Behavioral temperature regulation by aquatic ectotherms during hypoxia
Behavioral temperature regulation by aquatic ectotherms during hypoxia
复制标题
缺氧期间水生变温动物的行为温度调节
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
S. Wood
中科院分区：
文献类型：
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作者：
R. Dupré;S. Wood
陆生动物通过行为和（或）生理手段降低体温，以应对环境缺氧或贫血。由于缺氧是常见的，在一些水生环境中，温度选择的两个水生外温动物，幼形虎蝾螈（Ambystoma tigrinum）和小龙虾（Procambarus simulans），在环境缺氧的水生热梯度进行了研究。当暴露于约37托（4.9千帕）的环境时，两种物种都选择较低的温度。 这些数据表明，降低体温，从而氧气需求，在面对低氧可用性可能是一种适应性反应，在异温水生环境。不同物种的现有数据表明，对缺氧的低温反应是一种分类学上普遍存在的现象，发生在呼吸水和空气的动物中。
Terrestrial animals lower their body temperature by behavioral and (or) physiological means in response to environmental or anemic hypoxia. Because hypoxia is common in some aquatic environments, temperature selection by two aquatic ectotherms, paedomorphic tiger salamanders (Ambystoma tigrinum) and crayfish (Procambarus simulans), was examined during environmental hypoxia in an aquatic thermal gradient. Both species selected lower temperatures when exposed to an environment with a of about 37 Torr (4.9 kPa). These data suggest that the lowering of body temperature, and thus oxygen demand, in the face of a low oxygen availability may be an adaptive response in heterothermal aquatic environments. The available data for diverse species show that the hypothermic response to hypoxia is a taxonomically widespread phenomenon occurring in both water- and air-breathing animals.