Data/hora: 05/06/2024 00:45:11

Biblioteca(s): 	Embrapa Amazônia Oriental.	
Data corrente: 	04/07/2003	
Data da última atualização: 	12/12/2016	
Autoria: 	CARVALHO, J. O. P. de.	
Afiliação: 	JOÃO OLEGÁRIO PEREIRA DE CARVALHO, CPATU.	
Título: 	Changes in the spatial distribution of tree species in a terra firme rain forest in Brazilian Amazonia after logging.	
Ano de publicação: 	2002	
Fonte/Imprenta: 	Revista de Ciências Agrárias, Belém, PA, n. 37, p. 53-70, jan./jun. 2002.	
Idioma: 	Inglês	
Conteúdo: 	The objective of this paper was to determine changes in the spatial distribution of tree species in a logged compared to an unlogged forest of the Tapajos National Forest in the municipality of Belterra, State of Para, Brazil, over an eight-year period. The distribution pattern was determined for trees> 5 cm dbh and, also, for trees > 30 cm dbh. The relationship (a quadrate method) discussed by McGinnis was selected to be used in this study. Forty-seven percent of species with trees > 5 cm dbh showed clumped distribution in the studied forests. Geissospermwn sericeunz Benth & Hook., Minquartia guianensis Aubl., Poureria bilocularis (H. Winkler) Bachni, Protium guacayantan Cuatrec, Sclerolobium chrysophyllunz Poepp. et Endl. and the Sapotaceae family (9 species) occurred in clumps of small trees (5 cm 5 dbh < 30 cm) and big trees (dbh > 30 cm) in both the logged and undisturbed forest. Trees in all sizes of these species certainly have aggregation characteristics in different light condition's during the whole growth-cycle. Only Sclerolobium cizzysophylltan out of fourteen species that occurred aggregated in all forest conditions was light demanding. The shade-tolerant Lecythis lurida (Miers) Mori and Manilkara huberi (Ducke) Stand!. showed also aggregated distribution for small and big trees in the unlogged forest. An aggregated distribution is not always directly correlated to abundance, considering that most of the clumped species had less than seven trees per hectare.	
Palavras-Chave: 	Brasil; Distribuição espacial; Espécie arborea; Floresta Nacional do Tapajós; Pará.	
Thesagro: 	Essência Florestal.	
Thesaurus Nal: 	Amazonia.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/147575/1/2267-8889-1-PB.pdf	
Registro original: 	Embrapa Amazônia Oriental (CPATU)	
Exemplares: 	CPATU - (32385-1) - UPC - AP - PP - 630.5 - R18 - 129 - DIS