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    Survival and activity patterns of snowshoe hares (Lepus americanus) in interior Alaska

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    Feierabend_uaf_0006N_10024.pdf
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    Author
    Feierabend, Dashiell S.
    Chair
    Kielland, Knut
    Powell, Abby
    Committee
    Barboza, Perry
    Metadata
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    URI
    http://hdl.handle.net/11122/4518
    Abstract
    Snowshoe hare (Lepus americanus) survival depends on the interaction of habitat characteristics with numerous biological and environmental variables. In boreal regions where considerable habitat heterogeneity exists, hares balance food availability with predation risk by moving among habitats seasonally, but it is largely unknown how often they move at shorter time scales. I investigated the seasonal effects of habitat, weather, and individual hare characteristics on survival and movement in two common but fundamentally different boreal habitats. Survival was highest in summer, for hares with higher body condition, and in black spruce rather than early successional forest. Hares moved among core use areas in different habitats twice per day on average, using more open areas at night when they were presumably feeding on preferred browse. Movement rates were lowest in mid-afternoon when hares appeared to be resting under dense cover. Behavior of individuals varied greatly with some hares repeatedly moving up to 1 km between defined patches in less than 5 hours and others remaining roughly within a 1 ha area. These findings illustrate the complexity of snowshoe hare ecology in an area where habitat variation promotes daily movement of hares among radically different habitats over a few hundred meters.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 2013
    Table of Contents
    Chapter 1. Spatial and temporal patterns of survival for snowshoe hares (Lepus americanus) in interior Alaska -- Chapter 2: Movement, activity patterns, and habitat use of snowshoe hares (Lepus americanus) in interior Alaska -- General conclusions.
    Date
    2013-08
    Type
    Thesis
    Collections
    Biological Sciences

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