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UBC Theses and Dissertations
UBC Theses and Dissertations
Qualities of individuals in a replacement stock of blue grouse Low, David J.
Abstract
An entire breeding population of blue grouse (Dendraqapus obscurus) was removed in 1970 from an area of 900 acres of second-growth forest land on central Vancouver Island. The population had been declining since 1954. A nearby area with its grouse population intact was retained as a control. The artificially removed population was completely replaced at the first breeding season, - almost completely by yearling birds, which is evidence for there being a surplus of individuals in the spring. This new population resembled the original residents and other grouse in surrounding areas. The use of behaviour evaluation techniques revealed that the recolonizing population was as aggressive as the original residents had been. The removal experiment gave strong evidence that blue grouse space themselves out through territorial behaviour.
Item Metadata
Title |
Qualities of individuals in a replacement stock of blue grouse
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1975
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Description |
An entire breeding population of blue grouse (Dendraqapus obscurus) was removed in 1970 from an area of 900 acres of second-growth forest land on central Vancouver Island. The population had been declining since 1954. A nearby area with its grouse population intact was retained as a control. The artificially removed population was completely replaced at the first breeding season, - almost completely by yearling birds, which is evidence for there being a surplus of individuals
in the spring. This new population resembled the original residents and other grouse in surrounding areas. The use of behaviour evaluation techniques revealed that the recolonizing population was as aggressive as the original residents had been. The removal experiment gave strong evidence that blue grouse space themselves out through territorial behaviour.
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-01-28
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Provider |
Vancouver : University of British Columbia Library
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Rights |
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.
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DOI |
10.14288/1.0093223
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
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.