Global ETD Search
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Showing 1 to 2 of 2 for “"Cold Climate Hypothesis"”.
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Constraints on the adaptive potential of ectotherms to climate change
Anthropogenic climate change is rapidly altering global thermal regimes. While these shifts threaten all biodiversity, ectothermic organisms are particularly at risk because their physiological functions rely heavily on temperature. While rapid evolutionary adaptation has been proposed as a …
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Physiological and Ecological Constraints on the Evolution of Viviparity in Sceloporine Lizards
… partial pressures. In Chapter one, I tested the hypothesis that embryos of the oviparous lizard Sceloporus undulatus from a high-latitude population are laid at more advanced developmental stages and have a higher developmental rate at low partial pressure oxygen (pO2) under simulated in utero …