Mortality and recruitment of trees in a secondary montane rain forest in Southeastern Brazil
Braz. j. biol
;
63(1): 47-60, Feb. 2003. ilus, mapas, tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-343394
ABSTRACT
Mortality and recruitment rates were obtained for tree species over a 5.6 year period in a 1-ha fragment of secondary montane rain forest in Southeastern Brazil. All plants with a diameter at breast height (dbh) > 8 cm were sampled in 1989-1990 and 1995. There was an increase from 90 to 96 species, and 669 ind./ha to 749 ind./ha over the period. The mortality rate of 1.67 percent/yr was similar to findings for other forests, while recruitment of 3.46 percent/yr was the highest rate reported. Both mortality and recruitment were significantly higher in the smaller dbh classes. Recruitment was higher among rare species, and the relatively slow-growing species had significantly higher mortality rates. Differences between species dynamics were marked. Species with high values of l were mainly early successional and understorey trees but some understorey species also suffered a marked population decline. The classification system of species in response to light which divides understorey species into "partial shade-bearers" and "shade-bearers" groups showed to be the most suitable to the obtained results. The results suggest that this forest is undergoing a process of recovery from past disturbance
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Árboles
/
Clima Tropical
/
Ecología
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Braz. j. biol
Asunto de la revista:
Biologia
Año:
2003
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade de São Paulo/BR
/
Universidade de Taubaté/BR
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