Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China
We monitored numbers of Red Knots (Calidris canutus) staging in Bohai Bay, China (39 degrees 02'N, 118 degrees 15'E) on northward migration. Knots were identified to subspecies, and we systematically searched for colour-banded birds from the non-breeding grounds. We modelled migratory turn...
Published in: | Emu - Austral Ornithology |
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Language: | English |
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2010
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Online Access: | https://hdl.handle.net/11370/4931c63d-29fb-42cb-ad9b-db0eda68e42c https://research.rug.nl/en/publications/4931c63d-29fb-42cb-ad9b-db0eda68e42c https://doi.org/10.1071/MU10024 https://pure.rug.nl/ws/files/6755401/2010EmuRogers.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/4931c63d-29fb-42cb-ad9b-db0eda68e42c 2024-06-02T08:04:47+00:00 Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China Rogers, Danny I. Yang, Hong-Yan Hassell, Chris J. Boyle, Adrian N. Rogers, Ken G. Chen, Bing Zhang, Zheng-Wang Piersma, Theunis 2010 application/pdf https://hdl.handle.net/11370/4931c63d-29fb-42cb-ad9b-db0eda68e42c https://research.rug.nl/en/publications/4931c63d-29fb-42cb-ad9b-db0eda68e42c https://doi.org/10.1071/MU10024 https://pure.rug.nl/ws/files/6755401/2010EmuRogers.pdf eng eng https://research.rug.nl/en/publications/4931c63d-29fb-42cb-ad9b-db0eda68e42c info:eu-repo/semantics/openAccess Rogers , D I , Yang , H-Y , Hassell , C J , Boyle , A N , Rogers , K G , Chen , B , Zhang , Z-W & Piersma , T 2010 , ' Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China ' , Emu , vol. 110 , no. 4 , pp. 307-315 . https://doi.org/10.1071/MU10024 BREEDING GROUNDS PREY QUALITY WADDEN SEA MIGRATION SHOREBIRDS STOPOVER MECHANISM CHOICE RATES JUNE article 2010 ftunigroningenpu https://doi.org/10.1071/MU10024 2024-05-07T18:45:20Z We monitored numbers of Red Knots (Calidris canutus) staging in Bohai Bay, China (39 degrees 02'N, 118 degrees 15'E) on northward migration. Knots were identified to subspecies, and we systematically searched for colour-banded birds from the non-breeding grounds. We modelled migratory turnover, and revised estimates of flyway population using recently published counts from the non-breeding grounds. Two Russian-breeding subspecies occurred at our study site: C. c. rogersi (migrating to Chukotka), and C. c. piersmai (migrating to the New Siberian Islands); they co-occur on non-breeding grounds in Australia and New Zealand, but differ markedly in timing of migration. We conservatively estimate that our study site, comprising only 20 km of coastline, was used by over 45% of the combined world population of adult C. c. rogersi and C. c. piersmai - a conclusion supported by the independent data on frequency of resighting of colour-banded birds from north-western Australia and New Zealand. Much of this vital staging area is now being destroyed through construction of the Caofedian Industrial Zone and more westerly developments, which comprise only some of the many tidal flat 'reclamation' projects in the region. Preservation of the remaining tidal flats of Bohai Bay is essential to the conservation of Red Knots in the East Asian-Australasian Flyway. Article in Journal/Newspaper Calidris canutus Chukotka New Siberian Islands University of Groningen research database New Siberian Islands ENVELOPE(142.000,142.000,75.000,75.000) New Zealand Emu - Austral Ornithology 110 4 307 315 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
BREEDING GROUNDS PREY QUALITY WADDEN SEA MIGRATION SHOREBIRDS STOPOVER MECHANISM CHOICE RATES JUNE |
spellingShingle |
BREEDING GROUNDS PREY QUALITY WADDEN SEA MIGRATION SHOREBIRDS STOPOVER MECHANISM CHOICE RATES JUNE Rogers, Danny I. Yang, Hong-Yan Hassell, Chris J. Boyle, Adrian N. Rogers, Ken G. Chen, Bing Zhang, Zheng-Wang Piersma, Theunis Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China |
topic_facet |
BREEDING GROUNDS PREY QUALITY WADDEN SEA MIGRATION SHOREBIRDS STOPOVER MECHANISM CHOICE RATES JUNE |
description |
We monitored numbers of Red Knots (Calidris canutus) staging in Bohai Bay, China (39 degrees 02'N, 118 degrees 15'E) on northward migration. Knots were identified to subspecies, and we systematically searched for colour-banded birds from the non-breeding grounds. We modelled migratory turnover, and revised estimates of flyway population using recently published counts from the non-breeding grounds. Two Russian-breeding subspecies occurred at our study site: C. c. rogersi (migrating to Chukotka), and C. c. piersmai (migrating to the New Siberian Islands); they co-occur on non-breeding grounds in Australia and New Zealand, but differ markedly in timing of migration. We conservatively estimate that our study site, comprising only 20 km of coastline, was used by over 45% of the combined world population of adult C. c. rogersi and C. c. piersmai - a conclusion supported by the independent data on frequency of resighting of colour-banded birds from north-western Australia and New Zealand. Much of this vital staging area is now being destroyed through construction of the Caofedian Industrial Zone and more westerly developments, which comprise only some of the many tidal flat 'reclamation' projects in the region. Preservation of the remaining tidal flats of Bohai Bay is essential to the conservation of Red Knots in the East Asian-Australasian Flyway. |
format |
Article in Journal/Newspaper |
author |
Rogers, Danny I. Yang, Hong-Yan Hassell, Chris J. Boyle, Adrian N. Rogers, Ken G. Chen, Bing Zhang, Zheng-Wang Piersma, Theunis |
author_facet |
Rogers, Danny I. Yang, Hong-Yan Hassell, Chris J. Boyle, Adrian N. Rogers, Ken G. Chen, Bing Zhang, Zheng-Wang Piersma, Theunis |
author_sort |
Rogers, Danny I. |
title |
Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China |
title_short |
Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China |
title_full |
Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China |
title_fullStr |
Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China |
title_full_unstemmed |
Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China |
title_sort |
red knots ( calidris canutus piersmai and c. c. rogersi ) depend on a small threatened staging area in bohai bay, china |
publishDate |
2010 |
url |
https://hdl.handle.net/11370/4931c63d-29fb-42cb-ad9b-db0eda68e42c https://research.rug.nl/en/publications/4931c63d-29fb-42cb-ad9b-db0eda68e42c https://doi.org/10.1071/MU10024 https://pure.rug.nl/ws/files/6755401/2010EmuRogers.pdf |
long_lat |
ENVELOPE(142.000,142.000,75.000,75.000) |
geographic |
New Siberian Islands New Zealand |
geographic_facet |
New Siberian Islands New Zealand |
genre |
Calidris canutus Chukotka New Siberian Islands |
genre_facet |
Calidris canutus Chukotka New Siberian Islands |
op_source |
Rogers , D I , Yang , H-Y , Hassell , C J , Boyle , A N , Rogers , K G , Chen , B , Zhang , Z-W & Piersma , T 2010 , ' Red Knots ( Calidris canutus piersmai and C. c. rogersi ) depend on a small threatened staging area in Bohai Bay, China ' , Emu , vol. 110 , no. 4 , pp. 307-315 . https://doi.org/10.1071/MU10024 |
op_relation |
https://research.rug.nl/en/publications/4931c63d-29fb-42cb-ad9b-db0eda68e42c |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1071/MU10024 |
container_title |
Emu - Austral Ornithology |
container_volume |
110 |
container_issue |
4 |
container_start_page |
307 |
op_container_end_page |
315 |
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1800749438567710720 |