Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen?
Sanderlings Calidris alba occur worldwide along sandy beaches and have a wide range of non-breeding locations in different climate zones. Previous studies clearly indicated that ambient temperatures have profound effects on daily energy expenditures of Sanderlings. In this study we investigated the...
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Online Access: | https://hdl.handle.net/11370/6832ad5d-fcb6-4721-8091-7f46be7b1b02 https://research.rug.nl/en/publications/6832ad5d-fcb6-4721-8091-7f46be7b1b02 http://www.scopus.com/inward/record.url?scp=76649134870&partnerID=8YFLogxK |
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ftunigroningenpu:oai:pure.rug.nl:publications/6832ad5d-fcb6-4721-8091-7f46be7b1b02 2024-06-02T08:04:44+00:00 Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? Why do some Sanderlings Calidris alba winter in the Wadden Sea while others prefer tropical beaches? Reneerkens, Jeroen Grond, Kirsten Koomson, Edward Ntiamoa-Baidu, Yaa Piersma, Theunis 2009-12-01 https://hdl.handle.net/11370/6832ad5d-fcb6-4721-8091-7f46be7b1b02 https://research.rug.nl/en/publications/6832ad5d-fcb6-4721-8091-7f46be7b1b02 http://www.scopus.com/inward/record.url?scp=76649134870&partnerID=8YFLogxK nld dut https://research.rug.nl/en/publications/6832ad5d-fcb6-4721-8091-7f46be7b1b02 info:eu-repo/semantics/restrictedAccess Reneerkens , J , Grond , K , Koomson , E , Ntiamoa-Baidu , Y & Piersma , T 2009 , ' Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? ' , Limosa , vol. 82 , no. 3-4 , pp. 141-148 . article 2009 ftunigroningenpu 2024-05-07T20:32:07Z Sanderlings Calidris alba occur worldwide along sandy beaches and have a wide range of non-breeding locations in different climate zones. Previous studies clearly indicated that ambient temperatures have profound effects on daily energy expenditures of Sanderlings. In this study we investigated the foraging ecology of Sanderlings on beaches near Esiama, Ghana and on the Wadden Sea island of Vlieland, The Netherlands. The diet was very different at the two locations. In Vlieland the birds fed predominantly on the polychaete Scolelepis squamata whereas a small shellfish Donax rugosus was taken in Esiama (Fig. 4,5). The latter prey item was very abundant in Esiama where a band of 2-14 m width containing densities of 5,700-14,300 individuals per m 2 occurred. This resulted in caloric energy intake rates of 8 kJ/h foraging time in Vlieland and 130 kJ/h in Ghana. On Vlieland the birds spent on average 79% of their time foraging and in Esiama this was only 36% and most time (58 %) was spent resting (Fig. 2). We argue, however, that during the long resting breaks on roosts, Sanderlings in Ghana were in fact digesting and emptying their gut and intestines from indigestable shell remains. During future studies we plan to study annual and seasonal survival of sanderlings wintering at different latitudes in relation to disease risk and prédation probability. Article in Journal/Newspaper Calidris alba University of Groningen research database |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
Dutch |
description |
Sanderlings Calidris alba occur worldwide along sandy beaches and have a wide range of non-breeding locations in different climate zones. Previous studies clearly indicated that ambient temperatures have profound effects on daily energy expenditures of Sanderlings. In this study we investigated the foraging ecology of Sanderlings on beaches near Esiama, Ghana and on the Wadden Sea island of Vlieland, The Netherlands. The diet was very different at the two locations. In Vlieland the birds fed predominantly on the polychaete Scolelepis squamata whereas a small shellfish Donax rugosus was taken in Esiama (Fig. 4,5). The latter prey item was very abundant in Esiama where a band of 2-14 m width containing densities of 5,700-14,300 individuals per m 2 occurred. This resulted in caloric energy intake rates of 8 kJ/h foraging time in Vlieland and 130 kJ/h in Ghana. On Vlieland the birds spent on average 79% of their time foraging and in Esiama this was only 36% and most time (58 %) was spent resting (Fig. 2). We argue, however, that during the long resting breaks on roosts, Sanderlings in Ghana were in fact digesting and emptying their gut and intestines from indigestable shell remains. During future studies we plan to study annual and seasonal survival of sanderlings wintering at different latitudes in relation to disease risk and prédation probability. |
format |
Article in Journal/Newspaper |
author |
Reneerkens, Jeroen Grond, Kirsten Koomson, Edward Ntiamoa-Baidu, Yaa Piersma, Theunis |
spellingShingle |
Reneerkens, Jeroen Grond, Kirsten Koomson, Edward Ntiamoa-Baidu, Yaa Piersma, Theunis Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? |
author_facet |
Reneerkens, Jeroen Grond, Kirsten Koomson, Edward Ntiamoa-Baidu, Yaa Piersma, Theunis |
author_sort |
Reneerkens, Jeroen |
title |
Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? |
title_short |
Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? |
title_full |
Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? |
title_fullStr |
Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? |
title_full_unstemmed |
Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? |
title_sort |
waarom overwinteren sommige drieteenstrandlopers in de waddenzee terwijl andere tropische stranden verkiezen? |
publishDate |
2009 |
url |
https://hdl.handle.net/11370/6832ad5d-fcb6-4721-8091-7f46be7b1b02 https://research.rug.nl/en/publications/6832ad5d-fcb6-4721-8091-7f46be7b1b02 http://www.scopus.com/inward/record.url?scp=76649134870&partnerID=8YFLogxK |
genre |
Calidris alba |
genre_facet |
Calidris alba |
op_source |
Reneerkens , J , Grond , K , Koomson , E , Ntiamoa-Baidu , Y & Piersma , T 2009 , ' Waarom overwinteren sommige Drieteenstrandlopers in de Waddenzee terwijl andere tropische stranden verkiezen? ' , Limosa , vol. 82 , no. 3-4 , pp. 141-148 . |
op_relation |
https://research.rug.nl/en/publications/6832ad5d-fcb6-4721-8091-7f46be7b1b02 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1800749382565363712 |