Two Costa Rican Bat-Generated Seed Shadows of Andira Inermis (Leguminosae)
作者： D. H. Janzen , G. A. Miller , J. Hackforth-Jones , C. M. Pond , K. Hooper
DOI: 10.2307/1941072
关键词:
摘要: Bat-generated seed shadows of two mature Andira inermis (W. Wright) DC. trees in the deciduous forest lowlands Guanacaste Province, Costa Rica, are highly hetero- geneous; very unequal numbers seeds deposited beneath used as feeding roosts. It is calculated that a 45-g Artibeus jamaicensis bat may potentially obtain many 1,766 joules (= 422 calories) per fruit round trip 270 m between parent tree and roost. Seed predation by Cleogonus weevils was found to be highest below tree, intermediate under roosts, lowest among fruits dropped accidentally bats
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