PHENOLOGY, SEED DISPERSAL, AND COLONIZATION IN MUNTINGIA CALABURA, A NEOTROPICAL PIONEER TREE

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Abstract
In this paper we describe the phenology, fruiting ecology, and colonization ability of a widespread neotropical pioneer tree, Muntingia calabura (Eleocarpaceae), in Costa Rican dry tropical forest. Individuals of M. calabura grow rapidly, flower at M. calabura at our study site, and they concentrate their attention on this species at its fruit peak when few alternate fruits are available. Germinable M. calabura seeds accumulate in the forest soil in relatively high density in areas of high frugivore activity. M. calabura can quickly invade large disturbed areas with a high density of seedlings. Adult densities decline from thousands of individuals/ha to a few individuals/ha in a relatively few years. Clumps of M. calabura trees are replaced by later successional species in < 30 yr.
Funding Information
  • National Science Foundation (DEB 75‐23450, 78‐26493, 81‐04865)