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Evolutionary and environmental effects on thermoregulation among complex lizard communities.
(2002)
A community of ten sympatric lizard species was studied in a mountain canyon in southern Arizona to determine the effect of phylogeny on habitat use and thermoregulation. Habitat use, body temperatures ( Tb) and operative ...
Distribution and occurrence of carnivores in the Oklahoma panhandle.
(2000)
Five carnivore species representing three families were detected sufficiently to permit analysis. Carnivores were, in general, not distributed evenly over regional, landscape and local scales in the panhandle environment. ...
Ecological context and the evolution of mating biases in a freshwater amphipod species complex.
(2007)
Mating traits are among the most extravagant traits found in nature. As with any trait, understanding the diversification of mating traits requires information on both direct and indirect selection acting on the traits and ...
Sexual selection in a livebearing fish with a coercive mating system (western mosquitofish, Gambusia affinis).
(2006)
The livebearing fishes of the genus Gambusia are quickly becoming a model system to test alternative mechanisms of sexual selection in the form of coercive mating. I investigated effects of male and female body size, and ...
Correlates of extra-pair paternity and the effects of ectoparasites on nestling growth, parental provisioning and reproductive success in the house sparrow.
(2000)
In addition, I looked at another aspect of the reproductive biology of the House Sparrow, the effects of ectoparasites on nestling growth, parental provisioning and reproductive success. To determine whether Pellonyssus ...
Endocrine mediation of alternative mating tactics in toads: A proximate perspective on ecological patterns and sexual selection.
(2005)
Male Great Plains toads (Bufo cognatus) and Woodhouse's toads (Bufo woodhousii) alternate between one of two mating tactics; they may either vocalize to attract mates or they may adopt a non-calling "satellite" tactic. ...
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 ...