Showing 41 - 60 results of 64 for search 'Simpson’s index', query time: 0.08s Refine Results
  1. 41
  2. 42

    University proceedings. Volga region. Natural sciences by I.S. Makeev, T.A. Konchina, M.S. Lyubov, O.I. Nedoseko

    Published 2024-11-01
    “…Background.We suppose a comprehensive description of macrophyte communities using both the traditional allocation of dominant and subdominant species and an integral assessment of species diversity using the natural logarithmic Shannon index, the Pielou evenness index, and the Simpson diversity index. …”
    Article
  3. 43

    Elevational patterns of orchid diversity in mid-subtropical mountain forests of eastern China by Qinghua Zhan, Haihong Liao, Yuelong Liang, Zhong Zhang, Xingui Le, Yu Xiong, Lin Cheng, Wenqi Ding, Jian Lu, Yadong Zhou, Boyun Yang

    Published 2025-01-01
    “…In this study, we conducted an investigation of orchids across more than 1900 5 m × 5 m plots in six mountains located in central China, spanning an elevational range from 166 m to 1930 m, and then converted these survey data into the distribution data in 100 m elevational bands to study the trend of species richness (S), Shannon-Wiener index (H'), Simpson index (D), and Pielou evenness (e) of orchids variation along the elevational gradients. …”
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  4. 44

    Characteristics of the macroinvertebrate community structure and their habitat suitability conditions in the Chishui River by Xinyu Li, Long Yan, Xu Zhi, Peng Hu, Chongju Shang, Baolong Zhao

    Published 2025-01-01
    “…In contrast, the Pielou index and Simpson index remained relatively stable, suggesting a higher level of evenness in community structure across the different water periods. …”
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    Article
  5. 45

    Microbiota, Prostatitis, and Fertility: Bacterial Diversity as a Possible Health Ally by Jenniffer Puerta Suárez, Walter D. Cardona Maya

    Published 2021-01-01
    “…The species diversity in semen samples was similar in healthy men than prostatitis patients, inverted Simpson index median 5.3 (5.0–10.7) vs. 4.5 (2.1–7.8, p=0.1508). …”
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  6. 46

    Effect of fungicides on soil respiration, microbial community, and enzyme activity: A global meta-analysis (1975–2024) by Zikai Wang, Shourong Yun, Yuli An, Liulingqian Shu, Shunjin Li, Kai Sun, Wei Zhang

    Published 2025-01-01
    “…Additionally, the application of fungicides significantly reduced fungi, actinomycetes, Shannon index, Simpson index, and McIntosh index while not affecting bacterial diversity. …”
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    Article
  7. 47

    Lost microbes of COVID-19: Bifidobacterium, Faecalibacterium depletion and decreased microbiome diversity associated with SARS-CoV-2 infection severity by Eamonn MM Quigley, Thomas J Borody, Sabine Hazan, Neil Stollman, Huseyin S Bozkurt, Sonya Dave, Andreas J Papoutsis, Jordan Daniels, Brad D Barrows

    Published 2022-04-01
    “…Microbiome diversity and composition were compared between patients and exposed controls at all taxonomic levels.Results Compared with controls (n=20), severely symptomatic SARS-CoV-2-infected patients (n=28) had significantly less bacterial diversity (Shannon Index, p=0.0499; Simpson Index, p=0.0581), and positive patients overall had lower relative abundances of Bifidobacterium (p<0.0001), Faecalibacterium (p=0.0077) and Roseburium (p=0.0327), while having increased Bacteroides (p=0.0075). …”
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  8. 48

    Spatial Characterization of Woody Species Diversity in Tropical Savannas Using GEDI and Optical Data by Franciel Eduardo Rex, Carlos Alberto Silva, Eben North Broadbent, Ana Paula Dalla Corte, Rodrigo Leite, Andrew Hudak, Caio Hamamura, Hooman Latifi, Jingfeng Xiao, Jeff W. Atkins, Cibele Amaral, Ernandes Macedo da Cunha Neto, Adrian Cardil, Angelica M. Almeyda Zambrano, Veraldo Liesenberg, Jingjing Liang, Danilo Roberti Alves De Almeida, Carine Klauberg

    Published 2025-01-01
    “…In this study, we evaluate the potential of Global Ecosystem Dynamics Investigation (GEDI) data, combined with conventional satellite optical imagery and climate reanalysis data, to predict in situ alpha diversity (Species richness, Simpson index, and Shannon index) among tree species. …”
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  9. 49

    Critical signals for grassland desertification prediction in the transition zone between desert and typical steppe in InnerMongolia, China by Baoping Meng, Zhuoyan Jin, Jin Chen, Yili Kuang, Shuhua Yi, Yanyan Lv, Jinrong Li

    Published 2025-01-01
    “…We analyzed vegetation patch features (including percentage of landscape (PLAND), patch density (PD), largest patch index (LPI), and perimeter-area ratio distribution (PARA)), species diversity indices (Shannon-Wiener, Simpson, Margalef, Pielou), soil seed bank density, similarity index, and established their relations. …”
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  10. 50

    Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities by Wei Gao, Shuyi Chen, Xin Yu, Sumin Chen, Caijing Wan, Ying Wang, Peng Wu, Qiang Li

    Published 2025-02-01
    “…IntroductionThe plant restoration and ecological restoration of lead-zinc mines are very important.MethodsIn this study, we used three local plants to carry out ecological restoration of abandoned lead–zinc mining areas and detected the adaptive mechanisms of soil bacterial diversity and function during the ecological restoration of lead–zinc mines through 16S rRNA sequencing.ResultsThe results revealed that lead-zinc mining significantly reduced the soil bacterial diversity, including the Shannon, Simpson, and observed species indices, whereas the planting of the three ecological restoration plants restored the soil microbial diversity to a certain extent, leading to increases in the Shannon index and Observed species indices. …”
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  11. 51

    Effects of Microbial Fertilizer Application on Soil Ecology in Saline–Alkali Fields by Xingguo Tian, Xiu Zhang, Guoping Yang, Yu Wang, Qianru Liu, Jingjing Song

    Published 2024-12-01
    “…Alpha diversity analysis demonstrated that the Ace, Chao1, and Sobs indices for both bacteria and fungi were significantly higher at NS3 than before sowing, indicating the highest species richness at this stage. The Shannon index exhibited an ascending trend, and the difference in the Simpson index was not significant. …”
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  12. 52

    Capsaicin Modulates Ruminal Fermentation and Bacterial Communities in Beef Cattle with High-Grain Diet-Induced Subacute Ruminal Acidosis by Wei You, Haijian Cheng, Xin Hu, Enliang Song, Fugui Jiang

    Published 2025-01-01
    “…The addition of capsaicin increased the alpha diversity of ruminal bacteria relative to the SARA group, as evidenced by a lower Simpson index (<i>p</i> < 0.05), together with increases in the Ace, Chao, and Shannon indices (<i>p</i> < 0.05). …”
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  13. 53

    Effects of cassava pellets and enzymes addition on growth performance, meat quality, serum biochemical indices and cecum microbiota of broilers by Dan Yue, Ying Lu, Jin Zhao, Xiaoming He, Junhong Zhu, Jiawei Liang, Weidong Deng

    Published 2025-01-01
    “…Alpha diversity showed a significant increase in the Chao index in the K3 group and in the Shannon and Simpson indices in the K6 group compared to the K1 group (P < 0.05). …”
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    Article
  14. 54

    Imbalance of Microbacterial Diversity Is Associated with Functional Prognosis of Stroke by Xintong Zhang, Xiangyu Wang, Hong Zhao, Risheng Cao, Yini Dang, Binbin Yu

    Published 2023-01-01
    “…In addition, the Neurogenic Bowel Dysfunction score (r=0.495, P=0.026), Barthel index (r=−0.531, P=0.015), Fugl-Meyer Assessment score (r=−0.565, P=0.009), Visual Analogue Scale score (r=0.605, P=0.005), and Brief Pain Inventory score (r=0.507, P=0.023) were significantly associated with alterations of distinctive gut microbiota. …”
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  15. 55

    No rumen fermentation profiles and associated microbial diversities difference were found between Hu sheep and Karakul sheep fed a cottonseed hull diet by Jishu Wang, Guangxu E, Meng Zhang, Yanlong Zhang, Tiantian Bai, XuanXuan Pu, Junfeng Liu, Xuefeng Guo, Subir Sarker, Long Cheng

    Published 2025-01-01
    “…In stage II, rumen bacteria in both Hu and Karakul sheep were relatively stable. However, the Simpson index of Hu sheep in stage II was substantially greater than that of Karakul sheep, demonstrating similarities in the rumen microbial structure between stages II and III. …”
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  16. 56

    Investigation of gut microbiota in pediatric patients with peanut allergy in outpatient settings by Shouming Li, Jingyi Huang, Yunyun Xie, Di Wang, Xin Tan, Yufan Wang

    Published 2025-02-01
    “…Alpha diversity indices, including the sob, ace, chao, shannon, and simpson indices, were calculated to assess microbial community richness and diversity. …”
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  17. 57

    Comparison of Airborne Bacterial Populations Determined by Passive and Active Air Sampling at puy de Dôme, France by Kevin P. Dillon, Romie Tignat-Perrier, Muriel Joly, Sydonia N. C. M. Grogan, Catherine Larose, Pierre Amato, Gediminas Mainelis

    Published 2023-01-01
    “…The observed bacterial richness and diversity, as estimated through Shannon’s and Simpson’s indexes, were significantly greater in REPS samples compared to the PM10 samples. …”
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  18. 58

    Sex Variations in the Oral Microbiomes of Youths with Severe Periodontitis by Ya-Qiong Zhao, Ying-Hui Zhou, Jie Zhao, Yao Feng, Zheng-Rong Gao, Qin Ye, Qiong Liu, Yun Chen, Shao-Hui Zhang, Li Tan, Marie Aimee Dusenge, Jing Hu, Yun-Zhi Feng, Fei Yan, Yue Guo

    Published 2021-01-01
    “…The Simpson and Shannon indices were not significantly different between the two groups. β-Diversity suggested that the samples were reasonably divided into groups. …”
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  19. 59

    Cecum microbiota composition, fermentation characteristics, and immunometabolic biomarkers of Yunshang black goat fed varying dietary energy and protein levels by Binlong Fu, Xiaoqi Zhao, Muhammad Khan, Yanting Jiang, Weijuan Li, Maida Mushtaq, Baiji Danzeng, Xiaojun Ni, Zobia Azeem, Qingyong Shao, Bai Xue, Yina Ouyang

    Published 2025-02-01
    “…Although species richness (Chao1 index) remained consistent, the HEHP group showed higher diversity (Shannon and Simpson indices) than LEHP (p &lt; 0.05). …”
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  20. 60

    Correlation between aboveground vegetation composition and soil seed bank of Raudhat desert habitat: a case study of Raudhat Alkhafs, Saudi Arabia by Asma A. Al-Huqail, Hanan F. Al-Harbi, Abdullah M. Alowaifeer, Mohamed A. El-Sheikh, Abdulaziz M. Assaeed, Turki S. Alsaleem, Hazem S. Kassem, Omar M. Azab, Basharat A. Dar, Jahangir A. Malik, Ahmed M. Abd-ElGawad

    Published 2025-02-01
    “…During the winter-spring season, Heliotropium ramosissimum community revealed the highest species richness (Simpson index = 0.92) and evenness (Shannon-evenness = 0.83). …”
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