Biología reproductiva de Eschweilera bogotensis (Lecythidaceae), en la Cordillera Occidental de Colombia
The reproductiva biology of Eschweilera bogotensis (Lecythidaceae) was studied in a premontane forest at Los Farallones de Cali National Park (1650 m) from november 1993 to march 1994. A great number of insects visit the flowers of this tree. Curculionidae and Nitidulidae (Coleoptera) larvae, as well as Cecidomyidae (Diptera) larvae feed on immature flowers, while Pyralidae and Blastobasidae (Lepidoptera) larvae eat ripening fruits. Adult individual s of Staphylinidae (Coleoptera) and Phlaethripidae (Thysanoptera) were observed feeding on pollen. Loss of floral buds due to larval parasitism was as high as 70%. Three species of Hymenoptera were identified as visitors: Trigona amalthea, Eulaema meriana (Apidae), and Epicharis rustica (Anthophoridae). The latter was identifiedas the main pollinator. Fruit set per inflorescence is quite low (three max.), and over 50% of inflorescences get lost. Seed release is carried out by transversal dehiscence of the fruit, releasing 4-7 seeds. Seed dispersal by animals, which eat part of the peel and seeds, is significant. Bites on the fruits observed in the field suggest that the disperser is a rodent, probably a squirrel, common at the study site. Germination of bitten seeds was observed.
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| Format: | Digital revista |
| Language: | spa |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales
1997
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| Online Access: | https://revistas.unal.edu.co/index.php/cal/article/view/17446 |
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