Results 261 to 270 of about 894,108 (318)

Woody species composition, structure and regeneration status of Alka forest Beyeda District, North Gondar Zone, Amhara Region, Northern Ethiopia. [PDF]

BMC Plant Biol
Wassie KB, Walle GC, Alemnew AT.
europepmc   +1 more source

Exploring phyllosphere fungal communities of 29 alpine meadow plant species: composition, structure, function, and implications for plant fungal diseases. [PDF]

Front Microbiol
Yang F, Pu X, Matthew C, Nan Z, Li X.
europepmc   +1 more source

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Sphingolipid Composition in Bacteroides Species

Anaerobe, 1995
Sphingolipid profiles of strains from species of genus Bacteroides, and representative strains from Prevotella and Porphyromonas, were analyzed by thin-layer chromatography and infrared spectrophotometry. Two major types of phosphosphingolipid, ceramide phosphorylethanolamine and ceramide phosphorylglycerol, were detected in B. fragilis, B.
M, Kato, Y, Muto, K, Tanaka-Bandoh, K, Watanabe, K, Ueno   +4 more
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Tannin composition of barbatimão species

Fitoterapia, 2002
A comparative study of tannin composition of three species known as barbatimão (Stryphnodendron adstringens, Stryphnodendron polyphyllum and Dimorphandra mollis) was developed by TLC, hydrolysis followed by PC, and colorimetry. Principal component analysis of the data obtained showed strong differentiation between the genus Dimorphandra and ...
Suzana C, Santos, Wesley F, Costa, Jeane P, Ribeiro, Denise O, Guimarães, Pedro H, Ferri, Heleno D, Ferreira, José C, Seraphin   +6 more
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Detecting Trends in Species Composition

Ecological Applications, 1998
Species composition reflects a combination of environmental and historical events at a site; hence, changes in species composition can provide a sensitive measure of ecologically relevant changes in the environment. Here, we consider the analysis of species composition when multiple sites are followed through time.
Thomas E. Philippi, Philip M. Dixon, Barbara E. Taylor   +2 more
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Plasmid composition of Staphylococcus species

Canadian Journal of Microbiology, 1981
A total of 342 staphylococci representing 13 different recognized species were screened for plasmid composition using agarose gel electrophoresis techniques. Plasmids of molecular weight (MW) 30 × 106 or larger in size were uncommon in staphylococci.
W E, Kloos, B S, Orban, D D, Walker
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Fatty Acid Composition of Sideritis Species

Chemistry of Natural Compounds, 2001
Seed oils of 15Sideritisspecies collected from different regions in Turkey(S. athoa, S. brevidens, S. caesarea, S. condensata, S. congesta, S. dichotoma, S. erythrantha var. cedretorum, S. germanicopolitana ssp. germanicopolitana, S. hololeuca, S. lanata, S. libanotica ssp. violascens, S. lycia, S. niveotomentosa, S. perfoliata, S. phrygia, S. pisidica)
Ertan, A, Azcan, Nezihe, Demirci, Betül, Başer, K. Hüsnü Can   +3 more
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Spatial heterogeneity in species richness and species composition

Grassland Science, 2010
AbstractVisually detecting and measuring actual spatial heterogeneity is relatively easy using traits of grassland vegetation communities, e.g. ‘quantitative’ traits such as spatial heterogeneity in biomass, vegetation cover and frequency of occurrence for each species. In the present paper, we consider substantively ‘qualitative’ aspects of vegetation,
Masae Shiyomi, Jun Chen, Taisuke Yasuda
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Statistical Interpretation of Species Composition

Journal of the American Statistical Association, 2001
The relative abundance of different species characterizes the structure of a biological community. We analyze an experiment addressing the relationship between omnivorous feeding linkages and community stability. Our goal is to determine whether communities with different predator compositions respond similarly to environmental disturbance. To evaluate
Billheimer D., Guttorp P., Fagan W.F.
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Representation of Species Composition

2016
The Aitchison geometry of the simplex, the sample space of compositional data, allows statistical modelling and analysis of compositions without the problems derived from spurious correlation. Here, it is used to show that it offers an alternative to the de Finetti ternary diagram for representing variability of species composition avoiding the ...
V. Pawlowsky-Glahn, T. Monreal-Pawlowsky, J. J. Egozcue   +2 more
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