The winter activity and movements, winter diet, and breeding biology of the fisher (Martes pennanti) in southeastern Manitoba

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dc.contributor.author Leonard, Richard David en_US
dc.date.accessioned 2009-12-01T20:20:28Z
dc.date.available 2009-12-01T20:20:28Z
dc.date.issued 1981 en_US
dc.identifier ocm72784490 en_US
dc.identifier.uri http://hdl.handle.net/1993/3481
dc.description.abstract From May 1975 to June 1977 aspects of the ecology of the fisher were studied in the field by use of radio-telemetry, tracking, and track observations. Information on reproduction, food habits, age and sex distributions, and physical condition was gathered from analysis of 195 trapper-caught fisher carcasses collected from four areas durinq the winters of 1972-73 to 1971-78. During the winters of 1975-76 and 1976-77 the upper levels of the snow cover affected fisher locomotion and extensiveness of activity. Chanqes in the use of gaits and cover types were qualitatively correlated with physical variations in the snow cover. An almost complete depression of fisher activity occurred in the intensive tracking unit during periods in January and February, 1975-76 and January, 1976-77 when the area was covered by extremely soft snow. Effects of temperature, prey availability, and social behavior could not be separated absolutely from the effects of snow cover, but application of snow factors into an established ecological energetics model developed to estimate energy requirements of free-ranging fishers indicated that soft snow could greatly increase energy expenditure of active fishers. The response of fishers to snow cover was believed to be unique for boreal Martes. Information from age class structure and radio-telemetry indicated that the juveniles moved more extensively than adults during winter... en_US
dc.format.extent xviii, 181 leaves : en_US
dc.format.extent 7508708 bytes
dc.format.mimetype application/pdf
dc.language en en_US
dc.language.iso en_US
dc.rights The reproduction of this thesis has been made available by authority of the copyright owner solely for the purpose of private study and research, and may only be reproduced and copied as permitted by copyright laws or with express written authorization from the copyright owner. en_US
dc.rights info:eu-repo/semantics/openAccess
dc.title The winter activity and movements, winter diet, and breeding biology of the fisher (Martes pennanti) in southeastern Manitoba en_US
dc.type info:eu-repo/semantics/masterThesis
dc.degree.discipline Zoology en_US
dc.degree.level Master of Science (M.Sc.) en_US

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