Publications des scientifiques de l'IRD

Barot Sébastien, Mitja Danielle, Miranda I., Meija G.D., Grimaldi Michel. (2005). Reproductive plasticity in an Amazonian palm. Evolutionary Ecology Research, 7 (7), p. 1051-1065. ISSN 1522-0613.

Titre du document
Reproductive plasticity in an Amazonian palm
Année de publication
2005
Type de document
Article référencé dans le Web of Science WOS:000233367300007
Auteurs
Barot Sébastien, Mitja Danielle, Miranda I., Meija G.D., Grimaldi Michel
Source
Evolutionary Ecology Research, 2005, 7 (7), p. 1051-1065 ISSN 1522-0613
Question: How plastic is the reproductive strategy of palm trees? Hypothesis: The onset of reproduction and sex allocation depend on both the size and the type of environment that determines the availability of resources. Organisms: The palm tree Attalea speciosa Mart. ex Spreng. It grows in both primary forests and disturbed sites. in a wide range of edaphic and climatic conditions. Field site: The Brazilian state of Para near the town of Maraba. on the commune of Benfica. The pioneer front. i.e. where primary or slightly degraded rain forest is turned into pastures by recently settled farmers. Methods: Deforestation was used as a large-scale experiment. The effect of size (number of leaves or total height) on the onset of reproduction and sex allocation was compared in three environments: a forest. a partially invaded pasture and a pure stand of palm tree (babassual). Conclusions: Reproduction starts at smaller sizes in the pasture and the babassual than in the forest. with height being a better predictor of reproduction than number of leaves in the forest. Male reproduction starts at smaller heights than female reproduction in the pasture and the babassual but not in the forest.
Plan de classement
Sciences du monde végétal [076] ; Etudes, transformation, conservation du milieu naturel [082]
Localisation
Fonds IRD [F B010065785]
Identifiant IRD
PAR00000545
Contact