Relevant bibliographies by topics / Shannon-Weaver index diversity

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  2. Dissertations / Theses
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  4. Conference papers

Academic literature on the topic 'Shannon-Weaver index diversity'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Shannon-Weaver index diversity"

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Dagaonkar, Amita, and M. M. Prakash. "Diversity indices of phytoplankton at Munj sagar talab (Dhar, Madhya pradesh, India)." Environment Conservation Journal 12, no. 3 (2011): 29–32. http://dx.doi.org/10.36953/ecj.2011.120306.

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Phytoplankton is the significant formal natural occupier of all water bodies. They play an important role in the biosynthesis of organic material. Being an index of trophic status phytoplankton reflects the overall environmental condition of the system and its potentiality. Present investigation was carried out for a period of twenty four month to study the diversity indices. Simpson’s Index of Dominance ranged from 0.0441 to 0.0952. Shannon-Wiener Diversity (H) index ranged from 2.6298 to 3.2112.273. Evenness Index ranged from 0.5593 to 0.9808 during the study period. Keywords: Diversity inde
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Tomar, V., and W. Ahmad. "Food web diagnostics and functional diversity of soil inhabiting nematodes in a natural woodland." Helminthologia 46, no. 3 (2009): 183–89. http://dx.doi.org/10.2478/s11687-009-0034-7.

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AbstractFunctional diversity and detritus soil food web of soil inhabiting nematodes in natural woodland dominated by Acacia nilotica L. was studied. Functional diversity was studied in terms of trophic groups assessed by Trophic diversity index (TDI) and Shannon-Weaver index (H′), while food web was diagnosed by channel index (CI). The plant parasitic channel was determined by plant parasitic index (PPI). The stability of the soil ecosystem was measured in terms of maturity index (MI), structure index (SI) and enrichment index (EI). Shannon-Weaver index of the area was recorded as 2.1 ± 0.3 w
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Kratyuk, O. "Study of forest plants species diversity in “Radomyshlske” forestry-hunting enterpise." Agrobìologìâ, no. 2(174) (December 27, 2022): 111–18. http://dx.doi.org/10.33245/2310-9270-2022-174-2-111-118.

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The types of plant diversity on the territory of the Radomyshl Forestry in areas with different types of forest vegetation conditions were investigated. 21 species belonging to 15 families and 18 genera have been identified. The main types of forest are determined (Pinus sylvestris-Vaccinium vitisidaea+V. myrtillus-Cladonia spp.+ Pleurozium; Pinus sylvestris-Calluna vulgaris-Pleurozium+ Cladonia ssp.; Pinus sylvestris-Vaccinium myrtillus-Pleurozium; Pinus sylvestris-Pteridium aquilinum-Vaccinium myrtillus-Pleurozium; Pinus sylvestris-Calamagrostis arundinacea+Convallaria majalis) and key indic
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Saifullah, Saifullah. "Water Quality of Situ Cibanten Based on Shannon-Weaver Diversity Index Value." Jurnal Perikanan dan Kelautan 5, no. 1 (2015): 1. http://dx.doi.org/10.33512/jpk.v5i1.263.

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Zanklan, Ahissou Séraphin. "Phenotypic Variation and Genetic Diversity of Colocynth (Citrullus colocynthis [L.] Schrad.) Varieties Collected in the Southeastern of Benin Republic." Middle-East Journal of Scientific Research 32, no. 1 (2024): 1–19. http://dx.doi.org/10.5829/idosi.mejsr.2024.01.19.

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Citrullus colocynthis belongs to the plant family Cucurbitaceae. Despite its nutritional importance for human beings, it is less promoted. The present study aims to explore the phenotypic variation and genetic diversity existing in the crop, to examine its breeding potential and to identify useful characters to distinguish between genotypes. 40 provenances collected from farmers in the Southeastern of Benin Republic were multiplied during the growing season 2013-2014. They were surveyed in field trials at three locations (each year) and three years (2014-2017). 20 quantitative and 14 qualitati
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Khadka, C. B., A. L. Hammet, A. Singh, M. K. Balla, and Y. P. Timilsina. "Ecological status and diversity indices of Panchaule (Dactylorhiza hatagirea) and its associates in Lete village of Mustang district, Nepal." Banko Janakari 26, no. 1 (2016): 45–52. http://dx.doi.org/10.3126/banko.v26i1.15501.

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This paper focuses on the ecological status and diversity indices: Simson’s Index (C), Simson’s Index of Dominance (D) and Shannon-Weaver Index (H) of Dactylorhiza hatagirea and its associates- Rheum australe and Rumex nepalensis in Lete village of Mustang District within the Annapurna Conservation Area. The study was conducted during the monsoon season (June/July) of 2013 in the Lete VDC of Mustang District. The study site possessed an area of 4.5 ha. Altogether, 100 circular plots, each with 25 m2 area, were laid out purposively within the study area; the sampling intensity being 5.55%. The
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Benarchid, Khalid, Mohammed Khatori, and Said Hilali. "Evaluation De La Dégradation De La Chamaeropaie Du Versant Sud Du Mont « jbelLakraa » (Maroc) Etudes Floristique Et Morphométrique." European Scientific Journal, ESJ 14, no. 14 (2018): 76. http://dx.doi.org/10.19044/esj.2018.v14n14p76.

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Our study is devoted to the chamaeropaie degradation assessment of the jbel Lakraa southern slope, located in the northern Middle Atlas in the Ribat Al Khair region. The floristic study revealed a specific richness of 124 species belonging to 95 genera and 33 vascular plants families, as well as a specific diversity relatively high with a Shannon-Weaver index of 3.88. A relatively high specific diversity with a Shannon-Weaver index of 3.88 was observed. However, the floristic composition showed a disturbance expressed by the index of equitability which is 0.58 and a strong therophytisation of
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Sherwin, William B., and Narcis Prat i Fornells. "The Introduction of Entropy and Information Methods to Ecology by Ramon Margalef." Entropy 21, no. 8 (2019): 794. http://dx.doi.org/10.3390/e21080794.

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In ecology and evolution, entropic methods are now used widely and increasingly frequently. Their use can be traced back to Ramon Margalef’s first attempt 70 years ago to use log-series to quantify ecological diversity, including searching for ecologically meaningful groupings within a large assemblage, which we now call the gamma level. The same year, Shannon and Weaver published a generally accessible form of Shannon’s work on information theory, including the measure that we now call Shannon–Wiener entropy. Margalef seized on that measure and soon proposed that ecologists should use the Sha
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Wang, Hong Wei, Wei Zhang, Kai Ming Li, et al. "A Phytoplanktonic Investigation and Water Quality Assessment about Tanjiang River." Applied Mechanics and Materials 130-134 (October 2011): 3795–98. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.3795.

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A phytoplanktonic investigation of Tanjiang River was conducted in March 2011. 202 species of phytoplankton belonging to 86 genera and 7 phyla were identified altogether. Chlorphyta and Bacillariophyta which occupied 36.14% and 43.56% of the total number were the most, indicating that the green algae and diatom were the dominant group. Tanjiang River was β-meso-polluted to oligo-polluted judging from phytoplankton community while it was clean or light-polluted judging from Shannon-Weaver diversity index, Margalef diversity index and Pielou evenness index. Tanjiang River was light-polluted or o
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Singh, Anil Kumar, Manibhushan, Naresh Chandra, and Narayan Bhakta. "Extent and pattern of diversity in saffron germplasm of Indian Kashmir." Bangladesh Journal of Botany 44, no. 4 (2018): 635–42. http://dx.doi.org/10.3329/bjb.v44i4.38635.

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Keeping in view the dearth of well-defined saffron germplasm, an exploration trip was conducted to collect saffron germplasm from the growing tracts of Kashmir valley. A total of 28 diverse accessions were collected and evaluated. Data recorded was subjected to basic statistical analysis viz., minimum, maximum, mean and coefficient of variance as well as Shannon-Weaver Diversity Index (SDI) was also worked out. Correlation study was done to know the extent and pattern of contribution among the traits and saffron yield. An attempt was made to quantify the extent of diversity present among the a
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Dissertations / Theses on the topic "Shannon-Weaver index diversity"

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Chapungu, Lazarus. "Impact of climate change on vegetative species diversity in Masvingo Province, Zimbabwe." Thesis, 2017. http://hdl.handle.net/10500/23781.

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Vegetative species diversity is under threat from environmental pressures, particularly climate change. As the impacts of climate change vary from place to place, response of vegetative species diversity to a changing climate also vary depending on geographical location. The response of vegetative species diversity under dry conditions in Zimbabwe is not well known. This study assessed the impact of climate change on vegetative species diversity under semiarid conditions of Masvingo province in Zimbabwe. This was achieved by determining climate change trends over a period of forty years
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Book chapters on the topic "Shannon-Weaver index diversity"

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Ortiz-Burgos, Selene. "Shannon-Weaver Diversity Index." In Encyclopedia of Estuaries. Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-8801-4_233.

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"Diversity (Shannon–Weaver index)." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_4594.

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Conference papers on the topic "Shannon-Weaver index diversity"

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Popović, Filip J., Tanja B. Trakić, Mirjana M. Stojanović, and Jovana M. Sekulić. "Abundance, species richness and diversity of earthworms (lumbricidae) in several habitats of the northern part of Jastrebac Mountain." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.280p.

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The aim of this study was to investigate the diversity of earthworms in different habitats (meadow, humid meadow, oak and beech forest). A total of nine earthworm species belonging to six genera were found in the studied habitats. In the studied habitats, the earthworm fauna was found to be different: the beech forest was richer in earthworms (6 taxa), while the oak forest was poorest in earthworms (3 taxa). The earthworm abundance was higher in the humid meadow (34 individuals), while was lower in the beech forest (17 individuals). A combination of the alpha diversity index (Shannon-Weaver, E
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Alia, Zerrouki, Kara Karima, Redjaimia Lilia, and Rached-Kanouni Malika. "FLORISTIC DIVERSITY AND STRUCTURAL CHARACTERIZATION OF THE FOREST OF CHETTABA (ALGERIA)." In GEOLINKS Conference Proceedings. Saima Consult Ltd, 2021. http://dx.doi.org/10.32008/geolinks2021/b2/v3/12.

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"The structure of various stands, defined as the diversity of trees in the stands, can be an indication of overall biodiversity and habitat suitability, be useful in predicting stand growth and provide stand details for forest inventories. In an effort to find sustainable resource management strategies, a study was conducted on the structural and ecological characteristics of stands in Chettaba forest (Algeria). In this study, six diversity indices were used to characterize the horizontal and spatial distribution of individuals in multi-species stands, using four plots, located in the Chettaba
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Durau, Carmen Claudia, Ana Codruta Chis, Adalbert Okros, and Casiana Doina Mihut. "FLORISTIC COMPOSITION AND FODDER VALUE OF SOME COMMUNAL PASTURES OF TIMIS COUNTY, ROMANIA: (A CASE STUDY)." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023/5.1/s20.16.

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Agri-fodder value, i.e., the diversity of floristic composition of communal pastures in Romania is strongly affected by impropper management practiced for the last three decades. Most permanent grassland areas are excessively grazed in addition to the effect of climate change on the multiplication and development of plant species making up the grassy cover. Communal pastures are the most important source of feed for animal growers in the territorial administrative units (TAUs) of the Timis County. Their current state is strongly correlated with grazing practices, with the maintenance of floris
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