POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE
As a result of crop planting for waterfowl, numbers of eastern greater sandhill cranes (Grus canadensis tabida) staging and overwintering at the Hiwassee Wildlife Refuge in eastern Tennessee have sharply increased over the last 30-40 years. Peak numbers of wintering cranes have reached 14,000, and t...
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ftunivnebraskali:oai:digitalcommons.unl.edu:nacwgproc-1093 2023-11-12T04:15:26+01:00 POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE ABORN, DAVID A. 2010-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/nacwgproc/115 https://digitalcommons.unl.edu/context/nacwgproc/article/1093/viewcontent/Aborn___Possible_competition.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/nacwgproc/115 https://digitalcommons.unl.edu/context/nacwgproc/article/1093/viewcontent/Aborn___Possible_competition.pdf Proceedings of the North American Crane Workshop competition Grus canadensis tabida Hiwassee Wildlife Refuge sandhill cranes Tennessee waterfowl Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology text 2010 ftunivnebraskali 2023-10-30T09:51:40Z As a result of crop planting for waterfowl, numbers of eastern greater sandhill cranes (Grus canadensis tabida) staging and overwintering at the Hiwassee Wildlife Refuge in eastern Tennessee have sharply increased over the last 30-40 years. Peak numbers of wintering cranes have reached 14,000, and this large increase in crane numbers raises the possibility that they may be competing with waterfowl for food and space. I examined broad-scale changes in waterfowl numbers using Christmas Bird Count data, as well as small-scale changes using observations of waterfowl numbers and locations in relation to cranes on individual days. Preliminary results indicate that declines in Canada goose (Branta canadensis) numbers do not seem to be related to the increase in cranes, and while numbers of other waterfowl species have not shown changes, some species tend to remain farther from shore, and hence deeper water, when there are more cranes present. Waterfowl at Hiwassee may not be able be to deposit as much fat for inclement winter weather, spring migration, or breeding. Competition between cranes and waterfowl increases the need for wildlife managers to provide more food and habitat for both cranes and waterfowl. Text Branta canadensis Canada Goose University of Nebraska-Lincoln: DigitalCommons@UNL Canada |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
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competition Grus canadensis tabida Hiwassee Wildlife Refuge sandhill cranes Tennessee waterfowl Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology |
spellingShingle |
competition Grus canadensis tabida Hiwassee Wildlife Refuge sandhill cranes Tennessee waterfowl Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology ABORN, DAVID A. POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE |
topic_facet |
competition Grus canadensis tabida Hiwassee Wildlife Refuge sandhill cranes Tennessee waterfowl Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology |
description |
As a result of crop planting for waterfowl, numbers of eastern greater sandhill cranes (Grus canadensis tabida) staging and overwintering at the Hiwassee Wildlife Refuge in eastern Tennessee have sharply increased over the last 30-40 years. Peak numbers of wintering cranes have reached 14,000, and this large increase in crane numbers raises the possibility that they may be competing with waterfowl for food and space. I examined broad-scale changes in waterfowl numbers using Christmas Bird Count data, as well as small-scale changes using observations of waterfowl numbers and locations in relation to cranes on individual days. Preliminary results indicate that declines in Canada goose (Branta canadensis) numbers do not seem to be related to the increase in cranes, and while numbers of other waterfowl species have not shown changes, some species tend to remain farther from shore, and hence deeper water, when there are more cranes present. Waterfowl at Hiwassee may not be able be to deposit as much fat for inclement winter weather, spring migration, or breeding. Competition between cranes and waterfowl increases the need for wildlife managers to provide more food and habitat for both cranes and waterfowl. |
format |
Text |
author |
ABORN, DAVID A. |
author_facet |
ABORN, DAVID A. |
author_sort |
ABORN, DAVID A. |
title |
POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE |
title_short |
POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE |
title_full |
POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE |
title_fullStr |
POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE |
title_full_unstemmed |
POSSIBLE COMPETITION BETWEEN WATERFOWL AND SANDHILL CRANES AT HIWASSEE WILDLIFE REFUGE, TENNESSEE |
title_sort |
possible competition between waterfowl and sandhill cranes at hiwassee wildlife refuge, tennessee |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2010 |
url |
https://digitalcommons.unl.edu/nacwgproc/115 https://digitalcommons.unl.edu/context/nacwgproc/article/1093/viewcontent/Aborn___Possible_competition.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Branta canadensis Canada Goose |
genre_facet |
Branta canadensis Canada Goose |
op_source |
Proceedings of the North American Crane Workshop |
op_relation |
https://digitalcommons.unl.edu/nacwgproc/115 https://digitalcommons.unl.edu/context/nacwgproc/article/1093/viewcontent/Aborn___Possible_competition.pdf |
_version_ |
1782332733665574912 |