Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada
During the summers of 1981 and 1982, feeding ecology was studied in migrating populations of Red-necked Phalaropes (Phalaropus lobatus) at their late summer – early fall staging ground in the Quoddy region of the Bay of Fundy (44°55′ – 45°00′ N, 66°54′–66°59′ W). This species was particularly abunda...
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Canadian Science Publishing
1985
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Online Access: | http://dx.doi.org/10.1139/z85-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/z85-159 |
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crcansciencepubl:10.1139/z85-159 2023-12-17T10:28:27+01:00 Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada Mercier, F. M. Gaskin, D. E. 1985 http://dx.doi.org/10.1139/z85-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/z85-159 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 63, issue 5, page 1062-1067 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1985 crcansciencepubl https://doi.org/10.1139/z85-159 2023-11-19T13:38:55Z During the summers of 1981 and 1982, feeding ecology was studied in migrating populations of Red-necked Phalaropes (Phalaropus lobatus) at their late summer – early fall staging ground in the Quoddy region of the Bay of Fundy (44°55′ – 45°00′ N, 66°54′–66°59′ W). This species was particularly abundant during August 1982 when 5 000 to 20 000/km 2 were present in the study area at the peak of occupation. Calanus finmarchicus was both the major prey item and the most plentiful zooplankton species in the area in which the phalaropes fed (mean density, 117 individuals/m 2 ). The birds were consistently found in sectors of the study area corresponding to maximum C. finmarchicus concentrations, made readily available at the surface by upwelling activity. The phalaropes fed almost exclusively on this species, which made up 88.6% of the total number of prey items found in the stomachs; smaller copepods, seeds, and insects made up the rest, with a size limit for ingested prey of 6 mm. The birds fed by pecking constantly at the surface of the water while swimming in a sinusoidal pattern; this differs markedly from the spinning behavior observed near the breeding grounds. Article in Journal/Newspaper Calanus finmarchicus Phalaropus lobatus Copepods Canadian Science Publishing (via Crossref) Canada Canadian Journal of Zoology 63 5 1062 1067 |
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 Mercier, F. M. Gaskin, D. E. Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
During the summers of 1981 and 1982, feeding ecology was studied in migrating populations of Red-necked Phalaropes (Phalaropus lobatus) at their late summer – early fall staging ground in the Quoddy region of the Bay of Fundy (44°55′ – 45°00′ N, 66°54′–66°59′ W). This species was particularly abundant during August 1982 when 5 000 to 20 000/km 2 were present in the study area at the peak of occupation. Calanus finmarchicus was both the major prey item and the most plentiful zooplankton species in the area in which the phalaropes fed (mean density, 117 individuals/m 2 ). The birds were consistently found in sectors of the study area corresponding to maximum C. finmarchicus concentrations, made readily available at the surface by upwelling activity. The phalaropes fed almost exclusively on this species, which made up 88.6% of the total number of prey items found in the stomachs; smaller copepods, seeds, and insects made up the rest, with a size limit for ingested prey of 6 mm. The birds fed by pecking constantly at the surface of the water while swimming in a sinusoidal pattern; this differs markedly from the spinning behavior observed near the breeding grounds. |
format |
Article in Journal/Newspaper |
author |
Mercier, F. M. Gaskin, D. E. |
author_facet |
Mercier, F. M. Gaskin, D. E. |
author_sort |
Mercier, F. M. |
title |
Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada |
title_short |
Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada |
title_full |
Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada |
title_fullStr |
Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada |
title_full_unstemmed |
Feeding ecology of migrating Red-necked Phalaropes ( Phalaropus lobatus ) in the Quoddy region, New Brunswick, Canada |
title_sort |
feeding ecology of migrating red-necked phalaropes ( phalaropus lobatus ) in the quoddy region, new brunswick, canada |
publisher |
Canadian Science Publishing |
publishDate |
1985 |
url |
http://dx.doi.org/10.1139/z85-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/z85-159 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Calanus finmarchicus Phalaropus lobatus Copepods |
genre_facet |
Calanus finmarchicus Phalaropus lobatus Copepods |
op_source |
Canadian Journal of Zoology volume 63, issue 5, page 1062-1067 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z85-159 |
container_title |
Canadian Journal of Zoology |
container_volume |
63 |
container_issue |
5 |
container_start_page |
1062 |
op_container_end_page |
1067 |
_version_ |
1785580560203120640 |