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    Seasonal polyphenism in Bicyclus dorothea (Lepidoptera: Nymphalidae) across different habitats in Cameroon

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    Journal Article (4.913Mb)
    Authors
    Dongmo, M.A.K.
    Bonebrake, T.C.
    Hanna, R.
    Fomena, A.
    Date Issued
    2018-12
    Date Online
    2018-09
    Language
    en
    Type
    Journal Article
    Review status
    Peer Review
    ISI journal
    Accessibility
    Open Access
    Usage rights
    CC-BY-4.0
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    Citation
    Dongmo, M.A., Bonebrake, T.C., Hanna, R. & Fomena, A. (2018). Seasonal Polyphenism in Bicyclus dorothea (Lepidoptera: Nymphalidae) Across Different Habitats in Cameroon. Environmental Entomology, 47(6), 1601-1608.
    Permanent link to cite or share this item: https://hdl.handle.net/10568/103502
    DOI: https://doi.org/10.1093/ee/nvy135
    Abstract/Description
    Many organisms exhibit changes in phenotypic traits as a response to seasonal environmental variation. We investigated the role of habitat in generating seasonal polyphenism in different populations of the light bush brown butterfly Bicyclus dorothea (Cramer, 1779) (Lepidoptera: Nymphalidae) in Cameroon. Butterflies were caught during the wet and dry seasons across four localities representing two distinct habitats, namely forest and ecotone (forest–savanna transition zone) over a 2-yr period (2015–2016). We found distinct variation in the wing pattern characteristics of butterflies in response to seasonality and habitat. Specifically we observed that: 1) all wing characters are not seasonally plastic in B. dorothea; 2) populations from ecotone tend to be more variable, with individuals exhibiting wings with large spots during the wet season and very reduced spots in the dry season while in forest populations, individuals exhibit wings with large spots during the wet season, but in the dry season, spots are not as greatly reduced as their ecotone counterparts; 3) this polyphenism in B. dorothea alternated consistently during the wet and dry seasons over the 2 yr of sampling. Bicyclus species have become a textbook example of seasonal polyphenism while this study extends this model system to the unique forest–ecotone gradient of Central Africa and demonstrates the complexity of seasonal forms in different habitats.
    CGIAR Author ORCID iDs
    Rachid Hannahttps://orcid.org/0000-0002-5715-0144
    Other CGIAR Affiliations
    Roots, Tubers and Bananas
    AGROVOC Keywords
    ecotone; forests; nymphalidae; cameroon; polyphenols
    Subjects
    PESTS OF PLANTS
    Countries
    Cameroon
    Regions
    Africa; Middle Africa
    Organizations Affiliated to the Authors
    International Institute of Tropical Agriculture; University of Hong Kong; Université de Yaoundé
    Investors/sponsors
    National Science Foundation, United States
    Collections
    • IITA Journal Articles [4964]
    • RTB Journal Articles [1339]

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