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Guess who comes for dinner: other vertebrates in harpy eagle nests

Published: Monday, 18 December 2017
Credit: Helena Aguiar-Silva

Camera traps recorded several arboreal vertebrate species in or near harpy eagle (Harpia harpyja) nests in commensalistic and even aggressive interactions. The findings are part of the doctoral thesis in Ecology of Helena Aguiar-Silva on resource use by harpy eagles, and have recently been published in the Journal of Raptor Research.

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Spotted like a jaguar: a new tree frog from the southern Amazon

Published: Friday, 08 December 2017
Credit: Rafael de Fraga (holotype), Miquéias Ferrão (tadpoles )

A new tree frog species of the genus Scinax has been described for the southern Amazon region by Miquéias Ferrão and colleagues. The description, which derives from the doctoral project of Mr. Ferrão, was published recently in ZooKeys.

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Insularization effects on bird acoustic signals

Published: Sunday, 19 November 2017
Credit: Renato Cintra

For his master's project in Ecology, Thiago Bicudo analyzed the effect of lanscape changes on the scructural and temporal parameters of the vocalization of two suboscine birds that are common in primary forests, Lipaugus vociferans and Tyranneutes virescens. The former species is one of the trademark voices in Amazonian rainforests. The study has been recently published in Behavioral Ecology.

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