ArticleIntegrative organismal biology (Oxford, England)2026
Unsupervised Wing-Bone Morphogroups in Bats Reveal Phylogenetic and Functional Patterns.
Article in Integrative organismal biology (Oxford, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Bat wings are complex biomechanical systems whose skeletal components play a central role in shaping flight performance. Although wing morphology in bats has traditionally been characterized using aerodynamic indices and ecological guilds, the contribution of individual wing bones to emergent patterns of wing design remains poorly understood. Here, we test whether interspecific variation in wing bone proportions is sufficient to generate objective, unsupervised morpho-wing bone groups (MWBGs) across Chiroptera. We quantified proportional variation in 10 wing bone elements relative to forearm length in 526 individuals representing 59 species from six bat families. Log-ratio-transformed measurements were analyzed using principal component analysis and hierarchical clustering, followed by linear discriminant analysis for group validation. We identified five robust MWBGs that explain coordinated variation in distal, intermediate, and proximal wing elements. These groups were recovered independently of
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