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    Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation

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    Author
    Stuckert, Adam MM; Saporito, Ralph A; Venegas, Pablo J; Summers, Kyle
    Abstract
    Background Polytypism in aposematic species is unlikely according to theory, but commonly seen in nature. Ranitomeya imitator is a poison frog species exhibiting polytypic mimicry of three congeneric model species (R. fantastica, R. summersi, and two morphs of R. variabilis) across four allopatric populations (a "mimetic radiation"). In order to investigate chemical defenses in this system, a key prediction of Müllerian mimicry, we analyzed the alkaloids of both models and mimics from four allopatric populations. Results In this study we demonstrate distinct differences in alkaloid profiles between co-mimetic species within allopatric populations. We further demonstrate that R. imitator has a greater number of distinct alkaloid types than the model species and more total alkaloids in all but one population. Conclusions Given that R. imitator is the more abundant species in these populations, R. imitator is likely driving the majority of predator-learned avoidance in these complexes. The success of Ranitomeya imitator as a putative advergent mimic may be a direct result of differences in alkaloid sequestration. Furthermore, we propose that automimicry within co-mimetic species is an important avenue of research.
    URI
    http://hdl.handle.net/10342/5509
    Subject
     Alkaloids; Aposematism; Dendrobatids; Müllerian mimicry; Polytypism; Ranitomeya imitator 
    Date
    2014
    Citation:
    APA:
    Stuckert, Adam MM, & Saporito, Ralph A, & Venegas, Pablo J, & Summers, Kyle. (January 2014). Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation. BMC Evolutionary Biology, (76-76. Retrieved from http://hdl.handle.net/10342/5509

    Display/Hide MLA, Chicago and APA citation formats.

    MLA:
    Stuckert, Adam MM, and Saporito, Ralph A, and Venegas, Pablo J, and Summers, Kyle. "Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation". BMC Evolutionary Biology. . (76-76.), January 2014. March 03, 2021. http://hdl.handle.net/10342/5509.
    Chicago:
    Stuckert, Adam MM and Saporito, Ralph A and Venegas, Pablo J and Summers, Kyle, "Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation," BMC Evolutionary Biology 14, no. (January 2014), http://hdl.handle.net/10342/5509 (accessed March 03, 2021).
    AMA:
    Stuckert, Adam MM, Saporito, Ralph A, Venegas, Pablo J, Summers, Kyle. Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation. BMC Evolutionary Biology. January 2014; 14() 76-76. http://hdl.handle.net/10342/5509. Accessed March 03, 2021.
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