A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses
Abstract For an understanding of the effect of climate change on animal population dynamics, it is crucial to be able to identify which climatologic parameters affect which demographic rate, and what the underlying mechanistic links are. An important reason for why the interactions between demograph...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2007
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1365-2486.2007.01533.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2007.01533.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2007.01533.x |
id |
crwiley:10.1111/j.1365-2486.2007.01533.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1365-2486.2007.01533.x 2024-06-23T07:55:01+00:00 A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses SANDVIK, HANNO COULSON, TIM SÆTHER, BERNT‐ERIK 2007 http://dx.doi.org/10.1111/j.1365-2486.2007.01533.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2007.01533.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2007.01533.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 14, issue 4, page 703-713 ISSN 1354-1013 1365-2486 journal-article 2007 crwiley https://doi.org/10.1111/j.1365-2486.2007.01533.x 2024-06-11T04:42:35Z Abstract For an understanding of the effect of climate change on animal population dynamics, it is crucial to be able to identify which climatologic parameters affect which demographic rate, and what the underlying mechanistic links are. An important reason for why the interactions between demography and climate still are poorly understood is that the effects of climate vary both geographically and taxonomically. Here, we analyse interspecifically how different climate variables affect the breeding success of North Atlantic seabird species along latitudinal and longitudinal gradients. By approaching the problem comparatively, we are able to generalize across populations and species. We find a strong interactive effect of climate and latitude on breeding success. Of the climatic variables considered, local sea surface temperatures during the breeding season tend to be more relevant than the North Atlantic Oscillation (NAO). However, the effect of NAO on breeding success shows a clear geographic pattern, changing in sign from positive in the south to negative in the north. If this interaction is taken account of, the model explains more variation than any model with sea surface temperature. This superiority of the NAO index is due to its ability to capture effects of more than one season in a single parameter. Mechanistically, however, several lines of evidence suggest that sea surface temperature is the biologically most relevant explanatory variable. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library Global Change Biology 14 4 703 713 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract For an understanding of the effect of climate change on animal population dynamics, it is crucial to be able to identify which climatologic parameters affect which demographic rate, and what the underlying mechanistic links are. An important reason for why the interactions between demography and climate still are poorly understood is that the effects of climate vary both geographically and taxonomically. Here, we analyse interspecifically how different climate variables affect the breeding success of North Atlantic seabird species along latitudinal and longitudinal gradients. By approaching the problem comparatively, we are able to generalize across populations and species. We find a strong interactive effect of climate and latitude on breeding success. Of the climatic variables considered, local sea surface temperatures during the breeding season tend to be more relevant than the North Atlantic Oscillation (NAO). However, the effect of NAO on breeding success shows a clear geographic pattern, changing in sign from positive in the south to negative in the north. If this interaction is taken account of, the model explains more variation than any model with sea surface temperature. This superiority of the NAO index is due to its ability to capture effects of more than one season in a single parameter. Mechanistically, however, several lines of evidence suggest that sea surface temperature is the biologically most relevant explanatory variable. |
format |
Article in Journal/Newspaper |
author |
SANDVIK, HANNO COULSON, TIM SÆTHER, BERNT‐ERIK |
spellingShingle |
SANDVIK, HANNO COULSON, TIM SÆTHER, BERNT‐ERIK A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
author_facet |
SANDVIK, HANNO COULSON, TIM SÆTHER, BERNT‐ERIK |
author_sort |
SANDVIK, HANNO |
title |
A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
title_short |
A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
title_full |
A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
title_fullStr |
A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
title_full_unstemmed |
A latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
title_sort |
latitudinal gradient in climate effects on seabird demography: results from interspecific analyses |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.1365-2486.2007.01533.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2007.01533.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2007.01533.x |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Global Change Biology volume 14, issue 4, page 703-713 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2486.2007.01533.x |
container_title |
Global Change Biology |
container_volume |
14 |
container_issue |
4 |
container_start_page |
703 |
op_container_end_page |
713 |
_version_ |
1802647409927389184 |