Results 11 to 20 of about 1,897 (254)
Taxonomic diversity and distinctness indices in assessment of weed communities
This paper contains an analysis of taxonomic weed biodiversity in the cultivation of spring barley in the period of 1990-2004, grown in crop rotation after potato with a 25% share of this cereal (potato - spring barley - field pea - winter triticale) as ...
Magdalena Jastrzębska +3 more
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Taxonomic distinctness poorly reflects floristic quality in a wetland study system
Biomonitoring typically uses taxonomic diversity information while ignoring phylogenetic diversity. Evolutionary relatedness may offer deeper insight to how local assemblages relate with human disturbance and ecological degradation.
Suneeti K. Jog, Jason T. Bried
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Isoëtes sabatina (Isoëtaceae, Lycopodiopsida): Taxonomic distinctness and preliminary ecological insights [PDF]
Abstract Isoëtes sabatina is the rarest aquatic quillwort in Europe. Although recently found (2013) in Lake Bracciano (central Italy), the species is just one step away from extinction with an estimated population not exceeding 400 individuals and a spatial range of a few hundred square metres. Lake Bracciano is a deep, oligo‐mesotrophic Mediterranean
Bolpagni, Rossano +7 more
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Taxonomic distinctness and conservation of a new high biodiversity subterranean area in Brazil [PDF]
Subterranean environments, even though they do not possess a primary production (photosynthesis), may present high biodiversity, faunistic originality, endemism, phylogenetic isolations and unique ecological and/or evolution events, in addition to rare ...
JONAS E. GALLÃO, MARIA ELINA BICHUETTE
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Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice [PDF]
AbstractCiliophora is a phylum of unicellular eukaryotes that are common and have pivotal roles in aquatic environments. Sea ice is a marine habitat, which is composed of a matrix of solid ice and pockets of saline water in which Ciliophora thrive.
Markus Majaneva +2 more
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Taxonomic Novelty and Distinctive Genomic Features of Hot Spring Cyanobacteria [PDF]
Several cyanobacterial species are dominant primary producers in hot spring microbial mats. To date, hot spring cyanobacterial taxonomy, as well as the evolution of their genomic adaptations to high temperatures, are poorly understood, with genomic information currently available for only a few dominant genera, including Fischerella and Synechococcus ...
Jaime Alcorta +7 more
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Taxonomic distinctness and environmental assessment [PDF]
Summary The objectives of this paper are to test the performance of the taxonomic distinctness index, δ+, in a number of environmental impact scenarios, to examine its relationship with functional diversity and to examine the influence of habitat type and diversity on the index.
Warwick, R.M., Clarke, K.R.
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A taxonomic distinctness index and its statistical properties [PDF]
Summary For biological community data (species‐by‐sample abundance matrices), Warwick & Clarke (1995) defined two biodiversity indices, capturing the structure not only of the distribution of abundances amongst species but also the taxonomic relatedness of the species in each sample.
Clarke, K.R., Warwick, R.M.
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Rongjiang River, the second largest river system in Guangdong Province, flows through the main urban areas of Jieyang and Shantou cities before reaching the South China Sea.
Yafang Li +13 more
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Abstract Background The taxonomy of Kaposi Sarcoma (KS) is based on a classification system focused on the description of clinicopathological features of KS in geographically and clinically diverse populations. The classification includes classic, endemic, epidemic/HIV associated and iatrogenic KS, and KS in men who have
M. R. Openshaw +5 more
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