Conservation puzzle: Endangered hyacinth macaw depends on its nest predator for reproduction
Nenhuma Miniatura disponível
Data
2008-03-01
Autores
Pizo, Marco Aurelio
Donatti, Camila I.
Guedes, Neiva Maria R.
Galetti, Mauro [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
In the Pantanal wetlands of Central Brazil, the endangered hyacinth macaw (Anodorhynchus hyacinthinus), the largest psitacid in the world, makes its nest almost exclusively in natural hollows found in the manduvi tree (Sterculia apetala). The recruitment of manduvis greatly depends on the seed dispersal services provided by the toco toucan (Ramphastos toco), responsible for 83.3% of the seed dispersal. The toco toucan, however, is responsible for about 53% of the preyed eggs, resulting in a case of conflicting ecological pressures in which the reproduction of the hyacinth macaw is indirectly dependent on the seed dispersal services of its nest predator. The case illustrates the intricacies of biotic interactions in species-rich environments where species may be tied by indirect, subtle ecological links which conservationists should be aware of. (c) 2008 Elsevier Ltd. All rights reserved.
Descrição
Palavras-chave
frugivory, indirect effects, plant recruitment, nest predation, seed dispersal, toco toucan
Como citar
Biological Conservation. Oxford: Elsevier B.V., v. 141, n. 3, p. 792-796, 2008.