS.

Williams, S.O., III. 2000. Checklist of the native birds of New Mexico. 30 June 1999. 18 p.

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

University of New Mexico Herbarium. 2000. Excel spreadsheet containing herbarium specimen records for LE, LT, C and SCF species.

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Pip, E. 2000. The decline of freshwater molluscs in southern Manitoba. Canadian Field Naturalist 114(4):555-560.

Carraway, L. N. and R. M. Timm. 2000. Revision of the extant taxa of the genus Notiosorex (Mammalia: Insectivora: Soricidae). Proceedings of the Biological Society of Washington 113:302-318.

Baumann, R.W. and A.L. Huillet. 2000. Odonata of Moapa Warm Springs, Clark County, Nevada. Argia, 12(4): 2-3.

Busch, J. D, M. P. Miller, E. H. Paxton, M. K. Sogge, and P. Keim. 2000. Genetic variation in the endangered southwestern willow flycatcher. The Auk. 117(3):586-595.

Jones, J., P. R. Perazzi, E. H. Carruthers, and R. J. Robertson. 2000. Sociality and foraging behavior of the Cerulean Warbler in Venezuelan shade-coffee plantations. Condor 102:958-962.

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Mueller, G., P. C. Marsh, G. Knowles, and T. Wolters. 2000. Distribution, movements, and habitat use of razorback suckers (Xyrauchen texanus) in a lower Colorado River reservoir, Arizona-Nevada. Western North American Naturalist 60:180-187.

Schroeder, M. A., D. W. Hays, M. F. Livingston, L. E. Stream, J. E. Jacobson, and D. J. Pierce. 2000. Changes in the distribution and abundance of sage grouse in Washington. Northwestern Naturalist. 81:104-112.

Hornocker Wildlife Institute. 2000. New Mexico cougar project: Cougars of the San Andres Mountains. www.uidaho.edu/rsrch/hwi/projects/Nmcougar.htm. .

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Cushing, P.E. 2000. E-mail of 2-22-2000 containing an odonate specimen record in the Denver Museum of Natural History.

Sauer, J. R., J. E. Hines, I. Thomas, J. Fallon, and G. Gough. 2000. The North American Breeding Bird Survey, Results and Analysis 1966 - 1999. Version 98.1, USGS Patuxent Wildlife Research Center, Laurel, MD.

Rustay, C. 2000. Datasheets for Willow Flycatcher surveys on BLM Rio Puerco Resource Area. Hawks Aloft, Inc.

United States Fish and Wildlife Service. 2000. Endangered and threatened wildlife and plants; 12-month finding for a petition to list the black-tailed prairie dog as threatened. Federal Register. 65(24):5476-5488.

Huisinga, K., P. Hogan, K. Wright, H. Hamilton, S. Crow. 2000. Special Status Plants of the Flagstaff Area national monuments: Final Report. Submitted to National Resource Coordinator, National Park service Headquarters, Flagstaff, AZ.

U.S. Fish and Wildlife Service (USFWS). 2000. Establishment of a nonessential experimental population of Black-footed Ferrets in north-central South Dakota. Federal Register 65:60879-60889.

Lang, B.K. 2000. Status and Distribution of Terrestrial Snails in Southern New Mexico. Completion Report to U.S. Fish and Wildlife Service, Section 6 E-36-5. 204 p.

Abbott, John C. 2000. Data sheet completed for the South Central Division Aquatic Experts Workshop, Nov. 8-10, 2000. Hosted by The Nature Conservancy of Texas, San Antonio.

Paxton, E. H. 2000. Molecular genetic structuring and demographic history of the willow flycatcher (Empidonax traillii). Master's Thesis. Northern Arizona University, Flagstaff. 42 pp.