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Science 11 July 1975:
Vol. 189. no. 4197, pp. 145 - 147
DOI: 10.1126/science.189.4197.145
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Articles

Behavior of Hymenaea courbaril When Its Predispersal Seed Predator Is Absent

Daniel H. Janzen 1

1 Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor 48104

Members of lowland Costa Rican forest populations of Hymenaea courbaril (Leguminosae) have longer intervals between seed crops, a later age at first reproduction, larger seed crops, and more resin in the pod walls than do the H. courbaril native to Puerto Rico. The primary predispersal seed predators of H. courbaril in Costa Rica, Rhinochenus spp., are absent from Puerto Rico, and it is postulated that this is a major cause of the interpopulation differences.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Tree Dispersion, Abundance, and Diversity in a Tropical Dry Forest.
S. P. Hubbell (1979)
Science 203, 1299-1309
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