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Towards a functional classification of poorly known tropical insects: The case of rhinoceros beetles (Coleoptera, Dynastinae) in Panama

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    0564167 - BC 2024 RIV US eng J - Journal Article
    Basset, Yves - Blažek, Petr - Souto Vilarós, Daniel - Vargas, G. - Silva, J. A. R. - Barrios, H. - Perez, F. - Bobadilla, R. - Lopez, Y. - Čtvrtečka, Richard - Šípek, P. - Solís, A. - Segar, S. T. - Lamarre, Greg P. A.
    Towards a functional classification of poorly known tropical insects: The case of rhinoceros beetles (Coleoptera, Dynastinae) in Panama.
    Insect Conservation and Diversity. Roč. 16, č. 1 (2023), s. 147-163. ISSN 1752-458X. E-ISSN 1752-4598
    R&D Projects: GA ČR(CZ) GA20-31295S; GA ČR(CZ) GJ19-15645Y
    Institutional support: RVO:60077344
    Keywords : Barro Colorado Island * cryptic species * DNA barcoding
    OECD category: Ecology
    Impact factor: 3.5, year: 2022
    Method of publishing: Limited access
    https://resjournals.onlinelibrary.wiley.com/doi/10.1111/icad.12613

    The population dynamics of most tropical insects are unknown and long-term monitoring programmes are urgently needed to evaluate a possible insect decline in the tropics. In this context, functional groups can be used effectively to summarise time-series for species-rich taxa. Neotropical dung beetles have often been catalogued into functional groups, but close relatives also of ecological significance, the Dynastinae, are awaiting such a classification. Here, we examine the functional groups of Dynastinae at the regional (Panama: 147 species) and local (Barro Colorado Island, BCI: 56 species) scales. Our optimum classification of Panamanian species distinguished five groups, one of which is probably artificial and accounts for species ecologically poorly known. Ecological attributes or species traits mainly influencing the delineation of groups were geographical distribution, body length, seasonal aggregation, larval food and whether the adult may be present in decaying wood. Our analyses indicated that (1) missing trait values and the high percentage of 'cryptic' species (25%) influenced the delineation of groups, (2) the dendrogram similarity of functional groups versus phylogenetic tree was low, although some traits were phylogenetically conserved, and (3) the overall structure of functional groups was conserved when comparing regional and local data, suggesting no drastic loss of functional groups locally. To proceed with the functional classification of poorly known tropical insects, we recommend a cautious selection of traits a priori, inclusion of 'cryptic' species recognised by DNA barcoding, and building phylogenies, which may allow a careful taxonomic imputation to complete species-traits matrices.
    Permanent Link: https://hdl.handle.net/11104/0349813

     
     
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