Roosting ecology and the evolution of bat landing maneuvers
Boerma, D.; Swartz, S.
Show abstract
Biomechanics is poised at the intersection of organismal form, function, and ecology, and forms a practical lens through which to investigate evolutionary linkages among these factors. We conducted the first evolutionary analysis of bat flight dynamics by examining the phylogenetic patterning of landing mechanics. We discovered that bats perform stereotyped maneuvers that are correlated with landing performance quantified as impact force, and that these are linked with roosting ecology, a critical aspect of bat biology. Our findings suggest that bat ancestors performed simple, four-limbed landings, similar to those performed by gliding mammals, and that more complex landings evolved in association with novel roost types. This explicit connection between ecology and biomechanics presents the opportunity to identify traits that are associated with a locomotor behavior of known ecological relevance, thus laying the foundation for a broader understanding of the evolution of flight and wing architecture in this extraordinarily successful mammalian lineage.
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