Variations in the fur productivity of northern British Columbia in relation to some environmental factors

The yearly reports of 155 registered trap lines in northern and northeastern British Columbia have been analysed and grouped into seven distinct areas exhibiting physiographic and vegetational differences. The trap line data hate been reduced to production figures, indicating for each species, the n...

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Main Author: Edwards, Roger York
Language:English
Published: University of British Columbia 2012
Subjects:
Online Access:http://hdl.handle.net/2429/41323
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spelling ndltd-UBC-oai-circle.library.ubc.ca-2429-413232018-01-05T17:50:33Z Variations in the fur productivity of northern British Columbia in relation to some environmental factors Edwards, Roger York Fur-bearing animals -- British Columbia The yearly reports of 155 registered trap lines in northern and northeastern British Columbia have been analysed and grouped into seven distinct areas exhibiting physiographic and vegetational differences. The trap line data hate been reduced to production figures, indicating for each species, the number of square miles necessary to produce one pelt. For most species these production figures have been found to be highly variable among the seven sub-areas. An analysis of the region with respect to providing suitable environment for the various species has suggested reasons for production variability. The species coyote, wolf, weasel, squirrel,and muskrat appear to be taken in numbers inversely proportional to the size of trap lines. The, size of lines, in turn, appears to be an expression of the human population density, habitat modification, depletion of populations of expensive fur species, and other factors. The fur species fox, marten, fisher, mink, wolverine, lynx and beaver appear to be taken in numbers proportional to the abundance of the species concerned. Highest production appears to result from the most favourable environmental conditions. Raccoon, otter, skunk, and cougar are not abundant,and the number of pelts produced is low. In Appendix B, the value of fur is examined for a limited area about Fort Nelson. When the value is calculated to compare with wood value from a forest with a 100 year rotation, the fur has a gross value of over eight million dollars. Science, Faculty of Zoology, Department of Graduate 2012-03-10T00:34:15Z 2012-03-10T00:34:15Z 1950 Text Thesis/Dissertation http://hdl.handle.net/2429/41323 eng For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. University of British Columbia
collection NDLTD
language English
sources NDLTD
topic Fur-bearing animals -- British Columbia
spellingShingle Fur-bearing animals -- British Columbia
Edwards, Roger York
Variations in the fur productivity of northern British Columbia in relation to some environmental factors
description The yearly reports of 155 registered trap lines in northern and northeastern British Columbia have been analysed and grouped into seven distinct areas exhibiting physiographic and vegetational differences. The trap line data hate been reduced to production figures, indicating for each species, the number of square miles necessary to produce one pelt. For most species these production figures have been found to be highly variable among the seven sub-areas. An analysis of the region with respect to providing suitable environment for the various species has suggested reasons for production variability. The species coyote, wolf, weasel, squirrel,and muskrat appear to be taken in numbers inversely proportional to the size of trap lines. The, size of lines, in turn, appears to be an expression of the human population density, habitat modification, depletion of populations of expensive fur species, and other factors. The fur species fox, marten, fisher, mink, wolverine, lynx and beaver appear to be taken in numbers proportional to the abundance of the species concerned. Highest production appears to result from the most favourable environmental conditions. Raccoon, otter, skunk, and cougar are not abundant,and the number of pelts produced is low. In Appendix B, the value of fur is examined for a limited area about Fort Nelson. When the value is calculated to compare with wood value from a forest with a 100 year rotation, the fur has a gross value of over eight million dollars. === Science, Faculty of === Zoology, Department of === Graduate
author Edwards, Roger York
author_facet Edwards, Roger York
author_sort Edwards, Roger York
title Variations in the fur productivity of northern British Columbia in relation to some environmental factors
title_short Variations in the fur productivity of northern British Columbia in relation to some environmental factors
title_full Variations in the fur productivity of northern British Columbia in relation to some environmental factors
title_fullStr Variations in the fur productivity of northern British Columbia in relation to some environmental factors
title_full_unstemmed Variations in the fur productivity of northern British Columbia in relation to some environmental factors
title_sort variations in the fur productivity of northern british columbia in relation to some environmental factors
publisher University of British Columbia
publishDate 2012
url http://hdl.handle.net/2429/41323
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