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Now showing items 11-20 of 22
A bioecological study of the black-capped vireo (vireo atricapillus) /
(The University of Oklahoma., 1958)
A geography of extinction: Patterns in the contraction of geographic ranges.
(1998)
I examined the contraction of geographic ranges in 245 species. Remnant portions of the geographic range tended to persist in the periphery of the species' historical range. Larger patches of the geographic ranges persisted ...
Iguanid mating systems: Ecological causes and sexual selection consequences.
(1997)
Ctenosaura similis females exhibited extremely overlapping home ranges near burrow sites; D. dorsalis females exhibited moderate levels of home range overlap beneath large shrubs offering cool temperatures. Males of both ...
Structure and assembly of avian communities associated with black-tailed prairie dog ecosystems.
(2007)
It is clear that even in their current remnant state, black-tailed prairie dogs continue to play a significant role in the assembly of ecological communities across the Great Plains. Conservation of prairie dogs goes well ...
Genetic studies in a demographic framework: Annual variation, inbreeding history, and effects of isolation in a rare group of amphibians.
(2004)
Rana sevosa had significantly lower genetic variation than non-isolated populations of its sister taxa. In fact, the isolated population had an observed heterozygosity that was 72% and allelic richness that was 61% of the ...
Movement by three stream dwelling cyprinids (Notropis boops, Campostoma anomalum, and Cyprinella venusta).
(1999)
The effects of riffles as barriers to movement of stream fish were investigated in large, outdoor artificial streams. Rates of movement of three species of minnows (Cyprinidae) (Campostoma anomalum, Cyprinella venusta and ...
The ontogeny of diet in the Mexican spiny-tailed iguana, Ctenosaura pectinata: Physiological mechanisms and ecological consequences.
(1999)
The foraging ecology and digestive physiology of a natural size-structured population of iguanid lizards (Ctenosaura pectinata) was studied through two wet and two dry seasons in a tropical deciduous thorn forest in central ...
Interactions between fishes and zooplankton, with emphasis on an exotic cladoceran, Daphnia lumholtzi, in Lake Texoma, Oklahoma-Texas.
(1997)
Menidia beryllina do utilize the invading cladoceran, Daphnia lumholtzi, as an additional food source. The increase in D. lumholtzi abundance during the middle of the summer, a period when native zooplankton are scarce, ...
Landscape structure in a managed forest mosaic of the Southern Appalachian Mountains and its influence on songbirds and small mammals.
(1998)
Forests in the Appalachian Mountains have been severely affected by logging in the past and little old-growth is left. The remaining forests form a heterogeneous mosaic of different forest successions. A concern for ...
Sibling rivalry for milk in northern grasshopper mice (Onychomys leucogaster).
(1999)
This research explores non-aggressive sibling rivalry over milk in a small mammal, the northern grasshopper mouse (Onychomys leucogaster). Food shortages result in sibling rivalry. Pups from the largest litters grew at ...