Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/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
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ISSN | 0029-8549 |
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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