Arid
DOI10.1007/s00442-008-0987-0
Animal movement in dynamic landscapes: interaction between behavioural strategies and resource distributions
Roshier, David A.1; Doerr, Veronica A. J.2,3; Doerr, Erik D.2,3
通讯作者Roshier, David A.
来源期刊OECOLOGIA
ISSN0029-8549
出版年2008
卷号156期号:2页码:465-477
英文摘要

Most ecological and evolutionary processes are thought to critically depend on dispersal and individual movement but there is little empirical information on the movement strategies used by animals to find resources. In particular, it is unclear whether behavioural variation exists at all scales, or whether behavioural decisions are primarily made at small spatial scales and thus broad-scale patterns of movement simply reflect underlying resource distributions. We evaluated animal movement responses to variable resource distributions using the grey teal (Anas gracilis) in agricultural and desert landscapes in Australia as a model system. Birds in the two landscapes differed in the fractal dimension of their movement paths, with teal in the desert landscape moving less tortuously overall than their counterparts in the agricultural landscape. However, the most striking result was the high levels of individual variability in movement strategies, with different animals exhibiting different responses to the same resources. Teal in the agricultural basin moved with both high and low tortuosity, while teal in the desert basin primarily moved using low levels of tortuosity. These results call into question the idea that broad-scale movement patterns simply reflect underlying resource distributions, and suggest that movement responses in some animals may be behaviourally complex regardless of the spatial scale over which movement occurs.


英文关键词landscape heterogeneity animal movement fractals tortuosity Anas gracilis
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000255954100021
WOS关键词FRACTAL ANALYSIS ; SPATIAL-DISTRIBUTION ; INDIVIDUAL VARIATION ; SATELLITE TELEMETRY ; RANDOM SEARCHES ; CHACMA BABOONS ; ARID AUSTRALIA ; PAPIO-URSINUS ; LEVY FLIGHTS ; SCALE
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
来源机构Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/158690
作者单位1.Charles Sturt Univ, Inst Land Water Soc, Albury, NSW 2640, Australia;
2.CSIRO Sustainable Ecosyst, Canberra, ACT 2601, Australia;
3.Australian Natl Univ, Sch Bot & Zool, Canberra, ACT 0200, Australia
推荐引用方式
GB/T 7714
Roshier, David A.,Doerr, Veronica A. J.,Doerr, Erik D.. Animal movement in dynamic landscapes: interaction between behavioural strategies and resource distributions[J]. Commonwealth Scientific and Industrial Research Organisation,2008,156(2):465-477.
APA Roshier, David A.,Doerr, Veronica A. J.,&Doerr, Erik D..(2008).Animal movement in dynamic landscapes: interaction between behavioural strategies and resource distributions.OECOLOGIA,156(2),465-477.
MLA Roshier, David A.,et al."Animal movement in dynamic landscapes: interaction between behavioural strategies and resource distributions".OECOLOGIA 156.2(2008):465-477.
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