Wing morphology covaries with migration distance in a highly aerial insectivorous songbird  

作　　者：Piotr Matyjasiak Cosme Lopez-Calderon Roberto Ambrosini Javier Balbontin Alessandra Costanzo Yosef Kiat Andrea Romano Diego Rubolini 

机构地区：[1]Museum and Institute of Zoology Polish Academy of Sciences,Wilcza 64,PL-00-679 Warsaw,Poland [2]Departamento de Zoologia,Facultad de Biologia,Edificio Verde,Avda.de Reina Mercedes s/n,E-41012 Sevilla,Spain [3]Dipartimento di Scienze e Politiche Ambientali,Universita degli Studi di Milano,via Celoria 26,I-20133 Milan,Italy [4]Israeli Bird Ringing Center(IBRC),Israel Ornithological Center,Society for the Protection of Nature in Israel,Hanegev 2,Tel-Aviv,Israel [5]Istituto di Ricerca sulle Acque,IRSA-CNR,Via del Mulino 19,I-20861 Brugherio(MB),Italy [6]Institute of Biological Sciences,Cardinal Stefan Wyszynski University in Warsaw,Woycickiego 1/3,PL-01-815 Warsaw [7]Department of Wetland Ecology,Estacion Biologica de Donana CsiC,Americo Vespucio s/n,E-41092 Seville,Spain

出　　处：《Current Zoology》2023年第3期255-263,共9页动物学报（英文版）

基　　金：P.M.was financially supported by"the National Science Centre"grant no.DEC-2013/09/B/NZ8/03321;A.C.was partially financially supported by grant FSE-REACT EU,DM 10/08/2021 n.1062;Field data collected in Spain was funded by research projects of the Junta de Andalucia(P12-RNM-2144).

摘　　要：According to classical prediction of aerodynamic theory,birds and other powered fliers that migrate over long distances should have longer and more pointed wings than those that migrate less.However,the association between wing morphology and migratory behavior can be masked by contrasting selective pressures related to foraging behavior,habitat selection and predator avoidance,possibly at the cost of lower flight energetic efficiency.We studied the handwing morphology of Eurasian barn swallows Hirundo rustica from four populations representing a migration distance gradient.This species is an aerial insectivore,so it flies extensively while foraging,and may migrate during the day using a‘fly-and-forage’migration strategy.Prolonged foraging flights may reinforce the effects of migration distance on flight morphology.We found that two wings’aerodynamic properties—isometric handwing length and pointedness,both favoring energetically efficient flight,were more pronounced in barn swallows from populations undertaking longer seasonal migrations compared to less migratory populations.Our result contrast with two recent interspecific comparative studies that either reported no relationship or reported a negative relationship between pointedness and the degree of migratory behavior in hirundines.Our results may thus contribute to confirming the universality of the rule that longer migrations are associated with more pointed wings.

关 键 词：flight morphology geographical differences Hirundo rustica migration syndrome POPULATION wing shape 

分 类 号：Q95[生物学—动物学]