Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots
Animal body shrinkage appears correlated with climate warming, but the mechanism remains unclear. For an Arctic-breeding shorebird, the red knot, we demonstrate why juvenile body size at its West-African non-breeding grounds has decreased over two decades. Over this period, stable-isotope ratios sam...
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ftniozdata:doi:10.25850/nioz/7b.b.fg 2023-12-10T09:44:53+01:00 Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots Oortwijn, Tim Tim Oortwijn NIOZ Royal Netherlands Institute for Sea Research in cooperation with Utrecht University 2023-11-08 https://doi.org/10.25850/nioz/7b.b.fg unknown NIOZ https://doi.org/10.25850/nioz/7b.b.fg Earth and Environmental Sciences climate change mismatch body shrinkage shorebird snowmelt 2023 ftniozdata https://doi.org/10.25850/nioz/7b.b.fg 2023-11-15T23:13:54Z Animal body shrinkage appears correlated with climate warming, but the mechanism remains unclear. For an Arctic-breeding shorebird, the red knot, we demonstrate why juvenile body size at its West-African non-breeding grounds has decreased over two decades. Over this period, stable-isotope ratios sampled from juvenile feathers - grown as chicks on their Arctic breeding grounds 9,000 kilometers away - reveal a decline in the dietary contribution of crane flies, their key food source on the tundra. With crane fly phenology advancing with earlier snowmelt dates but red knot breeding timing not, this has caused an increasing mismatch with the demands of growing chicks, leading to slower growth and smaller final body sizes. Our results imply that body shrinkage may come about rapidly via plasticity during development. Other/Unknown Material Arctic Climate change Red Knot Tundra NIOZ Dataverse (Royal Netherlands Institute for Sea Research) Arctic |
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Open Polar |
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NIOZ Dataverse (Royal Netherlands Institute for Sea Research) |
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unknown |
topic |
Earth and Environmental Sciences climate change mismatch body shrinkage shorebird snowmelt |
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Earth and Environmental Sciences climate change mismatch body shrinkage shorebird snowmelt Oortwijn, Tim Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots |
topic_facet |
Earth and Environmental Sciences climate change mismatch body shrinkage shorebird snowmelt |
description |
Animal body shrinkage appears correlated with climate warming, but the mechanism remains unclear. For an Arctic-breeding shorebird, the red knot, we demonstrate why juvenile body size at its West-African non-breeding grounds has decreased over two decades. Over this period, stable-isotope ratios sampled from juvenile feathers - grown as chicks on their Arctic breeding grounds 9,000 kilometers away - reveal a decline in the dietary contribution of crane flies, their key food source on the tundra. With crane fly phenology advancing with earlier snowmelt dates but red knot breeding timing not, this has caused an increasing mismatch with the demands of growing chicks, leading to slower growth and smaller final body sizes. Our results imply that body shrinkage may come about rapidly via plasticity during development. |
author2 |
Tim Oortwijn NIOZ Royal Netherlands Institute for Sea Research in cooperation with Utrecht University |
author |
Oortwijn, Tim |
author_facet |
Oortwijn, Tim |
author_sort |
Oortwijn, Tim |
title |
Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots |
title_short |
Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots |
title_full |
Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots |
title_fullStr |
Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots |
title_full_unstemmed |
Demand-resource mismatch in the high-Arctic explains two decades of body shrinkage in red knots |
title_sort |
demand-resource mismatch in the high-arctic explains two decades of body shrinkage in red knots |
publisher |
NIOZ |
publishDate |
2023 |
url |
https://doi.org/10.25850/nioz/7b.b.fg |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Red Knot Tundra |
genre_facet |
Arctic Climate change Red Knot Tundra |
op_relation |
https://doi.org/10.25850/nioz/7b.b.fg |
op_doi |
https://doi.org/10.25850/nioz/7b.b.fg |
_version_ |
1784888106688708608 |