Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus

The development of agro-ecosystems in the pastures of the Pampean Region has substantially modified their structure and functioning. Many wild mammal populations in the Argentinean Pampas face habitat loss and/or fragmentation due to human activities, resulting in harmful genetic effects. The scream...

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Autores principales: Nardelli, Maximiliano, Ibañez, Ezequiel Alejandro, Dobler, Dara, Illia, Gimena, Abba, Agustín Manuel, Tunez, Juan Ignacio
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 2020
Materias:
Biología
Social organization
Mating system
Armadillos
Habitat fragmentation
Molecular ecology
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/137554
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-137554
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Social organization
Mating system
Armadillos
Habitat fragmentation
Molecular ecology
spellingShingle Biología
Social organization
Mating system
Armadillos
Habitat fragmentation
Molecular ecology
Nardelli, Maximiliano
Ibañez, Ezequiel Alejandro
Dobler, Dara
Illia, Gimena
Abba, Agustín Manuel
Tunez, Juan Ignacio
Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus
topic_facet Biología
Social organization
Mating system
Armadillos
Habitat fragmentation
Molecular ecology
description The development of agro-ecosystems in the pastures of the Pampean Region has substantially modified their structure and functioning. Many wild mammal populations in the Argentinean Pampas face habitat loss and/or fragmentation due to human activities, resulting in harmful genetic effects. The screaming hairy armadillo (Chaetophractus vellerosus) is a species considered an indicator of the state of preservation of the environments it inhabits. However, very little information is available about its mating system in the wild. In this sense, an isolated population of the screaming hairy armadillo in the northeast of Buenos Aires Province, which is separated from the main distribution area of the species by about 500 km, requires special attention. Genetic studies that analyzed social behavior and mating systems in Xenarthra are scarce but necessary to establish conservation actions for the isolated screaming hairy armadillo population under study. Thus, we analyzed the existence of a possible social organization in the species, together with its mating system, using a set of previously characterized microsatellites. Our results showed a complex scenario for the dispersal and mating system in this C. vellerosus population. Males disperse and females have a philopatric tendency with some degree of dispersal. This strategy, in combination with a polygynous-polyandrous mating system, could enhance genetic variability in this small and isolated population. In addition, no evidence of social organization was found.
format Articulo
Comunicacion
author Nardelli, Maximiliano
Ibañez, Ezequiel Alejandro
Dobler, Dara
Illia, Gimena
Abba, Agustín Manuel
Tunez, Juan Ignacio
author_facet Nardelli, Maximiliano
Ibañez, Ezequiel Alejandro
Dobler, Dara
Illia, Gimena
Abba, Agustín Manuel
Tunez, Juan Ignacio
author_sort Nardelli, Maximiliano
title Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus
title_short Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus
title_full Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus
title_fullStr Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus
title_full_unstemmed Genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, Chaetophractus vellerosus
title_sort genetic approach reveals a polygynous-polyandrous mating system and no social organization in a small and isolated population of the screaming hairy armadillo, chaetophractus vellerosus
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/137554
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