Descubre y comparte nuestro conocimiento público

Se han encontrado 35 recursos

Resultados de búsqueda

Inter-specific patterns of seed longevity in the soil, germination, and survival and growth of transplanted seedlings under closed canopy of nine trees, Cordia alliodora, Hampea appendiculata, Jacaranda copaia, Laetia procera, Rollinia microsepala, Simarouba amara, Stryphnodendron microstachyum, ...


Guariguata, M.R.[Seed and seedling ecology of tree species in neotropical secondary forests: management implications]Seed and seedling ecology of tree species in neotropical secondary forests: management implications

The continuous monitoring from 1988 to 1995 of thinned and control Okoumé stands in the coastal forest of Gabon helps to evaluate the relevance of silvicultural treatment with regard to sustainable management. The stands, almost even-aged, are grouped according to their ages. The homogeneity of s...


Fuhr, M.Nasi, RobertMinkoue, J.M.[Les peuplements d'Okoumes eclaircis au Gabon]Les peuplements d'Okoumes eclaircis au Gabon

C. H. Cannon et al. report an increase in tree diversity 8 years after selective logging in Borneo. These results accord with theoretical expectations and with previous observations; however, the significance of these findings is debatable. Cannon et al.'s analyses are confounded by differences i...


Sheil, DouglasSayer, Jeffrey A.O'Brien, T.[Tree diversity and conservation in logged rainforest]Tree diversity and conservation in logged rainforest
Poorter, L.Hawthorne, W.Bongers, F.Sheil, Douglas[Maximum size distributions in tropical forest communities: relationships with rainfall and disturbance]Maximum size distributions in tropical forest communities: relationships with rainfall and disturbance

Researchers frequently compare rates of change based on counts (e.g. mortality, germination, infection, recruitment). The estimation of mortality and recruitment rates from tree census data have been discussed elsewhere. However, rather than estimating absolute rates, researchers may often need t...


Sheil, Douglas[A simple graphical method for the comparisons of mortality, recruitment and other count defined 'event-rates']A simple graphical method for the comparisons of mortality, recruitment and other count defined 'event-rates'

Ten papers from the full proceedings of the above conference providing results of more complete work on the diverse aspects of regeneration and early growth. The conference discussed the theme broadly and encompassed theoretical and applied aspects, plantation and 'close-to-nature' silviculture, ...


Skovsgaard, J.P.Vanclay, J.K.[Regeneration success and early growth of forest stands and selected papers from an IUFRO Conference held in Copenhagen in June 1996]Regeneration success and early growth of forest stands and selected papers from an IUFRO Conference held in Copenhagen in June 1996

The study characterised stand structure and floristic composition of woody life forms in three, 16-18 year old secondary stands that regenerated after pasture abandonment, and three nearby old-growth stands of tropical rainforest in lowland Costa Rica. Basal area and stem density for each of four...


Guariguata, M.R.Chazdon, R.L.Denslow, J.S.Dupuy, J.M.Anderson, L.[Structure and floristic of secondary and old growth stands in lowland Costa Rica]Structure and floristic of secondary and old growth stands in lowland Costa Rica

The reproductive output of Shorea siamensis, a widespread dipterocarp tree, was assessed in relation to disturbance and tree density at three sites in western Thailand during the 1996 and 1997 flowering seasons. The locations were similar except in disturbance history, which was reflected in decr...


Ghazoul, J.Liston, K.A.Boyle, T.J.B.[Disturbance-induced density-dependent reproductive success in a tropical forest tree]Disturbance-induced density-dependent reproductive success in a tropical forest tree

The mating system in 11 natural populations of Pterocarpus macrocarpus Kurz in Thailand was investigated based on the mixed mating model using 16 isozyme markers. Single-locus outcrossing rates (tm) ranged from 0.719 to 0.959. Both ts and tm revealed a geographic pattern with western populations ...


Liengsiri, C.Boyle, T.J.B.Yeh, F.C.[Mating system in Pterocarpus macrocarpus Kurz in Thailand]Mating system in Pterocarpus macrocarpus Kurz in Thailand

Two types of materials, six compositions of extractions buffer and three electrophoretic buffer system were studied to establish optimum procedures for obtaining good resolution of 14 enzyme systems in 12 species of Shorea which belongs to the family of Dipterocarpaceace. Thirteen (13) enzyme sys...


Sudarmonowati, E.Hartarti, N.S.Siregar, U.J.[Establishment of biochemical genetic markers techniques for Shorea spp.- tropical forest tree species]Establishment of biochemical genetic markers techniques for Shorea spp.- tropical forest tree species

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso