Mass allocation, moisture content, and dispersal capacity of wind-dispersed tropical diaspores
Among 34 wind-dispersed tree species on Barro Colorado Island, Panama, the wet mass of diaspores ranges over six orders of magnitude, The seed mass as a percentage of diaspore mass (S/D) varies greatly among species from 14 to 94% with a mean value of 61% The mean percent moisture of diaspores is 10...
| Publié dans: | The New phytologist. - 1979. - 108(1988), 3 vom: 25. März, Seite 357-368 |
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| Auteur principal: | |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
1988
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| Accès à la collection: | The New phytologist |
| Sujets: | Journal Article Dispersal capacity fruits vs. seeds mass moisture content wind-dispersed diaspores |
| Résumé: | Among 34 wind-dispersed tree species on Barro Colorado Island, Panama, the wet mass of diaspores ranges over six orders of magnitude, The seed mass as a percentage of diaspore mass (S/D) varies greatly among species from 14 to 94% with a mean value of 61% The mean percent moisture of diaspores is 10% no consistent differences occur between seed and non-seed components of diaspores in percent moisture. Wing-loading (weight/area) and hence dispersal capacity varies over one order of magnitude among these species and is correlated more highly with S/D than with percent moisture of diaspores. Compared to fruit diaspores, seed diaspores have less mass and a greater S/D, and are slightly more dehydrated. As a result, seed diaspores have lower wing-loading and greater dispersal capacity than fruit diaspores. The morphological/aerodynamic features of a diaspore also have a significant effect on the mass variables. Overall, the type of diaspore (fruit or seed) is of major importance in explaining mass differences of diaspores among these wind-dispersed species; morphological features and dehydration ability contribute secondarily |
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| Description: | Date Revised 20.04.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/j.1469-8137.1988.tb04174.x |