Tri-axial accelerometry shows differences in energy expenditure and parental effort throughout the breeding season in long-lived raptors  

作　　者：Pascual LOPEZ-LOPEZ Arturo MPERONA Olga EGEA-CASAS Jon MORANT Vicente URIOS 

机构地区：[1]Movement Ecology Laboratory,Cavanilles Institute of Biodiversity and Evolutionary Biology,University of Valencia.C/Catedratico Jose,Beltran 2,E-46980 Paterna,Valencia,Spain [2]Department of Ornithology,Aranzadi Sciences Society,Donostia-S.Sebastian,Guipuzcoa 03690,Spain [3]Vertebrates Zoology Research Group,University of Alicante,Apdo.99,Alicante E-03080,Spain

出　　处：《Current Zoology》2022年第1期57-67,共11页动物学报（英文版）

基　　金：This work was supported by Red Electrica de Espana,Iberdrola Foundation,and Wildlife Service of the Valencian Community Regional Government(Conselleria d’Agricultura,Desenvolupament Rural,Emergencia Climatica i TransicioEcologica,Generalitat Valenciana,Spain);A.M.P.and J.M.E.were supported by predoctoral grants of the University of Valencia[Grant Number 0113/2019]and the Basque Government[Grant Number PRE_2018_2_0112],respectively.

摘　　要：Cutting-edge technologies are extremely useful to develop new workflows in studying ecological data,particularly to understand animal behavior and movement trajectories at the individual level.Although parental care is a well-studied phenomenon,most studies have been focused on direct observational or video recording data,as well as experimental manipulation.Therefore,what happens out of our sight still remains unknown.Using high-frequency GPS/GSM dataloggers and tri-axial accelerometers we monitored 25 Bonelli’s eagles Aquila fasciata during the breeding season to understand parental activities from a broader perspective.We used recursive data,measured as number of visits and residence time,to reveal nest attendance patterns of biparental care with role specialization between sexes.Accelerometry data interpreted as the overall dynamic body acceleration,a proxy of energy expenditure,showed strong differences in parental effort throughout the breeding season and between sexes.Thereby,males increased substantially their energetic requirements,due to the increased workload,while females spent most of the time on the nest.Furthermore,during critical phases of the breeding season,a low percentage of suitable hunting spots in eagles’territories led them to increase their ranging behavior in order to find food,with important consequences in energy consumption and mortality risk.Our results highlight the crucial role of males in raptor species exhibiting biparental care.Finally,we exemplify how biologging technologies are an adequate and objective method to study parental care in raptors as well as to get deeper insight into breeding ecology of birds in general.

关 键 词：BIOLOGGING GPS movement ecology ODBA space use TELEMETRY 

分 类 号：Q95[生物学—动物学]