Effects of rearing conditions on natal dispersal processes in a long-lived predator bird

Natal or prebreeding dispersal is a key driver of the functioning, dynamics, and evolution of populations. Conditions experienced by individuals during development, that is, rearing conditions, may have serious consequences for the multiple components that shape natal dispersal processes. Rearing co...

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Detalles Bibliográficos
Autores: Azpillaga, Maialen, Real, Joan, Hernández Matías, Antonio, 1974-
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/132792
Acceso en línea:https://hdl.handle.net/2445/132792
Access Level:acceso abierto
Palabra clave:Rapinyaires
Dispersió dels animals
Birds of prey
Dispersal of animals
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spelling Effects of rearing conditions on natal dispersal processes in a long-lived predator birdAzpillaga, MaialenReal, JoanHernández Matías, Antonio, 1974-RapinyairesDispersió dels animalsBirds of preyDispersal of animalsNatal or prebreeding dispersal is a key driver of the functioning, dynamics, and evolution of populations. Conditions experienced by individuals during development, that is, rearing conditions, may have serious consequences for the multiple components that shape natal dispersal processes. Rearing conditions vary as a result of differences in parental and environmental quality, and it has been shown that favorable rearing conditions are beneficial for individuals throughout their lives. However, the long‐term consequences of rearing conditions on natal dispersal are still not fully understood in long‐lived birds. In this study, we aim to test the following hypotheses to address the relationship between rearing conditions and certain components of the natal dispersal process in Bonelli's eagle (Aquila fasciata): (1) The body condition of nestlings depends on the quality of the territory and/or breeders; and (2) the survival until recruitment, (3) the age of recruitment, and (4) the natal dispersal distance (NDD) all depend on rearing conditions. As expected, nestlings reared in territories with high past productivity of chicks had better body condition, which indicates that both body condition and past productivity reflect the rearing conditions under which chicks are raised. In addition, chicks raised in territories with high past productivity and with good body condition had greater chances of surviving until recruitment. Furthermore, birds that have better condition recruit earlier, and males recruit at a younger age than females. At last, although females in good body condition exhibited higher NDD when they recruited at younger ages, this pattern was not observed in either older females or males. Overall, this study provides evidence that rearing conditions have important long‐term consequences in long‐lived birds. On the basis of our results, we advocate that conservation managers work actively in the promotion of actions aimed at improving the rearing conditions under which individuals develop in threatened populations.John Wiley & Sons2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/132792Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1002/ece3.4165Ecology and Evolution, 2018, vol. 8, num. 13, p. 6682-6698https://doi.org/10.1002/ece3.4165cc-by (c) Azpillaga, Maialen et al., 2018http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1327922026-05-27T06:46:51Z
dc.title.none.fl_str_mv Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
title Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
spellingShingle Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
Azpillaga, Maialen
Rapinyaires
Dispersió dels animals
Birds of prey
Dispersal of animals
title_short Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
title_full Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
title_fullStr Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
title_full_unstemmed Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
title_sort Effects of rearing conditions on natal dispersal processes in a long-lived predator bird
dc.creator.none.fl_str_mv Azpillaga, Maialen
Real, Joan
Hernández Matías, Antonio, 1974-
author Azpillaga, Maialen
author_facet Azpillaga, Maialen
Real, Joan
Hernández Matías, Antonio, 1974-
author_role author
author2 Real, Joan
Hernández Matías, Antonio, 1974-
author2_role author
author
dc.subject.none.fl_str_mv Rapinyaires
Dispersió dels animals
Birds of prey
Dispersal of animals
topic Rapinyaires
Dispersió dels animals
Birds of prey
Dispersal of animals
description Natal or prebreeding dispersal is a key driver of the functioning, dynamics, and evolution of populations. Conditions experienced by individuals during development, that is, rearing conditions, may have serious consequences for the multiple components that shape natal dispersal processes. Rearing conditions vary as a result of differences in parental and environmental quality, and it has been shown that favorable rearing conditions are beneficial for individuals throughout their lives. However, the long‐term consequences of rearing conditions on natal dispersal are still not fully understood in long‐lived birds. In this study, we aim to test the following hypotheses to address the relationship between rearing conditions and certain components of the natal dispersal process in Bonelli's eagle (Aquila fasciata): (1) The body condition of nestlings depends on the quality of the territory and/or breeders; and (2) the survival until recruitment, (3) the age of recruitment, and (4) the natal dispersal distance (NDD) all depend on rearing conditions. As expected, nestlings reared in territories with high past productivity of chicks had better body condition, which indicates that both body condition and past productivity reflect the rearing conditions under which chicks are raised. In addition, chicks raised in territories with high past productivity and with good body condition had greater chances of surviving until recruitment. Furthermore, birds that have better condition recruit earlier, and males recruit at a younger age than females. At last, although females in good body condition exhibited higher NDD when they recruited at younger ages, this pattern was not observed in either older females or males. Overall, this study provides evidence that rearing conditions have important long‐term consequences in long‐lived birds. On the basis of our results, we advocate that conservation managers work actively in the promotion of actions aimed at improving the rearing conditions under which individuals develop in threatened populations.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/132792
url https://hdl.handle.net/2445/132792
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1002/ece3.4165
Ecology and Evolution, 2018, vol. 8, num. 13, p. 6682-6698
https://doi.org/10.1002/ece3.4165
dc.rights.none.fl_str_mv cc-by (c) Azpillaga, Maialen et al., 2018
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Azpillaga, Maialen et al., 2018
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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