Evaluation of the territorial behaviour of four species of sparrows in the central monte desert

Territorial behaviour in birds is common, but very few studies have attempted to understand what are birds defending in their territories. We evaluated intra and interspecific territorial behaviour among four species of sparrows in the central Monte desert during two consecutive years, in order to a...

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Detalles Bibliográficos
Autores principales: Cecilia Sagario, M., Cueto, V.R.
Formato: JOUR
Materias:
Aggression
Food resources
Interspecific territoriality
Intraspecific territoriality
Playback experiments
Reproductive resources
Amphispiza
Aves
Passeridae
Poospiza ornata
Poospiza torquata
Saltatricula multicolor
Zonotrichia capensis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00733407_v29_n2_p81_CeciliaSagario
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00733407_v29_n2_p81_CeciliaSagario
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spelling todo:paper_00733407_v29_n2_p81_CeciliaSagario2023-10-03T14:53:31Z Evaluation of the territorial behaviour of four species of sparrows in the central monte desert Cecilia Sagario, M. Cueto, V.R. Aggression Food resources Interspecific territoriality Intraspecific territoriality Playback experiments Reproductive resources Amphispiza Aves Passeridae Poospiza ornata Poospiza torquata Saltatricula multicolor Zonotrichia capensis Territorial behaviour in birds is common, but very few studies have attempted to understand what are birds defending in their territories. We evaluated intra and interspecific territorial behaviour among four species of sparrows in the central Monte desert during two consecutive years, in order to assess possible interactions and plasticity in their behaviour. We performed playback experiments on the Cinnamon Warbling-Finch (Poospiza ornata), the Ringed Warbling-Finch (Poospiza torquata), the Rufous-collared Sparrow (Zonotrichia capensis), and the Many-coloured Chaco-Finch (Saltatricula multicolor). Every species showed conspecific territoriality, which tended to be weaker during the year of better environmental conditions (wetter and with higher food abundance). We also found a lack of territorial response among the species within the same feeding guild. However, we observed an asymmetric response between the species that use similar nest sites. The Cinnamon Warbling-Finch showed aggression towards the Ringed Warbling-Finch, and this occurred only during the year when the abundance of the former species was high. Our results and previous evidence suggest that territoriality in central Monte desert sparrows is most likely to be driven by defence of reproductive resources, and conflicts over food would be less important. Our results also hint that birds may respond different to both heterospecifics and conspecifics based both on their own abundance and on environmental conditions. © 2014 Association Ornitologica del Plata. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00733407_v29_n2_p81_CeciliaSagario
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Aggression
Food resources
Interspecific territoriality
Intraspecific territoriality
Playback experiments
Reproductive resources
Amphispiza
Aves
Passeridae
Poospiza ornata
Poospiza torquata
Saltatricula multicolor
Zonotrichia capensis
spellingShingle Aggression
Food resources
Interspecific territoriality
Intraspecific territoriality
Playback experiments
Reproductive resources
Amphispiza
Aves
Passeridae
Poospiza ornata
Poospiza torquata
Saltatricula multicolor
Zonotrichia capensis
Cecilia Sagario, M.
Cueto, V.R.
Evaluation of the territorial behaviour of four species of sparrows in the central monte desert
topic_facet Aggression
Food resources
Interspecific territoriality
Intraspecific territoriality
Playback experiments
Reproductive resources
Amphispiza
Aves
Passeridae
Poospiza ornata
Poospiza torquata
Saltatricula multicolor
Zonotrichia capensis
description Territorial behaviour in birds is common, but very few studies have attempted to understand what are birds defending in their territories. We evaluated intra and interspecific territorial behaviour among four species of sparrows in the central Monte desert during two consecutive years, in order to assess possible interactions and plasticity in their behaviour. We performed playback experiments on the Cinnamon Warbling-Finch (Poospiza ornata), the Ringed Warbling-Finch (Poospiza torquata), the Rufous-collared Sparrow (Zonotrichia capensis), and the Many-coloured Chaco-Finch (Saltatricula multicolor). Every species showed conspecific territoriality, which tended to be weaker during the year of better environmental conditions (wetter and with higher food abundance). We also found a lack of territorial response among the species within the same feeding guild. However, we observed an asymmetric response between the species that use similar nest sites. The Cinnamon Warbling-Finch showed aggression towards the Ringed Warbling-Finch, and this occurred only during the year when the abundance of the former species was high. Our results and previous evidence suggest that territoriality in central Monte desert sparrows is most likely to be driven by defence of reproductive resources, and conflicts over food would be less important. Our results also hint that birds may respond different to both heterospecifics and conspecifics based both on their own abundance and on environmental conditions. © 2014 Association Ornitologica del Plata. All rights reserved.
format JOUR
author Cecilia Sagario, M.
Cueto, V.R.
author_facet Cecilia Sagario, M.
Cueto, V.R.
author_sort Cecilia Sagario, M.
title Evaluation of the territorial behaviour of four species of sparrows in the central monte desert
title_short Evaluation of the territorial behaviour of four species of sparrows in the central monte desert
title_full Evaluation of the territorial behaviour of four species of sparrows in the central monte desert
title_fullStr Evaluation of the territorial behaviour of four species of sparrows in the central monte desert
title_full_unstemmed Evaluation of the territorial behaviour of four species of sparrows in the central monte desert
title_sort evaluation of the territorial behaviour of four species of sparrows in the central monte desert
url http://hdl.handle.net/20.500.12110/paper_00733407_v29_n2_p81_CeciliaSagario
work_keys_str_mv AT ceciliasagariom evaluationoftheterritorialbehaviouroffourspeciesofsparrowsinthecentralmontedesert
AT cuetovr evaluationoftheterritorialbehaviouroffourspeciesofsparrowsinthecentralmontedesert
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