Arid
DOI10.1186/s40462-015-0048-3
Proximate cues to phases of movement in a highly dispersive waterfowl, Anas superciliosa
McEvoy, John F.1,2; Roshier, David A.3; Ribot, Raoul F. H.1; Bennett, Andy T. D.1
通讯作者McEvoy, John F.
来源期刊MOVEMENT ECOLOGY
ISSN2051-3933
出版年2015
卷号3
英文摘要

Background: Waterfowl can exploit distant ephemeral wetlands in arid environments and provide valuable insights into the response of birds to rapid environmental change, and behavioural flexibility of avian movements. Currently much of our understanding of behavioural flexibility of avian movement comes from studies of migration in seasonally predictable biomes in the northern hemisphere. We used GPS transmitters to track 20 Pacific black duck (Anas superciliosa) in arid central Australia. We exploited La Nia conditions that brought extensive flooding, so allowing a rare opportunity to investigate how weather and other environmental factors predict initiation of long distance movement toward freshly flooded habitats. We employed behavioural change point analysis to identify three phases of movement: sedentary, exploratory and long distance oriented movement. We then used random forest models to determine the ability of meteorological and remote sensed landscape variables to predict initiation of these phases.


Results: We found that initiation of exploratory movement phases is influenced by fluctuations in local weather conditions and accumulated rainfall in the landscape. Initiation of long distance movement phases was found to be highly individualistic with minor influence from local weather conditions.


Conclusions: Our study reveals how individuals utilise local conditions to respond to changes in resource distribution at broad scales. Our findings suggest that individual movement decisions of dispersive birds are informed by the integration of multiple weather cues operating at different temporal and spatial scales.


英文关键词Arid zone Behavioural flexibility ENSO Movement ecology Nomadism Random forest Rapid environmental change
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000215741800021
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/189275
作者单位1.Deakin Univ, Ctr Integrat Ecol, Locked Bag 20000, Geelong, Vic 3220, Australia;
2.Univ New England, Sch Environm & Rural Sci, Zool, Armidale, NSW 2351, Australia;
3.Australian Wildlife Conservancy, Adelaide, SA 5000, Australia
推荐引用方式
GB/T 7714
McEvoy, John F.,Roshier, David A.,Ribot, Raoul F. H.,et al. Proximate cues to phases of movement in a highly dispersive waterfowl, Anas superciliosa[J],2015,3.
APA McEvoy, John F.,Roshier, David A.,Ribot, Raoul F. H.,&Bennett, Andy T. D..(2015).Proximate cues to phases of movement in a highly dispersive waterfowl, Anas superciliosa.MOVEMENT ECOLOGY,3.
MLA McEvoy, John F.,et al."Proximate cues to phases of movement in a highly dispersive waterfowl, Anas superciliosa".MOVEMENT ECOLOGY 3(2015).
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