Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt.
New legislation which entrenches regulation of the turr hunt in Newfoundland into the Migratory Birds Convention Act, will require good knowledge of thick-billed murre (Uria lomvia) population biology for proper implementation. The impact of hunting on the population is determined by factors such as...
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Université d'Ottawa / University of Ottawa
1995
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ftdatacite:10.20381/ruor-8119 2023-05-15T15:55:43+02:00 Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. Donaldson, Gary Michael. 1995 https://dx.doi.org/10.20381/ruor-8119 http://www.ruor.uottawa.ca/handle/10393/10082 unknown Université d'Ottawa / University of Ottawa Biology, Ecology. Text Thesis article-journal ScholarlyArticle 1995 ftdatacite https://doi.org/10.20381/ruor-8119 2021-11-05T12:55:41Z New legislation which entrenches regulation of the turr hunt in Newfoundland into the Migratory Birds Convention Act, will require good knowledge of thick-billed murre (Uria lomvia) population biology for proper implementation. The impact of hunting on the population is determined by factors such as total bag, season length and timing, and the age of birds killed. These in turn depend on the temporal and spatial distribution of murres of different ages and from different colonies. Birds in their first winter were recovered in greater numbers than birds from older age categories and were usually recovered earlier in the season. Recovery rates of first winter and second winter birds from Digges Island were significantly lower than those for birds of the same age from the adjacent colony on Coats Island suggesting different spatial distributions of the young birds from the two colonies. Differences in the overwintering areas for adults from Coburg Island and Cape Hay, again located closely together, differed significantly with Coburg adults recovered in greater numbers in Newfoundland while Cape Hay adults were recovered most often in Western Greenland. Using recoveries of birds banded on Coats Island, annual survival from fledging to first year was estimated at 0.53 using the program SURVIV. Survival from second to third year was estimated at 0.83, from third to fourth year was 0.74, from fourth to fifth year was 0.86. The estimate from third to fourth year was considered to be an underestimate as a result of the high mobility of third year birds at the colony. Based on these survival probabilities, survival to breeding age, using the best estimates from band recoveries and resightings was estimated at 0.27. (Abstract shortened by UMI.) Thesis Coats Island Coburg island Greenland Newfoundland thick-billed murre Uria lomvia uria DataCite Metadata Store (German National Library of Science and Technology) Coats Island ENVELOPE(-82.974,-82.974,62.620,62.620) Coburg Island ENVELOPE(-79.338,-79.338,75.940,75.940) Digges ENVELOPE(-94.130,-94.130,58.540,58.540) Greenland |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biology, Ecology. |
spellingShingle |
Biology, Ecology. Donaldson, Gary Michael. Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. |
topic_facet |
Biology, Ecology. |
description |
New legislation which entrenches regulation of the turr hunt in Newfoundland into the Migratory Birds Convention Act, will require good knowledge of thick-billed murre (Uria lomvia) population biology for proper implementation. The impact of hunting on the population is determined by factors such as total bag, season length and timing, and the age of birds killed. These in turn depend on the temporal and spatial distribution of murres of different ages and from different colonies. Birds in their first winter were recovered in greater numbers than birds from older age categories and were usually recovered earlier in the season. Recovery rates of first winter and second winter birds from Digges Island were significantly lower than those for birds of the same age from the adjacent colony on Coats Island suggesting different spatial distributions of the young birds from the two colonies. Differences in the overwintering areas for adults from Coburg Island and Cape Hay, again located closely together, differed significantly with Coburg adults recovered in greater numbers in Newfoundland while Cape Hay adults were recovered most often in Western Greenland. Using recoveries of birds banded on Coats Island, annual survival from fledging to first year was estimated at 0.53 using the program SURVIV. Survival from second to third year was estimated at 0.83, from third to fourth year was 0.74, from fourth to fifth year was 0.86. The estimate from third to fourth year was considered to be an underestimate as a result of the high mobility of third year birds at the colony. Based on these survival probabilities, survival to breeding age, using the best estimates from band recoveries and resightings was estimated at 0.27. (Abstract shortened by UMI.) |
format |
Thesis |
author |
Donaldson, Gary Michael. |
author_facet |
Donaldson, Gary Michael. |
author_sort |
Donaldson, Gary Michael. |
title |
Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. |
title_short |
Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. |
title_full |
Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. |
title_fullStr |
Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. |
title_full_unstemmed |
Winter distribution and pre-breeding survival of the thick-billed murre, Uria lomvia, from the northwestern Atlantic. Implications for management of the Newfoundland turr hunt. |
title_sort |
winter distribution and pre-breeding survival of the thick-billed murre, uria lomvia, from the northwestern atlantic. implications for management of the newfoundland turr hunt. |
publisher |
Université d'Ottawa / University of Ottawa |
publishDate |
1995 |
url |
https://dx.doi.org/10.20381/ruor-8119 http://www.ruor.uottawa.ca/handle/10393/10082 |
long_lat |
ENVELOPE(-82.974,-82.974,62.620,62.620) ENVELOPE(-79.338,-79.338,75.940,75.940) ENVELOPE(-94.130,-94.130,58.540,58.540) |
geographic |
Coats Island Coburg Island Digges Greenland |
geographic_facet |
Coats Island Coburg Island Digges Greenland |
genre |
Coats Island Coburg island Greenland Newfoundland thick-billed murre Uria lomvia uria |
genre_facet |
Coats Island Coburg island Greenland Newfoundland thick-billed murre Uria lomvia uria |
op_doi |
https://doi.org/10.20381/ruor-8119 |
_version_ |
1766391204111450112 |