Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population
Breeding dispersal is the movement of an individual between breeding attempts and is usually associated with the disruption of the social pair bond, although mates may disperse together as a social unit. In monogamous territorial species, the decision to disperse may be affected by individual attrib...
| Autores principales: | , , |
|---|---|
| Publicado: |
2017
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00191019_v159_n1_p168_Carro http://hdl.handle.net/20.500.12110/paper_00191019_v159_n1_p168_Carro |
| Aporte de: |
| id |
paper:paper_00191019_v159_n1_p168_Carro |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_00191019_v159_n1_p168_Carro2023-06-08T14:40:13Z Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population Carro, Mariana Emilia Llambías, Paulo Fernandez, Gustavo Javier adult sex ratio breeding success dispersal behaviour pair bond breeding population dispersal divorce mate choice reproductive success resource availability seasonality sex ratio songbird temperate environment Argentina Troglodytes Troglodytes aedon Breeding dispersal is the movement of an individual between breeding attempts and is usually associated with the disruption of the social pair bond, although mates may disperse together as a social unit. In monogamous territorial species, the decision to disperse may be affected by individual attributes such as sex, age and condition of the disperser. However, environmental and social contexts may also play a crucial role in the decision to disperse. We analysed capture-resighting data collected over 9 years to study breeding dispersal and divorce rates of a Southern House Wren Troglodytes aedon musculus population in South Temperate Argentina. Between-season dispersal was more frequent than within-season dispersal, with females dispersing more often than males, both between and within seasons. Both within-season and between-season breeding dispersal probability was affected by territory availability, but not by previous breeding success. When the adult sex ratio (ASR) was more skewed towards males, male between-season dispersal was also affected by mating status, with widowed and single males dispersing more often than paired males. Within-season divorce increased the reproductive success of females but not males, and was affected by the availability of social partners (with increasingly male-skewed ASR). Our results suggest that territorial vacancies and mating opportunities affect dispersal and divorce rates in resident Southern House Wrens, highlighting the importance of social and environmental contexts for dispersal behaviour and the stability of social pair bonds. © 2016 British Ornithologists' Union Fil:Carro, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Llambías, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fernández, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00191019_v159_n1_p168_Carro http://hdl.handle.net/20.500.12110/paper_00191019_v159_n1_p168_Carro |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
adult sex ratio breeding success dispersal behaviour pair bond breeding population dispersal divorce mate choice reproductive success resource availability seasonality sex ratio songbird temperate environment Argentina Troglodytes Troglodytes aedon |
| spellingShingle |
adult sex ratio breeding success dispersal behaviour pair bond breeding population dispersal divorce mate choice reproductive success resource availability seasonality sex ratio songbird temperate environment Argentina Troglodytes Troglodytes aedon Carro, Mariana Emilia Llambías, Paulo Fernandez, Gustavo Javier Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population |
| topic_facet |
adult sex ratio breeding success dispersal behaviour pair bond breeding population dispersal divorce mate choice reproductive success resource availability seasonality sex ratio songbird temperate environment Argentina Troglodytes Troglodytes aedon |
| description |
Breeding dispersal is the movement of an individual between breeding attempts and is usually associated with the disruption of the social pair bond, although mates may disperse together as a social unit. In monogamous territorial species, the decision to disperse may be affected by individual attributes such as sex, age and condition of the disperser. However, environmental and social contexts may also play a crucial role in the decision to disperse. We analysed capture-resighting data collected over 9 years to study breeding dispersal and divorce rates of a Southern House Wren Troglodytes aedon musculus population in South Temperate Argentina. Between-season dispersal was more frequent than within-season dispersal, with females dispersing more often than males, both between and within seasons. Both within-season and between-season breeding dispersal probability was affected by territory availability, but not by previous breeding success. When the adult sex ratio (ASR) was more skewed towards males, male between-season dispersal was also affected by mating status, with widowed and single males dispersing more often than paired males. Within-season divorce increased the reproductive success of females but not males, and was affected by the availability of social partners (with increasingly male-skewed ASR). Our results suggest that territorial vacancies and mating opportunities affect dispersal and divorce rates in resident Southern House Wrens, highlighting the importance of social and environmental contexts for dispersal behaviour and the stability of social pair bonds. © 2016 British Ornithologists' Union |
| author |
Carro, Mariana Emilia Llambías, Paulo Fernandez, Gustavo Javier |
| author_facet |
Carro, Mariana Emilia Llambías, Paulo Fernandez, Gustavo Javier |
| author_sort |
Carro, Mariana Emilia |
| title |
Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population |
| title_short |
Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population |
| title_full |
Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population |
| title_fullStr |
Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population |
| title_full_unstemmed |
Mate and territory availability affect breeding dispersal and divorce in a resident Southern House Wren Troglodytes aedon musculus population |
| title_sort |
mate and territory availability affect breeding dispersal and divorce in a resident southern house wren troglodytes aedon musculus population |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00191019_v159_n1_p168_Carro http://hdl.handle.net/20.500.12110/paper_00191019_v159_n1_p168_Carro |
| work_keys_str_mv |
AT carromarianaemilia mateandterritoryavailabilityaffectbreedingdispersalanddivorceinaresidentsouthernhousewrentroglodytesaedonmusculuspopulation AT llambiaspaulo mateandterritoryavailabilityaffectbreedingdispersalanddivorceinaresidentsouthernhousewrentroglodytesaedonmusculuspopulation AT fernandezgustavojavier mateandterritoryavailabilityaffectbreedingdispersalanddivorceinaresidentsouthernhousewrentroglodytesaedonmusculuspopulation |
| _version_ |
1768541969347248128 |