Data from: Body condition explains migratory performance of a long-distance migrant
Body condition (i.e. relative mass after correcting for structural size) affects the behaviour of migrating birds, but how body condition affects migratory performance, timing and fitness is still largely unknown. Here, we studied the effects of relative body condition on individual departure decisi...
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Online Access: | http://hdl.handle.net/10255/dryad.157396 https://doi.org/10.5061/dryad.65t4k |
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ftdryad:oai:v1.datadryad.org:10255/dryad.157396 2023-05-15T15:10:00+02:00 Data from: Body condition explains migratory performance of a long-distance migrant Duijns, Sjoerd Niles, Lawrence J. Dey, Amanda Aubry, Yves Friis, Christian Koch, Stephanie Anderson, Alexandra M. Smith, Paul A. North America 2014-2016 2017-10-02T13:40:52Z http://hdl.handle.net/10255/dryad.157396 https://doi.org/10.5061/dryad.65t4k unknown doi:10.5061/dryad.65t4k/2 doi:10.1098/rspb.2017.1374 doi:10.5061/dryad.65t4k Duijns S, Niles LJ, Dey A, Aubry Y, Friis C, Koch S, Anderson AM, Smith PA (2017) Body condition explains migratory performance of a long-distance migrant. Proceedings of the Royal Society B 284(1866): 20171374. http://hdl.handle.net/10255/dryad.157396 automated telemetry departure decision migratory performance shorebirds Article 2017 ftdryad https://doi.org/10.5061/dryad.65t4k https://doi.org/10.5061/dryad.65t4k/2 https://doi.org/10.1098/rspb.2017.1374 2020-01-01T15:56:59Z Body condition (i.e. relative mass after correcting for structural size) affects the behaviour of migrating birds, but how body condition affects migratory performance, timing and fitness is still largely unknown. Here, we studied the effects of relative body condition on individual departure decisions, wind selectivity, flight speed and timing of migration for a long-distance migratory shorebird, the red knot Calidris canutus rufa. By using automated VHF telemetry on a continental scale, we studied knots' migratory movements with unprecedented temporal resolution over a 3-year period. Knots with a higher relative body condition left the staging site later than birds in lower condition, yet still arrived earlier to their Arctic breeding grounds compared to knots in lower relative body condition. They accomplished this by selecting more favourable winds at departure, thereby flying faster and making shorter stops en route. Individuals with a higher relative body condition in spring migrated south up to a month later than individuals in lower condition, suggesting that individuals in better condition were more likely to have bred successfully. Moreover, individuals with a lower relative body condition in spring had a lower probability of being detected in autumn, suggestive of increased mortality. The pressure to arrive early to the breeding grounds is considered to be an important constraint of migratory behaviour and this study highlights the important influence of body condition on migratory decisions, performance and potentially fitness of migrant birds. Article in Journal/Newspaper Arctic Calidris canutus Red Knot Dryad Digital Repository (Duke University) Arctic |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
automated telemetry departure decision migratory performance shorebirds |
spellingShingle |
automated telemetry departure decision migratory performance shorebirds Duijns, Sjoerd Niles, Lawrence J. Dey, Amanda Aubry, Yves Friis, Christian Koch, Stephanie Anderson, Alexandra M. Smith, Paul A. Data from: Body condition explains migratory performance of a long-distance migrant |
topic_facet |
automated telemetry departure decision migratory performance shorebirds |
description |
Body condition (i.e. relative mass after correcting for structural size) affects the behaviour of migrating birds, but how body condition affects migratory performance, timing and fitness is still largely unknown. Here, we studied the effects of relative body condition on individual departure decisions, wind selectivity, flight speed and timing of migration for a long-distance migratory shorebird, the red knot Calidris canutus rufa. By using automated VHF telemetry on a continental scale, we studied knots' migratory movements with unprecedented temporal resolution over a 3-year period. Knots with a higher relative body condition left the staging site later than birds in lower condition, yet still arrived earlier to their Arctic breeding grounds compared to knots in lower relative body condition. They accomplished this by selecting more favourable winds at departure, thereby flying faster and making shorter stops en route. Individuals with a higher relative body condition in spring migrated south up to a month later than individuals in lower condition, suggesting that individuals in better condition were more likely to have bred successfully. Moreover, individuals with a lower relative body condition in spring had a lower probability of being detected in autumn, suggestive of increased mortality. The pressure to arrive early to the breeding grounds is considered to be an important constraint of migratory behaviour and this study highlights the important influence of body condition on migratory decisions, performance and potentially fitness of migrant birds. |
format |
Article in Journal/Newspaper |
author |
Duijns, Sjoerd Niles, Lawrence J. Dey, Amanda Aubry, Yves Friis, Christian Koch, Stephanie Anderson, Alexandra M. Smith, Paul A. |
author_facet |
Duijns, Sjoerd Niles, Lawrence J. Dey, Amanda Aubry, Yves Friis, Christian Koch, Stephanie Anderson, Alexandra M. Smith, Paul A. |
author_sort |
Duijns, Sjoerd |
title |
Data from: Body condition explains migratory performance of a long-distance migrant |
title_short |
Data from: Body condition explains migratory performance of a long-distance migrant |
title_full |
Data from: Body condition explains migratory performance of a long-distance migrant |
title_fullStr |
Data from: Body condition explains migratory performance of a long-distance migrant |
title_full_unstemmed |
Data from: Body condition explains migratory performance of a long-distance migrant |
title_sort |
data from: body condition explains migratory performance of a long-distance migrant |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.157396 https://doi.org/10.5061/dryad.65t4k |
op_coverage |
North America 2014-2016 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calidris canutus Red Knot |
genre_facet |
Arctic Calidris canutus Red Knot |
op_relation |
doi:10.5061/dryad.65t4k/2 doi:10.1098/rspb.2017.1374 doi:10.5061/dryad.65t4k Duijns S, Niles LJ, Dey A, Aubry Y, Friis C, Koch S, Anderson AM, Smith PA (2017) Body condition explains migratory performance of a long-distance migrant. Proceedings of the Royal Society B 284(1866): 20171374. http://hdl.handle.net/10255/dryad.157396 |
op_doi |
https://doi.org/10.5061/dryad.65t4k https://doi.org/10.5061/dryad.65t4k/2 https://doi.org/10.1098/rspb.2017.1374 |
_version_ |
1766341084392194048 |