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    Small mammal faunal stasis in Natural Trap Cave (Pleistocene-Holocene), Bighorn Mountains, Wyoming

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    Williams_ku_0099D_10366_DATA_1.pdf (3.534Mb)
    Issue Date
    2009-01-01
    Author
    Williams, Daniel Ryan
    Publisher
    University of Kansas
    Format
    252 pages
    Type
    Dissertation
    Degree Level
    Ph.D.
    Discipline
    Ecology & Evolutionary Biology
    Rights
    This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
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    Abstract
    Paleocommunity behavior through time is a topic of fierce debate in paleoecology, one with ramifications for the general study of macroevolution. The predominant viewpoint is that communities are ephemeral objects during the Quaternary that easily fall apart, but evidence exists that suggests geography and spatial scale plays a role. Natural Trap Cave is a prime testing ground for observing how paleocommunities react to large-scale climate change. Natural Trap Cave has a continuous faunal record (100 ka-recent) that spans the last glacial cycle, large portions of which are replicated in local rockshelters, which is used here to test for local causes of stasis. The Quaternary fauna of North America is relatively well sampled and dated, so the influence of spatial scale and biogeography on local community change can also be tested for. Here I use the herbivorous and omnivorous small mammal fauna (50%). The likely cause for the local stasis in Natural Trap Cave is distance from the modern northern and southern edges of the member taxa distributions, a reflection of their broad range of adaptation. North-south oriented mountain barriers preserve the integrity of the regional fauna by allowing habitat-tracking down-elevation. These mountain barriers also limit east-west dispersal from neighboring faunal provinces.
    URI
    http://hdl.handle.net/1808/5259
    Collections
    • Dissertations [4474]
    • Ecology & Evolutionary Biology Dissertations and Theses [349]

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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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