Seed Predation on Brazil Nuts (Bertholletia excelsa) by Macaws (Psittacidae) in Madre de Dios, Peru1

Mandar R. Trivedi; Fernando H. Cornejo; Andrew R. Watkinson

doi:10.1646/03050

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Mandar R. Trivedi,¹ Fernando H. Cornejo,² Andrew R. Watkinson³

¹aSchool of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, England
²bAsociación para la Conservación de la Cuenca Amazónica (A.C.C.A.), Calle Cusco 499, Puerto Maldonad
³cSchools of Biological and Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, Engla

Abstract

We investigated the impact of seed predation by large macaws (Ara spp.) on Brazil nut, the seed of Bertholletia excelsa (Lecythidaceae). Counts of macaw-damaged fruit below 50 focal trees in a Peruvian Brazil nut harvesting concession indicated that macaws destroyed about 10 percent of the concession's crop. We compared this impact to other sources of variation in profits from harvesting and suggest methods to compensate harvesters while encouraging them to conserve macaws in their concessions.

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Mandar R. Trivedi, Fernando H. Cornejo, and Andrew R. Watkinson "Seed Predation on Brazil Nuts (Bertholletia excelsa) by Macaws (Psittacidae) in Madre de Dios, Peru," BIOTROPICA 36(1), 118-122, (1 March 2004). https://doi.org/10.1646/03050

Published: 1 March 2004

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Ara

Bertholletia excelsa

Brazil nut

Lecythidaceae

macaw

moist tropical forest

Peru

Psittacidae

seed predation

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