Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1098/rsbl.2013.1014 |
Behavioural flexibility allows an invasive vertebrate to survive in a semi-arid environment | |
Webb, Jonathan K.1; Letnic, Mike2; Jessop, Tim S.3; Dempster, Tim3 | |
通讯作者 | Webb, Jonathan K. |
来源期刊 | BIOLOGY LETTERS
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ISSN | 1744-9561 |
EISSN | 1744-957X |
出版年 | 2014 |
卷号 | 10期号:2 |
英文摘要 | Plasticity or evolution in behavioural responses are key attributes of successful animal invasions. In northern Australia, the invasive cane toad (Rhinella marina) recently invaded semi-arid regions. Here, cane toads endure repeated daily bouts of severe desiccation and thermal stress during the long dry season (April-October). We investigated whether cane toads have shifted their ancestral nocturnal rehydration behaviour to one that exploits water resources during the day. Such a shift in hydration behaviour could increase the fitness of individual toads by reducing exposure to desiccation and thermal stress suffered during the day even within terrestrial shelters. We used a novel method (acoustic tags) to monitor the daily hydration behaviour of 20 toads at two artificial reservoirs on Camfield station, Northern Territory. Remarkably, cane toads visited reservoirs to rehydrate during daylight hours, with peaks in activity between 9.00 and 17.00. This diurnal pattern of rehydration activity contrasts with nocturnal rehydration behaviour exhibited by adult toads in their native geographical range and more mesic parts of Australia. Our results demonstrate that cane toads phase shift a key behaviour to survive in a harsh semi-arid landscape. Behavioural phase shifts have rarely been reported in invasive species but could facilitate ongoing invasion success. |
英文关键词 | invasive species cane toad Rhinella marina plasticity temporal niche shift |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000332378300007 |
WOS关键词 | AMPHIBIAN BUFO-MARINUS ; SPREAD ; TOADS |
WOS类目 | Biology ; Ecology ; Evolutionary Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/181115 |
作者单位 | 1.Univ Technol Sydney, Sch Environm, Sydney, NSW 2007, Australia; 2.Univ New S Wales, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, Australia; 3.Univ Melbourne, Dept Zool, Melbourne, Vic 3010, Australia |
推荐引用方式 GB/T 7714 | Webb, Jonathan K.,Letnic, Mike,Jessop, Tim S.,et al. Behavioural flexibility allows an invasive vertebrate to survive in a semi-arid environment[J],2014,10(2). |
APA | Webb, Jonathan K.,Letnic, Mike,Jessop, Tim S.,&Dempster, Tim.(2014).Behavioural flexibility allows an invasive vertebrate to survive in a semi-arid environment.BIOLOGY LETTERS,10(2). |
MLA | Webb, Jonathan K.,et al."Behavioural flexibility allows an invasive vertebrate to survive in a semi-arid environment".BIOLOGY LETTERS 10.2(2014). |
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