Sharps, J. C. and D. W. Uresk. 1990. Ecological review of black-tailed prairie dogs and associated species in western South Dakota. Great Basin Naturalist 50:339-45.

Dunmire, W.W. 1990. Hedeoma todsenii inventory of Sacramento Mts, Caballo Resource Area, BLM. Unpublished report for BLM by TNC. 11 p + maps + photos.

Scarbrough, L. 1990. Letter to Bob Sivinski regarding locations for three species, ^Coryphantha sneedii, ^Oenothera organensis, and ^Peniocereus greggii. 3 pages included with map.

Medin, D.E., and W.P. Clary. 1990. Bird and small mammal populations in a grazed and ungrazed riparian habitat in Idaho. U.S.D.A. Forest Service, Intermountain Research Station, Research Paper INT-425.

Brown, B. T. 1990. Nesting common mergansers in Chihuahua, Mexico. Southwest Nat. 35:88-89.

Firchow, K. M., M. R. Vaughan, and W. R. Mytton. 1990. Comparison of aerial survey techniques for pronghorns. Wildl. Soc. Bull. 18:18-23.

Houston, D. B., et al. 1990. Elk in Olympic National Park: will they persist over time? Natural Areas Journal 10:6-11.

Krupa, J.J. 1990. Bufo cognatus. Catalogue of American Amphibians and Reptiles. 457:1-2.

Purcell, K. L. 1990. Mature upper mixed-coniferous forest-montana chaparral. Journal of Field Ornithology (Supplement) 61:60-61.

Waples, R. S. 1990a. Conservation genetics of Pacific salmon. II. Effective population size and the rate of loss of genetic variability. Journal of Heredity 81:267-276.

Sauer, J. R. 1990. Route-regression analysis of scissor-tailed flycatcher population trends. U.S. Fish and Wildlife Service Biological Report 90:160-163.

Bucyanayandi, J. D., and J. M. Bergeron. 1990. Effects of food quality on feeding patterns of meadow voles along a community gradient. Journal of Mammalogy 71:390-6.

Easter-Pilcher, A. 1990. Cache size as an index to beaver colony size in northwestern Montana. Wildlife Society Bulletin 18:110-113.

Hershler, R. and W.L. Pratt. 1990. A new PYRGULOPSIS (Gastropoda:Hydrobiidae) from southeastern California, with a modelfor historical development of the Death Valley hydrographic system. Proc. Biol. Soc. Wash. 103(2): pp. 279-299.

Marti, C. D. 1990. Sex and age dimorphism in the barn owl and a test of mate choice. Auk 107:246-54.

Reimchen, T. E. 1990. Introduction and dispersal of the Pacific treefrog, Hyla regilla, on the Queen Charlotte Islands, British Columbia. Canadian Field Naturalist 105:288-290.

Collins, P. W., and S. B. George. 1990. Systematics and taxonomy of island and mainland populations of western harvest mice (REITHRODONTOMYS MEGALOTIS) in southern California. Nat. Hist. Mus. Los Angeles County, Contr. in Sci. (420):1-26.

White, G. C., and R. A. Garrott. 1990. Analysis of wildlife radio-tracking data. Academic Press, San Diego, CA.

Debruin, E. 1990. Field notes on Mammilaria wrightii var. Wilcoxii, Gray Ranch - Black Bill Slope Macrosite. Natural Heritage New Mexico.

Brooks, B. L. and S. A. Temple. 1990a. Habitat availability and suitability for loggerhead shrikes in the Upper Midwest. Am. Midl. Nat. 123: 75-83.

Dick-Peddie, Scott. 1990. Biological assessment for threatened and endangered vertebrates on the eight target sites to be used by NLOS. September 1990. 5 pp.

Naumann, T. 1990 Status report for Astragalus ripleyi. Co Natural Areas Program, Denver, Co. p. 109

Frederick, P. C., et al. 1990. Relative abundance and habitat preferences of least bitterns (IXOBRYCHUS EXILIS) in the Everglades. Florida Field Nat. 18:1-20.

Morris, R. D., and J. Siderius. 1990. A treatment for prevention of hatching in field-incubated ring-billed gull eggs. J. Wildl. Manage. 54:124-130.

Mehlhop, P. 1990. Field survey to Gray Ranch - San Luis Pass - Beargrass 16 Aug. 1990.

Ryberg. 1990. Pediomelum pentaphyllum. Memoirs of the New York Botanical Garden. 61:82-84.

Willey, D. W. 1990. Nesting success of San Clemente sage sparrows. Southwestern Naturalist 35:28-31.

Sealy, S. G., editor. 1990. Auks at sea. Western Foundation of Vertebrate Zoology, Studies in Avian Biology No. 14. vi + 180 pp.

Daly, L. Parker, M. (1990) 1990 Mexican Spotted Owl Inventory Form. Sandia Ranger District, Cibola National Forest, USFS. 104 p.

Lightfoot & Muldavin Associates. 1990. Biological assessment, camera pads and pole sites, Kinetic Energy Missile (KEM) Program, White Sands Missile Range, New Mexico. 16 March 1990. 14 pp. of text + 1 very large topo map.

Johnston, M.C. 1990. The vascular plants of Texas: A list, updating the manual of the vascular plants of Texas. 2nd edition. Privately published, Austin, Texas. 107 pp.

New Mexico Department of Game and Fish. 1990. Checklist of the Amphibians of New Mexico.

Conway, C. J. 1990. Seasonal changes in movements and habitat use by three sympatric species of rails. M.Sc.thesis, University of Wyoming, Laramie.

Sullivan, R.M. and Richard A. Smartt. 1990. Survey of the Colorado chipmunk (Eutamias quadrivittatus), Oscura Mountain land snail (Oreohelix socorroensis), and other flora and fauna in the southern Oscura, Mockingbird, Fairview, and Sheep Mountains, White

Mehlhop, P. 1990. Field survey to Gray Ranch - Mailbox Tank. 16 Aug, 1990.

Burger, J., and M. Gochfeld. 1990. Nest site selection in least terns (Sterna antillarum) in New Jersey and New York. Colonial Waterbirds 13:31-40.

Grismer, L. L. 1990. Coleonyx fasciatus. Cat. Am. Amph. Rept. 463.1-463.2.

Kurta, A., and R. H. Baker. 1990. Eptesicus fuscus. Am. Soc. Mamm., Mammalian Species 356:1-10.

Mullican, T. R., and J. T. Baccus. 1990. Horizontal and vertical movements of the white-ankled mouse (PEROMYSCUS PECTORALIS) in central Texas. J. Mamm. 71:378-381.

Rollfinke, B.F., R.H. Yahner, and J.S. Wakeley. 1990. Effects of forest irrigation on long-term trends in breeding-bird communities. Wilson Bulletin 102(2):264-278.

Shields, G. F. 1990. Analysis of mitochondrial DNA of Pacific black brant (Branta bernicla nigricans). Auk 107:620-623.

Dunmire, W. 1990. Plant collection records 1990. 6 p.

Schulke (1990) Collected 1990 Mexican Spotted Owl Daytime Follow-up Visit Forms. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 179 p.

Reading, R. 1990. Prairie dogs - a link in the chain. In Bureau of Land Management, Working toward recovery. Bureau of Land Mangement, Montana/Dakotas.

Buchanan, J. B., R. W. Lundquist, and K. B. Aubry. 1990. Winter populations of Douglas' squirrels in different-aged Douglas-fir forests. J. Wildl. Manage. 54:577-581.

Fishman, M. S., and M. Scheibel. 1990. Osprey productivity on Long Island 1978-1987: a decade of stabilization. Kingbird 40:2-9.

Iverson, J. B. 1990. Nesting and parental care in the mud turtle, Kinosternon flavescens. Can. J. Zool. 68:230-233.

Kuyt, E. 1990. Whooping crane numbers in 1989 recover from 1988 setback. Alberta Naturalist 20:49-52.

Rawinski, T. J., and B. P. Lapin. 1990. Some effects of beaver flooding on rare swamp birch (Betula pumila L.) vegetation in Connecticut: 1984-1987. Pages 244-247 in: Ecosystem management: are species and significant habitats. New York State Museum Bullet

Waples, R. S. 1990b. Conservation genetics of Pacific salmon. III. Estimating effective population size. Journal of Heredity 81:277-289.

Blokpoel, H., and R. M. G. Hamilton. 1990. Effects of applying white mineral oil to chicken and gull eggs. Wildl. Soc. Bull. 17:435-441.

Ely, D. C. 1990. A pair of pileated woodpeckers in the Wichita Mountains Wildlife Refuge, Comanche County, Oklahoma. Bull. Okla. Ornithol. Soc. 23:24-5.

Hickey, M. B. C., and M. B. Fenton. 1990. Foraging by red bats (LASIURUS BOREALIS): do intraspecific chases mean territoriality? Can. J. Zool. 68:2477-2482.

Meng, A., R. E. Carter, and D. T. Parkin. 1990. The variability of DNA fingerprints in three species of swan. Heredity 64:73-80.

Riddle, B. R., and R. L. Honeycut. 1990. Historical biogeography in North American arid regions: an approach using mitochondrial-DNA phylogeny in grasshopper mice (genus ONYCHOMYS). Evolution 44:1-15.

Stall, D. T. 1990. Microtus ochrogaster. Am. Soc. Mamm., Mammalian Species 355:1-9.

Droege, S., and J.R. Sauer. 1990. North American Breeding Bird Survey, annual summary, 1989. U.S. Fish and Wildlife Service, Biological Report 90(8). 22 pp.

Zeiner, D. C., W. F. Laudenslayer Jr., and K. E. Mayer (editors). 1990a. California's Wildlife. Vol. 2. Birds. California Statewide Wildlife Habitat Relat. System, California. Resources Agency, Dept. Fish and Game, Sacramento, California.

DeBruin, E. 1990. Field survey to Organ Mts, Ice Canyon, For Oenothera organensis and Phanerophlebia auriculata. Sept 4, 1990.

Brooks, B. L., and S. A. Temple. 1990b. Dynamics of a loggerhead shrike population in Minnesota. Wilson Bull. 102:441-450.