How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle?
Winter north of the Arctic circle in northern Norway is colder, windier and there is less solar radiation than in eastern Scotland, at a latitude 13 degrees further south. We predicted from equations derived from heated taxidermic mounts that the maintenance metabolism (Basal Metabolic Rate plus ext...
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ftunigroningenpu:oai:pure.rug.nl:publications/8c5c24a8-b718-42a4-82ae-839e132554d1 2024-06-02T07:59:42+00:00 How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? Summers, R.W. Piersma, T. Strann, K.B. Wiersma, P. 1998 https://hdl.handle.net/11370/8c5c24a8-b718-42a4-82ae-839e132554d1 https://research.rug.nl/en/publications/8c5c24a8-b718-42a4-82ae-839e132554d1 eng eng https://research.rug.nl/en/publications/8c5c24a8-b718-42a4-82ae-839e132554d1 info:eu-repo/semantics/restrictedAccess Summers , R W , Piersma , T , Strann , K B & Wiersma , P 1998 , ' How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? ' , Ardea , vol. 86 , no. 1 , pp. 51-58 . Calidris maritima storage strategies body composition metabolic rate energetics foraging ENERGY-EXPENDITURE MASS SHOREBIRDS DUNLINS BRITAIN WEIGHT SIZE DIET article 1998 ftunigroningenpu 2024-05-07T18:08:31Z Winter north of the Arctic circle in northern Norway is colder, windier and there is less solar radiation than in eastern Scotland, at a latitude 13 degrees further south. We predicted from equations derived from heated taxidermic mounts that the maintenance metabolism (Basal Metabolic Rate plus extra costs for thermoregulation) for Purple Sandpipers Calidris maritima wintering in these climatic conditions in Norway would be 1.3 times greater than for Purple Sandpipers of the same size in Scotland. Adaptations to the more extreme environment and greater energy requirements were investigated by measuring differences in the body size and composition of Purple Sandpipers from northern Norway and Scotland. As predicted, the Norwegian Purple Sandpipers had more fat stores, but these were still at relatively low levels (6.5% of fresh body mass) compared with other waders wintering in cold climates. The Norwegian birds were slightly larger so will probably have a relatively lower thermal conductance than Scottish birds. Also, there were large differences in the relative sizes of the intestine (1.5 times heavier in Norwegian birds) and liver (1.3 times heavier). This suggests Bat Purple Sandpipers wintering in Norway eat and process a greater amount of food than the birds in Scotland. Ln this way, the additional energy demands for thermoregulation in a colder environment are probably met. Article in Journal/Newspaper Arctic Arctic Calidris maritima Northern Norway University of Groningen research database Arctic Norway |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Calidris maritima storage strategies body composition metabolic rate energetics foraging ENERGY-EXPENDITURE MASS SHOREBIRDS DUNLINS BRITAIN WEIGHT SIZE DIET |
spellingShingle |
Calidris maritima storage strategies body composition metabolic rate energetics foraging ENERGY-EXPENDITURE MASS SHOREBIRDS DUNLINS BRITAIN WEIGHT SIZE DIET Summers, R.W. Piersma, T. Strann, K.B. Wiersma, P. How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? |
topic_facet |
Calidris maritima storage strategies body composition metabolic rate energetics foraging ENERGY-EXPENDITURE MASS SHOREBIRDS DUNLINS BRITAIN WEIGHT SIZE DIET |
description |
Winter north of the Arctic circle in northern Norway is colder, windier and there is less solar radiation than in eastern Scotland, at a latitude 13 degrees further south. We predicted from equations derived from heated taxidermic mounts that the maintenance metabolism (Basal Metabolic Rate plus extra costs for thermoregulation) for Purple Sandpipers Calidris maritima wintering in these climatic conditions in Norway would be 1.3 times greater than for Purple Sandpipers of the same size in Scotland. Adaptations to the more extreme environment and greater energy requirements were investigated by measuring differences in the body size and composition of Purple Sandpipers from northern Norway and Scotland. As predicted, the Norwegian Purple Sandpipers had more fat stores, but these were still at relatively low levels (6.5% of fresh body mass) compared with other waders wintering in cold climates. The Norwegian birds were slightly larger so will probably have a relatively lower thermal conductance than Scottish birds. Also, there were large differences in the relative sizes of the intestine (1.5 times heavier in Norwegian birds) and liver (1.3 times heavier). This suggests Bat Purple Sandpipers wintering in Norway eat and process a greater amount of food than the birds in Scotland. Ln this way, the additional energy demands for thermoregulation in a colder environment are probably met. |
format |
Article in Journal/Newspaper |
author |
Summers, R.W. Piersma, T. Strann, K.B. Wiersma, P. |
author_facet |
Summers, R.W. Piersma, T. Strann, K.B. Wiersma, P. |
author_sort |
Summers, R.W. |
title |
How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? |
title_short |
How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? |
title_full |
How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? |
title_fullStr |
How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? |
title_full_unstemmed |
How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? |
title_sort |
how do purple sandpipers calidris maritima survive the winter north of the arctic circle? |
publishDate |
1998 |
url |
https://hdl.handle.net/11370/8c5c24a8-b718-42a4-82ae-839e132554d1 https://research.rug.nl/en/publications/8c5c24a8-b718-42a4-82ae-839e132554d1 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Arctic Calidris maritima Northern Norway |
genre_facet |
Arctic Arctic Calidris maritima Northern Norway |
op_source |
Summers , R W , Piersma , T , Strann , K B & Wiersma , P 1998 , ' How do Purple Sandpipers Calidris maritima survive the winter north of the Arctic circle? ' , Ardea , vol. 86 , no. 1 , pp. 51-58 . |
op_relation |
https://research.rug.nl/en/publications/8c5c24a8-b718-42a4-82ae-839e132554d1 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1800743816317108224 |