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Theses and Dissertations

This collection contains theses and dissertations of graduate students of the University of Alberta. The collection contains a very large number of theses electronically available that were granted from 1947 to 2009, 90% of theses granted from 2009-2014, and 100% of theses granted from April 2014 to the present (as long as the theses are not under temporary embargo by agreement with the Faculty of Graduate and Postdoctoral Studies). IMPORTANT NOTE: To conduct a comprehensive search of all UofA theses granted and in University of Alberta Libraries collections, search the library catalogue at www.library.ualberta.ca - you may search by Author, Title, Keyword, or search by Department.
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Results for "Probability Distributions on a Circle"

Departments: Department of Biological Sciences

  • Calving behavior of boreal caribou in a multi-predator, multi-use landscape

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    Fall 2015

    DeMars, Craig A

    The boreal ecotype of woodland caribou (Rangifer tarandus caribou) is federally listed as Threatened due to population declines throughout its distribution. High mortality rates of neonate calves (≤ 4 weeks old) due to predation are a key demographic factor contributing to population declines and

    of boreal caribou with parturient females dispersing widely on the landscape, a behaviour hypothesized to reduce predation risk. I assessed potential evolutionary drivers of dispersion using simulation analyses that tracked caribou-wolf encounters during the calving season. I specifically assessed

    relating maternal selection and use of resources to the probability of neonate survival. These analyses included spatially explicit covariates of predator-specific risk. Surprisingly, variation in landscape disturbance had minimal effect on calf survival; rather, survival was best explained by predation

  • Aversive conditioning of grizzly bears produces high probabilities of retreat from human-bear conflict locations

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    Spring 2024

    Edwards, Claire

    bear age. Conditioning events most often targeted bears that were feeding on natural vegetation (72%) and conditioning locations were most often at roadsides (65%) and campgrounds (13%). Among 3,613 events on 39 marked grizzly bears when a response to technician arrival was recorded, the average

    or projectiles were used in the previous event, when bears were resting or feeding, and with increasing bear age. Among 4,959 events on 46 marked individuals where a response to conditioning was recorded, bears almost always retreated from conditioning technicians (93%) and rarely approached them

    Kananaskis Country, female bears are disproportionately drawn to feed on natural vegetation, where they can avoid conspecifics via use of a human shield. Conditioning results suggest that bears are more likely to retreat from tools with higher aversive intensity and that they learn over time to avoid areas

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