Similarity Indices in Community Studies: Potential Pitfalls

Bloom, SA

doi:10.3354/meps005125

Cited by 228 publications

(144 citation statements)

References 7 publications

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“…Esse índice, dado em valores percentuais, apresenta elevada acurácia na determinação da similaridade entre comunidades (Bloom 1981) e indica alta similaridade quando apresenta valores superiores a 50% (Kent & Coker 1992). As comparações foram realizadas preferencialmente com estudos desenvolvidos em Unidades de Conservação e com metodologia de amostragem similar à utilizada no presente estudo.…”

Section: Análises Dos Dadosunclassified

Florística e estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre no parque estadual da Serra de Caldas Novas, Goiás

et al. 2010

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structure of woody vegetation of a "cerrado rupestre" area in Serra de Caldas Novas State Park, Goiás. Biota Neotrop. 10(2): http://www. biotaneotropica.org.br/v10n2/en/abstract?article+bn04010022010.Abstract: (Floristic and structure of woody vegetation of a "cerrado rupestre" area in Serra de Caldas Novas State Park, Goiás): The cerrado stricto sensu is the predominant phytophisiognomy of the Cerrado biome, covering large areas of the Brazilian Central Plateau. When the vegetation grows on rocky soils, it is known locally as "cerrado rupestre". Our knowledge of the tree-shrub communities of this Cerrado vegetation subtype is very limited. The aim of this study was to analyze the floristic composition and structure of tree-shrub vegetation in an area of cerrado rupestre located in the Serra de Caldas Novas State Park (PESCAN), Goiás, Brazil, and to compare the floristic and structural characteristics with those from other areas of cerrado stricto sensu located in Central Brazil. We sampled all individuals with a diameter ≥ 5 cm at 30 cm above ground level, presented in 10 randomly plots of 20 × 50 m. The floristic richness survey revealed 66 species, distributed in 53 genera and 31 botanical families. The studied vegetation had floristic and structural characteristics similar to those recorded in other areas of cerrado stricto sensu growing on deep soils, however, there were some species typically of cerrado rupestre, such as Schwartzia adamantium (Cambess.) Gir. ) as well as the abundance of large individuals of species such as Sclerolobium paniculatum Vogel, Pterodon pubescens (Benth.) Benth., S. adamantium and P. confertiflora. Hence, the flat soil surface of cerrado rupestre of PESCAN did not limit the growth of wood vegetation, nor conditioned the establishment of a distinguished flora. Nevertheless, the elevated structural importance of few wood species typical and adapted of rock environments guarantee some floristic peculiarity of the community survey. Keywords: rock outcrops, Central Brazil, phytossociology, savanna. LIMA, T.A., PINTO, J.R.R., LENZA, E. & PINTO, A.S. Florística e estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre no Parque Estadual da Serra de Caldas Novas, Goiás. Biota Neotrop. 10(2): http://www.biotaneotropica.org.br/v10n2/pt/abstract?article+bn04010022010.Resumo: (Florística e estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre no Parque Estadual da Serra de Caldas Novas, Goiás): O cerrado sentido restrito é a fitofisionomia predominante do bioma Cerrado, ocupando grandes extensões do Planalto Central brasileiro. Quando essa vegetação se desenvolve sobre Neossolos Litólicos recebe a denominação de cerrado rupestre. O conhecimento sobre as comunidades arbustivo-arbóreas deste subtipo fitofisionômico do Cerrado é muito limitado. O objetivo deste estudo foi analisar a composição florística e a estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre localizada no Parque Estadual da Serra de Caldas Novas (PESCAN), Goiás, Brasil ...

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Section: Análises Dos Dadosunclassified

Florística e estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre no parque estadual da Serra de Caldas Novas, Goiás

et al. 2010

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“…Se analizó la semejanza ecológica empleando el índice de Bray-Curtis (Bloom, 1981). Los datos fueron procesados con la rutina MDS para obtener el diagrama de ordenación multivariada de la dieta.…”

Section: Análisis Estadísticounclassified

Distribución Espacial De Las Aves Playeras Limícolas Para Once Zonas Descritas en El Humedal Costero Poza De La Arenilla - La Punta, Callao

Cotillo¹,

Podestá²,

Segura‐Cobeña³

et al. 2018

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The Coastal Wetland "Poza de la Arenilla" (HCPA) located in the district of La Punta (Callao) receives each year a significant group of shorebirds of which no detailed information is available. The present study aims to define the spatial distribution of shorebirds species in the wetland between January 2013 and December 2015 to determine the composition in each of the identified areas. The areas defined for this habitat are: Boulders 1 (CR1), Channel, Chanel wall (MC), Shore, Sandstone shore 1 (OA1), Sandstone, Roquedal 1 (R1), Water mirror 1 (EA1), Roquedal 2 (R2), Water mirror 2 (EA2) and Sandstone shore 2 (OA2). Were recorded 2 species for the family Haematopopidae, 4 for Charadriidae and 13 for Scolopacidae.The species that contributed the most to the habitats and seasons were: Actitis macularius (Linnaeus, 1766), representing the zone Shore (97.59%), and the season spring (27.40%); Charadrius semipalmatus (Bonaparte, 1825), in O.A.1 (36.13%) and summer (25.07%), Arenaria interpres (Linnaeus, 1758), in EA2 (62.81%) and autumn (24.81%). Autumn was the season with the lowest abundance compared to other seasons, this due to not being in the migratory shorebird migration season mostly migrating to the family Charadriidae and Scolopacidae.

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“…Primero, se analizó la semejanza ecológica empleando el índice de BrayCurtis (Bloom, 1981), con el cual se obtuvo una matriz triangular de semejanza ecológica.…”

Section: E S T U D I O M é T O D O S M U L T I V a R I A D O S N O Paunclassified

Variación Temporal De La Riqueza Y Abundancia De Aves Playeras Limícolas en El Humedal Costero “Poza De La Arenilla”- La Punta, Callao

Podestá

Cotillo²,

Segura‐Cobeña³

2017

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Poza de la Arenilla is an artificial wetland created by the construction of two rocks in the southern part of the district of La Punta, which are approximately 18.2 ha. The shorebirds belong in their entirety to the Order Charadriiformes; these belong to the families: Haematopodidae, Charadriidae and Scolopacidae. In order to determine the temporal variation of shorebirds, a study was carried out between January 2013 and September 2016, using the transect methodology; the route was 1,115 km, passing through an urban area on the left side of the transect and a coastal marine area on the right side. For the analysis of the data, the PRIMER v6.0 software was used to determine the seasonal variation of the birds in each season (Summer, Fall, Winter, Spring) and to compare results between seasons. There were 19 species belonging to 3 families of the order Charadriiformes. The species that presented the most numerous populations were Calidris alba "sanderling" (256), Numenius phaeopus "whimbrel" (89), Calidris pusilla "semipalmated sandpiper" (66) and Charadrius semipalmatus "semipalmated plover" (114). The family with the richest shorebirds for this wetland was Scolopacidae with 14 species. The year 2013 presents the greatest species richness (14), with abundance of Charadrius nivosus "snowy plover" and Phalaropus tricolor "Wilson's phalarope".

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Similarity Indices in Community Studies: Potential Pitfalls

Cited by 228 publications

References 7 publications

Florística e estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre no parque estadual da Serra de Caldas Novas, Goiás

Florística e estrutura da vegetação arbustivo-arbórea em uma área de cerrado rupestre no parque estadual da Serra de Caldas Novas, Goiás

Distribución Espacial De Las Aves Playeras Limícolas Para Once Zonas Descritas en El Humedal Costero Poza De La Arenilla - La Punta, Callao

Variación Temporal De La Riqueza Y Abundancia De Aves Playeras Limícolas en El Humedal Costero “Poza De La Arenilla”- La Punta, Callao

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