Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?

The unusually high quality of census data for large waterbirds in Europe facilitates the study of how population change varies across a broad geographical range and relates to global change. The wintering population of the greylag goose Anser anser in the Atlantic flyway spanning between Sweden and...

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Autores principales: Ramo, Cristina, Amat, Juan A., Nilsson, Leif, Schricke, Vincent, Rodríguez-Alonso, Mariano, Gómez-Crespo, Enrique, Jubete, Fernando, Navedo, Juan G., Masero, José A., Palacios, Jesús, Boos, Mathieu, Green, Andy J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605798/
https://www.ncbi.nlm.nih.gov/pubmed/26465601
http://dx.doi.org/10.1371/journal.pone.0140181
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author Ramo, Cristina
Amat, Juan A.
Nilsson, Leif
Schricke, Vincent
Rodríguez-Alonso, Mariano
Gómez-Crespo, Enrique
Jubete, Fernando
Navedo, Juan G.
Masero, José A.
Palacios, Jesús
Boos, Mathieu
Green, Andy J.
author_facet Ramo, Cristina
Amat, Juan A.
Nilsson, Leif
Schricke, Vincent
Rodríguez-Alonso, Mariano
Gómez-Crespo, Enrique
Jubete, Fernando
Navedo, Juan G.
Masero, José A.
Palacios, Jesús
Boos, Mathieu
Green, Andy J.
author_sort Ramo, Cristina
collection PubMed
description The unusually high quality of census data for large waterbirds in Europe facilitates the study of how population change varies across a broad geographical range and relates to global change. The wintering population of the greylag goose Anser anser in the Atlantic flyway spanning between Sweden and Spain has increased from 120 000 to 610 000 individuals over the past three decades, and expanded its wintering range northwards. Although population sizes recorded in January have increased in all seven countries in the wintering range, we found a pronounced northwards latitudinal effect in which the rate of increase is higher at greater latitudes, causing a constant shift in the centre of gravity for the spatial distribution of wintering geese. Local winter temperatures have a strong influence on goose numbers but in a manner that is also dependent on latitude, with the partial effect of temperature (while controlling for the increasing population trend between years) being negative at the south end and positive at the north end of the flyway. Contrary to assumptions in the literature, the expansion of crops exploited by greylag geese has made little contribution to the increases in population size. Only in one case (expansion of winter cereals in Denmark) did we find evidence of an effect of changing land use. The expanding and shifting greylag population is likely to have increasing impacts on habitats in northern Europe during the course of this century.
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spelling pubmed-46057982015-10-29 Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change? Ramo, Cristina Amat, Juan A. Nilsson, Leif Schricke, Vincent Rodríguez-Alonso, Mariano Gómez-Crespo, Enrique Jubete, Fernando Navedo, Juan G. Masero, José A. Palacios, Jesús Boos, Mathieu Green, Andy J. PLoS One Research Article The unusually high quality of census data for large waterbirds in Europe facilitates the study of how population change varies across a broad geographical range and relates to global change. The wintering population of the greylag goose Anser anser in the Atlantic flyway spanning between Sweden and Spain has increased from 120 000 to 610 000 individuals over the past three decades, and expanded its wintering range northwards. Although population sizes recorded in January have increased in all seven countries in the wintering range, we found a pronounced northwards latitudinal effect in which the rate of increase is higher at greater latitudes, causing a constant shift in the centre of gravity for the spatial distribution of wintering geese. Local winter temperatures have a strong influence on goose numbers but in a manner that is also dependent on latitude, with the partial effect of temperature (while controlling for the increasing population trend between years) being negative at the south end and positive at the north end of the flyway. Contrary to assumptions in the literature, the expansion of crops exploited by greylag geese has made little contribution to the increases in population size. Only in one case (expansion of winter cereals in Denmark) did we find evidence of an effect of changing land use. The expanding and shifting greylag population is likely to have increasing impacts on habitats in northern Europe during the course of this century. Public Library of Science 2015-10-14 /pmc/articles/PMC4605798/ /pubmed/26465601 http://dx.doi.org/10.1371/journal.pone.0140181 Text en © 2015 Ramo et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Ramo, Cristina
Amat, Juan A.
Nilsson, Leif
Schricke, Vincent
Rodríguez-Alonso, Mariano
Gómez-Crespo, Enrique
Jubete, Fernando
Navedo, Juan G.
Masero, José A.
Palacios, Jesús
Boos, Mathieu
Green, Andy J.
Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?
title Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?
title_full Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?
title_fullStr Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?
title_full_unstemmed Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?
title_short Latitudinal-Related Variation in Wintering Population Trends of Greylag Geese (Anser Anser) along the Atlantic Flyway: A Response to Climate Change?
title_sort latitudinal-related variation in wintering population trends of greylag geese (anser anser) along the atlantic flyway: a response to climate change?
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605798/
https://www.ncbi.nlm.nih.gov/pubmed/26465601
http://dx.doi.org/10.1371/journal.pone.0140181
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