Inventário florestal de um hectare de mata de terra firme km 30 da Estrada Manaus - Itacoatiara

Prance, Ghillean Τ.; Rodriques, W.A.; Silva, M.F. da.

doi:10.1590/1809-43921976061009

Cited by 139 publications

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“…Cerca de 65% dessa região é coberta por um tipo florestal denominado floresta de terra firme, caracterizada principalmente pela elevada riqueza e diversidade de espécies (Prance, 1976;Amaral, 1996;Oliveira & Mori, 1999;Lima Filho et al, 2001;Oliveira et al, 2003).…”

Section: Introductionunclassified

“…Os estudos estruturais e florísticos desenvolvidos na Amazônia têm demonstrado que os ambientes florestais de terra firme, ou seja, as florestas de platô e vertente, apresentam alta diversidade, representada por poucos indivíduos de cada espécie (Porto et al, 1976;Prance et al 1976;Amaral, 1996;Oliveira, 1997;Lima Filho, 2001) e alta dissimilaridade florística entre parcelas adjacentes (Campbell et al, 1986;Ferreira & Prance, 1998).…”

Section: Introductionunclassified

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Florística e fitossociologia de uma floresta de vertente na Amazônia Central, Amazonas, Brasil

2004

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RESUMOO estudo florístico e fitossociológico de árvores, palmeiras e lianas com diâmetro à altura do peito (DAP) $ 10 cm, em uma floresta de vertente na Amazônia Central (2º35'45" S e 60º12'40" W), foi realizado empregando-se 20 parcelas de 50 x 10 m, distribuídas em dois transectos paralelos de 500 x 10 m. Foram registrados 771 indivíduos, pertencentes a 50 famílias, 120 gêneros e 239 espécies. Das espécies amostradas, 44% são "localmente raras". Sapotaceae, Lecythidaceae, Fabaceae, Caesalpiniaceae e Chrysobalanaceae constituíram as cinco famílias com maior riqueza de espécies e número de indivíduos. Dos 771 indivíduos amostrados, mais de 65% apresentaram DAP $ 20 cm. As espécies Eschweilera bracteosa e Protium apiculatum apresentaram os maiores valores de IVI. Cerca de 83% das espécies encontram-se distribuídas aleatoriamente no hectare amostrado. O índice de diversidade Shannon-Wiener foi de 5,01 nats.indivíduo -1 , com uniformidade de 0,91, valores altos no contexto de levantamentos semelhantes na região. A heterogeneidade edáfica e topográfica da área, as taxas de recrutamento de novos indivíduos e de espécies "localmente raras" à comunidade local, podem ter contribuído para as altas dissimilaridade (36,2%) e diversidade florísticas documentadas neste estudo. PALAVRAS-CHAVE fitossociologia, diversidade, Terra firme, Amazônia CentralFloristic and phytosociology of a slope forest in Central Amazonia, Amazonas, Brazil. Amazonia (2º35'45 "S and 60º12'40" W) ABSTRACT The floristic and phytosociological study of trees, palms and lianas with diameter at breast height (DBH) $ 10 cm in a forest slope in Central

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Section: Introductionunclassified

Florística e fitossociologia de uma floresta de vertente na Amazônia Central, Amazonas, Brasil

2004

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“…A previous inventory in the same region (Prance et al, 1976) observed 191 species > 10cm DBH in 36 families. A preliminary estimate for the present study is more than 124 species per hectare based on data from only 29 of the 37 families occurring in the one hectare Reserve 1105…”

Section: Familymentioning

confidence: 74%

“…Of all these studies, the only two which can be compared at the species level are Prance et al (1976) and the present study. The former was conducted on a one ha plot at the Comissão Executiva do Plano da Lavoura Cacaueira (CEPLAC) field station on the Manaus-Itacoatiara Highway AM-010, some 40km to the south of the BDFF study area.…”

Section: Comparisons With Other Regional Inventoriesmentioning

confidence: 99%

Preliminary Results of a Large-Scale Tree Inventory of Upland Rain Forest in the Central Amazon

et al. 1992

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A large-scale inventory of trees > 10cm DBH was conducted in the upland "terra firme" rain forest of the Distrito Agropecuário da SUFRAMA (Manaus Free Zone Authority Agricul tural District) approximately 65Km north of the city of Manaus (AM), Srasil. The general appearance and structure of the forest is described together with local topography and soil texture. The preliminary results of the Inventory provide a minimum estimate of 698 tree species in 53 families in the 40Km radius sampled, including 17 undescribed species. The most numeri cally abundant families, Lecythidaceae, Leguminosae, 5apotaceae and Burseraceae as also among the most species rich families. One aspect of this diverse assemblage is the proliferation of species within certain genera, Including 26 genera In 17 families with 6 or more species or morphospecies. Most species have very low abundances of less than 1 tree per hectare. While more abundant species do exist at densities ranging up to a mean of 12 trees per ha, many have clumped distributions leading to great variation in local species abundance. The degree of similarity between hectare samples based int the Coefficient of Community similarity Index varies widely over different sample hectares for five ecologically different families. Soil texture apparently plays a significant role In determining species composition in the different one hectare plots examined while results for other variable were less consistent. Greater differences in similarity indices are found for comparisons with a one hectare sample within the same formation approximately 40Km to the south. It is concluded that homogeneity of tree commu nity composition within this single large and diverse yet continuous upland forest formation can not be assumed.

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“…Such fly pollination is of particular interest in that Sterculia trees can occur as relatively isolated individuals in the forest. Prance, Rodrigues and Silva (1976) located only one specimen of Sterculia aff. pruriens in a survey of 1 ha of amazonian forest and we have likewise encountered solitary and successfully fruiting trees.…”

Section: Floral Biologymentioning

confidence: 99%

FLORAL BIOLOGY AND BREEDING SYSTEM OF STERCULIA CHICHA ST. HIL. (STERCULIACEAE)

Taroda¹,

Gibbs

1982

New Phytologist

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SUM M A R YThe neotropical, monoecious, forest species Stercidia chicho has been shown to have flowers which are adapted for pollination by Diptera, such as mediutn-sized species of the sapromyophilous genera Acrogtossa, Cochliomya, Gaemnochaetopsis, Ornidia and Parasarcophaga. Controlled pollination experiments show that the species is self-incompatible. The fact that pollen tube growth proceeds to the ovule following both compatible and incompatible pollinations suggests that the incompatibility mechanism is based on the non-fusion of gametes iti the embryo sac, as in the ' Tlteot>roma-type\ originally known only in the related Theohrnma cacao.

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Inventário florestal de um hectare de mata de terra firme km 30 da Estrada Manaus - Itacoatiara

Cited by 139 publications

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Florística e fitossociologia de uma floresta de vertente na Amazônia Central, Amazonas, Brasil

Florística e fitossociologia de uma floresta de vertente na Amazônia Central, Amazonas, Brasil

Preliminary Results of a Large-Scale Tree Inventory of Upland Rain Forest in the Central Amazon

FLORAL BIOLOGY AND BREEDING SYSTEM OF STERCULIA CHICHA ST. HIL. (STERCULIACEAE)

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