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    Uinta Ground Squirrel Demography: Is Body Mass a Better Categorical Variable Than Age?

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    Slade_1987.pdf (15.63Mb)
    Issue Date
    1987-06-01
    Author
    Sauer, John R.
    Slade, Norman A.
    Publisher
    Ecological Society of America
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Rights
    Copyright by the Ecological Society of America
    Metadata
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    Abstract
    We compared the relative impact of age and body mass on fecundity and survival in a population of Uinta ground squirrels, and modeled the population using bodymass classes as stage categories in Lefkovitch stage transition matrices. Body mass was a better predictor of survival than was age, and was nearly as good a predictor of litter size. Mass-based stage transition matrices provided results similar to age-based transition matrices, but also indicated that larger and subsequently more fecund young were a consequence of a population reduction. We believe that mass-based analysis of ground squirrel populations is a viable alternative to traditional age-based analyses. Body mass is easy to measure in small-mammal populations and is linked to a variety of life-history characteristics.
    URI
    http://hdl.handle.net/1808/17940
    DOI
    https://doi.org/10.2307/1938469
    Collections
    • Ecology & Evolutionary Biology Scholarly Works [1493]
    Citation
    Sauer, John R.; Slade, Norman A. (1987). "Uinta Ground Squirrel Demography: Is Body Mass a Better Categorical Variable Than Age?" Ecology, 68(3):642-650. http://dx.doi.org/10.2307/1938469.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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