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    Demography of Yellow-Bellied Marmont Populations

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    ArmitageK_1974.pdf (1.981Mb)
    Issue Date
    1974-11-01
    Author
    Armitage, Kenneth
    Downhower, Jerry F.
    Publisher
    Ecological Society of America
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Marmot (Marmota flaviventris) populations are colonial or satellite. The number of adults of colonial populations is relatively stable; fluctuations occur primarily because of changes in numbers of young and yearlings. Population trends among five colonial populations are dissimilar. Satellite populations are unstable and reproduce at a lower rate than do colonial populations. Satellite marmots are shorter resident than colonial marmots. Both colonial and satellite females usually are longer resident than males. All adult colonial males are 41% of adult colonial females are recruited from other places; all satellite adults are recruited from other places. Losses of colonial marmots are attributed primarily to mortality during hibernation and emigration. Predation appears to be a minor source of mortality of colonial marmots, but may be of greater significance to satellite populations. Demographic relationships of individual colonies appear to be density-independent. Dispersal of colonial animals occurs primarily among yearlings, which have a higher expectation of reaching sexual maturity than young have. The major cause of dispersal is social pressure, but social stress is not simply density-dependent. The colonial social organization is more adaptive than the more nearly solitary (=satellite).
    Description
    This is the publisher's version, also available electronically from http://www.jstor.org/stable/info/1935452
    URI
    http://hdl.handle.net/1808/15196
    DOI
    https://doi.org/10.2307/1935452
    ISSN
    0012-9658
    Collections
    • Ecology and Evolutionary Biology Scholarly Works [1389]
    Citation
    Armitage, Kenneth; Downhower, Jerry F. (1974). "Demography of yellow bellied marmot populations." Ecology, 55(6):1233-1245. http://dx.doi.org/10.2307/1935452

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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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