Herrero-Jauregui Cristina, Sist Plinio, Casado Miguel A.. 2012. Population structure of two low-density neotropical tree species under different management systems. Forest Ecology and Management, 280 : 31-39.
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Quartile : Q1, Sujet : FORESTRY
Résumé : This article analyses the density, spatial distribution, and diameter structure of two neotropical tree species, Dipteryx odorata (Aubl.) Willd. and Copaifera reticulata Ducke, in undisturbed forests, logged forests, and forests used for the extraction of Non-Timber Forest Products (NTFPs). Both species are commercially harvested for timber and non-timber products which can fetch high prices on national and international markets. In undisturbed forests, both species display a low tree density, a random adult tree distribution pattern and a flat diameter structure, or one biased towards larger trees. The random spatial distribution pattern did not vary in the three types of forests analysed, whereas individual density and diameter structure did. The NTFP extraction areas exhibited the highest population densities for both species. In the logged forests, there was a lower density of very large D. odorata trees, while the areas used for D. odorata seed extraction showed a drastic reduction in the frequency of young trees. The results of this study seem to suggest that oil extraction from C. reticulata does not have any effect on the regeneration of that species, whereas D. odorata seed collection could affect the viability of populations.
Mots-clés Agrovoc : Dipteryx odorata, Copaifera, forêt tropicale, peuplement forestier, produit forestier non ligneux, espacement, distribution spatiale
Mots-clés géographiques Agrovoc : Brésil, Amazonie
Mots-clés complémentaires : Copaifera reticulata
Classification Agris : K10 - Production forestière
F40 - Écologie végétale
K01 - Foresterie - Considérations générales
Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique
Auteurs et affiliations
- Herrero-Jauregui Cristina, Universidad Complutense de Madrid (ESP)
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Sist Plinio, CIRAD-ES-UPR BSef (FRA)
ORCID: 0000-0002-4565-4417
- Casado Miguel A., Universidad Complutense de Madrid (ESP)
Source : Cirad - Agritrop (https://agritrop.cirad.fr/564983/)
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