10.5061/DRYAD.3KN78
Graham, Brendan A.
University of Windsor
Heath, Daniel D.
University of Windsor
Mennill, Dan J.
University of Windsor
Mennill, Daniel J.
University of Windsor
Data from: Dispersal influences genetic and acoustic spatial structure for
both males and females in a tropical songbird
Dryad
dataset
2018
Thryophilus rufalbus
spatial genetic structure
Natal dispersal
2018-09-22T00:00:00Z
2018-09-22T00:00:00Z
en
https://doi.org/10.1002/ece3.3456
86427 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
1. Animals exhibit diverse dispersal strategies, including sex-biased
dispersal, a phenomenon common in vertebrates. Dispersal influences the
genetic structure of populations as well as geographic variation in
phenotypic traits. Patterns of spatial genetic structure and geographic
variation may vary between the sexes whenever males and females exhibit
different dispersal behaviours. 2. Here, we examine dispersal, spatial
genetic structure, and spatial acoustic structure in Rufous-and-white
Wrens, a year-round resident tropical bird. Both sexes sing in this
species, allowing us to compare acoustic variation between males and
females, and examine the relationship between dispersal and song sharing
for both sexes. 3. Using a long-term dataset collected over an 11-year
period, we used banding data and molecular genetic analyses to quantify
natal and breeding dispersal distance in Rufous-and-white Wrens. We
quantified song-sharing and examined whether sharing varied with dispersal
distance, for both males and females. 4. Observational data and molecular
genetic analyses indicate that dispersal is female-biased. Females
dispersed farther from natal territories than males, and more often
between breeding territories than males. Furthermore, females showed no
significant spatial genetic structure, consistent with expectations,
whereas males showed significant spatial genetic structure. Overall, natal
dispersal appears to have more influence than breeding dispersal on
spatial genetic structure and spatial acoustic structure, given that the
majority of breeding dispersal events resulted in individuals moving only
short distances. 5. Song sharing between pairs of same-sex animals
decreases with the distance between their territories for both males and
females, although males exhibited significantly greater song-sharing than
females. 6. Lastly, we measured the relationship between natal dispersal
distance and song sharing. We found that sons shared fewer songs with
their fathers the farther they dispersed from their natal territories, but
that song sharing between daughters and mothers was not significantly
correlated with natal dispersal distance. 7. Our results reveal cultural
differences between the sexes, suggesting a relationship between culture
and sex-biased dispersal
Dryad msat file