Abstract
The active flight allows bats to explore different ecological niches, resulting in diverse feeding habits and great morphological variation. Studies using biomechanical indices to explore the relationships between forelimb skeletal morphology and ecological aspects are scarce in bats. For this reason, we decided to analyze, in a functional context, the relationship between forelimb morphology and feeding ecology of Neotropical bats. To describe the morphology of the forelimbs, we used six biomechanical indices, and evaluated their correlation with foraging habitats and trophic guilds in five families of bats distributed in the Neotropical region. We examined 140 specimens belonging to 23 genera and 43 extant species. Among the morpho-functional indices analyzed, the epicondylar index, the humeral robustness, and the radial distal end width index were the variables that most contributed to the discriminant functions. Our results showed a direct correlation between forelimb morphology and foraging habitats, which could indicate that these morphological characteristics are possibly shared, despite the different evolutionary histories in the analyzed taxa. Here, we provide new morpho-functional and biomechanical data that will facilitate the evaluation of the evolution of morphological diversification in bats.
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Calculations and analyses are published in this article and its supplementary information files, raw data may be made available upon request to the authors.
Change history
02 March 2023
A Correction to this paper has been published: https://doi.org/10.1007/s00435-023-00598-4
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Acknowledgements
The authors are grateful to Rubén Barquez, curator of the Colección Mamíferos Lillo–Universidad Nacional de Tucumán. This work was supported by a doctoral fellowship of CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas) awarded to PJG and Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación, PICT-2016-0359 granted to MMD. The author PJG thanks Guillermina Krieger and Marilina Sobrero for their help in writing the manuscript, and Rubén Barquez for revising and improving the English.
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Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación, UNT PICT 2016-0359.
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Gaudioso PJ, Pérez MJ and Gamboa Alurralde S wrote the main manuscript text and prepared figures 1-7. Gaudioso PJ and Pérez MJ processed the data and interpreted the results. Diaz MM and Toledo N revised the English in the entire manuscript and supervised the findings of this research. All authors discussed the results and reviewed the final manuscript.
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Gaudioso, P.J., Pérez, M.J., Gamboa Alurralde, S. et al. Exploration of the morphology and functional implications of the forelimb in bats (Mammalia, Chiroptera) from the Neotropical region. Zoomorphology 142, 233–249 (2023). https://doi.org/10.1007/s00435-022-00588-y
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DOI: https://doi.org/10.1007/s00435-022-00588-y