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    Two new species of shrew-rats (Rhynchomys: Muridae; Rodentia) from Luzon Island, Philippines

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    Issue Date
    2019
    Author
    Rickart, Eric A.
    Balete, Danilo S.
    Timm, Robert M.
    Alviola, Phillip A.
    Esselstyn, Jacob A.
    Heaney, Lawrence R.
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    The murine genus Rhynchomys includes the large-bodied Philippine “shrew-rats,” highly specialized members of the vermivorous clade of Philippine murids. Four species are recognized, all of which are endemic to Luzon Island: R. soricoides from mountains within the Central Cordillera, R. isarogensis from Mt. Isarog on the Bicol Peninsula, R. banahao from Mt. Banahaw in south-central Luzon, and R. tapulao from Mt. Tapulao in the Zambales Mountains. Field surveys in 2006 and 2008 revealed two additional populations of Rhynchomys, one from Mt. Labo (1544 m), a dormant stratovolcano at the base of the Bicol Peninsula, the other from Mt. Mingan (1901 m), the highest peak in the central Sierra Madre of east-central Luzon. Assessment of external and craniodental features of available specimens from throughout Luzon support our description of the populations on Mt. Labo and Mt. Mingan as new species. All species of Rhynchomys are restricted to high-elevation, montane, and mossy forest habitats, separated by intervening lowlands. These discoveries highlight the importance of isolated highland areas in the historical diversification of Southeast Asian murines, and as current centers of endemism.
    URI
    http://hdl.handle.net/1808/29417
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    • Ecology & Evolutionary Biology Scholarly Works [1516]
    Citation
    Rickart, E. A., D. S. Balete, R. M. Timm, P. A. Alviola, J. A. Esselstyn, and L. R. Heaney. 2019. Two new species of shrew-rats (Rhynchomys: Muridae; Rodentia) from Luzon Island, Philippines. Journal of Mammalogy 100(4):1112–1129.

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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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