干旱区生态环境知识资源中心(Arid): Trans-Gulf of Mexico loop migration of tree swallows revealed by solar geolocation

Arid

DOI	10.1093/czoolo/60.5.653
	Trans-Gulf of Mexico loop migration of tree swallows revealed by solar geolocation
	Bradley David W; Clark Robert G; Dunn Peter O; Laughlin Andrew J; Taylor Caz M; Vleck Carol; Whittingham Linda A; Winkler David W; Ryan Norris D
来源期刊	Current Zoology
ISSN	1674-5507
出版年	2014
卷号	60 期号:5 页码:653-659
英文摘要	One of the greatest feats of avian migration is the non-stop crossing of extensive areas of inhospitable habitat such as deserts and seas. Differences in spring and autumn migration routes have been reported in species that cross such barriers, and are thought to have evolved in response to seasonal variation in prevailing wind direction. We tested the hypothesis that migration routes vary seasonally with respect to the Gulf of Mexico in the tree swallow Tachycineta bicolor using solar geolocators attached and retrieved at 4 breeding sites in central North America. We found that 100 % of birds (n = 10) made a trans-Gulf flight of >850 km from Louisiana south to their wintering grounds in the Yucatan Peninsula in 12-36 hours, achieving minimum ground speeds as high as 32 m/s. Although most days during autumn migration were characterized by unfavorable headwinds blowing to the northwest, migration over the Gulf mostly occurred on days with strong winds blowing to the south. In contrast, in 8 of 9 (88 %) birds on spring migration returned from the wintering grounds towards Louisiana following a clockwise loop pattern flying over land to the west around the Gulf. During this spring period there were few days with prevailing winds from the south to assist northward migration. Results suggest that, despite being up to three times further (ca. 2,700 km), a coastal circum-Gulf spring migration represents the less risky route when wind conditions are not favorable. These findings also help to resolve a long-standing dispute in the literature concerning migration patterns between the US Gulf coast and Mexico, and provide insight into the factors shaping migration strategies of small songbirds migrating across large bodies of water.
英文关键词	Ecological Barrier Geolocation Gulf of Mexico Tachycineta bicolor Tree swallow Migration
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5348067
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335430
作者单位	Bradley David W, Department of Integrative Biology, University of Guelph, Guelph, NIG 2W1, Canada.; Ryan Norris D, Department of Integrative Biology, University of Guelph, Guelph, NIG 2W1, Canada.; Clark Robert G, Environment Canada, Saskatoon, S7N 0X4, Canada.; Dunn Peter O, Behavioral and Molecular Ecology Group, Department of Biological Sciences, University of Wisconsin, Milwaukee, 53201, USA.; Whittingham Linda A, Behavioral and Molecular Ecology Group, Department of Biological Sciences, University of Wisconsin, Milwaukee, 53201, USA.; Laughlin Andrew J, Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, 70118, USA.; Taylor Caz M, Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, 70118, USA.; Vleck Carol, Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, 50011-1020, USA.; Winkler David W, Department of Ecology and Evolutionary Biology, Museum of Vertebrates, and Lab of Ornithology, Cornell University, Ithaca...
推荐引用方式 GB/T 7714	Bradley David W,Clark Robert G,Dunn Peter O,et al. Trans-Gulf of Mexico loop migration of tree swallows revealed by solar geolocation[J],2014,60(5):653-659.
APA	Bradley David W.,Clark Robert G.,Dunn Peter O.,Laughlin Andrew J.,Taylor Caz M.,...&Ryan Norris D.(2014).Trans-Gulf of Mexico loop migration of tree swallows revealed by solar geolocation.Current Zoology,60(5),653-659.
MLA	Bradley David W,et al."Trans-Gulf of Mexico loop migration of tree swallows revealed by solar geolocation".Current Zoology 60.5(2014):653-659.