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

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

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dc.contributor.author López-López, P
dc.contributor.author Perona, A.M
dc.contributor.author Egea-Casas, O
dc.contributor.author Morant, J. Urios, V.
dc.date.accessioned 2022-02-09T12:03:48Z
dc.date.available 2022-02-09T12:03:48Z
dc.date.issued 2021
dc.identifier.uri https://hdl.handle.net/10550/81551
dc.description.abstract 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.
dc.language.iso eng
dc.relation.ispartof Current Zoology, 2021
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source López-López, P Perona, A.M Egea-Casas, O Morant, J. Urios, V. 2021 Tri-axial accelerometry shows differences in energy expenditure and parental effort throughout the breeding season in long-lived raptors Current Zoology
dc.subject Zoologia
dc.subject Ornitologia
dc.title Tri-axial accelerometry shows differences in energy expenditure and parental effort throughout the breeding season in long-lived raptors
dc.type info:eu-repo/semantics/article
dc.date.updated 2022-02-09T12:03:48Z
dc.identifier.doi https://doi.org/10.1093/cz/zoab010
dc.identifier.idgrec 150174

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