Personality and plasticity: consistent responses within-, but not across-temperature situations in crabs
Personality and plasticity: consistent responses within-, but not across-temperature situations in crabs
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DOI：
10.1163/1568539x-00003081
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发表时间：
2013-01-01
期刊：
影响因子：
1.3
通讯作者：
Gribben, Paul E.
中科院分区：
文献类型：
--
作者：
Biro, Peter A.;O'Connor, Jack;Gribben, Paul E.
最近的研究表明，在不同情境下进行的重复行为分析，可以揭示两个传统上不同的研究领域的重要见解：动物个性和行为可塑性的个体差异。然而，目前相对较少的研究提出这样的数据，很少考虑如何改变非生物条件影响行为可塑性。代谢率的个体差异被认为是促进个性的一种近似机制，这导致人们推测代谢对温度敏感性的个体差异可能会影响外温动物的行为反应。目前，只有一项研究（两项中的一项）测试并显示了对温度的行为反应的个体差异。在这里，我们反复分析了海洋螃蟹在一个狭窄的温度范围内的行为，以测试对温度反应的个体差异。我们观察到在给定温度下随时间推移而一致的行为的个体间差异（个性的证据），以及对温度反应的个体差异（可塑性的证据）。这项研究增加了关于外温动物行为对温度敏感性的非常少的文献，并表明这种现象可能很普遍。我们推测代谢的作用，作为一个近似的机制，可能会解释这些个体差异的可塑性，并为未来的研究提出建议，以测试这一假设。
Recent research suggests that repeated assays of behaviour, conducted both within and across situations, could reveal important insights into two traditionally distinct areas of study: animal personality and individual differences in behavioural plasticity. However, at present relatively few studies present such data, and few consider how changing abiotic conditions affect behavioural plasticity. Individual differences in metabolic rate have been suggested as a proximate mechanism promoting personality, leading one to speculate that individual differences in metabolic sensitivity to temperature may affect behavioural responses in ectotherms. At present, only one study (out of two) has tested for and shown individual differences in behavioural responses to temperature. Here, we repeatedly assayed the behaviour of a marine crab across a narrow range of temperatures to test for individual differences in responses to temperature. We observed large inter-individual differences in behaviour that were consistent over time at a given temperature (evidence for personality), and individual differences in responses to temperature (evidence for plasticity). This study adds to the very scant literature on ectotherm behavioural sensitivity to temperature, and suggests the phenomenon might be widespread. We speculate about the role of metabolism as a proximate mechanism that might explain these individual differences in plasticity and make suggestions for future research to test this hypothesis.