Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile
ABSTRACT 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 en...
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2020
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ftsmithonian:oai:figshare.com:article/14328482 2023-05-15T18:05:16+02:00 Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile Andrés Muñoz-Pedreros (10484198) Heraldo V. Norambuena (10484201) Claudia Gil (10484204) Jaime Rau (10484207) 2020-03-01T23:37:24Z https://doi.org/10.6084/m9.figshare.14328482.v1 unknown https://figshare.com/articles/dataset/Selective_consumption_of_rodents_by_the_Variable_hawk_Geranoaetus_polyosoma_Accipitriformes_Accipitridae_in_the_Atacama_Desert_northern_Chile/14328482 doi:10.6084/m9.figshare.14328482.v1 CC BY 4.0 CC-BY Zoology Diet predation Red-backed hawk trophic ecology Dataset 2020 ftsmithonian https://doi.org/10.6084/m9.figshare.14328482.v1 2021-04-11T16:04:16Z ABSTRACT 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). Dataset Rattus rattus Unknown Waterhouse ENVELOPE(155.700,155.700,-81.417,-81.417) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Zoology Diet predation Red-backed hawk trophic ecology |
spellingShingle |
Zoology Diet predation Red-backed hawk trophic ecology Andrés Muñoz-Pedreros (10484198) Heraldo V. Norambuena (10484201) Claudia Gil (10484204) Jaime Rau (10484207) Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile |
topic_facet |
Zoology Diet predation Red-backed hawk trophic ecology |
description |
ABSTRACT 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 |
Dataset |
author |
Andrés Muñoz-Pedreros (10484198) Heraldo V. Norambuena (10484201) Claudia Gil (10484204) Jaime Rau (10484207) |
author_facet |
Andrés Muñoz-Pedreros (10484198) Heraldo V. Norambuena (10484201) Claudia Gil (10484204) Jaime Rau (10484207) |
author_sort |
Andrés Muñoz-Pedreros (10484198) |
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 |
publishDate |
2020 |
url |
https://doi.org/10.6084/m9.figshare.14328482.v1 |
long_lat |
ENVELOPE(155.700,155.700,-81.417,-81.417) |
geographic |
Waterhouse |
geographic_facet |
Waterhouse |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_relation |
https://figshare.com/articles/dataset/Selective_consumption_of_rodents_by_the_Variable_hawk_Geranoaetus_polyosoma_Accipitriformes_Accipitridae_in_the_Atacama_Desert_northern_Chile/14328482 doi:10.6084/m9.figshare.14328482.v1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.14328482.v1 |
_version_ |
1766176735995363328 |