Madeleine de Jong, David G. Chapple, Bob B.M. Wong
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引用次数: 0
Abstract
As climate change progresses, species persistence will be influenced by the ability to adjust behaviour in response to rising temperatures. Thermal environments experienced in early development can have permanent effects on phenotype. However, it is largely unexplored whether these effects subsequently impact behavioural plasticity in response to thermal environments experienced after this early developmental period. To address this, we incubated delicate skink eggs (Lampropholis delicata) across three temperature treatments and quantified activity, microhabitat choice, and dispersal in mild and hot environments when skinks reached four to six weeks of age. Effects of incubation and thermal environment, as well as their interaction, were sex- and behaviour-specific. Differences in incubation temperature affected behavioural variation in response to thermal environment most strongly for activity, followed by dispersal, with no effect on microhabitat use. Males were the most plastic sex. Hot-incubated males had the greatest increase in activity and cool-incubated males dispersed further in a hot environment. Mild-incubated males were also the most dispersive compared to other male incubation groups. In contrast, females did not differ as often between incubation treatments or thermal environments. These results highlight sex-dependent effects of developmental temperature on behavioural plasticity, indicating climate change may impact males and females differently. If these effects result in sex-specific effects on survival, there may be implications for population growth and dynamics with a changing climate.
期刊介绍:
The Journal of Thermal Biology publishes articles that advance our knowledge on the ways and mechanisms through which temperature affects man and animals. This includes studies of their responses to these effects and on the ecological consequences. Directly relevant to this theme are:
• The mechanisms of thermal limitation, heat and cold injury, and the resistance of organisms to extremes of temperature
• The mechanisms involved in acclimation, acclimatization and evolutionary adaptation to temperature
• Mechanisms underlying the patterns of hibernation, torpor, dormancy, aestivation and diapause
• Effects of temperature on reproduction and development, growth, ageing and life-span
• Studies on modelling heat transfer between organisms and their environment
• The contributions of temperature to effects of climate change on animal species and man
• Studies of conservation biology and physiology related to temperature
• Behavioural and physiological regulation of body temperature including its pathophysiology and fever
• Medical applications of hypo- and hyperthermia
Article types:
• Original articles
• Review articles