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Salomao R.P.,MCTI Museu Emilio Goeldi | Santana A.C.,Instituto Socio Ambiental E Of Recursos Hidricos | Neto S.V.C.,Institute Pesquisa Cientifica e Tecnologica Do Estado Do Amapa
Floresta | Year: 2012

An important tool for community ecology is multivariate analysis, which treats all variables simultaneously, summarizing data and revealing its structure with the smallest possible loss of information. This study aimed to develop, by multivariate analysis, two phytosociological indices derived from the same variables of the Importance Value Index (IVI), in order to compare such results between the indices by ranking of tree species sampled in a dense rain forest inventory, according to three previously established ecological categories: high, medium and low prevalence. The suitability of factor analysis was determined by Bartlett and KMO tests. Bartlett's test evaluated the overall significance of the correlation matrix indicating that correlations in general were significant at probability of p < 0.01. The KMO test indicated that the variables were correlated and the factorial model presented a good suitability level to the data. These results reinforce factor analysis using for factor extraction and estimating factor species scores. The best index of the three was obtained with factor analysis, which added a dummy variable to each variable in the model. Source


Gomes R.K.S.,Institute Pesquisa Cientifica e Tecnologica Do Estado Do Amapa | Takiyama L.R.,Institute Pesquisa Cientifica e Tecnologica Do Estado Do Amapa | Pereira L.C.C.,Federal University of Para | Silva U.R.L.,Institute Pesquisa Cientifica e Tecnologica Do Estado Do Amapa | Ferreira R.C.M.,Institute Pesquisa Cientifica e Tecnologica Do Estado Do Amapa
Journal of Coastal Research | Year: 2011

The 698 km coastline of the Brazilian state of Amapá includes estuarine (236 km) and Atlantic (462 km) sectors. About 90% of the state's population lives in the coastal zone, where the predominant economic activities are agriculture, fisheries, tourism, and ranching. The aim of the present study was to contribute to the social diagnosis of the estuarine sector of the state through the analysis of three communities located in wetland areas in the municipality of the state capital, Macapá. Guidelines for coastal management were proposed in the context of local conflicts of interest, and the lack of perspective for investments from local or regional authorities. The study took place between April and June, 2010, and was based on questionnaires, interviews, and direct observation. Most residents are relatively young, with no more than a primary education, have no formal employment and earn less than the minimum wage. The majority of the population owns their own residence, although many are squatters, living in stilt houses. Public services are extremely limited and there is no waste disposal or public sanitation system, and no public water supply. The current status of the three communities is the result of the exacerbation of the intrinsic problems of urban growth in the absence of effective public policy. A number of strategies are suggested for improving the situation of the study area, including (i) the implementation of an urban planning program; (ii) investment in local infrastructure and services; and (iii) the participative management of local resources. Source

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