Journal
ECOLOGY AND EVOLUTION
Volume 13, Issue 3, Pages -Publisher
WILEY
DOI: 10.1002/ece3.9840
Keywords
Chiroptera; phylogenetic signal; pre-adaptation; urban
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By collating data on urban presence, phylogenetic relationship, and ecological traits of 54 insectivorous bats in Africa, this study found that the response of African bats to urbanization is evolutionarily conserved and mediated by pre-adaptations. Traits such as high wing loading and aspect ratio, and flexible roosting strategies enable bats to occupy urban areas. This research identifies the predicted traits of bat species occurring in urban areas and highlights the vulnerable bat clades that conservation efforts should focus on to reduce loss of functional and phylogenetic diversity in Africa.
With increasing urbanization, particularly in developing countries, it is important to understand how local biota will respond to such landscape changes. Bats comprise one of the most diverse groups of mammals in urban areas, and many species are threatened by habitat destruction and land use change. Yet, in Africa, the response of bats to urban areas is relatively understudied. Therefore, we collated data on urban presence, phylogenetic relationship, and ecological traits of 54 insectivorous bats in Africa from available literature to test if their response to urbanization was phylogenetically and/or ecologically driven. Ancestral state reconstruction of urban tolerance, defined by functional group and presence observed in urban areas, suggests that ancestral African bat species could adapt to urban landscapes, and significant phylogenetic signal for urban tolerance indicates that this ability is evolutionarily conserved and mediated by pre-adaptations. Specifically, traits of high wing loading and aspect ratio, and flexible roosting strategies, enable occupancy of urban areas. Therefore, our results identify the traits that predict which bat species will likely occur in urban areas, and which vulnerable bat clades conservation efforts should focus on to reduce loss of both functional and phylogenetic diversity in Africa. We, additionally, highlight several gaps in research that should be investigated in future studies to provide better monitoring of the impact urbanization will have on African bats.
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