High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk
Migratory shorebirds wintering or staging on ocean coasts collect at high tide on roosting sites that remain above the flood line. However, some species of Calidris sandpipers spend the high-tide interval in flight over the ocean. In the winters of 2006–2012, the characteristics of high-tide flight...
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Online Access: | http://dx.doi.org/10.1139/cjz-2012-0213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2012-0213 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2012-0213 |
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crcansciencepubl:10.1139/cjz-2012-0213 2023-12-17T10:28:28+01:00 High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk Dekker, Dick 2013 http://dx.doi.org/10.1139/cjz-2012-0213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2012-0213 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2012-0213 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 91, issue 1, page 25-29 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2013 crcansciencepubl https://doi.org/10.1139/cjz-2012-0213 2023-11-19T13:38:18Z Migratory shorebirds wintering or staging on ocean coasts collect at high tide on roosting sites that remain above the flood line. However, some species of Calidris sandpipers spend the high-tide interval in flight over the ocean. In the winters of 2006–2012, the characteristics of high-tide flight by Dunlins (Calidris alpina (L., 1758)) were studied at Boundary Bay, British Columbia, Canada. At wind speeds of 1–6 m/s, flocks of Dunlins remained airborne over the ocean for up to 4 h at altitudes of >30 m. If winds were >10 m/s, the Dunlins coursed low over the waves. Ambient temperature was a significant determinant in the occurrence and duration of high-tide flight. In October and November, the Dunlins spent just as much time in flight before as after high tide, but in January, flight duration was 43% shorter after high tide than before high tide. The mean January temperatures were significantly lower than in October and November. The Dunlins were hunted by Peregrine Falcons (Falco peregrinus Tunstall, 1771), which captured 81 prey in 494 attacks. The maximum kill rate of 0.28 captures per hour of observation was recorded in the second hour after high tide, which suggests that predation risk is greatest for Dunlins that return early from high-tide flight. Article in Journal/Newspaper Calidris alpina Falco peregrinus Canadian Science Publishing (via Crossref) Canada British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Boundary Bay ENVELOPE(-101.934,-101.934,60.034,60.034) Canadian Journal of Zoology 91 1 25 29 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Dekker, Dick High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Migratory shorebirds wintering or staging on ocean coasts collect at high tide on roosting sites that remain above the flood line. However, some species of Calidris sandpipers spend the high-tide interval in flight over the ocean. In the winters of 2006–2012, the characteristics of high-tide flight by Dunlins (Calidris alpina (L., 1758)) were studied at Boundary Bay, British Columbia, Canada. At wind speeds of 1–6 m/s, flocks of Dunlins remained airborne over the ocean for up to 4 h at altitudes of >30 m. If winds were >10 m/s, the Dunlins coursed low over the waves. Ambient temperature was a significant determinant in the occurrence and duration of high-tide flight. In October and November, the Dunlins spent just as much time in flight before as after high tide, but in January, flight duration was 43% shorter after high tide than before high tide. The mean January temperatures were significantly lower than in October and November. The Dunlins were hunted by Peregrine Falcons (Falco peregrinus Tunstall, 1771), which captured 81 prey in 494 attacks. The maximum kill rate of 0.28 captures per hour of observation was recorded in the second hour after high tide, which suggests that predation risk is greatest for Dunlins that return early from high-tide flight. |
format |
Article in Journal/Newspaper |
author |
Dekker, Dick |
author_facet |
Dekker, Dick |
author_sort |
Dekker, Dick |
title |
High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
title_short |
High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
title_full |
High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
title_fullStr |
High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
title_full_unstemmed |
High-tide flight by wintering Dunlins ( Calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
title_sort |
high-tide flight by wintering dunlins ( calidris alpina ): a weather-dependent trade-off between energy loss and predation risk |
publisher |
Canadian Science Publishing |
publishDate |
2013 |
url |
http://dx.doi.org/10.1139/cjz-2012-0213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2012-0213 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2012-0213 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-101.934,-101.934,60.034,60.034) |
geographic |
Canada British Columbia Boundary Bay |
geographic_facet |
Canada British Columbia Boundary Bay |
genre |
Calidris alpina Falco peregrinus |
genre_facet |
Calidris alpina Falco peregrinus |
op_source |
Canadian Journal of Zoology volume 91, issue 1, page 25-29 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2012-0213 |
container_title |
Canadian Journal of Zoology |
container_volume |
91 |
container_issue |
1 |
container_start_page |
25 |
op_container_end_page |
29 |
_version_ |
1785580583975387136 |