The Life and Demography of the Side-Blotched Lizard, Uta stansburiana
نویسندگان
چکیده
منابع مشابه
Adaptive Color Polymorphism and Unusually High Local Genetic Diversity in the Side-Blotched Lizard, Uta stansburiana
Recently, studies of adaptive color variation have become popular as models for examining the genetics of natural selection. We examined color pattern polymorphism and genetic variation in a population of side-blotched lizards (Uta stansburiana) that is found in habitats with both dark (lava) and light colored (granite) substrates. We conducted a limited experiment for adult phenotypic plastici...
متن کاملCorticosterone, locomotor performance, and metabolism in side-blotched lizards (Uta stansburiana).
Elevated levels of circulating corticosterone commonly occur in response to stressors in wild vertebrates. A rise in corticosterone, usually in animals of subordinate rank, results in a variety of effects on behavior and physiology. Behavioral and physiological responses to short-term increases in corticosterone are well studied. In contrast, the effects of chronic elevated levels of corticoste...
متن کاملIncreased Testosterone Decreases Medial Cortical Volume and Neurogenesis in Territorial Side-Blotched Lizards (Uta stansburiana)
Variation in an animal's spatial environment can induce variation in the hippocampus, an area of the brain involved in spatial cognitive processing. Specifically, increased spatial area use is correlated with increased hippocampal attributes, such as volume and neurogenesis. In the side-blotched lizard (Uta stansburiana), males demonstrate alternative reproductive tactics and are either territo...
متن کاملGlycogen, not dehydration or lipids, limits winter survival of side-blotched lizards (Uta stansburiana).
Climate change is causing winters to become milder (less cold and shorter). Recent studies of overwintering ectotherms have suggested that warmer winters increase metabolism and decrease winter survival and subsequent fecundity. Energetic constraints (insufficient energy stores) have been hypothesized as the cause of winter mortality but have not been tested explicitly. Thus, alternative source...
متن کاملEcology and breeding colors of the side - blotched lizard ( Uta stansburiana ) in the Grand Canyon by Robert Schell and Jessica Dettman
The side-blotched lizard (Uta stansburiana) is one of the most common lizards along the Colorado River corridor through the Grand Canyon (Warren and Schwalbe 1986). During our trip down the river, we saw numerous side-blotched lizards, despite the cold spring weather; they were by far the most frequently observed lizard species. Their colors were variable and bright, including shades of brown, ...
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ژورنال
عنوان ژورنال: Copeia
سال: 1968
ISSN: 0045-8511
DOI: 10.2307/1441872