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Metabolic responses of sand fiddler crab, Uca pugilator, populations in northwest Florida are greatly influenced by seasonal temperature fluctuations. Crabs acclimated at 20 °C and immediately transferred to either 14 or 26 °C produced an acute metabolic response with respective temperature quotient (Q10) values of 3.46 and 3.91. Crabs acclimated at 10 and 20 °C exhibited a Q10 of 2.62 indicating a partial compensation response. A brumation (reverse) response (Q10 value of 20.11) was observed for acclimated crabs between 5 and 10 °C. Brumation is advantageous during winter when food supplies are scarce and crabs must survive extensive periods of inactivity. 相似文献
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