Broschart, M. R., C. A. Johnston, and R. J. Naiman. 1989. Predicting beaver colony density in boreal landscapes. Journal of Wildlife Management 53:929-934.

Ganey, J. L., and R. P. Balda. 1989a. Distribution and habitat use of Mexican spotted owls in Arizona. Condor 91:355-361.

Kinkel, L. K. 1989. Lasting effects of wing tags on ring-billed gulls. Auk 106:619-624.

Nichols, A.O. 1989. How to make biological surveys go further with generalized linear models. Biological Conservation 50(1989):51-75.

Slough, B. G. 1989. Movements and habitat use by transplanted marten in the Yukon Territory. J. Wildl. Manage. 53:991-997.

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Stiles, F. G. and A. F. Skutch. 1989. A guide to the birds of Costa Rica. Cornell University Press, Ithaca, New York, USA. 511 pp.

Jahrsdoerfer, S and S. Rutman. 1989. Final rule to determine Argemone pleiacantha ssp pinnatisecta an endangered species. Federal Register. Vol. 54, No. 163:35302-35305.

Burns, J. A., D. L. Flath and T. W. Clark. 1989. On the structure and function of white-tailed prairie dog burrows. Great Basin Nat. 49:517-24.

England, A.S., and W.F. Laudenslayer, Jr. 1989. Distribution and seasonal movements of Bendire's thrasher in California. Western Birds 20:97-123.

Joglar, R. L. 1989. Phylogenetic relationships of the West Indian frogs of the genus Eleutherodactylus: a morphological analysis. Pages 371-408 in C. A. Woods, ed. Biogeography of the West Indies. Sandhill Crane Press, Gainesville, Florida.

Melvin, S.M., D.G. Smith, D.W. Holt, and G.R. Tate. 1989. Small owls. Pages 88-96 in B.G. Pendleton, editor. Proceedings of the Northeast raptor management symposium and workshop. National Wildlife Federation, Washington, D.C. 353 pp.

Plante, Y., P. T. Boag, and B. N. White. 1989. Macrogeographic variation in mitochondrial DNA of meadow voles (Microtus pennsylvanicus). Can. J. Zool. 67:158-167.

Ellis, S. 1989. Preserve design for the nokomis fritillary butterfly colonies, Unaweep Canyon, Mesa County, Colorado. Unpublished report submitted to the Nature Conservancy, Colorado Field Office, and U.S. Bureau of Land Managment, Grand Junction, Colorad

Scharf, W. 1989. Black tern nesting phenology and habitat in marshes of the St. Mary's River, Michigan. unpublished report for Michigan DNR, Wildlife Division, Natural Heritage Fund.

Spellenberg, R., and P. Knight. 1989. A new species of Erigeron (Asteraceae: Astereae) from central New Mexico. Madrono 36(2): 115-121.

Zembal, R., B. M. Massey, and J. M. Fancher. 1989. Movements and activity patterns of the light-footed clapper rail. Journal of Wildlife Management 53:39-42.

Franzreb, K. E. 1989. Ecology and conservation of the endangered least Bell's vireo. U.S. Fish and Wildlife Service, Biol. Rep. 89(1). 17 pp.

Mills, E. D. 1989. Nearctic bird migration and wintering ecology in Belize, Central America. Univeristy of Alabama, Tuscaloosa, Alabama. Ph.D. dissertation. Unpublished.

Ridgely, R. S. and G. Tudor. 1989. The birds of South America. Volume 1. University of Texas Press, Austin, USA. 516 pp.

Falzone, K. 1989. Conversation record with Hillary Herman, subject: new location of night blooming Cereus (^Cereus greggii) - state endangered, federal candidate sp.

Marti, C. D. 1989a. Common barn-owl TYTO ALBA. Biographies of North American birds, Am. Ornithol. Union. Draft copy of proposed publication. 12 pp.

Regional Environmental Consultants (RECON). 1989. Draft comprehensive species management plan for the Least Bell's Vireo. San Diego Association of Governments, San Diego, CA.

Brown, J.R. and S. Archer. 1989. Woody plant invasion of grasslands: establishment of honey mesquite (Prosopis glandulosa var. glandulosa) on sites differing in herbaceous biomass and grazing history. Oecologia. 80:19-26.

Cross, D.H., K.L. Flemming. 1989. Control of Phragmites or Common Reed. Fish and Wildl, Leafl. 13.4.12. 5 pp.

Hutto, R.L. 1989. The effect of habitat alteration on migratory land birds in a west Mexican tropical deciduous forest: a conservation perspective. Conservation Biology 3(2):138-148.

Marsh, P. C., and W. L. Minckley. 1989. Observations on recruitment and ecology of razorback sucker: lower Colorado River, Arizona-California-Nevada. Great Basin Naturalist 49:71-78.

Svendsen, G. E. 1989. Pair formation, duration of pair-bonds, and mate replacement in a population of beavers (Castor canadensis). Canadian Journal of Zoology 67:336-340.

Zucker, N. 1989. Dorsal darkening and territoriality in a wild population of the tree lizard, Urosaurus ornatus. Journal of Herpetology 23:389-398.

Knight, P. 1989. Element occurrence records for Hedeoma apiculatum.

Blokpoel, H., and J. Struger. 1988. Cherry depredation by ring-billed gulls, LARUS DELAWARENSIS, in the Niagara Peninsula, Ontario. Canadian Field-Nat. 102:430-433.

Gennaro, A. L. 1988a. Breeding biology of an urban population of Mississippi kites in New Mexico. Pages 188-190 in Glinski et al., eds. Proc. Southwest raptor management symposium and workshop. Nat. Wildl. Fed. Sci. and Tech. Ser. No. 11.

MacMahon, J.A., M.G. Barbour, and W.D. Billings. 1988. North American terrestrial vegetation.

Naiman, R. J., C. A. Johnston, and J. C. Kelley. 1988. Alteration of North American streams by beaver. BioScience 38:753-762.

Schackell, N. L., R. E. Lemon, and D. Roff. 1988. Song similarity between neighboring American redstarts (Setophaga ruticilla): a statistical analysis. The Auk 105:609-15.

Vander Haegen, W. M., W. E. Dodge, and M. W. Sayre. 1988. Factors affecting productivity in a northern wild turkey population. J. Wildl. Manage. 52:127-133.

Burger, J., and M. Gochfeld. 1988. Nest-ste selection by roseate terns in two tropical colonies on Culebra, Puerto Rico. Condor 90:843-851.

U.S. Fish and Wildlife Service. 1988. Determination of endangered status for two long-nosed bats. Federal Register. 53(190):38456-38460..

Hygnstrom, S. E., and S. R. Craven. 1988. Electric fences and commercial repellents for reducing deer damage in cornfields. Wildl. Soc. Bull. 16:291-296.

Krementz, D. G., et al. 1988. The effects of hunting on survival rates of American black ducks. J. Wildl. Manage. 52:214-226.

Santana C., E. 1988. Breeding biology and diet of red-tailed hawks in Puerto Rico. Biotropica 20:151-160.

Taylor, D., and L. Katahira. 1988. Radio telemetry as an aid in eradicating remnant feral goats. Wildl. Soc. Bull. 16:297-299.

Arnold, C. R., et al., eds. 1988. Red drum aquaculture, proceedings of a symposium on the culture of red drum and other warm water fishes. Contrib. in Marine Sci., Suppl. to Vol. 30, Marine Sci. Inst., Univ. Texas at Austin, Port Aransas, Texas. 197 pp.

Atwood, J. L. 1988. Speciation and geographic variation in black-tailed gnatcatchers. Ornithol. Monogr. No. 42. v + 74 pp.

Raat, A. J. P. 1988. Synopsis of biological data on the northern pike Esox lucius Linnaeus, 1758. FAO Fisheries Synopsis No. 30 Rev. 2. Food and Agriculture Organization of the United Nations, Rome, Italy. 178 pp.

Zeveloff, S. I. 1988. Mammals of the intermountain west. University of Utah Press, Salt Lake City, Utah.

Forbes, M. R. L., and C. D. Ankney. 1988a. Nest attendance by adult pied-billed grebes, PODILYMBUS PODICEPS (L.). Canadian Journal of Zoology 66:2019-23.

Knapton, R. W. 1988. Nesting success in higher for polygynously mated females than for monogamously mated females in the eastern meadowlark. Auk 105:325-329.

O'Kane, S.L. 1988. Colorado's rare flora. Great Basin Naturalist 48(4): 434-484.

Scott, J. M., C. B. Kepler, C. van Riper, and S. I. Fefer. 1988. Conservation of Hawaii's vanishing avifauna. BioScience 38:238-253. Scott, J. M., et al. 1988. Conservation of Hawaii's vanishing avifauna. BioScience 38:238-253.

Warkentin, I. G., and P. C. James. 1988. Nest-site selection by urban merlins. Condor 90:734-738.

VanEimeren, P. A. 1988. Comparative food habits of Gila trout and speckled dace in a southwestern headwater stream. New Mexico State University, Las Cruces, New Mexico. M.S. Thesis. 59 pp.

New Mex. Dept. Game & Fish. 1988. Gila spring snail, handbook of species endangered in New Mexico. B-298: 1-2.

Powell, A.M. 1988. Trees and shrubs of Trans-Pecos Texas, including Big Bend and Guadalupe Mountains National Parks. Big Bend Natural History Association, Big Bend National Park, Texas. 536 pp.

New Mexico Department of Game and Fish. 1988. A final report on the investigations into the distribution and habitat requirements of the Jemez Mountains salamander (Plethodon neomexicanus). Santa Fe, NM. New Mexico Department of Game and Fish: Endangered

Brown, B. T. 1988. Breeding ecology of a willow flycatcher population in Grand Canyon, Arizona. Western Birds 19:25-33.

Epstein, M.B., and R.L. Joyner. 1988. Waterbird use of brackish wetlands managed for waterfowl. Proc. Annu. Conf. Southeast Assoc. Fish and Wildl. Agencies 42:476-490.

Bureau of Land Management, La Cruces. 1988. Inventory of Sacramento Prickle-poppy. . 3 p.

Peterson, D. L. 1988. Nesting and habitat parameters for selected raptors in the desert of northern Utah. MS Thesis, Utah State Univ., Logan. 110 pp.

Hayes, M. P., and M. R. Jennings. 1988. Habitat correlates of distribution of the California red-legged frog (Rana aurora) and the foothill yellow-legged frog (Rana boylii): implications for management. Pages 144-158 in Szaro, R.C., et al., technical coor