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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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Diversity in the grass pistil and its taxonomic significance
Australian Systematic Botany, 1996Grass pistils show a great deal of diversity. Variations occur in the number of stigmatic branches, the point at which the styles diverge, the extent of development of hairs on the stigma and ovary, style colour and exsertion from the floret. ANOVA, contigency analysis and regression analysis showed that in the grasses of south-eastern Queensland ...
Theile H.L., Clifford H.T., Rogers R.W.
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Taxonomic, Phylogenetic, and Ecological Diversity of Methanogenic Archaea
Anaerobe, 2000Methanogens are strict anaerobes which share a complex biochemistry for methane synthesis as part of their energy metabolism. The discovery of the unique biochemical and genetic properties of these organisms led to the concept of Archaebacteria at the end of the seventies and the proposal in 1990 for the domain Archaea.
Garcia, Jean-Louis +2 more
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Taxonomic Structure: Species Diversity
1984Terrestrial ecologists long ago remarked on the richness of the floras and faunas of tropical environments relative to colder climates. The diversification within many specific taxonomic groups is clearly greater in the tropics than in temperate latitudes, both in terrestrial and in marine environments (Fig. 12–1).
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Flies and flowers: taxonomic diversity of anthophiles and pollinators
The Canadian Entomologist, 2001AbstractThe Diptera are the second most important order among flower-visiting (anthophilous) and flower-pollinating insects worldwide. Their taxonomic diversity ranges from Nematocera to Brachycera, including most families within the suborders. Especially important are Syrphidae, Bombyliidae, and Muscoidea.
Larson, B.M.H. +2 more
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The unequal distribution of taxonomic diversity
1993Raikow (1986) feels that only the vagaries of taxonomy explain the higher number of species belonging to the passerine birds, compared with the non-passerine birds (but see the later comments by Fitzpatrick (1988), Vermeij (1988) and Kochmer and Wagner (1988) and Raikow’s (1988) reply). I cannot agree with Raikow’s views, as it is difficult to disprove
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Taxonomic diversity estimation using rarefaction
Paleobiology, 1975Benthic ecologists have successfully applied rarefaction techniques to the problem of compensating for the effect of sample size on apparent species diversity (= species richness). The same method can be used in studies of diversity at higher taxonomic levels (families and orders) in the fossil record where samples represent world-wide distributions of
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Protist taxonomic and functional diversity in soil, freshwater and marine ecosystems
Environment International, 2021David Singer +2 more
exaly