La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Using Janzen-Connell to predict the consequences of defaunation and other disturbances of tropical forests
Auteurs :	John Terborgh, Auteur
Type de document :	Article
Dans :	Biological Conservation (163 JUL 2013)
Article en page(s) :	7-12
Langues:	Anglais
Résumé :	The Janzen-Connell (J-C) model of tropical tree recruitment and diversity has come of age and can now be applied to predict the consequences of defaunation and other disturbances. J-C describes a process of recruitment at a distance that results from spatially varying rates of seed dispersal and subsequent survival. The per-capita success of seeds is low under reproductive conspecifics where propagules are killed by host restricted enemies (seed predators, herbivores and pathogens). Undispersed seeds consequently experience negligible success, whereas dispersed seeds benefit from escape from enemies. At our site in Amazonian Peril, a scant rain of dispersed seeds (

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