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Genetic variation within and among 11 natural populations of Pterocarpus macrocarpus Kurz. from different forest habitats in Thailand was examined by starch gel electrophoresis of 18 loci coding for 11 enzymes. The species possesses a high level of isozyme variation. The percentage of polymorphic...


Liengsiri, C.Yeh, F.C.H.Boyle, T.J.B.[Isozyme analysis of a tropical forest tree, Pterocarpus macrocarpus Kurz]Isozyme analysis of a tropical forest tree, Pterocarpus macrocarpus Kurz

Twenty nine secondary forest stands with ages over four years were studied near Pucalipa in the Peruvian Amazon. Altogether 102 plant species 10 + cm dbh were recorded in the forest inventories. The most frequent species use group was timber, both in terms of number of species as well as abundanc...


Galvan Gildemeister, O.Sabogal, C.Colan, V.[Potencial productivo de los bosques secundarios de aitura de la zona de Pucalipa, Region Ucayali, Amazonia peruana]Potencial productivo de los bosques secundarios de aitura de la zona de Pucalipa, Region Ucayali, Amazonia peruana

This document describes the application on experimental scale of a silvicultural treatment in a forest selectively logged by a timber company in the humid tropics of Nicaragua. Based on a diagnostic sampling in the La Lupe experimental forest, a silvicultural treatment was designed consisting in ...


Sabogal, C.Castillo, A.Mejia, A.Castañeda, A.[Aplicacion de un tratamiento silvicultual experimental en el bosque de La Lupe, Rio San Juan, Nicaragua]Aplicacion de un tratamiento silvicultual experimental en el bosque de La Lupe, Rio San Juan, Nicaragua
Autor: Snook, L.K.

Big-leaf mahogany was studied on nine mixed-species stands that became established naturally between 2 and 75 years ago after catastrophic disturbances (hurricane blowdown, fire, or bulldozer clearing). More than 50% of adult big-leaf mahogany trees had survived a severe hurricane, leaving 2.8 se...


Snook, L.K.[Regeneration, growth and sustainability of mahogany in Mexico's Yucatan forests]Regeneration, growth and sustainability of mahogany in Mexico's Yucatan forests

Studies predicting diameter at breast height (dbh) from stump height measurements are numerous but none had been conducted in Malinau distric, East Kalimantan. The objective of this study is to develop a relationship between stump height and dbh in order to predict dbh from diameter at estimated ...


Iskandar, H.Hubble, D.L.MacDicken, K.G.[Estimating DBH of commercial trees from stump measurement in Malinau, East Kalimantan]Estimating DBH of commercial trees from stump measurement in Malinau, East Kalimantan

A set of Permanent Sample Plots (PSP) was established in the lowland mixed dipetrocarp forest within PT Inhutani II concession at Malinau (2º45’ – 3º15’N, 116º30’), East Kalimantan (Figure 1). They were designed for comparative studies of conventional logging (CNV) and reduced-impact logging (RIL...


Kartawinata, K.Priyadi, H.Sheil, DouglasRiswan, S.Sist, P.Machfudh[A field guide to the permanent sample plots in the reduced-impact logging block 27 at CIFOR Malinau research forest East Kalimantan]A field guide to the permanent sample plots in the reduced-impact logging block 27 at CIFOR Malinau research forest East Kalimantan
Dey de Pryck, J.Elias, M.Sijapati Basnett, S.[Globalization and employment in forests and tree product value chains: are women losing out?]Globalization and employment in forests and tree product value chains: are women losing out?

The disturbance and destruction of the old-growth forests of the tropics continue to monopolize attention in international fora and the popular media, but a steadily growing land area is covered by secondary forest developing on sites which have been deforested and then abandoned by their owners....


Guariguata, M.R.Finegan, B.[Ecology and management of tropical secondary forest: science, people and policy: proceedings of a conference held at CATIE, Costa Rica, November 10-12, 1997]Ecology and management of tropical secondary forest: science, people and policy: proceedings of a conference held at CATIE, Costa Rica, November 10-12, 1997

Monitoring permanent plots established in pure natural stands of Okoumé (Aucoumea klaineana) in the coastal zone of Gabon from 1987 to 1997 allows reconstitution of the development pattern of such stands from their establishment to the so-called exploitable stage (around 60 years), and assessment...


Fuhr, M.Delegue, M.A.Nasi, RobertMinkoue, J.M.[Dynamique et croissance de l'Okoumé en zone côtière du Gabon]Dynamique et croissance de l'Okoumé en zone côtière du Gabon

This article is a result of a research project to characterize degrated sites in Pucallpa, Peru and determine the adaptability of six native tree species in areas abandoned after agricultural use. Nine farmers were selected for setting-up experimental plots on abandoned land characterized by Ulti...


Soudre, M.Ricse, A.Sabogal, C.Kobayashi, S.Guariguata, M.R.Alegre, J.[Caracterizacion de sitios degradados y adaptabilidad de especies forestales en el ambito de Pucallpa, Ucayali]Caracterizacion de sitios degradados y adaptabilidad de especies forestales en el ambito de Pucallpa, Ucayali

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