Results 221 to 230 of about 1,897 (254)
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Taxonomic distinctness and diversity measures: Responses in lagoonal macrobenthic communities
Italian Journal of Zoology, 2000Abstract Sampling campaigns were carried out in 1976 and in 1989 in the Sacca degli Scardovari, a brackish lagoon in the Po Delta (upper Adriatic Sea). By means of different methods (i.e., average taxonomic distinctness index, conventional diversity measures, and non‐parametric multivariate analysis), changes in benthic community structure were ...
Michele Mistri
exaly +3 more sources
Taxonomic distinctness and diversity of a hyperseasonal savanna in central Brazil
Diversity and Distributions, 2006 ABSTRACTSavannas are characterized by a sharp seasonality, in which the water shortage defines the community functioning. Hyperseasonal savannas, however, experience additionally waterlogging in the rainy season. Since waterlogging may cause local extinctions of intolerant species, we asked whether waterlogging constricts the phylogenetic structure of ...
Marco Antonio Batalha
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Taxonomic distinctness indices for discriminating patterns in freshwater rotifer assemblages
Hydrobiologia, 2016Taxonomic distinctness indices measure the taxonomic relatedness among species and have been used for environmental assessment to detect disturbed habitats. This is the first application of the Average Taxonomic Distinctness (Δ+) and Variance in Taxonomic Distinctness (Λ+) indices to the presence/absence data of rotifer communities to examine their ...
Georgia Stamou, Evangelia Michaloudi
exaly +2 more sources
Marine Pollution Bulletin, 2012
Taxonomic distinctness has been applied successfully for the exploration of biodiversity patterns, yet its relevance in environmental impact assessment is far from being unquestioned. In this study, we assessed the potential of taxonomic distinctness to discern perturbed and unperturbed sites by analysing Mediterranean nematode assemblages.
Stanislao Bevilacqua +2 more
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Taxonomic distinctness has been applied successfully for the exploration of biodiversity patterns, yet its relevance in environmental impact assessment is far from being unquestioned. In this study, we assessed the potential of taxonomic distinctness to discern perturbed and unperturbed sites by analysing Mediterranean nematode assemblages.
Stanislao Bevilacqua +2 more
exaly +4 more sources
Ecological Indicators, 2016 Abstract Taxonomic diversity indices have a number of desirable properties as indicators in the assessment of environmental quality, and have become an important measure in biodiversity studies. Macrobenthic taxonomic variations were studied in Bohai Bay, northern China, an area under threat from rapid human development. Four seasonal cruise datasets
Qingtian Zhang
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Distinctive neural bones in Dipsochelys giant tortoises: Structural and taxonomic characters
Journal of Morphology, 1999The carapace of turtles consists of characteristic dermal bones (neurals, costal, and pleurals) and epidermal scutes. The variation in neural bone configuration in the Indian Ocean giant tortoise genus Dipsochelys is assessed. Study of 42 specimens supports earlier reports that variation is largely restricted to the anterior and posterior bones.
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Average Taxonomic Diversity and Distinctness
2008Taxonomic relatedness of the individuals or species in a sample is the key concept on which taxonomic diversity and distinctness measures of biodiversity are based. It is well known that in impacted assemblages of organisms the taxonomic spread of species is reduced, and in extreme cases they may be sibling species belonging to the same genus, or at ...
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Paleontological Research, 2020
Recent molecular analyses have challenged the traditional classification of scleractinian corals at almost all taxonomic levels, suggesting a requirement of new morphological characters for classification. Microskeletal characters have shown great potential to support the classification of the molecular-based clades of the scleractinian corals ...
Yuki Tokuda, Yoichi Ezaki
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Recent molecular analyses have challenged the traditional classification of scleractinian corals at almost all taxonomic levels, suggesting a requirement of new morphological characters for classification. Microskeletal characters have shown great potential to support the classification of the molecular-based clades of the scleractinian corals ...
Yuki Tokuda, Yoichi Ezaki
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Novel Endophytes of Rice form a Taxonomically Distinct Subgroup of Serratia marcescens
Systematic and Applied Microbiology, 2001Six endophytic strains isolated from surface-sterilized rice roots and stems of different rice varieties grown in the Philippines were characterized. They were analyzed by physiological and biochemical tests, SDS-PAGE of whole-cell protein patterns, DNA-DNA hybridization and 16S rDNA sequencing.
Z, Tan +4 more
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