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    Patterns of avian diversification in Borneo: The case of the endemic Mountain Black-eye (Chlorocharis emiliae)

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    MoyleR_Auk_131(1)86.pdf (822.2Kb)
    Issue Date
    2014-01-01
    Author
    Gawin, Dency F.
    Rahman, Mustafa Abdul
    Ramji, Mohamad Fizl Sidq
    Smith, Brian Tilston
    Lim, Haw Chuan
    Moyle, Robert G.
    Sheldon, Frederick H.
    Publisher
    University of California Press
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    The Mountain Black-eye (Chlorocharis emiliae) is an endemic white-eye (Zosteropidae) of Borneo with a unique “sky island” distribution. We compared mitochondrial ND2, ND3, Cytb, and control region DNA sequences (2,194 nucleotides) to study the phylogeographic relationships of five populations of this species that span its range: Mounts Kinabalu, Trus Madi, Murud, Mulu, and Pueh. These comparisons showed that black-eyes are divided into two main clades that correspond generally to subspecific morphological groups: one in Sabah, Malaysia (Kinabalu and Trus Madi), and one in Sarawak, Malaysia (Murud, Mulu, and Pueh). The genetic and morphologic subdivision of black-eyes disputes the expected merging of populations during the Last Glacial Maximum (LGM), when montane forest presumably expanded and provided the opportunity for currently isolated populations to intermingle. Instead the genetic aging of black-eye populations indicates they diversified long before the LGM, and either did not expand sufficiently in range during the LGM to reach one another, or were reproductively isolated by the time of the LGM and thus prevented from interbreeding. Moreover, the subdivision between black-eyes in Sabah and Sarawak means that this species (and probably several other montane species) has a phylogeographic structure remarkably similar to Borneo's lowland bird populations, which are presumed to have evolved under different paleo-geographic conditions. The similar phylogeographic pattern found in both montane and lowland species requires that we rethink the causes of bird population diversification on the island of Borneo.
    URI
    http://hdl.handle.net/1808/16597
    DOI
    https://doi.org/10.1642/AUK-13-190.1
    ISSN
    0004-8038
    Collections
    • Ecology & Evolutionary Biology Scholarly Works [1555]
    Citation
    Gawin, Dency F. et al. (2014). "Patterns of avian diversification in Borneo: The case of the endemic Mountain Black-eye (Chlorocharis emiliae)." Auk, 131(1):89-99. http://www.dx.doi.org/10.1642/AUK-13-190.1

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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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