A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers?
Making a detour can be advantageous to a migrating bird if fuel-deposition rates at stopover sites along the detour are considerably higher than at stopover sites along a more direct route. One example of an extensive migratory detour is that of the Sharp-tailed Sandpiper (Calidris acuminata), of wh...
Published in: | The Condor |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press
2011
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Online Access: | https://lup.lub.lu.se/record/1926092 https://doi.org/10.1525/cond.2011.090171 |
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ftulundlup:oai:lup.lub.lu.se:30800c82-13df-41d5-861c-7def3dae60b8 2023-05-15T18:48:37+02:00 A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? Lindström, Åke Gill, Robert E., Jr. Jamieson, Sarah E. McCaffery, Brian Wennerberg, Liv Wikelski, Martin Klaassen, Marcel 2011 https://lup.lub.lu.se/record/1926092 https://doi.org/10.1525/cond.2011.090171 eng eng Oxford University Press https://lup.lub.lu.se/record/1926092 http://dx.doi.org/10.1525/cond.2011.090171 wos:000288736400013 scopus:79957684219 The Condor: ornithological applications; 113(1), pp 129-139 (2011) ISSN: 0010-5422 Ecology Calidris acuminata migration waders body mass fat stores predation age-segregated migration Alaska contributiontojournal/article info:eu-repo/semantics/article text 2011 ftulundlup https://doi.org/10.1525/cond.2011.090171 2023-02-01T23:33:04Z Making a detour can be advantageous to a migrating bird if fuel-deposition rates at stopover sites along the detour are considerably higher than at stopover sites along a more direct route. One example of an extensive migratory detour is that of the Sharp-tailed Sandpiper (Calidris acuminata), of which large numbers of juveniles are found during fall migration in western Alaska. These birds take a detour of 1500-3400 km from the most direct route between their natal range in northeastern Siberia and nonbreeding areas in Australia. We studied the autumnal fueling rates and fuel loads of 357 Sharp-tailed Sandpipers captured in western Alaska. In early September the birds increased in mass at a rate of only 0.5% of lean body mass day(-1). Later in September, the rate of mass increase was about 6% of lean body mass day(-1), among the highest values found among similar-sized shorebirds around the world. Some individuals more than doubled their body mass because of fuel deposition, allowing non-stop flight of between 7100 and 9800 km, presumably including a trans-oceanic flight to the southern hemisphere. Our observations indicated that predator attacks were rare in our study area, adding another potential benefit of the detour. We conclude that the most likely reason for the Alaskan detour is that it allows juvenile Sharp-tailed Sand-pipers to put on large fuel stores at exceptionally high rates. Article in Journal/Newspaper Alaska Siberia Lund University Publications (LUP) Detour ENVELOPE(-63.913,-63.913,-65.021,-65.021) The Detour ENVELOPE(-134.704,-134.704,62.733,62.733) The Condor 113 1 129 139 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Calidris acuminata migration waders body mass fat stores predation age-segregated migration Alaska |
spellingShingle |
Ecology Calidris acuminata migration waders body mass fat stores predation age-segregated migration Alaska Lindström, Åke Gill, Robert E., Jr. Jamieson, Sarah E. McCaffery, Brian Wennerberg, Liv Wikelski, Martin Klaassen, Marcel A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? |
topic_facet |
Ecology Calidris acuminata migration waders body mass fat stores predation age-segregated migration Alaska |
description |
Making a detour can be advantageous to a migrating bird if fuel-deposition rates at stopover sites along the detour are considerably higher than at stopover sites along a more direct route. One example of an extensive migratory detour is that of the Sharp-tailed Sandpiper (Calidris acuminata), of which large numbers of juveniles are found during fall migration in western Alaska. These birds take a detour of 1500-3400 km from the most direct route between their natal range in northeastern Siberia and nonbreeding areas in Australia. We studied the autumnal fueling rates and fuel loads of 357 Sharp-tailed Sandpipers captured in western Alaska. In early September the birds increased in mass at a rate of only 0.5% of lean body mass day(-1). Later in September, the rate of mass increase was about 6% of lean body mass day(-1), among the highest values found among similar-sized shorebirds around the world. Some individuals more than doubled their body mass because of fuel deposition, allowing non-stop flight of between 7100 and 9800 km, presumably including a trans-oceanic flight to the southern hemisphere. Our observations indicated that predator attacks were rare in our study area, adding another potential benefit of the detour. We conclude that the most likely reason for the Alaskan detour is that it allows juvenile Sharp-tailed Sand-pipers to put on large fuel stores at exceptionally high rates. |
format |
Article in Journal/Newspaper |
author |
Lindström, Åke Gill, Robert E., Jr. Jamieson, Sarah E. McCaffery, Brian Wennerberg, Liv Wikelski, Martin Klaassen, Marcel |
author_facet |
Lindström, Åke Gill, Robert E., Jr. Jamieson, Sarah E. McCaffery, Brian Wennerberg, Liv Wikelski, Martin Klaassen, Marcel |
author_sort |
Lindström, Åke |
title |
A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? |
title_short |
A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? |
title_full |
A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? |
title_fullStr |
A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? |
title_full_unstemmed |
A Puzzling Migratory Detour: Are Fueling Conditions In Alaska Driving The Movement Of Juvenile Sharp-Tailed Sandpipers? |
title_sort |
puzzling migratory detour: are fueling conditions in alaska driving the movement of juvenile sharp-tailed sandpipers? |
publisher |
Oxford University Press |
publishDate |
2011 |
url |
https://lup.lub.lu.se/record/1926092 https://doi.org/10.1525/cond.2011.090171 |
long_lat |
ENVELOPE(-63.913,-63.913,-65.021,-65.021) ENVELOPE(-134.704,-134.704,62.733,62.733) |
geographic |
Detour The Detour |
geographic_facet |
Detour The Detour |
genre |
Alaska Siberia |
genre_facet |
Alaska Siberia |
op_source |
The Condor: ornithological applications; 113(1), pp 129-139 (2011) ISSN: 0010-5422 |
op_relation |
https://lup.lub.lu.se/record/1926092 http://dx.doi.org/10.1525/cond.2011.090171 wos:000288736400013 scopus:79957684219 |
op_doi |
https://doi.org/10.1525/cond.2011.090171 |
container_title |
The Condor |
container_volume |
113 |
container_issue |
1 |
container_start_page |
129 |
op_container_end_page |
139 |
_version_ |
1766241797165547520 |