Annual variation in long-distance dispersal driven by breeding and non-breeding season climatic conditions in a migratory bird
| dc.contributor.author | Rushing, Clark S. | |
| dc.contributor.author | Dudash, Michele R. | |
| dc.contributor.author | Studds, Colin E. | |
| dc.contributor.author | Marra, Peter P. | |
| dc.date.accessioned | 2019-03-11T13:52:10Z | |
| dc.date.available | 2019-03-11T13:52:10Z | |
| dc.date.issued | 2014-11-25 | |
| dc.description.abstract | Long‐distance dispersal is a fundamental process in ecology and evolution but the factors that influence these movements remain poorly understood in most species. We used stable hydrogen isotopes to quantify the rate and direction of long‐distance immigration in a breeding population of American redstarts and to test whether the settlement decisions that result in long‐distance dispersal are driven by habitat saturation or by the phenology of breeding‐season resources. Our results provide evidence that both natal dispersal and breeding dispersal were influenced by the timing of breeding‐season phenology, with both age classes more likely to disperse north in years when the onset of breeding‐season phenology occurs earlier than normal. Yearlings were also more likely to disperse north following winters with poor habitat quality on their non‐breeding grounds, demonstrating that carry‐over effects from the non‐breeding season influence natal dispersal in this species. Collectively, these results are consistent with the hypothesis that American redstarts use the phenology of breeding season resources as a cue to select breeding sites. Our results suggest that long‐distance dispersal may allow individuals to rapidly respond to advancing phenology caused by global climate change, though their ability to do so may be constrained by long‐term decline in habitat quality predicted for their tropical non‐breeding grounds. | en_US |
| dc.description.sponsorship | Funding for fieldwork was provided by the COSMOS Foundation, the American Ornithologists Union, the Washington Biologists Field Club, the Maryland Ornithological Society and the National Science Foundation. CSR was supported by the BEES/BISI program, a Wiley Dissertation Fellowship from the Univ. of Maryland, and a Pre-doctoral fellowship from the Smithsonian Inst. | en_US |
| dc.description.uri | https://onlinelibrary.wiley.com/doi/epdf/10.1111/ecog.01196 | en_US |
| dc.format.extent | 9 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2x0fu-pvgm | |
| dc.identifier.citation | Clark S. Rushing, Michele R. Dudash, Colin E. Studds and Peter P. Marra, Annual variation in long-distance dispersal driven by breeding and non-breeding season climatic conditions in a migratory bird, Ecography 38: 1006–1014, 2015 doi: 10.1111/ecog.01196 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/ecog.01196 | |
| dc.identifier.uri | http://hdl.handle.net/11603/13003 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Nordic Society Oikos | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Geography and Environmental Systems Department | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | * |
| dc.rights | Public Domain Mark 1.0 | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.subject | breeding‐season phenology | en_US |
| dc.subject | long‐distance dispersal | en_US |
| dc.subject | large‐scale non‐breeding habitat quality | en_US |
| dc.title | Annual variation in long-distance dispersal driven by breeding and non-breeding season climatic conditions in a migratory bird | en_US |
| dc.type | Text | en_US |