Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile
Geranoaetus polyosoma (Quoy & Gaimard, 1824) is a diurnal raptor widely distributed in South America. Although the trophic ecology of this bird has been more studied in the southern extreme of its range, little information is available on its dietary response to prey supply in desert environment...
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2020
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Online Access: | https://doi.org/10.3897/zoologia.37.e55615 |
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ftzenodo:oai:zenodo.org:4322090 2024-09-15T18:32:02+00:00 Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile Muñoz-Pedreros, Andrés Norambuena, Heraldo V. Gil, Claudia Rau, Jaime 2020-12-07 https://doi.org/10.3897/zoologia.37.e55615 unknown Pensoft Publishers https://doi.org/10.3897/zoologia.37.e55615.figure1 https://zenodo.org/communities/biosyslit https://doi.org/10.3897/zoologia.37.e55615 oai:zenodo.org:4322090 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Zoologia, 37, 1-6, (2020-12-07) Animalia Chordata Aves Accipitriformes Accipitridae Diet predation Red-backed hawk trophic ecology info:eu-repo/semantics/article 2020 ftzenodo https://doi.org/10.3897/zoologia.37.e5561510.3897/zoologia.37.e55615.figure1 2024-07-26T11:27:49Z Geranoaetus polyosoma (Quoy & Gaimard, 1824) is a diurnal raptor widely distributed in South America. Although the trophic ecology of this bird has been more studied in the southern extreme of its range, little information is available on its dietary response to prey supply in desert environments. In the present study, we report on the trophic ecology of G. polyosoma in a sub-urban desert zone in northern Chile, with the following objectives: (1) to quantitatively describe its diet and (2) to determine its dietary selectivity in response to prey supply in the study area. The diet of G. polyosoma consisted mainly of rodents (97.2%). A greater preference (p < 0.05) was observed for the following large prey items (> 19.5 g): two native rodent species, Phyllotis xanthopygus (Waterhouse, 1837) and Eligmodontia puerulus (Philippi, 1896); and two introduced rodent species: Rattus rattus (Linnaeus, 1769) and R. norvegicus (Berkenhout, 1769). Article in Journal/Newspaper Rattus rattus Zenodo Zoologia 37 1 6 |
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collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Animalia Chordata Aves Accipitriformes Accipitridae Diet predation Red-backed hawk trophic ecology |
spellingShingle |
Animalia Chordata Aves Accipitriformes Accipitridae Diet predation Red-backed hawk trophic ecology Muñoz-Pedreros, Andrés Norambuena, Heraldo V. Gil, Claudia Rau, Jaime Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
topic_facet |
Animalia Chordata Aves Accipitriformes Accipitridae Diet predation Red-backed hawk trophic ecology |
description |
Geranoaetus polyosoma (Quoy & Gaimard, 1824) is a diurnal raptor widely distributed in South America. Although the trophic ecology of this bird has been more studied in the southern extreme of its range, little information is available on its dietary response to prey supply in desert environments. In the present study, we report on the trophic ecology of G. polyosoma in a sub-urban desert zone in northern Chile, with the following objectives: (1) to quantitatively describe its diet and (2) to determine its dietary selectivity in response to prey supply in the study area. The diet of G. polyosoma consisted mainly of rodents (97.2%). A greater preference (p < 0.05) was observed for the following large prey items (> 19.5 g): two native rodent species, Phyllotis xanthopygus (Waterhouse, 1837) and Eligmodontia puerulus (Philippi, 1896); and two introduced rodent species: Rattus rattus (Linnaeus, 1769) and R. norvegicus (Berkenhout, 1769). |
format |
Article in Journal/Newspaper |
author |
Muñoz-Pedreros, Andrés Norambuena, Heraldo V. Gil, Claudia Rau, Jaime |
author_facet |
Muñoz-Pedreros, Andrés Norambuena, Heraldo V. Gil, Claudia Rau, Jaime |
author_sort |
Muñoz-Pedreros, Andrés |
title |
Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
title_short |
Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
title_full |
Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
title_fullStr |
Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
title_full_unstemmed |
Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
title_sort |
selective consumption of rodents by the variable hawk geranoaetus polyosoma (accipitriformes: accipitridae) in the atacama desert, northern chile |
publisher |
Pensoft Publishers |
publishDate |
2020 |
url |
https://doi.org/10.3897/zoologia.37.e55615 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Zoologia, 37, 1-6, (2020-12-07) |
op_relation |
https://doi.org/10.3897/zoologia.37.e55615.figure1 https://zenodo.org/communities/biosyslit https://doi.org/10.3897/zoologia.37.e55615 oai:zenodo.org:4322090 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.3897/zoologia.37.e5561510.3897/zoologia.37.e55615.figure1 |
container_title |
Zoologia |
container_volume |
37 |
container_start_page |
1 |
op_container_end_page |
6 |
_version_ |
1810473773129793536 |