Arid
DOI10.1242/jeb.187930
Interactions between corticosterone phenotype, environmental stressor pervasiveness and irruptive movement-related survival in the cane toad
Jessop, Tim S.1; Webb, Jonathan2; Dempster, Tim3; Feit, Benjamin4,5; Letnic, Mike5
通讯作者Jessop, Tim S.
来源期刊JOURNAL OF EXPERIMENTAL BIOLOGY
ISSN0022-0949
EISSN1477-9145
出版年2018
卷号221期号:24
英文摘要

Animals use irruptive movement to avoid exposure to stochastic and pervasive environmental stressors that impact fitness. Beneficial irruptive movements transfer individuals from high-stress areas (conferring low fitness) to alternative localities that may improve survival or reproduction. However, being stochastic, environmental stressors can limit an animal’s preparatory capacity to enhance irruptive movement performance. Thus individuals must rely on pre-existing, or rapidly induced, physiological and behavioural responses. Rapid elevation of glucocorticoid hormones in response to environmental stressors are widely implicated in adjusting physiological and behaviour processes that could influence irruptive movement capacity. However, there remains little direct evidence demonstrating that corticosterone-regulated movement performance or interaction with pervasiveness of environmental stress, confers adaptive movement outcomes. Here, we compared how movement-related survival of cane toads (Rhinella marina) varied with three different experimental corticosterone phenotypes across four increments of increasing environmental stressor pervasiveness (i.e. distance from water in a semi-arid landscape). Our results indicated that toads with phenotypically increased corticosterone levels attained higher movement-related survival compared with individuals with control or lowered corticosterone phenotypes. However, the effects of corticosterone phenotypes on movement-related survival to some extent co-varied with stressor pervasiveness. Thus, our study demonstrates how the interplay between an individual’s corticosterone phenotype and movement capacity alongside the arising costs of movement and the pervasiveness of the environmental stressor can affect survival outcomes.


英文关键词Phenotypic engineering Glucocorticoids Movement behaviour Fitness Stressor magnitude
类型Article
语种英语
国家Australia ; Sweden
收录类别SCI-E
WOS记录号WOS:000454692700009
WOS关键词EXOGENOUS CORTICOSTERONE ; BAROMETRIC-PRESSURE ; LOCOMOTOR-ACTIVITY ; INVASION HUBS ; LIFE-HISTORY ; BEHAVIOR ; DISPERSAL ; ECOLOGY ; PHYSIOLOGY ; HORMONES
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/210900
作者单位1.Deakin Univ, Ctr Integrat Ecol, Geelong, Vic 3220, Australia;
2.Univ Technol Sydney, Sch Environm, Sydney, NSW 2007, Australia;
3.Univ Melbourne, Sch Biosci, Melbourne, Vic 3010, Australia;
4.Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden;
5.Univ New South Wales, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, Australia
推荐引用方式
GB/T 7714
Jessop, Tim S.,Webb, Jonathan,Dempster, Tim,et al. Interactions between corticosterone phenotype, environmental stressor pervasiveness and irruptive movement-related survival in the cane toad[J],2018,221(24).
APA Jessop, Tim S.,Webb, Jonathan,Dempster, Tim,Feit, Benjamin,&Letnic, Mike.(2018).Interactions between corticosterone phenotype, environmental stressor pervasiveness and irruptive movement-related survival in the cane toad.JOURNAL OF EXPERIMENTAL BIOLOGY,221(24).
MLA Jessop, Tim S.,et al."Interactions between corticosterone phenotype, environmental stressor pervasiveness and irruptive movement-related survival in the cane toad".JOURNAL OF EXPERIMENTAL BIOLOGY 221.24(2018).
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