Results 221 to 230 of about 183,225 (261)

Taxonomic diversity of the freshwater Zooplankton in Argentina: A review

Limnologica, 2023
Fil: Jose, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral.
Jose, Susana Beatriz, Marinone, María Cristina, Kuppers, Gabriela Cristina, Claps, María Cristina, Paggi, Juan Cesar   +4 more
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Taxonomic diversity in the biology of migration

Canadian Journal of Zoology, 2014
Migration is widespread across taxa and highly variable both within and among groups. There have been multiple efforts to synthesize migratory theory across groups and these frameworks benefit from the inclusion of diverse taxa. The objective of this partial series of the Canadian Journal of Zoology was to highlight taxonomic diversity in migration by ...
Liam P. McGuire, Erin E. Fraser
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Allergenic relationship between taxonomically diverse pollens

Clinical & Experimental Allergy, 1995
SummaryBackground Skin tests and tests for IgE antibodies show that subjects are usually sensitive to a number of different pollens, frequently from taxonomically diverse species which are assumed to be allergenically non‐crossreactive. This suggests that the presence of IgE antibody‐reactivity to an individual pollen may not necessarily have ...
N H, Pham, B A, Baldo
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Geminiviruses: Taxonomic Structure and Diversity in Genomic Organization

Recent Patents on Biotechnology, 2020
Background: Geminiviridae is one of the best-characterized and hence, one of the largest plant-virus families with the highest economic importance. Its members characteristically have a circular ssDNA genome within the encapsidation of twinned quasi-icosaheadral virions (18-38 nm size-range).
Saurabh Kulshrestha, Abhishek Bhardwaj, null Vanshika   +2 more
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Taxonomic diversity of anaerobic glycerol dissimilation in the Enterobacteriaceae

Research in Microbiology, 1995
A total of 1,123 strains representing 128 taxa in the Enterobacteriaceae (named species or subspecies and genomic species) were screened for the presence of glycerol dehydrogenases and 1,3-propanediol dehydrogenase. Only eight taxa, Citrobacter freundii sensu stricto, C. youngae, C. braakii, C.
O M, Bouvet, P, Lenormand, E, Ageron, P A, Grimont   +3 more
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Average Taxonomic Diversity and Distinctness

2008
Taxonomic 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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Taxonomic, Phylogenetic, and Ecological Diversity of Methanogenic Archaea

Anaerobe, 2000
Methanogens 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, Patel, Bharat K.C., Ollivier, Bernard   +2 more
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The unequal distribution of taxonomic diversity

1993
Raikow (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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Flies and flowers: taxonomic diversity of anthophiles and pollinators

The Canadian Entomologist, 2001
AbstractThe 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., Kevan, P.G., Inouye, D.W.   +2 more
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Diversity in the grass pistil and its taxonomic significance

Australian Systematic Botany, 1996
Grass 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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