Journal
JOURNAL OF BIOGEOGRAPHY
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1111/jbi.14724
Keywords
bats; biogeography; character convergence; character divergence; diet; neotropics
Categories
Ask authors/readers for more resources
This study assessed the relationship between morphological divergence and diet in the bat superfamily Noctilionoidea. The results showed a significant association between morphological divergence and coexistence, with distinctive patterns observed in different dietary groups.
Aim: The remarkable ecomorphological diversity of the bat superfamily Noctilionoidea is the result of a diet-mediated adaptive radiation. Stemming from a putatively insectivorous ancestor, noctilionoid bats diversified to adapt to the widest range of dietary ecologies among mammals. The high concentration of noctilionoid diversity in the Neotropics raises the question as to whether competitive ecological interactions influenced their diversification. However, patterns of morphological diversification along gradients of coexistence in Noctilionoidea are understudied. Here, we assessed the effect of dietary adaptations on patterns of morphological divergence associated with coexistence in noctilionoid bats.Location: The Americas and the Caribbean.Taxon: Bat superfamily Noctilionoidea.Methods: Using a set of five dental morphological traits and a sample of 108 species, we quantified morphological distances between noctilionoid species pairs to reveal patterns of morphological divergence along gradients of range overlap and dietary similarity. We incorporate phylogenetic information to control for the effects of species' relatedness on morphological distances.Results: Overall, we found a significant association between morphological divergence, coexistence and diet. Decomposing the correlation between morphological divergence and sympatry across dietary groups, our results revealed distinctive pat-terns consistent with both character convergence and divergence. Specifically, we found evidence of character convergence in herbivorous species and character diver-gence in omnivorous species.Main Conclusions: Our results indicate that the morphological diversification of noc-tilionoid bats followed parallel evolutionary trajectories of directional (both divergent and stabilising) and nonselective evolution linked to dietary adaptations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available