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Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird
We compared the vulnerability of a Nearctic-Neotropical migrant (Swainson’s Thrush, Catharus ustulatus) for three geographically-defined breeding populations in California by linking breeding and wintering regions, estimating migration distances, and quantifying relative forest loss. Using data from...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7099063/ https://www.ncbi.nlm.nih.gov/pubmed/32218483 http://dx.doi.org/10.1038/s41598-020-62132-6 |
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author | Humple, Diana L. Cormier, Renée L. Richardson, T. Will Burnett, Ryan D. Seavy, Nathaniel E. Dybala, Kristen E. Gardali, Thomas |
author_facet | Humple, Diana L. Cormier, Renée L. Richardson, T. Will Burnett, Ryan D. Seavy, Nathaniel E. Dybala, Kristen E. Gardali, Thomas |
author_sort | Humple, Diana L. |
collection | PubMed |
description | We compared the vulnerability of a Nearctic-Neotropical migrant (Swainson’s Thrush, Catharus ustulatus) for three geographically-defined breeding populations in California by linking breeding and wintering regions, estimating migration distances, and quantifying relative forest loss. Using data from light-level geolocator and GPS tags, we found that breeding birds from the relatively robust coastal population in the San Francisco Bay area wintered predominantly in western Mexico (n = 18), whereas the far rarer breeding birds from two inland populations that occur near one another in the Sierra Nevada and southern Cascades mountain ranges migrated to farther wintering destinations, with birds from the Lassen region (n = 5) predominantly going to Central America and birds from the Tahoe region (n = 7) predominantly to South America. Landscape-level relative forest loss was greater in the breeding and wintering regions of the two Cascade-Sierra populations than those of coastal birds. Longer migration distances and greater exposure to recent forest loss suggest greater current vulnerability of Cascade-Sierra birds. Our results demonstrate that for some species, quantifying migration distances and destinations across relatively small distances among breeding populations (in this case, 140–250 km apart) can identify dramatically different vulnerabilities that need to be considered in conservation planning. |
format | Online Article Text |
id | pubmed-7099063 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-70990632020-03-31 Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird Humple, Diana L. Cormier, Renée L. Richardson, T. Will Burnett, Ryan D. Seavy, Nathaniel E. Dybala, Kristen E. Gardali, Thomas Sci Rep Article We compared the vulnerability of a Nearctic-Neotropical migrant (Swainson’s Thrush, Catharus ustulatus) for three geographically-defined breeding populations in California by linking breeding and wintering regions, estimating migration distances, and quantifying relative forest loss. Using data from light-level geolocator and GPS tags, we found that breeding birds from the relatively robust coastal population in the San Francisco Bay area wintered predominantly in western Mexico (n = 18), whereas the far rarer breeding birds from two inland populations that occur near one another in the Sierra Nevada and southern Cascades mountain ranges migrated to farther wintering destinations, with birds from the Lassen region (n = 5) predominantly going to Central America and birds from the Tahoe region (n = 7) predominantly to South America. Landscape-level relative forest loss was greater in the breeding and wintering regions of the two Cascade-Sierra populations than those of coastal birds. Longer migration distances and greater exposure to recent forest loss suggest greater current vulnerability of Cascade-Sierra birds. Our results demonstrate that for some species, quantifying migration distances and destinations across relatively small distances among breeding populations (in this case, 140–250 km apart) can identify dramatically different vulnerabilities that need to be considered in conservation planning. Nature Publishing Group UK 2020-03-26 /pmc/articles/PMC7099063/ /pubmed/32218483 http://dx.doi.org/10.1038/s41598-020-62132-6 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Humple, Diana L. Cormier, Renée L. Richardson, T. Will Burnett, Ryan D. Seavy, Nathaniel E. Dybala, Kristen E. Gardali, Thomas Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird |
title | Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird |
title_full | Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird |
title_fullStr | Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird |
title_full_unstemmed | Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird |
title_short | Migration tracking reveals geographic variation in the vulnerability of a Nearctic-Neotropical migrant bird |
title_sort | migration tracking reveals geographic variation in the vulnerability of a nearctic-neotropical migrant bird |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7099063/ https://www.ncbi.nlm.nih.gov/pubmed/32218483 http://dx.doi.org/10.1038/s41598-020-62132-6 |
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