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.

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In this study, differences in the floristic composition, structure and environmental characteristics were also investigated, based in quantitative samplings, between equabiliddae areas of cerrado s.

Hulbert nomeia 1-D para amostras finitas de PIE probability of interspecific encounter. The diversity index of Shannon-Weaver was 2.

Lewis, Equabiliddae ophthalmocentra Mart. Veuillez utiliser cette adresse pour citer ce document: Dentre elas podem ser citadas: Comparison of different methods for diversity ordering.

Among them, non-parametric diversity or heterogeneity indices such as Shannon and Simpson formulae are widely employed in a range of studies. From the survey of species composition and structure of the tree component in a remnant of semideciduous.

Cada parcela permanente foi subdividida em subparcelas 10 x 10 m cadainiciando-se pelo canto sudoeste. Relationships among indices suggest that richness is an incomplete surrogate for grassland biodiversity.


Diversity, biotic and similarity indices: A consumer’s guide to evenness indices. Qualea paraensis 10 ind. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.

Different indices can be obtained combining the two components with different weights. International Co-operative Publishing House, Fairland. Modelling the known and unknown plant biodiversity of the Amazon basin.

What do we win ‘confounding’ species richness and evenness in a diversity index?

De maneira semelhante, quando a tende a 1 e. The biological dynamics of tropical rainforest fragments. Tropical forest remnants, ecology, management, and conservation of fragmented equabilidafe. The floristic and phytosociological studies contribute significantly to the knowledge of forest formations by showing the richness and diversity of the environments evaluated.

Except by species richness, the cited alternative methods show graphically much more information than that contained in a single value produced by a diversity index.

Equabilidade de pielou pdf

In this study, we investigated the woody vegetation of the cerrado sensu stricto savanna woodland physiognomy equbilidade occur on Entisols Quartzarenic Neosols and the relationship between the floristic and structure variations regarding the soils characteristics and altitude. R package, version 1. Amazon species, diversity, Fabaceae, Pentaclethra macroloba. At PNSC, some of the soils sampled in the plots have a solodic characteristic, because of the high amounts of sodium, related to areas with higher altitudes.


Acta Amazonica Seasonally dry tropical forests. Podemos perceber isto melhor com um exemplo simples. Por exemplo, Condit et al.

Diversity statistics and the Log-Series model. Diversity, Frament and Structure. Families that stood out most were Mimosaceae, Euphorbiaceae, Anacardiaceae, Caesalpiniaceae and Rhamnaceae. The study was conducted in 40 plots 10 x 25 m with inclusion level the circumference at 1. Quantifying the effects of nutrient addition on community diversity of serpentine vegetation using parametric entropy of type a. Species richness vs evenness: Also, diversity indices applied to samples differing in species richness and evenness may produce similar values.

Global Change Biology In these cerrados, the superior limits of tree height were larger than what is usually described for cerrado s. The species sampled are a mixture of species with widespread distributions within the biome, species typically from the cerrado of the Northeast and others species that occur in the Caatinga biome.