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1 December 2000 Reproductive Phenology of a Tropical Canopy Tree, Spondias mombin
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Abstract
We studied the reproductive phenology of isolated populations of Spondias mombin to determine the degree of flowering and fruiting synchrony among populations and to examine spatial and temporal variability in fruit production. The study was conducted on six small islands (1.8–3.5 ha) in the Panama Canal. All individuals (10 cm in diameter at breast height (DBH) were marked in 1991 and censused each year through 1994 to record recruits and deaths. All marked trees were censused monthly for flowering and fruiting activity from April 1992 through December 1995. Spondias mombin was seasonal and highly synchronous in flower and fruit production among islands and across years. Proportions of individuals fruiting varied among islands, years, and tree size classes. There was a positive relationship between probability of fruit production and tree size. Synchronous reproductive activity in S. mombin probably was due to responses to proximate environmental cues such as fluctuations in irradiance, but other factors must have been responsible for temporal and spatial variation in reproductive performance. We suggest that this variation may have been due partly to temporal and spatial differences in pollinator abundance.
Gregory H. Adler and Kathleen A. Kielpinski "Reproductive Phenology of a Tropical Canopy Tree, Spondias mombin1," BIOTROPICA 32(4), (1 December 2000). https://doi.org/10.1646/0006-3606(2000)032[0686:RPOATC]2.0.CO;2
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