Tìm thấy 11+ kết quả cho từ khóa "Diversity indices"
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The negative correlation between diversity indices (H and I) and relatedness indicates that inbreeding and genetic drift play a significant role in reducing genetic vari- ability in the studied population which results in increased differentiation among sub-populations.
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Thus, most of the genetic diversity indices for the NOR-, SWE-, FIN- and DNK-subpopulations were not significantly different from each other.
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Table 2 Genetic diversity indices for the Capsicum population. Analysis of LD decay by plotting r 2 against distance revealed an extensive LD for the whole population, where LD starts to decay at ~ 5.59 Mb (Fig. LD starts to decay at 0.07 and 0.38 Mb for the C.
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Analysis of molecular variance (AMOVA) and genetic diversity indices. The number of subpopulations based on the STRUCTURE analysis was considered in the AMOVA. number of ef- fective alleles ( Ne. The LD between each pair of the 36,720 SNPs was cal- culated as the squared allele frequency correlation coeffi- cient ( R 2 ) using TASSEL v.5.2.5 software [42].
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While a biotic variability (e.g., pH, temperature, etc.) in a habitat is termed habitat heterogeneity (Hortal et al., 2009), species diversity indices (α and β) allow us to specify the variables controlling and influencing distribution and composition of species..
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Key words: Aegolius funereus, food habits, Kopaonik, Tengmalm’s owl, voles, diversity indices. Materials for this diet study were collected during 3 consecutive breeding seasons in mounted nest-boxes (n = 63) occasionally occupied by territorial males and nesting pairs of Tengmalm’s owl. For the purposes of the study, the breeding season was divided into 2 different periods: mating (period before egg laying) and nesting (period after egg laying across incubation and chick raising).
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Zooplankton diversity was less affected by time and only the Pielou index in the MI area between 2004 and 2009 was significantly different.. Analysis of the various indices between seasons showed that the MO area was less volatile than the two other regions. Keywords: Zooplankton, Thi Nai lagoon, diversity indices.. Zooplankton community in Thi Nai lagoon in the period of 2001–.
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The immune challenge greatly reduced diversity in the microbial communities in the gut as evidence by both the Shannon’s and Simpson’s diversity indices (Linear mixed-effects models, F = 30.12, P <. 2 Worker survival over time under the presence of the queen (dashed lines) or her absence (solid line). Survival analysis revealed a higher survival in the absence than in the presence of the queen (Cox survival mixed-effects model.
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Box plots showing diversity indices from 3 surveys of and 2019 in Quang Ngai. In 2015, there was an increase of all indices from the coast to Ly Son island, but in the later years the highest values were in Ly Son transect (fig. Among the years, the Margalef richness index in Ly Son transect in 2019 was much higher than that in. Generally, phytoplankton communities of Ly Son transect seemed to be less varied with higher diversity than in other areas in both dry and rainy (2015) seasons.
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A number of diversity indices and similarity indices have been developed to integrate richness and evenness in a variable that can be com- pared among community types.. A number of food web attributes have been proposed, based on limited taxonomic resolution of insects and other arthropods
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Margalef’s richness index D (Margalef, 1957), Pielou’s evenness index Js (Pielou, 1966), and Shannon–Wiener diversity index H′ (Shannon and Weaver, 1949) were used to determine the biodiversity of the soil fauna communities. These diversity indices are usually used in the analysis of the soil fauna communities (Ge et al., 2016).. Here, Pi = proportion of the number of individuals of species i to the total number of individuals of all species (i.
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Diversity indices range of the EB in the seven genotypes is shown in Additional file 4:. 4 Alpha diversity of seed endosphere bacteria in a seven genotypes of the three agroecosystems, b individual hills of the genotypes. The observed OTU richness was significantly higher in Idaw (1985) than in the other six genotypes as tested by student’s t-test (P 0.05).
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Our works are the first attempts in marine diatomology to apply indicators of taxonomic distinctness to the quantitative analysis of hierarchical diversity of benthic diatoms dwelling in the coastal biotopes of the Black Sea.. A comparative assessment of the benthic diatom hierarchical diversity using TaxDI indices was carried. As a result, the natural conditions of the area were preserved..
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In order to achieve more successful results in biomass estimates, researchers continue to develop new indices every day (Zhang et al., 2017). The best known of these are the simple ratio indices (SRs) used by Jordan (1969) and the normalized difference vegetation indices (NDVIs) used by Rouse et al. (1973) (Roberts et al., 2011.
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The biological diversity of zooplankton communities in the Uzungöl Lagoon was evaluated based on species richness, Shannon diversity and Pielou’s evenness indices.. Mean Pielou’s evenness index remained in the range, minimum and. The statistical analyses demonstrated significant seasonal differences in the course of community parameters (for species richness F=. Variables in the RDA ordination analysis explained 66.7% of the total variability.
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The rare clones in the Kuchak and Dilijan (Papa- nino) may have owed to an independent origins because of dominance of rare alleles and (2) the peripheral distri- bution to the common clone suggested multiple origin Table 3 The population indices of gene diversity for four studied loci in twelve sampled populations of D. Our analyses indicate that at least three interspecific hybridizations were involved in the genesis of D.
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The structure and diversity of the beetle community were measured using nonparametric indices, i.e. Generalized linear mixed effects models (GLMM) were applied to examine the spatiotemporal variation of species abundance, and to test the effects of edaphic variables and vegetation cover on the variation of beetle abundance and species richness. most of the species belonged to the subfamily Harpalinae (33.33.
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Platelet indices: consideration in throm- bocytopenia
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In the same way, genetic diversity decreased during the develop- ment of the ICARDA breeding program from 1974 to 2007 [58]. 2009 than in the other periods. In the present study, the number of SNP pairs in high (r 2 >. A durum wheat (Triticum turgidum L. Distribution and physical positions of polymorphic SNPs in the durum wheat genome.
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Time Diversity. Space-time Codes. Broadcast nature of the wireless medium can be exploited.