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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1995
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ftunivottawa:oai:ruor.uottawa.ca:10393/10082 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. Gaston, A. J. 1995 154 p. application/pdf http://hdl.handle.net/10393/10082 https://doi.org/10.20381/ruor-8119 unknown University of Ottawa (Canada) Source: Masters Abstracts International, Volume: 34-04, page: 1495. 9780612048980 http://hdl.handle.net/10393/10082 http://dx.doi.org/10.20381/ruor-8119 Biology Ecology Thesis 1995 ftunivottawa https://doi.org/10.20381/ruor-8119 2021-01-04T17:05:45Z 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 uO Research (University of Ottawa - uOttawa) 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 |
institution |
Open Polar |
collection |
uO Research (University of Ottawa - uOttawa) |
op_collection_id |
ftunivottawa |
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.) |
author2 |
Gaston, A. J. |
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 |
University of Ottawa (Canada) |
publishDate |
1995 |
url |
http://hdl.handle.net/10393/10082 https://doi.org/10.20381/ruor-8119 |
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_relation |
Source: Masters Abstracts International, Volume: 34-04, page: 1495. 9780612048980 http://hdl.handle.net/10393/10082 http://dx.doi.org/10.20381/ruor-8119 |
op_doi |
https://doi.org/10.20381/ruor-8119 |
_version_ |
1766391204284465152 |