Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina

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Modification of nesting sites caused by human activity can have a negative effect on the reproductive success of birds. In recent decades, a population of Red-crested Cardinal (Paroaria coronata) was established in a modified forest with ecotourism intense activity. In this paper, we model the daily...

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Autores principales: Segura, L.N., Berkunsky, I.
Formato: Artículo publishedVersion
Publicado: 2012
Materias:
Ecotourism
Human disturbance
Nest predation
Nest success
Paroaria coronata
Red-crested Cardinal
Thraupidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10754377_v23_n4_p489_Segura
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_10754377_v23_n4_p489_Segura_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_10754377_v23_n4_p489_Segura_oai
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spelling I28-R145-paper_10754377_v23_n4_p489_Segura_oai2020-10-19 Segura, L.N. Berkunsky, I. 2012 Modification of nesting sites caused by human activity can have a negative effect on the reproductive success of birds. In recent decades, a population of Red-crested Cardinal (Paroaria coronata) was established in a modified forest with ecotourism intense activity. In this paper, we model the daily nest survival rate of this population of Red-crested Cardinal and we assessed the effect of time of season, age of nest and environmental variables. Between 2007 and 2009 we monitored 69 nests found in areas with different eco-tourist activity and we used the program MARK to estimate and model the daily survival rates. Only six nests produced fledglings and the main cause of nest failure was predation (88%). Nest survival increased with the vegetation cover around the nest and decreased with the date of the breeding season. We found no significant effect in nest survival of the activities related to ecotourism. The coverage around the nest could reduce their exposure by decreasing their detectability and hindering the access of predators, while the decrease in survival over the season could be the result of changes in the community of predators. The low nest survival associated with high rates of nest predation suggest that, in this study site, predator community could be being affected by human habitat alterations. © The Neotropical Ornithological Society. Fil:Segura, L.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_10754377_v23_n4_p489_Segura info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Ornitol. Neotrop. 2012;23(4):489-498 Ecotourism Human disturbance Nest predation Nest success Paroaria coronata Red-crested Cardinal Thraupidae Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_10754377_v23_n4_p489_Segura_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic Ecotourism
Human disturbance
Nest predation
Nest success
Paroaria coronata
Red-crested Cardinal
Thraupidae
spellingShingle Ecotourism
Human disturbance
Nest predation
Nest success
Paroaria coronata
Red-crested Cardinal
Thraupidae
Segura, L.N.
Berkunsky, I.
Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina
topic_facet Ecotourism
Human disturbance
Nest predation
Nest success
Paroaria coronata
Red-crested Cardinal
Thraupidae
description Modification of nesting sites caused by human activity can have a negative effect on the reproductive success of birds. In recent decades, a population of Red-crested Cardinal (Paroaria coronata) was established in a modified forest with ecotourism intense activity. In this paper, we model the daily nest survival rate of this population of Red-crested Cardinal and we assessed the effect of time of season, age of nest and environmental variables. Between 2007 and 2009 we monitored 69 nests found in areas with different eco-tourist activity and we used the program MARK to estimate and model the daily survival rates. Only six nests produced fledglings and the main cause of nest failure was predation (88%). Nest survival increased with the vegetation cover around the nest and decreased with the date of the breeding season. We found no significant effect in nest survival of the activities related to ecotourism. The coverage around the nest could reduce their exposure by decreasing their detectability and hindering the access of predators, while the decrease in survival over the season could be the result of changes in the community of predators. The low nest survival associated with high rates of nest predation suggest that, in this study site, predator community could be being affected by human habitat alterations. © The Neotropical Ornithological Society.
format Artículo
Artículo
publishedVersion
author Segura, L.N.
Berkunsky, I.
author_facet Segura, L.N.
Berkunsky, I.
author_sort Segura, L.N.
title Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina
title_short Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina
title_full Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina
title_fullStr Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina
title_full_unstemmed Nest survival of the Red-crested Cardinal (Paroaria coronata) in a modified habitat in Argentina
title_sort nest survival of the red-crested cardinal (paroaria coronata) in a modified habitat in argentina
publishDate 2012
url http://hdl.handle.net/20.500.12110/paper_10754377_v23_n4_p489_Segura
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_10754377_v23_n4_p489_Segura_oai
work_keys_str_mv AT seguraln nestsurvivaloftheredcrestedcardinalparoariacoronatainamodifiedhabitatinargentina
AT berkunskyi nestsurvivaloftheredcrestedcardinalparoariacoronatainamodifiedhabitatinargentina
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