Functional correlates of skull shape in Chiroptera:feeding and echolocation adaptations  

作　　者：Giada GIACOMINI Anthony HERREL Gloriana CHAVERRI Richard P.BROWN Danilo RUSSO Dino SCARAVELLI Carlo MELORO 

机构地区：[1]Research Centre in Evolutionary Anthropology and Palaeoecology,School of Biological and Environmental Sciences,Liverpool John Moores University,UK [2]Département d’Ecologie et de Gestion de Paris,C.N.R.S/M.N.H.N.,Paris,France [3]Recinto de Golfito,Universidad de Costa Rica,Golfito,Costa Rica [4]Smithsonian Tropical Research Institute,Balboa,Ancón,República de Panamá [5]Wildlife Research Unit,Dipartimento di Agraria,Universitàdegli Studi di Napoli Federico II,Portici,Italy [6]School of Biological Sciences,Life Sciences Building,University of Bristol,Bristol,UK [7]Department of Veterinary Medical Sciences,University of Bologna,Ozzano dell’Emilia,Italy

出　　处：《Integrative Zoology》2022年第3期430-442,共13页整合动物学（英文版）

基　　金：This research received support from the SYNTHESYS 3 Project http://synthesys3.myspecies.info/which is financed by the European Community Research Infrastructure Action under the FP7(BE-TAF-6601,HU-TAF-6926,DK-TAF-6870,FR-TAF-6924,AT-TAF-6820,awarded to the first author).

摘　　要：Morphological,functional,and behavioral adaptations of bats are among the most diverse within mammals.A strong association between bat skull morphology and feeding behavior has been suggested previously.However,morphological variation related to other drivers of adaptation,in particular echolocation,remains understudied.We assessed variation in skull morphology with respect to ecology(diet and emission type)and function(bite force,masticatory muscles and echolocation characteristics)using geometric morphometrics and comparative methods.Our study suggests that variation in skull shape of 10 bat families is the result of adaptations to broad dietary categories and sound emission types(oral or nasal).Skull shape correlates with echolocation parameters only in a subsample of insectivorous species,possibly because they(almost)entirely rely on this sensory system for locating and capturing prey.Insectivores emitting low frequencies are characterized by a ventrally tilted rostrum,a trait not associated with feeding parameters.This result questions the validity of a trade-off between feeding and echolocation function.Our study advances understanding of the relationship between skull morphology and specific features of echolocation and suggests that evolutionary constraints due to echolocation may differ between different groups within the Chiroptera.

关 键 词：DIET ECHOLOCATION functional morphology geometric morphometrics MACROEVOLUTION 

分 类 号：Q43[生物学—生理学]