Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland
Although populations of Common Terns and Arctic Terns (Sterna hirundo, S. paradisaea) have been decreasing and gull (Larus spp.) populations have been increasing in eastern North America for more than 50 years, little is known about the population trends of these species in Newfoundland. Here we pre...
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1993
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crcansciencepubl:10.1139/z93-214 2023-12-17T10:25:58+01:00 Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland Howes, Lesley-Anne Montevecchi, William A. 1993 http://dx.doi.org/10.1139/z93-214 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-214 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 71, issue 8, page 1516-1520 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1993 crcansciencepubl https://doi.org/10.1139/z93-214 2023-11-19T13:38:52Z Although populations of Common Terns and Arctic Terns (Sterna hirundo, S. paradisaea) have been decreasing and gull (Larus spp.) populations have been increasing in eastern North America for more than 50 years, little is known about the population trends of these species in Newfoundland. Here we present data, spanning two decades, on the population trends and interactions of terns and gulls on five islands in Gros Morne National Park in western Newfoundland. Tern populations in this region are increasing despite interactions with gulls and low productivity. Immigration from disturbed colonies elsewhere is suggested as a possible source of the increase. Gull populations have also increased substantially since the early 1970s and closely follow local production of fisheries offal, as indicated by landing trends in the area. Implications for gull management strategies are discussed. Article in Journal/Newspaper Arctic Gros Morne National Park Newfoundland Sterna hirundo Canadian Science Publishing (via Crossref) Arctic Gros Morne National Park ENVELOPE(-57.531,-57.531,49.613,49.613) Five Islands ENVELOPE(-69.415,-69.415,60.184,60.184) Canadian Journal of Zoology 71 8 1516 1520 |
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 Howes, Lesley-Anne Montevecchi, William A. Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Although populations of Common Terns and Arctic Terns (Sterna hirundo, S. paradisaea) have been decreasing and gull (Larus spp.) populations have been increasing in eastern North America for more than 50 years, little is known about the population trends of these species in Newfoundland. Here we present data, spanning two decades, on the population trends and interactions of terns and gulls on five islands in Gros Morne National Park in western Newfoundland. Tern populations in this region are increasing despite interactions with gulls and low productivity. Immigration from disturbed colonies elsewhere is suggested as a possible source of the increase. Gull populations have also increased substantially since the early 1970s and closely follow local production of fisheries offal, as indicated by landing trends in the area. Implications for gull management strategies are discussed. |
format |
Article in Journal/Newspaper |
author |
Howes, Lesley-Anne Montevecchi, William A. |
author_facet |
Howes, Lesley-Anne Montevecchi, William A. |
author_sort |
Howes, Lesley-Anne |
title |
Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland |
title_short |
Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland |
title_full |
Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland |
title_fullStr |
Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland |
title_full_unstemmed |
Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland |
title_sort |
population trends and interactions among terns and gulls in gros morne national park, newfoundland |
publisher |
Canadian Science Publishing |
publishDate |
1993 |
url |
http://dx.doi.org/10.1139/z93-214 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-214 |
long_lat |
ENVELOPE(-57.531,-57.531,49.613,49.613) ENVELOPE(-69.415,-69.415,60.184,60.184) |
geographic |
Arctic Gros Morne National Park Five Islands |
geographic_facet |
Arctic Gros Morne National Park Five Islands |
genre |
Arctic Gros Morne National Park Newfoundland Sterna hirundo |
genre_facet |
Arctic Gros Morne National Park Newfoundland Sterna hirundo |
op_source |
Canadian Journal of Zoology volume 71, issue 8, page 1516-1520 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z93-214 |
container_title |
Canadian Journal of Zoology |
container_volume |
71 |
container_issue |
8 |
container_start_page |
1516 |
op_container_end_page |
1520 |
_version_ |
1785577636282499072 |