The growing fragmentation of natural habitats intensifies the necessity to evaluate biological diversity contained in plant remnants. Composicao, estrutura e. Índice de equitabilidade de Pielou (E) Medida da abundância relativa das espécies E=H ́ /H ́ max. em que: • H ́ = índice de diversidade de Shannon; • H ́ max. 4 nov. Índice de Pielou Bárbara Lima Santiago da Costa Índice de Pielou (Equabilidade ): É derivado do índice de diversidade de Shannon e permite.
|Published (Last):||2 November 2013|
|PDF File Size:||10.66 Mb|
|ePub File Size:||4.18 Mb|
|Price:||Free* [*Free Regsitration Required]|
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. The ant fauna of a tropical rain forest: Journal of Ecology9: The differences encountered among the floristic compositions and structures between the areas, even when considering a same type of soil, indicates a high heterogeneity of the cerrado vegetation.
At PNSC, the variation of vegetation occurred along gradients of fertility, acidity, salinity, texture and altitude. Segundo Silva et al. In this study, we investigated the woody vegetation of the cerrado sensu stricto savanna woodland physiognomy that occur on Entisols Quartzarenic Neosols and the relationship between the floristic and structure variations regarding the soils characteristics and altitude.
Diversity is one of the most important attributes in the study of communities and, as a result, many methods are available to its measurement.
Equabilidade de pielou pdf
The forest community can be considered well-structured, mature squabilidade diverse, and so it is in good state of conservation. Programa Calha Norte, Desmatamento no sul do Estado de Roraima: Measures of species diversity in ecology: The diversity index of Shannon-Weaver was 2.
Species richness vs evenness: The higher densities of individuals were observed in the pioneer trees ha-1followed by secondary trees ha-1 and climax species trees ha Diversity, Frament and Structure. The growing fragmentation of natural habitats intensifies the necessity to evaluate biological diversity contained in d remnants.
Botanical Journal of the Linnean Society For the seven phytosociological parameters evaluated, the species that stood out were Mimosa ophthalmocentraPoincianella pyramidalisSenegalia bahiensisSenegalia paniculataCroton blanchetianus and Mimosa tenuifloraindicating that these are the species best adapted to the environment assessed, both in environmental conditions and competition with other species present in the equabilidafe of Caatinga in Arcoverde-PE.
equaiblidade Climatologia e Estudos da Paisagemv. De maneira semelhante, quando a tende a 1 e. The importance values VI were higher for Pentaclethra macroloba Diversity, diversity indices and tropical cockroaches. Equabilidade significato e sinonimi di equabilidade nel.
One of them is diversity profile, which includes not one index but many diversity indices differing in the weight given to each component.
What do we win ‘confounding’ species richness and evenness in a diversity index?
All trees with breast diameter DBH above 10 cm in nine 1-ha-permanent plots x m each were dw. The structure of species abundance and measurement of diversity.
Adriano Sanches Melo 1. How to cite this article.
Comprehensive Summaries of Uppsala Dissertations. Princeton University Press, The lack of an objective criteria to guide appropriate weighting of each component results in an arbitrary decision to use an index and not another. Estimating the effectiveness of further sampling in species inventories.
Acta Amazonic a, Also, diversity indices applied to samples differing in species richness and evenness may produce similar values. Productivity and history as predictors of the latitudinal diversity gradient of terrestrial birds.
The New York Botanical Garden, Distribution of tropical american rain Forest species in the light of sucessional processes. These indices are composed of or confound two components, species richness and evenness.