Fence Lizard
نویسندگان
چکیده
منابع مشابه
Convergent evolution of embryonic growth and development in the eastern fence lizard (Sceloporus undulatus).
Theory predicts that cold environments will select for strategies that enhance the growth of ectotherms, such as early emergence from nests and more efficient use of resources. We used a common garden experiment to detect parallel clines in rates of embryonic growth and development by eastern fence lizards (Sceloporus undulatus). Using realistic thermal conditions, we measured growth efficienci...
متن کاملAndrogen receptor-immunoreactivity in the forebrain of the Eastern Fence lizard (Sceloporus undulatus).
Androgen receptor (AR) distribution in the lizard forebrain and optic tectum was examined using PG21 immunohistochemistry. In the male Eastern Fence lizard, AR-immunoreactive (-ir) nuclei were observed in the medial preoptic area, ventromedial and arcuate hypothalamic nuclei, periventricular hypothalamus, premammillary nucleus, bed nucleus of the stria terminalis, and ventral posterior amygdala...
متن کاملFunctional Consequences of Acute Temperature Stress in the Western Fence Lizard, Sceloporus Occidentalis
One of the ongoing goals of evolutionary biology is to understand geographic variation in organism phenotypes along environmental gradients. Phenotypic differences among populations can reflect local adaptation, which results from genetic differentiation among populations, phenotypic plasticity, which results from phenotypic variation in a genotype along an environmental gradient, or, a combina...
متن کاملAscertainment bias in spatially structured populations: a case study in the eastern fence lizard.
Despite increased interest in applying single nucleotide polymorphism (SNP) data to questions in natural systems, one unresolved issue is to what extent the ascertainment bias induced during the SNP discovery phase will impact available analysis methods. Although most studies addressing ascertainment bias have focused on human populations, it is not clear whether existing methods will work when...
متن کاملMulti-Locus Estimates of Population Structure and Migration in a Fence Lizard Hybrid Zone
A hybrid zone between two species of lizards in the genus Sceloporus (S. cowlesi and S. tristichus) on the Mogollon Rim in Arizona provides a unique opportunity to study the processes of lineage divergence and merging. This hybrid zone involves complex interactions between 2 morphologically and ecologically divergent subspecies, 3 chromosomal groups, and 4 mitochondrial DNA (mtDNA) clades. The ...
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ژورنال
عنوان ژورنال: Bulletin of the Ecological Society of America
سال: 2009
ISSN: 0012-9623
DOI: 10.1890/0012-9623-90.1.36