An analysis of silver-stained karyotypes of four North American cyprinid species in the subgenus Luxilus /

Endangered species.
Published: (1969)

Endangered species.
Published: (1968)

Endangered species.
Published: (1969)

A phylogenetic study of four species of Lasiurus (Chiroptera: Vespertillionidae) using the ZFX/ZFY loci /
by: Robertson, Stirling Joseph
Published: (1996)

The systematics of the Bathyraja and Rhinoraja (Rajidae) species of the Bering Sea and adjacent areas in the North Pacific Ocean /
by: Craig, Johanna Capps
Published: (1993)

Effects of environmental salinity and dietary protein levels on digestibility in four species of penaeid shrimp /
by: Coelho, Silvio Romero de C., 1956-
Published: (1984)

Phylogeography of five species of the stygobitic shrimp genus Typhlatya, as determined from the sequence analysis of three mitochondrial genes /
by: Belcher, Rebecca Lane
Published: (2004)

Anodonta grandis as a potential new species for freshwater aquaculture /
by: Richardson, Frank Harold, 1958-
Published: (1995)

Demographic analysis of the captive Asian and African elephants in North America /
by: Fraser, Susan Overman, 1954-
Published: (1983)

Macrogeographic variation of nuclear microsatellite loci in an endangered species, Eumetopiias jubatus /
by: Trujillo, Robert Greg
Published: (2001)

Diel, seasonal, and species-specific trends in vocalizations of dolphins in the Gulf of Mexico /
by: Stienessen, Sarah C.
Published: (1998)

Comparative ecology and reproductive biology of three species of Amazona parrots in northeastern Mexico /
by: Enkerlin-Hoeflich, Ernesto C. (Ernesto Christian), 1958-
Published: (1995)

Conservation of endangered species of fish and wildlife.
Published: (1966)

A review of the large species of Artibeus (Chiroptera: Phyllostomatidae) from western South America.
by: Patten, Donald Richard
Published: (1971)

Sequence analysis of a zinc-finger gene for the examination of paternal lineages and introgressive hybridization in North American deer /
by: Cathey, James Cleveland, 1968-
Published: (1993)

Relationships among fish populations, species assemblages, and environmental factors on a heterogeneous floodplain landscape /
by: Tarim, Soner, 1966-
Published: (2002)

Seasonality and midscale spatial effects on Cichla ecology and fish species diversity in a neotropical floodplain river /
by: Jepsen, David Brice
Published: (1995)

A comparison of bird use and species diversity of created and natural salt marshes in the Galveston Bay complex, Texas /
by: Melvin, Stefani Lynn
Published: (1996)

Simulation of population dynamics of the parasite Haematoloechus coloradensis Cort 1915 (Digenea: Haematolochidae) in its 3 host species : effects of environmental temperature and precipitation /
by: Marin, Sandra Lorena, 1967-
Published: (1995)

Cold tolerance of red drum (Sciaenops ocellatus) and thermal-refuge technology to protect this species from cold-kill in aquaculture ponds /
by: Dorsett, Paul Wesley, 1970-
Published: (1994)

Species composition, distribution and abundance of macrozooplankton in the intake and discharge areas after construction and operation of the Cedar Bayou electric power station.
by: Jones, Timothy Lee
Published: (1975)

A study of food habits of two species of silverside, Menidia beryllina (Cope) and Membras martinica (Valenciennes), in upper Galveston Bay, Texas.
by: Dixon, Claude Allen
Published: (1974)

Variation in the chromosomes of five species of pocket gophers in the genus Geomys as detected by differential staining, and the phylogenetic implications /
by: Smolen, Michael John, 1949-
Published: (1992)

Species composition, distribution, and seasonal abundance of macro-zooplankton in intake and discharge areas before and during early operation of the Cedar Bayou generating station.
by: Kalke, Richard D.
Published: (1972)

The development of the rifle and its relation to wild game in North America.
by: Hubbard, Douglass H.
Published: (1942)

Genetic variation of pronghorn (Antilocapra americana) populations in North America /
by: Lou, Yigong, 1965-
Published: (1998)

Species composition, distribution, and abundance of macrobenthic organisms in the intake and discharge area of a steam-electric generating station before and during initial start-up.
by: Williams, Grady Edward
Published: (1972)

Evaluating the accuracy of activity budget analysis /
by: Klarquist, John Erland
Published: (1987)

Multiscale analysis of cetacean distribution in the Gulf of Mexico /
by: Ortega Ortiz, Joel Gabriel, 1972-
Published: (2002)

Multiscale analysis of cetacean distribution in the Gulf of Mexico /
by: Ortega Ortiz, Joel Gabriel, 1972-
Published: (2002)

Mitochondrial DNA and allozyme analysis of pronghorn populations in North America /
by: Lee, Thomas Emmett, Jr., 1959-
Published: (1992)

Species visitation at free-choice quail feeders in west Texas /
by: Henson, Kelly Diane, 1973-
Published: (2006)

Chromosomal, genic, and morphological variation in the Oryzomys melanotis species group.
by: Engstrom, Mark D.
Published: (1984)

Systematics of the southern races of two species of kangaroo rats (Dipodomys compactus and D. ordi) /
by: Baumgardner, George D.
Published: (1979)

Seed bank analysis of a Brazos River slough /
by: McKnight, Keith
Published: (1988)

Population ecology of rodents in a mixed coniferous forest ecosystem, North Rim, Arizona.
by: Ruffner, George Andrew
Published: (1975)