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...
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ftdeakinunifig:oai:figshare.com:article/21001993 2023-05-15T15:48:17+02:00 A puzzling migratory detour : are fueling conditions in Alaska driving the movement of juvenile sharp-tailed sandpipers? A Lindstrom R Gill Jr. S Jamieson B McCaffery L Wennerberg M Wikelski Marcel Klaassen 2011-02-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30040419 https://figshare.com/articles/journal_contribution/A_puzzling_migratory_detour_are_fueling_conditions_in_Alaska_driving_the_movement_of_juvenile_sharp-tailed_sandpipers_/21001993 unknown http://hdl.handle.net/10536/DRO/DU:30040419 https://figshare.com/articles/journal_contribution/A_puzzling_migratory_detour_are_fueling_conditions_in_Alaska_driving_the_movement_of_juvenile_sharp-tailed_sandpipers_/21001993 All Rights Reserved Ecology Zoology calidris acuminate migration waders body mass fat stores predation age-segregated migration Alaska Science & Technology Life Sciences & Biomedicine Ornithology Calidris acuminata DUNLINS CALIDRIS-ALPINA WESTERN SANDPIPERS AUTUMN MIGRATION STOPOVER SITE BIRDS MASS FAT FLIGHTS Text Journal contribution 2011 ftdeakinunifig 2022-11-17T22:18:48Z 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 nonstop 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 Sandpipers to put on large fuel stores at exceptionally high rates. Other Non-Article Part of Journal/Newspaper Calidris alpina Alaska Siberia DRO - Deakin Research Online Detour ENVELOPE(-63.913,-63.913,-65.021,-65.021) The Detour ENVELOPE(-134.704,-134.704,62.733,62.733) |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Ecology Zoology calidris acuminate migration waders body mass fat stores predation age-segregated migration Alaska Science & Technology Life Sciences & Biomedicine Ornithology Calidris acuminata DUNLINS CALIDRIS-ALPINA WESTERN SANDPIPERS AUTUMN MIGRATION STOPOVER SITE BIRDS MASS FAT FLIGHTS |
spellingShingle |
Ecology Zoology calidris acuminate migration waders body mass fat stores predation age-segregated migration Alaska Science & Technology Life Sciences & Biomedicine Ornithology Calidris acuminata DUNLINS CALIDRIS-ALPINA WESTERN SANDPIPERS AUTUMN MIGRATION STOPOVER SITE BIRDS MASS FAT FLIGHTS A Lindstrom R Gill Jr. S Jamieson B McCaffery L Wennerberg M Wikelski Marcel Klaassen A puzzling migratory detour : are fueling conditions in Alaska driving the movement of juvenile sharp-tailed sandpipers? |
topic_facet |
Ecology Zoology calidris acuminate migration waders body mass fat stores predation age-segregated migration Alaska Science & Technology Life Sciences & Biomedicine Ornithology Calidris acuminata DUNLINS CALIDRIS-ALPINA WESTERN SANDPIPERS AUTUMN MIGRATION STOPOVER SITE BIRDS MASS FAT FLIGHTS |
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 nonstop 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 Sandpipers to put on large fuel stores at exceptionally high rates. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
A Lindstrom R Gill Jr. S Jamieson B McCaffery L Wennerberg M Wikelski Marcel Klaassen |
author_facet |
A Lindstrom R Gill Jr. S Jamieson B McCaffery L Wennerberg M Wikelski Marcel Klaassen |
author_sort |
A Lindstrom |
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? |
publishDate |
2011 |
url |
http://hdl.handle.net/10536/DRO/DU:30040419 https://figshare.com/articles/journal_contribution/A_puzzling_migratory_detour_are_fueling_conditions_in_Alaska_driving_the_movement_of_juvenile_sharp-tailed_sandpipers_/21001993 |
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 |
Calidris alpina Alaska Siberia |
genre_facet |
Calidris alpina Alaska Siberia |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30040419 https://figshare.com/articles/journal_contribution/A_puzzling_migratory_detour_are_fueling_conditions_in_Alaska_driving_the_movement_of_juvenile_sharp-tailed_sandpipers_/21001993 |
op_rights |
All Rights Reserved |
_version_ |
1766383280348725248 |