Advanced Sciences, Inc. 1991. Final preliminary draft Environmental Impact Statement (affected environment and non-EMP related environmental and socioeconomic consequences sections) for the relocation of the Woodbridge Research Facility Electromagnetic Pu

Helmers, D.L. 1991. Habitat use by migrant shorebirds and invertebrate availability in a managed wetland complex. M.S. Thesis, Univ. of Missouri Columbia. 135pp.

Zink, R. K., et al. 1991a. Mitochondrial DNA variation and the taxonomic status of the large-billed savannah sparrow. Condor 93:1016-1019.

Reed, S. et al. 1991. Unpublished field notes from Astragalus kerrii/Echinocereus fendleri var kuenzleri survey on 22 May- 31 May 1991.

Gibbons, J. W., and R. D. Semlitsch. 1991. Guide to the reptiles and amphibians of the Savannah River Site. Univ. of Georgia Press, Athens. xii + 131 pp.

Tate, G.R. 1991. Population dynamics, reproductive ecology, and conservation of two insular populations of the short-eared owl in Massachusetts. University of Massachusetts, Boston, Massachusetts. M.S. thesis. 107 pp.

DeBruin, E. 1991. Survey for Echinocereus fendleri ver. kuenzleri on Fort Stanton Reservation. Unpubl. report by New Mexico Natural Heritage Program for BLM Roswell Resource Area. 12 p. + app.

Lincoln National Forest, Mayhill Ranger District. 1991. Echinocereus fendleri var kuenzleri monitoring report, March 1991.

Schwarz, H. Hurley, T. (1991) Northern Goshawk Inventory Form - 1991. Sandia Ranger District, Cibola National Forest, USFS. 5 p.

Black, C. and J. Black. 1991. Field survey to Gray Ranch - Indian Creek Canyon on 24 June 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #34 29 May, 1991.

Horton, J. and C. Persichetty. 1991. Field survey to Capitan Mts. - Pierce Canyon Arroyo at Forest Rd. 57, 23 May 1991.

Muldavin, E. 1991. Organ Mountains vegetation survey, 1991. New Mexico Natural Heritage Program

DeBruin, E. 1991. Field survey to Farmington Resource Area - Tucker Canyon plot #8 on 1 May 1991.

DeBruin, E. Sept 1991. Special plant site survey form for Oenthothera organensis.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #23 on 8 May 1991.

Perry, J. P. 1991. The Pines of Mexico and Central America. Timber Press.

DeBruin, E. 1991. Field survey to Farmington Resource Area - Aztec plot #7 on 25 April 1991.

Bull, E. L. and H. D. Cooper. 1991. Vaux's Swift nests in hollow trees. Western Birds 22:85-91.

Day, K. S., L. D. Flake, and W. L. Tucker. 1991. Characteristics of wild turkey nest sites in a mixed-grass prairie--oak-woodland mosaic in the northern great plains, South Dakota. Can. J. Zool. 69:2840-2845.

George, T.L., and L.C. McEwen. 1991. Relationships between bird density, vegetation characteristics, and grasshopper density in mixed-grass prairie of western North Dakota. Pages 465-475 in D.R. McCullough and R.H. Barrett, editors. Wildlife 2001: populat

Mahall, B.E. and R.M. Callaway. 1991. Root communication among desert shrubs. Ecology. 88:874-876.

Anderson, J. (1991) Map of Ox Canyon MSO Survey #2. Sandia Ranger District, Cibola National Forest, USFS. 1 p.

Newton, I., I. Wyllie, and A. Asher. 1991. Mortality causes in British Barn Owls Tyto alba with a discussion of aldrin-diedrin poisoning. Ibis 133: 162-169.

Russell, R. W., et al. 1991. A visual study of migrating owls at Cape May Point, New Jersey. Condor 93:55-61.

Thompson, D. B., J. H. Brown, and W. D. Spencer. 1991. Indirect facilitation of granivorous birds by desert rodents: experimental evidence from foraging patterns. Ecology 72(3):852-683.

Dunmire, W. 1991. Observation of threatened and endangered plants - survey report form of the Bureau of Land Management.

Hurley, T. Gorresen, M. (1991) Northern Goshawk Inventory Form - 1991 . Sandia Ranger District, Cibola National Forest, USFS.

Sivinski, R. and K. Lightfoot. 1991. NM Rare Plant Occurrence record data sheet of 10 July 1991 for Trifolium neurophyllum. EMNRD, Santa Fe.

Burgner, R. L. 1991. Life history of sockeye salmon (Oncorhynchus nerka). Pages 1-117 in C. Groot and L. Margolis, editors. Pacific salmon life histories. University of British Columbia Press, University of British Columbia, Vancouver. xv + 564 pp.

Forbes, S. H., and F. W. Allendorf. 1991b. Associations between mitochondrial and nuclear genotypes in cutthroat trout hybrid swarms. Evolution 45:1332-1349.

Johnson, N. K., and J. A. Marten. 1991. Evolutionary genetics of flycatchers. III. Variation in EMPIDONAX HAMMONDII (Aves: Typrannidae). Can. J. Zool. 69:232-238.

Murphy, E. C., A. M. Springer, and D. G. Roseneau. 1991. High annual variability in reproductive success of kittiwakes (Rissa tridactyla L.) at a colony in western Alaska. Journal of Animal Ecology 60:515-534.

Sakai, H. F., and B. R. Noon. 1991. Nest-site characteristics of Hammond's and Pacific-slope flycatchers in northwestern California. Condor 93:563-574.

Zink, R. K., and D. L. Dittman. 1991. Evolution of brown towhees: mitochondrial DNA evidence. Condor 93:98-105.

Avise, J. C., C. D. Ankney, and W. S. Nelson. 1991. Mitochondrial gene trees and the evolutionary relationship of mallard and black ducks. Evolution 44:1109-1119.

Burger, J., and R. T. Zappalorti. 1991. Nesting behavior of pine snakes (Pituophis m. melanoleucus) in the New Jersey Pine Barrens. J. Herpetol. 25:152-160.

Garrott, R. A. 1991b. Sex ratios and differential survival of feral horses. J. Anim. Ecol. 60:929-937.

Johnson, F. A., et al. 1991. Distribution, abundance, and habitat use by mottled ducks in Florida. J. Wildl. Manage. 55:476-482.

Nehlsen, W., J. E. Williams, and J. A. Lichatowich. 1991. Pacific salmon at the crossroads: stocks at risk from California, Oregon, Idaho, and Washington. Fisheries 16(2):4-21.

Rosen, P. C. 1991. Comparative ecology and life history of the racer (Coluber constrictor) in Michigan. Copeia 1991:897-909.

Walker, J. M., et al. 1991. Activity, temperature, age, size and reproduction in the parthenogenetic whiptail lizard Cnemidophorus dixoni in the Chinati Mountains in Trans-Pecos Texas. Am. Midl. Nat. 126:256-268.

Conant, R. and J. T. Collins. 1991. A field guide to reptiles and amphibians: eastern and central North America. Third edition. Houghton Mifflin Co., Boston, Massachusetts. 450 pp.

DeBruin, E. Sept 1991. Field survey to the Organ Mts, Autumn 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-Horn Canyon, stop #5 on 3 May 1991.

Thuma, D. 1991. Mexican chickadee and yellow-eyed junco survey in the Animas Mts. Survey of Indian Creek conducted 29 Dec 1991.

New Mexico Natural Heritage Program. 1991. Field map for 1991 Gilia formosa survey on USGS 7 1/2' topo map, Huerfanito Peak.

Madrid, B. Arvedson, C. (1991) 1991 Mexican Spotted Owl Daytime Follow-up Visit Form. Silver City Ranger District, Gila National Forest, USFS. 2 p.

Schemnitz, S.D. 1991. Summary of Gould's turkey observations Gray Ranch - Animas and San Luis Mts. Unpub table for NMSU Dept of Fishery and Wildlife Sciences. 4 pp.

Alldredge, A. W., R. D. Deblinger, and J. Peterson. 1991. Birth and fawn bed site selection by pronghorns in a sagebrush-steppe community. J. Wildl. Manage. 55:222-227.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #19 on 5 Aug 1991.

Burns, R. J., H. P. Tietjen, and G. E. Connolly. 1991. Secondary hazard of Livestock Protection Collars to skunks and eagles. J. Wildl. Manage. 55:701-704.

DeBruin, E. 1991- 1992. Personal field notebook with information that complements special plant site survey forms for New Mexico.

Einemann, L. 1991. A nesting report of a Wilson's Phalarope in Lancaster County. Nebraska Bird Review 59:59-61.

Birkhead, T. R. 1991. The ecology and behavior of black-billed and yellow-billed magpies. Academic Press. 259 pp.

DeBruin, E. 1991. Field survey to Farmington Resource Area-Adobe Downs Ranch, stop #15 on 10 May 1991.

Nowak, R. M. 1991. Walker's mammals of the world. Fifth edition. Vols. I and II. Johns Hopkins Univ. Press, Baltimore. 1629 pp.

Kraus, F., P.K. Ducey, P. Moler,. and M.M. Miyamoto. 1991. Two new triparental unisexual Ambystoma from Ohio and Michigan. Herpetologica. 47:429-439.

Mattson, D. J., et al. 1991b. Bear feeding activity at alpine insect aggregation sites in the Yellowstone ecosystem. Canadian J. Zoolgoy 69:2430-2435.

Ridgway, M. S., J. A. MacLean, and J. C. MacLeod. 1991a. Nest-site fidelity in a centrarchid fish, the smallmouth bass (Micropterus dolomieui). Canadian Journal of Zoology 69:3103-3105.