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1.  A heterogeneous thermal environment enables remarkable behavioral thermoregulation in Uta stansburiana 
Ecology and Evolution  2014;4(17):3319-3329.
Ectotherms can attain preferred body temperatures by selecting specific temperature microhabitats within a varied thermal environment. The side-blotched lizard, Uta stansburiana may employ microhabitat selection to thermoregulate behaviorally. It is unknown to what degree habitat structural complexity provides thermal microhabitats for thermoregulation. Thermal microhabitat structure, lizard temperature, and substrate preference were simultaneously evaluated using thermal imaging. A broad range of microhabitat temperatures was available (mean range of 11°C within 1–2 m2) while mean lizard temperature was between 36°C and 38°C. Lizards selected sites that differed significantly from the mean environmental temperature, indicating behavioral thermoregulation, and maintained a temperature significantly above that of their perch (mean difference of 2.6°C). Uta's thermoregulatory potential within a complex thermal microhabitat structure suggests that a warming trend may prove advantageous, rather than detrimental for this population.
PMCID: PMC4228607  PMID: 25535549
Side-blotched lizard; thermal microhabitat; thermal preference; Uta stansburiana
2.  Interfamily variation in amphibian early life-history traits: raw material for natural selection? 
Ecology and Evolution  2012;2(7):1637-1643.
The embryonic development and time to hatching of eggs can be highly adaptive in some species, and thus under selective pressure. In this study, we examined the underlying interfamily variation in hatching timing and embryonic development in a population of an oviparous amphibian, the rough-skinned newt (Taricha granulosa). We found significant, high variability in degree of embryonic development and hatching timing among eggs from different females. Patterns of variation were present regardless of temperature. We also could not explain the differences among families by morphological traits of the females or their eggs. This study suggests that the variation necessary for natural selection to act upon is present in the early life history of this amphibian.
PMCID: PMC3434928  PMID: 22957168
Amphibian; egg; embryonic development; hatching; Salamandridae; Taricha granulosa; variation

Results 1-2 (2)