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Intraspecific cache pilferage in larder-hoarding red squirrels (Tamiasciurus hudsonicus) in Kluane, Yukon Open Access

Descriptions

Other title
Subject/Keyword
kleptoparasitism
Stealing
Red squirrel
Pilferage
larder-hoarding
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Donald, Jenna
Supervisor and department
Boutin, Stan
Examining committee member and department
St. Clair, Colleen Cassady
Hurd, Peter
Department
Department of Biological Sciences
Specialization

Date accepted
2010-04-28T17:58:22Z
Graduation date
2010-11
Degree
Master of Science
Degree level
Master's
Abstract
Pilfering is thought to play a role in the evolution of scatter-hoarding strategies; but is not well understood in larder-hoarding animals. I studied intraspecific pilfering in red squirrels in Kluane, YT, Canada. The purpose of this project was to estimate the natural rate of cache pilferage, and to examine variation in pilfering behaviour. Results from experimental removal of territory owners, suggested that younger squirrels with smaller food caches were more likely to pilfer when given the opportunity. Survival over-winter was dependent on the number of cones cached and pilfering squirrels were less likely to survive. Using a mark-recapture study of marked cones I found that few individuals (14%) did any pilfering and stolen cones represented only 0.3% of total cones cached. It is clear that pilfering occurs at a much lower rate in Kluane than reported for red squirrels in other regions, and is less than rates reported for scatter-hoarding species.
Language
English
Rights
License granted by Jenna Donald (jdonald@ualberta.ca) on 2010-04-28T17:17:24Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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2014-04-29T15:55:58.092+00:00
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File format: pdf (Portable Document Format)
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File size: 873454
Last modified: 2015:10:12 20:59:11-06:00
Filename: Donald_Jenna_Fall 2010.pdf
Original checksum: f43ebcdd3b4e8d8544bae1e5b82d262f
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File author: Jenna Donald
Page count: 104
File language: en-CA
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