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    Habitat Partitioning by Two Sympatric Species of Chipmunk (Genus: Neotamias) in the Warner Mountains of California

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    Subject
    Sympatric; Neotamias; Habitat Partitioning
    Author
    Poffenroth, Mary; Matson, John O.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Issue
    scas/vol106/iss3; 3
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/9502
    Abstract
    In the Warner Mountains of California, two sympatric species of chipmunk partition their habitat primarily through the mechanism of competitive exclusion by social dominance and aggressive interactions. Forests are optimal habitats for both Neotamias amoenus and N. minimus. In this study N. amoenus actively excludes N. minimus from the forest through successful aggressive interspecific interactions, leaving N. minimus to occupy primarily the arid sagebrush scrub. Neotamias amoenus was observed to be the more social species. Neotamias minimus appears to lack the level of social structure of N. amoenus and was not observed to win any aggressive encounters. Neotamias minimus avoids interaction with N. amoenus.
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