Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1186/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
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ISSN | 2051-3933 |
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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