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Title: | Diet and Feeding Strategies of the Crested Eagle (Morphnus guianensis) in the Brazilian Amazon |
Other Titles: | Dieta Y Estrategias De Alimentación De Morphnus Guianensis En La Amazoniá Brasileña |
Authors: | Gomes, Felipe Bittioli Rodrigues Sanaiotti, Tânia Margarete Bantel, Carla |
Keywords: | diet feeding behavior marsupial microhabitat nest site predation prey selection raptor rodent Amazonia Brazil Accipitridae Coendou Erethizon dorsatum Mammalia Metatheria Morphnus guianensis Raptores Rodentia Strigidae |
Issue Date: | 2021 |
metadata.dc.publisher.journal: | Journal of Raptor Research |
metadata.dc.relation.ispartof: | Volume 55, Número, 2 |
Abstract: | The Crested Eagle (Morphnus guianensis) is the second largest Brazilian forest eagle. Crested Eagles are distributed from southeastern Mexico to southern Brazil, northern Argentina, and Paraguay; however, the species is one of the least-studied Neotropical raptors. Our objective was to determine diet and feeding strategies for Crested Eagles in the Brazilian Amazon. We recorded Crested Eagle diet at four nests from 2010-2012 through a combination of direct observations from the ground, remote photographs (camera-traps), and pellets and prey remains collected in and under the nests. We identified a total of 79 prey individuals, composed of 21 different prey species. We found that Crested Eagles fed mainly on medium-sized rodents, and medium-sized to large mammals. Prey were mainly nocturnal (70%), including mostly scansorial, cavity-dwelling marsupials and rodents. Fewer prey were diurnal (20%) and these were typified by arboreal, gregarious mammals (monkeys); rare prey included one owl (Strigidae) and one porcupine (Coendou sp.). We suggest that this may indicate a diet not specialized on a particular prey species or group, but rather focused on specific prey behaviors or microhabitats. © 2021 The Raptor Research Foundation, Inc. |
metadata.dc.identifier.doi: | 10.3356/0892-1016-55.2.211 |
Appears in Collections: | Artigos |
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