Use of Indicator Species to Assess Forest Continuity: a Critique

Rolstad, Jørund; Gjerde, Ivar; Gundersen, Vegard; Sætersdal, Magne

doi:10.1046/j.1523-1739.2002.00552.x

Cited by 82 publications

(47 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indicator species analysis (ISA) was applied to assess the preferences of species per area (Rolstad et al, 2002) and to verify that the β diversity among the areas relates to the differences in the composition of species and their densities, reflecting the floristic dissimilarity, as suggested by Magurran (1988), using the TWINSPAN method of classification of vegetation (Two-way Indicator Species Analysis) (KENT, COKER, 1992). After the refinement of the analysis, cut points were adopted as 0-2, 2-5, 5-10, 10-20 and >100 individuals.…”

Section: Methodsmentioning

confidence: 99%

Richness and diversity of Caatinga areas in different successional stages in northeastern Brazil

Ferreira¹,

Silva²,

Silva³

et al. 2016

Sci. For.

View full text Add to dashboard Cite

ResumoNo Nordeste do Brasil, áreas convertidas em pastagens e cultivos agrícolas são frequentemente abandonadas e, por isso, a vegetação recuperada está em diferentes estágios sucessionais. O objetivo do estudo foi caracterizar a diversidade e a estrutura de áreas de vegetação de Caatinga em diferentes estágios sucessionais no Nordeste do Brasil. Foram utilizadas duas áreas: 1) área preservada, sem evidências históricas de eliminação total da vegetação para fins de cultivos agrícolas; 2) área em regeneração, anteriormente ocupada com cultivo de Opuntia ficus-indica Mill., abandonada há cerca de 30 anos. Em cada área os dados foram coletados em 12 parcelas considerando todos os indivíduos com CAP ≥ 6,0 cm. As espé-cies foram classificadas conforme a síndrome de dispersão em anemocóricas, zoocóricas e autocóricas. Para avaliar a diversidade α foram utilizadas estimativas de riqueza, índices de Shannon, equitatividade de Pielou e de Simpson. A diversidade β foi avaliada por meio da análise hierárquica de agrupamentos. Para análise estrutural foram estimados densidade, área basal e valor de importância (VI). A comparação entre as distribuições de diâmetros das áreas foi realizada pelo teste de Kolmogorov-Smirnov. A análise de espécies indicadoras (ISA) foi realizada para identificar a preferência de espécies por uma área. A relação da diversidade β com as diferenças na composição de espécies e suas densidades foi analisada com o TWINSPAN. As duas áreas apresentaram diferenças significativas (p < 0,05) em riqueza, densidade e área basal. Não houve diferença significativa em diversidade. Observou-se a formação de dois conjuntos florís-ticos (40% de dissimilaridade), que foi corroborada pelas análises TWINSPAN e ISA. A área em regeneração, após 30 anos de abandono, apresentou diversidade de espécie similar a área preservada, mas não se recuperou quanto a composição florística, riqueza de espécies, densidade e área basal. A similaridade em distribuição diamétrica entre as áreas indica que a em regeneração está recuperando sua capacidade auto regenerante.Palavras-chave: floresta seca, estrutura, composição florística, distribuição diamétrica. AbstractIn northeastern Brazil, areas converted for pasture and agriculture are often abandoned; therefore the recovered areas contain vegetation at different successional stages. The aim of this study was to characterize the diversity and structure of Caatinga vegetation areas with different histories of use in northeastern Brazil. Two areas were used: 1) preserved with no historical evidence of deforestation for agricultural purposes; and 2) regenerated after cultivation of Opuntia ficus-indica Mill., approximately 30 years ago. In each area, vegetation of 12 plots was collected, considering all individuals with circumference at 1.30 m above ground level (CAP) ≥ 6.0 cm. Collected species were classified according to dispersal strategy into the categories of anemochoric, zoochoric, and autochoric. For the analysis of α diversity, species richness, Shannon index, Pielou's evenness, ...

show abstract

Section: Methodsmentioning

confidence: 99%

Richness and diversity of Caatinga areas in different successional stages in northeastern Brazil

Ferreira¹,

Silva²,

Silva³

et al. 2016

Sci. For.

View full text Add to dashboard Cite

show abstract

“…The first substantial critique of the use of indicator species to assess local stand continuity in forests was posed by Nordén & Appelqvist (2001) and Rolstad et al (2002). The critique did not only point to the lack of evidence in previously proposed indicator schemes, but also pointed out that the concept of forest continuity is complex, and not always well defined.…”

Section: Critique and Testing Of Proposed Surrogate Schemesmentioning

confidence: 99%

The history and future of fungi as biodiversity surrogates in forests

2017

View full text Add to dashboard Cite

Biodiversity surrogates are commonly used in conservation biology. Here we review how fungi have been used as such in forest conservation, emphasizing proposed surrogate roles and practical applications. We show that many fungal surrogates have been suggested based on field experience and loose concepts, rather than on rigorously collected scientific data. Yet, they have played an important role, not only in forest conservation, but also in inspiring research in fungal ecology and forest history. We argue that, even in times of ecosystem oriented conservation planning and molecular tools to analyze fungal communities, fruit bodies of macrofungi have potential as convenient conservation shortcuts and easy tools to communicate complex biodiversity for a broader audience. To improve the reliability of future fungal surrogates we propose a three step protocol for developing evidence based schemes for practical application in forest conservation.

show abstract

“…Indicator species are species that represent environmental and biological conditions (Rolstad et al, 2002). Table 3 shows the indicator species with significance level lower than 0.001% (*** P< 0.001).…”

Section: Beta Diversitymentioning

confidence: 99%

Diversity and indicator species in the cerrado biome, Brazil

Ferreira¹,

Machado²,

Silva-Neto³

et al. 2017

Aust J Crop Sci

View full text Add to dashboard Cite

The Cerrado biome has high species richness, endemism and spatial heterogeneity. Knowing the main characteristics and peculiarities of the flora is essential to adequately protect the species richness of the Cerrado. Therefore, the objective of this study was to analyze the species richness, alpha diversity and beta diversity of four vegetation types in the Paracatu River Basin (15°30'/19°30'S and 45°10'/47°30'W), Paracatu-MG. The four vegetation types cerrado (stricto sensu, "cerradão" or Savannah woodland, deciduous seasonal forest and riparian forest) were sampled following the Manual for Monitoring Permanent Plots of the Cerrado and Pantanal Biomes. Alpha diversity was assessed using the Simpson (Ds´) and Shannon & Wiener (H') indexes, and beta diversity using the Sørensen and Jaccard similarity indexes. The "cerradão" vegetation type had the highest number of species (106) and highest alpha diversity (3.83nats.ind -1 ). The cerrado stricto sensu had the lowest species richness (54 species) and alpha diversity value (2.65 nats. ind -1 ). Beta diversity was high (low Jaccard and Sørensen similarity) except between cerrado stricto sensu and "cerradão". The initial hypothesis of this study was rejected, because although the phytophysiognomies are located on the same land system, the beta diversity is high, except for the cerrado stricto sensu and "cerradão", which had similar diversity.

show abstract

Use of Indicator Species to Assess Forest Continuity: a Critique

Cited by 82 publications

References 41 publications

Richness and diversity of Caatinga areas in different successional stages in northeastern Brazil

Richness and diversity of Caatinga areas in different successional stages in northeastern Brazil

The history and future of fungi as biodiversity surrogates in forests

Diversity and indicator species in the cerrado biome, Brazil

Contact Info

Product

Resources

About