Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized.
Castor canadensis (beaver) build dams and lodges which have profound effects on locan ecosystems. C. canadensis forage trees from distances near and far to build dams. One would expect that such energy intensive work would place constraints on characteristics of trees chosen. In this study, we exami...
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ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/54746 2023-08-20T04:05:44+02:00 Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. Shah, Rakhi Biological Station, University of Michigan Ann Arbor Wilderness State Park Canada Goose Pond Grapevine Trail UMBS Station 1997 264673 bytes 3144 bytes application/pdf text/plain http://hdl.handle.net/2027.42/54746 unknown Graph http://hdl.handle.net/2027.42/54746 General Ecology MAMMALS VERTEBRATES CASTOR BEAVER OPTIMAL FORAGING TREE SPECIES SIZE ACER POPULUS BEHAVIOR Natural Resource and Environment Science Working Paper 1997 ftumdeepblue 2023-07-31T20:30:03Z Castor canadensis (beaver) build dams and lodges which have profound effects on locan ecosystems. C. canadensis forage trees from distances near and far to build dams. One would expect that such energy intensive work would place constraints on characteristics of trees chosen. In this study, we examined predictions of the optimal foraging theory. We studied preference of a tree genera, proportion utilized, and size and selectivity at various distances. We collected tree genera, circumference at gnawing height, and distance from shoreline for trees in our study area. In coniferous dominant canopies such as Wilderness State Park, aspen was found to be preferred tree for harvesting. In deciduous forests such as Grapevine Point, sugar maple was found to be the preferred species. At Wilderness State Park, diameter was correlated to distance. ""Far"" trees were had a greater girth than those closer to the shoreline. At Grapevine Point, no correlation between diameter and distance was found. There was no difference statistically in the number of trees harvested in ""near"" versus ""far"" locations at Wilderness State Park. At Grapevine Point, there was a statistical difference in the number of ""near"" versys ""far"" trees harvested. This study could have been further elucidated if tree genera among canopies of the two sites were similar. Further investigations of beaver foraging in relation to optimal foraging theory should consider factors such as potential tree chemical defense when attempting to quantify relationships between size and distance from the shoreline. http://deepblue.lib.umich.edu/bitstream/2027.42/54746/1/3187.pdf Description of 3187.pdf : Access restricted to on-site users at the U-M Biological Station. Report Canada Goose University of Michigan: Deep Blue Canada Goose Pond ENVELOPE(-53.881,-53.881,49.567,49.567) |
institution |
Open Polar |
collection |
University of Michigan: Deep Blue |
op_collection_id |
ftumdeepblue |
language |
unknown |
topic |
General Ecology MAMMALS VERTEBRATES CASTOR BEAVER OPTIMAL FORAGING TREE SPECIES SIZE ACER POPULUS BEHAVIOR Natural Resource and Environment Science |
spellingShingle |
General Ecology MAMMALS VERTEBRATES CASTOR BEAVER OPTIMAL FORAGING TREE SPECIES SIZE ACER POPULUS BEHAVIOR Natural Resource and Environment Science Shah, Rakhi Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
topic_facet |
General Ecology MAMMALS VERTEBRATES CASTOR BEAVER OPTIMAL FORAGING TREE SPECIES SIZE ACER POPULUS BEHAVIOR Natural Resource and Environment Science |
description |
Castor canadensis (beaver) build dams and lodges which have profound effects on locan ecosystems. C. canadensis forage trees from distances near and far to build dams. One would expect that such energy intensive work would place constraints on characteristics of trees chosen. In this study, we examined predictions of the optimal foraging theory. We studied preference of a tree genera, proportion utilized, and size and selectivity at various distances. We collected tree genera, circumference at gnawing height, and distance from shoreline for trees in our study area. In coniferous dominant canopies such as Wilderness State Park, aspen was found to be preferred tree for harvesting. In deciduous forests such as Grapevine Point, sugar maple was found to be the preferred species. At Wilderness State Park, diameter was correlated to distance. ""Far"" trees were had a greater girth than those closer to the shoreline. At Grapevine Point, no correlation between diameter and distance was found. There was no difference statistically in the number of trees harvested in ""near"" versus ""far"" locations at Wilderness State Park. At Grapevine Point, there was a statistical difference in the number of ""near"" versys ""far"" trees harvested. This study could have been further elucidated if tree genera among canopies of the two sites were similar. Further investigations of beaver foraging in relation to optimal foraging theory should consider factors such as potential tree chemical defense when attempting to quantify relationships between size and distance from the shoreline. http://deepblue.lib.umich.edu/bitstream/2027.42/54746/1/3187.pdf Description of 3187.pdf : Access restricted to on-site users at the U-M Biological Station. |
author2 |
Biological Station, University of Michigan Ann Arbor |
format |
Report |
author |
Shah, Rakhi |
author_facet |
Shah, Rakhi |
author_sort |
Shah, Rakhi |
title |
Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
title_short |
Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
title_full |
Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
title_fullStr |
Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
title_full_unstemmed |
Castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
title_sort |
castor canadensis: optimal foraging in relation to preference, distance, and size of trees utilized. |
publishDate |
1997 |
url |
http://hdl.handle.net/2027.42/54746 |
op_coverage |
Wilderness State Park Canada Goose Pond Grapevine Trail UMBS Station |
long_lat |
ENVELOPE(-53.881,-53.881,49.567,49.567) |
geographic |
Canada Goose Pond |
geographic_facet |
Canada Goose Pond |
genre |
Canada Goose |
genre_facet |
Canada Goose |
op_relation |
Graph http://hdl.handle.net/2027.42/54746 |
_version_ |
1774716444310765568 |