Space use during parturition influences caribou calf survial in Newfoundland

Bonar, Maegwin (2017) Space use during parturition influences caribou calf survial in Newfoundland. Masters thesis, Memorial University of Newfoundland.

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In social species the choice to aggregate in space is hypothesized to affect survival and reproduction (i.e., fitness). My research addresses the hypotheses provided by the Ideal Free Distribution (IFD) and the Geometry of the Selfish Herd (GSH) that could explain how an individual can maximize their fitness by choosing to aggregate, or choosing to disaggregate during the period where offspring are most vulnerable. I used woodland caribou (Rangifer tarandus) in Newfoundland as a model system to test the influence of aggregation on calf survival. In support of this effort, I employed a new movement-based approach to measure parturition and calf survival for adult females. I found empirical support for both the IFD and GSH frameworks and introduce an innovative movementbased approach to inferring parturition and neonate survival in caribou.

Item Type: Thesis (Masters)
Item ID: 13181
Additional Information: Includes bibliographical references.
Keywords: aggregation, parturition, caribou, movement
Department(s): Science, Faculty of > Biology
Date: November 2017
Date Type: Submission
Library of Congress Subject Heading: Caribou -- Parturition -- Newfoundland and Labrador; Social behavior in animals -- Newfoundland and Labrador

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