Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning
Sexual size dimorphism (SSD) implies correlated differences in energetic requirements and feeding opportunities, such that sexes will face different trade-offs in habitat selection. In seasonal migrants, this could result in a differential spatial distribution across the wintering range. To identify...
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Data Archiving and Networked Services (DANS)
2021
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Online Access: | https://doi.org/10.5061/dryad.71ds5 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::7c4606f51e91f75be261ff695837e6c0 2023-05-15T15:17:34+02:00 Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning Duijns, Sjoerd van Gils, Jan A. Spaans, Bernard ten Horn, Job Brugge, Maarten Piersma, Theunis 2021-07-04 https://doi.org/10.5061/dryad.71ds5 undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.5061/dryad.71ds5 https://dx.doi.org/10.5061/dryad.71ds5 lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:86713 10.5061/dryad.71ds5 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:86713 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care Limosa lapponica bar-tailed godwit Resource partitioning Bergmann’s rule Wadden Sea Dublin Bay Sylt Ile de Re Grevelingendam the Wash envir psy Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2021 fttriple https://doi.org/10.5061/dryad.71ds5 2023-01-22T17:23:56Z Sexual size dimorphism (SSD) implies correlated differences in energetic requirements and feeding opportunities, such that sexes will face different trade-offs in habitat selection. In seasonal migrants, this could result in a differential spatial distribution across the wintering range. To identify the ecological causes of sexual spatial segregation, we studied a sexually dimorphic shorebird, the bar-tailed godwit Limosa lapponica, in which females have a larger body and a longer bill than males. With respect to the trade-offs that these migratory shorebirds experience in their choice of wintering area, northern and colder wintering sites have the benefit of being closer to the Arctic breeding grounds. According to Bergmann's rule, the larger females should incur lower energetic costs per unit of body mass over males, helping them to winter in the cold. However, as the sexes have rather different bill lengths, differences in sex-specific wintering sites could also be due to the vertical distribution of their buried prey, that is, resource partitioning. Here, in a comparison between six main intertidal wintering areas across the entire winter range of the lapponica subspecies in northwest Europe, we show that the percentage of females between sites was not correlated with the cost of wintering, but was positively correlated with the biomass in the bottom layer and negatively with the biomass in the top layer. We conclude that resource partitioning, rather than relative expenditure advantages, best explains the differential spatial distribution of male and female bar-tailed godwits across northwest Europe. datafile 1Basic datafile, with counts per sex and area, including the summary of benthic biomassdatafile 2Datafile of the abdominal profile scores of male and female bar-tailed godwits per area. The costs of wintering are also includeddatafile 3Summary of calculated costs of wintering and flying to and from their different wintering sites, separated per sex Dataset Arctic Unknown Arctic |
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Life sciences medicine and health care Limosa lapponica bar-tailed godwit Resource partitioning Bergmann’s rule Wadden Sea Dublin Bay Sylt Ile de Re Grevelingendam the Wash envir psy |
spellingShingle |
Life sciences medicine and health care Limosa lapponica bar-tailed godwit Resource partitioning Bergmann’s rule Wadden Sea Dublin Bay Sylt Ile de Re Grevelingendam the Wash envir psy Duijns, Sjoerd van Gils, Jan A. Spaans, Bernard ten Horn, Job Brugge, Maarten Piersma, Theunis Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
topic_facet |
Life sciences medicine and health care Limosa lapponica bar-tailed godwit Resource partitioning Bergmann’s rule Wadden Sea Dublin Bay Sylt Ile de Re Grevelingendam the Wash envir psy |
description |
Sexual size dimorphism (SSD) implies correlated differences in energetic requirements and feeding opportunities, such that sexes will face different trade-offs in habitat selection. In seasonal migrants, this could result in a differential spatial distribution across the wintering range. To identify the ecological causes of sexual spatial segregation, we studied a sexually dimorphic shorebird, the bar-tailed godwit Limosa lapponica, in which females have a larger body and a longer bill than males. With respect to the trade-offs that these migratory shorebirds experience in their choice of wintering area, northern and colder wintering sites have the benefit of being closer to the Arctic breeding grounds. According to Bergmann's rule, the larger females should incur lower energetic costs per unit of body mass over males, helping them to winter in the cold. However, as the sexes have rather different bill lengths, differences in sex-specific wintering sites could also be due to the vertical distribution of their buried prey, that is, resource partitioning. Here, in a comparison between six main intertidal wintering areas across the entire winter range of the lapponica subspecies in northwest Europe, we show that the percentage of females between sites was not correlated with the cost of wintering, but was positively correlated with the biomass in the bottom layer and negatively with the biomass in the top layer. We conclude that resource partitioning, rather than relative expenditure advantages, best explains the differential spatial distribution of male and female bar-tailed godwits across northwest Europe. datafile 1Basic datafile, with counts per sex and area, including the summary of benthic biomassdatafile 2Datafile of the abdominal profile scores of male and female bar-tailed godwits per area. The costs of wintering are also includeddatafile 3Summary of calculated costs of wintering and flying to and from their different wintering sites, separated per sex |
format |
Dataset |
author |
Duijns, Sjoerd van Gils, Jan A. Spaans, Bernard ten Horn, Job Brugge, Maarten Piersma, Theunis |
author_facet |
Duijns, Sjoerd van Gils, Jan A. Spaans, Bernard ten Horn, Job Brugge, Maarten Piersma, Theunis |
author_sort |
Duijns, Sjoerd |
title |
Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
title_short |
Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
title_full |
Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
title_fullStr |
Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
title_full_unstemmed |
Data from: Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
title_sort |
data from: sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2021 |
url |
https://doi.org/10.5061/dryad.71ds5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:86713 10.5061/dryad.71ds5 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:86713 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
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http://dx.doi.org/10.5061/dryad.71ds5 https://dx.doi.org/10.5061/dryad.71ds5 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.71ds5 |
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1766347802423590912 |