2024-03-28T11:57:30Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1104692022-11-17T12:56:14Zcom_10261_77com_10261_8com_10261_108col_10261_330col_10261_361
00925njm 22002777a 4500
dc
Ortego, Joaquín
author
García-Navas, Vicente
author
Ferrer, Esperanza S.
author
Sanz, Juan José
author
2011
The study of the genetic consequences of dispersal is a central topic in evolutionary, conservation and behavioural research. However, few studies have simultaneously considered dispersal movements from marked individuals and contemporary patterns of gene flow. We analysed the link between dispersal behaviour and gene flow in four populations of blue tits with different degrees of connectivity. For this purpose, we monitored four breeding patches and used genotypic and capture–mark–recapture data to study the genetic consequences of dispersal at different spatial scales. Data on natal dispersal movements revealed that both males and females dispersed less than expected under a random pattern of settlement at the two large spatial scales considered: the whole study area and the two main localities. However, natal dispersal distance was lower than expected under random settlement within natal patches in males whereas an opposite pattern was found for females. Accordingly, microsatellite data revealed limited gene flow between the localities studied and an isolation-by-distance pattern of genetic structure that was particularly strong at the large spatial scale (i.e. considering geographically distant breeding patches). Finally, the strong male philopatry was reflected by a stronger genetic structure and a lower admixed ancestry in this sex. Overall, we found evidence that restricted dispersal and fragmentation may have both contributed to reduce interpopulation gene flow at different spatial scales in a forest species and that there is concordance between genetic studies and those based on capture–mark–recapture.
Animal Behaviour 82(1): 131-137 (2011)
0003-3472
http://hdl.handle.net/10261/110469
10.1016/j.anbehav.2011.04.007
http://dx.doi.org/10.13039/501100003339
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100011698
Cyanistes caeruleus
Genetic structure
Microsatellites
Natal dispersal
Population fragmentation
Sex-biased dispersal
Genetic structure reflects natal dispersal movements at different spatial scales in the blue tit, Cyanistes caeruleus