Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution?
Local studies have shown that the distribution of red knots Calidris canutus across intertidal mudflats is consistent with the predictions of an ideal distribution, but not a free distribution. Here, we scale up the study of feeding distributions to their entire wintering area in western Europe. Den...
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crroyalsociety:10.1098/rspb.2011.0026 2024-06-02T08:04:48+00:00 Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? Quaintenne, Gwenaël van Gils, Jan A. Bocher, Pierrick Dekinga, Anne Piersma, Theunis 2011 http://dx.doi.org/10.1098/rspb.2011.0026 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2011.0026 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2011.0026 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 278, issue 1719, page 2728-2736 ISSN 0962-8452 1471-2954 journal-article 2011 crroyalsociety https://doi.org/10.1098/rspb.2011.0026 2024-05-07T14:16:33Z Local studies have shown that the distribution of red knots Calidris canutus across intertidal mudflats is consistent with the predictions of an ideal distribution, but not a free distribution. Here, we scale up the study of feeding distributions to their entire wintering area in western Europe. Densities of red knots were compared among seven wintering sites in The Netherlands, UK and France, where the available mollusc food stocks were also measured and from where diets were known. We tested between three different distribution models that respectively assumed (i) a uniform distribution of red knots over all areas, (ii) a uniform distribution across all suitable habitat (based on threshold densities of harvestable mollusc prey), and (iii) an ideal and free distribution (IFD) across all suitable habitats. Red knots were not homogeneously distributed across the different European wintering areas, also not when considering suitable habitats only. Their distribution was best explained by the IFD model, suggesting that the birds are exposed to interference and have good knowledge about their resource landscape at the spatial scale of NW Europe, and that the costs of movement between estuaries, at least when averaged over a whole winter, are negligible. Article in Journal/Newspaper Calidris canutus The Royal Society Proceedings of the Royal Society B: Biological Sciences 278 1719 2728 2736 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Local studies have shown that the distribution of red knots Calidris canutus across intertidal mudflats is consistent with the predictions of an ideal distribution, but not a free distribution. Here, we scale up the study of feeding distributions to their entire wintering area in western Europe. Densities of red knots were compared among seven wintering sites in The Netherlands, UK and France, where the available mollusc food stocks were also measured and from where diets were known. We tested between three different distribution models that respectively assumed (i) a uniform distribution of red knots over all areas, (ii) a uniform distribution across all suitable habitat (based on threshold densities of harvestable mollusc prey), and (iii) an ideal and free distribution (IFD) across all suitable habitats. Red knots were not homogeneously distributed across the different European wintering areas, also not when considering suitable habitats only. Their distribution was best explained by the IFD model, suggesting that the birds are exposed to interference and have good knowledge about their resource landscape at the spatial scale of NW Europe, and that the costs of movement between estuaries, at least when averaged over a whole winter, are negligible. |
format |
Article in Journal/Newspaper |
author |
Quaintenne, Gwenaël van Gils, Jan A. Bocher, Pierrick Dekinga, Anne Piersma, Theunis |
spellingShingle |
Quaintenne, Gwenaël van Gils, Jan A. Bocher, Pierrick Dekinga, Anne Piersma, Theunis Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? |
author_facet |
Quaintenne, Gwenaël van Gils, Jan A. Bocher, Pierrick Dekinga, Anne Piersma, Theunis |
author_sort |
Quaintenne, Gwenaël |
title |
Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? |
title_short |
Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? |
title_full |
Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? |
title_fullStr |
Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? |
title_full_unstemmed |
Scaling up ideals to freedom: are densities of red knots across western Europe consistent with ideal free distribution? |
title_sort |
scaling up ideals to freedom: are densities of red knots across western europe consistent with ideal free distribution? |
publisher |
The Royal Society |
publishDate |
2011 |
url |
http://dx.doi.org/10.1098/rspb.2011.0026 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2011.0026 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2011.0026 |
genre |
Calidris canutus |
genre_facet |
Calidris canutus |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 278, issue 1719, page 2728-2736 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2011.0026 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
278 |
container_issue |
1719 |
container_start_page |
2728 |
op_container_end_page |
2736 |
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1800749454991556608 |