Exploratory behavior, but not aggressiveness, is correlated with breeding dispersal propensity in the highly philopatric thorn-tailed rayadito
Author
dc.contributor.author
Botero Delgadillo, Esteban
Author
dc.contributor.author
Quirici, Verónica
Author
dc.contributor.author
Poblete, Yanina
Author
dc.contributor.author
Poulin, Elie
Author
dc.contributor.author
Kempenaers, Bart
Author
dc.contributor.author
Vásquez, Rodrigo A.
Admission date
dc.date.accessioned
2020-04-16T21:48:58Z
Available date
dc.date.available
2020-04-16T21:48:58Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Journal of Avian Biology 2020 vol. 51 no. 2 e02262
es_ES
Identifier
dc.identifier.other
10.1111/jav.02262
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/173915
Abstract
dc.description.abstract
Studies on the relationship between behavioral traits and dispersal are necessary to
understand the evolution of dispersal syndromes. Empirical studies have mainly
focused on natal dispersal, even though behavioral differences between dispersers and
philopatric individuals are suspected to hold through the whole life cycle, potentially
affecting breeding dispersal propensity. Using capture–mark–recapture data and
behavioral trials in a forest passerine, the thorn-tailed rayadito Aphrastura spinicauda,
we describe inter-individual differences in exploratory behavior and aggressiveness,
and investigate the relationship between those traits and breeding dispersal. Our
study took place in Fray Jorge National Park, north-central Chile, where a relatively
isolated population of rayaditos inhabits a naturally fragmented environment. We
found that scores for behavioral traits were consistent between years. Exploratory
behavior was similar between sexes, while males showed higher levels of aggression
towards a conspecific male intruder. Only exploratory behavior was related to breeding
dispersal propensity, with fast-exploring rayaditos being more likely to have dispersed
between seasons. This finding provides indirect evidence for the existence of a
dispersal strategy that could reduce dispersal costs in the fragmented landscape of Fray
Jorge. To our knowledge, this is the first study documenting an association between
breeding dispersal and exploratory behavior in a wild bird population. A longitudinal
individual-based study will help determining whether this association constitutes a
behavioral syndrome.
es_ES
Patrocinador
dc.description.sponsorship
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)
CONICYT FONDECYT
1100359
1140548
3110059
11130245
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
ICM-P05-002
63130100
PFB-23
AFB-170008
COLFUTURO' scholarshiploan PCB-2012
Max Planck Society
Foundation CELLEX