Relevant bibliographies by topics / Simpson diversity

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Simpson diversity'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Simpson diversity"

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Gregorius, Hans-Rolf, and Elizabeth M. Gillet. "Generalized Simpson-diversity." Ecological Modelling 211, no. 1-2 (2008): 90–96. http://dx.doi.org/10.1016/j.ecolmodel.2007.08.026.

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Guiaşu, Radu Cornel, and Silviu Guiaşu. "Conditional and Weighted Measures of Ecological Diversity." International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 11, no. 03 (2003): 283–300. http://dx.doi.org/10.1142/s0218488503002089.

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Shannon's entropy and Simpson's index are the most used measures of species diversity. As the Simpson index proves to be just an approximation of the Shannon entropy, conditional Simpson indices of diversity and a global measure of interdependence among species are introduced, similar to those used in the corresponding entropic formalism from information theory. Also, since both the Shannon entropy and the Simpson index depend only on the number and relative abundance of the respective species in a given ecosystem, the paper generalizes these indices of diversity to the case when a numerical w
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Huang, Shaolin, та Gang Fu. "Impacts of Climate Change and Human Activities on Plant Species α-Diversity across the Tibetan Grasslands". Remote Sensing 15, № 11 (2023): 2947. http://dx.doi.org/10.3390/rs15112947.

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Plant species α-diversity is closely correlated with ecosystem structures and functions. However, whether climate change and human activities will reduce plant species α-diversity remains controversial. In this study, potential (i.e., potential species richness: SRp, Shannonp, Simpsonp and Pieloup) and actual plant species α-diversity (i.e., actual species richness: SRa, Shannona, Simpsona and Pieloua) during 2000–2020 were quantified based on random forests in grasslands on the Tibetan Plateau. Overall, climate change had positive influences on potential plant species α-diversity across all t
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Tian, Yuan, та Gang Fu. "Quantifying Plant Species α-Diversity Using Normalized Difference Vegetation Index and Climate Data in Alpine Grasslands". Remote Sensing 14, № 19 (2022): 5007. http://dx.doi.org/10.3390/rs14195007.

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Quantitative plant species α-diversity of grasslands at multiple spatial and temporal scales is important for investigating the responses of biodiversity to global change and protecting biodiversity under global change. Potential plant species α-diversity (i.e., SRp, Shannonp, Simpsonp and Pieloup: potential species richness, Shannon index, Simpson index and Pielou index, respectively) were quantified by climate data (i.e., annual temperature, precipitation and radiation) and actual plant species α-diversity (i.e., SRa, Shannona, Simpsona and Pieloua: actual species richness, Shannon index, Si
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Tuapetel, Friesland, Delly DP Matrutty, and Welem Waileruny. "Diversity of Demersal Fish Resources in Ambon Island Waters." Jurnal Iktiologi Indonesia 18, no. 3 (2019): 223. http://dx.doi.org/10.32491/jii.v18i3.315.

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The waters surrounding Ambon Island is a potential fishing gound for demersal fish resources, yet information regarding species diversity is still slightly understood. This research aimed to analyze the diversity of species and size of demersal fish around Ambon Island oceans. Data was collected based on experimental fishing using fish trap at two locations, in northern and southern waters of Ambon Island. The data were collected by experimental capture using fishing gear at two locations, namely northern waters (March-April 2015) and south of Ambon Island (July-October 2016). Methods of demer
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Lee, Jonq-Ying, and Mark G. Brown. "Consumer Demand for Food Diversity." Journal of Agricultural and Applied Economics 21, no. 2 (1989): 47–53. http://dx.doi.org/10.1017/s0081305200001163.

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AbstractIn this paper, consumer demand for food diversity is measured by the entropy and Simpson indices for budget shares. Results show that consumer demand for food diversity is related to total food expenditures and house-hold size and composition.
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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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Bílek, L., J. Remeš, O. Švec, and D. Zahradník. "On the way to continuous cover forest at middle elevations – the question of forest structure and specific site characteristics." Journal of Forest Science 59, No. 10 (2013): 391–97. http://dx.doi.org/10.17221/57/2013-jfs.

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The transformation process of even-aged forest stands to irregular forest stands on waterlogged sites after 20 years effort was analysed. Data from two 1-ha PRP was analysed with special focus on structural (Shannon Evenness Index, Simpson Index and Gini Index) and species (Shannon Evenness Index and Simpson Index) diversity. Different development on study plots confirmed that the highest structural diversity is not often compatible with the concept of species diversity. On PRP 1 high diameter differentiation has led to lower values of species diversity, while on PRP 2 rather moderate diameter
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GUIASU, RADU CORNEL, and SILVIU GUIASU. "NEW MEASURES FOR COMPARING THE SPECIES DIVERSITY FOUND IN TWO OR MORE HABITATS." International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 18, no. 06 (2010): 691–720. http://dx.doi.org/10.1142/s0218488510006763.

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Both the weighted entropy, which generalizes the Shannon entropy, and the weighted quadratic index, which generalizes the Gini-Simpson index, are used for getting a unified treatment of some diversity measures proposed recently in ecology. The weights may reflect the ecological importance, rarity, or economic value of the species from a given habitat. The weighted measures, being concave functions, may be used in the additive partition of diversity. The weighted quadratic index has a special advantage over the weighted entropy because its maximum value has a simple analytical formula which all
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Ogie-Odia, E. A., D. A. Eseigbe, F. N. Imade, et al. "Epiphyte diversity on phorophytes in Ambrose Alli University main campus, Ekpoma, Edo State, Nigeria." Nigerian Journal of Botany 37, no. 2 (2025): 159–75. https://doi.org/10.4314/njbot.v37i2.3.

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This study assessed epiphyte diversity on phorophytes across seven faculties at Ambrose Alli University, Ekpoma, Edo State, Nigeria. Data collected included phorophyte species, individual counts, height, diameter at breast height (dbh), types and quantities of epiphytes, growth habits and attachment locations. Eight epiphyte species from six families were identified, showcasing significant ecological diversity. The Faculty of Environmental Sciences exhibited the highest diversity (Simpson 1-D = 1; H = 1.1), followed by Engineering (Simpson 1-D = 0.68; H = 1.13) and Management Sciences (Simpson
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Dissertations / Theses on the topic "Simpson diversity"

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Pastro, Louise. "The effects of wildfire on small mammals and lizards in The Simpson Desert, Central Australia." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10032.

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Animals in arid central Australia have undergone widespread declines and extinctions over the past century. These losses have coincided with what appears to have been a sharp shift in the fire regime, from one dominated by many small scale burns to one dominated by infrequent yet intense and widespread wildfires. In this thesis I investigate the processes by which fire affects small mammal and lizard populations in the Simpson Desert, central Australia. I live-trapped small mammals and lizards, used assays of foraging behaviour, measured rainfall, undertook vegetation surveys, tracked predato
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Greene, Richard Royce Jr. "Religious Diversity in the Southeastern United States: An Exercise in Mapping Religious Diversity in the Region from 1980-2010." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1396983364.

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Robertson, Gail Alexandra. "Computerised methods for selecting a small number of single nucleotide polymorphisms that enable bacterial strain discrimination." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16284/1/Gail_Robertson_Thesis.pdf.

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The possibility of identifying single nucleotide polymorphisms (SNPs) that would be useful for rapid bacterial typing was investigated. Neisseria meningitidis was the organism chosen for modelling the approach since informative SNPs could be found amongst the sequence data available for multi-locus sequence typing (MLST) at http://www.mlst.net. The hypothesis tested was that a small number of SNPs located within the seven gene fragments sequenced for MLST provide information equivalent to MLST. Preliminary investigations revealed that a small number of SNPs could be utilised to highly dis
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Nascimento, Leonardo Barros. "CLASSIFICAÇÃO DE NÓDULOS PULMONARES EM MALIGNO E BENIGNO UTILIZANDO OS ÍNDICES DE DIVERSIDADE DE SHANNON E DE SIMPSON." Universidade Federal do Maranhão, 2012. http://tedebc.ufma.br:8080/jspui/handle/tede/485.

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Made available in DSpace on 2016-08-17T14:53:20Z (GMT). No. of bitstreams: 1 dissertacao Leonardo.pdf: 864322 bytes, checksum: 557c6817aff39c2f398ebe22a59ad5c6 (MD5) Previous issue date: 2012-04-20<br>FUNDAÇÃO DE AMPARO À PESQUISA E AO DESENVOLVIMENTO CIENTIFICO E TECNOLÓGICO DO MARANHÃO<br>Lung cancer is still the leading cause of cancer mortality worldwide, with one of the lowest survival rates after diagnosis. Therefore, early detection is important to increase the chances of curing the patient. The diagnosis is more accurate if the specialist has more information. In view of the above,
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NUNES, André Pereira. "DETECÇÃO DE MASSAS EM IMAGENS MAMOGRÁFICAS USANDO ÍNDICE DE DIVERSIDADE DE SIMPSON E MÁQUINA DE VETORES DE SUPORTE." Universidade Federal do Maranhão, 2009. http://tedebc.ufma.br:8080/jspui/handle/tede/1845.

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Submitted by Maria Aparecida (cidazen@gmail.com) on 2017-08-21T14:59:23Z No. of bitstreams: 1 Andre Pereira.pdf: 3105574 bytes, checksum: 06e2fe68d48179a3c62a46e447b82513 (MD5)<br>Made available in DSpace on 2017-08-21T14:59:23Z (GMT). No. of bitstreams: 1 Andre Pereira.pdf: 3105574 bytes, checksum: 06e2fe68d48179a3c62a46e447b82513 (MD5) Previous issue date: 2009-02-20<br>Breast cancer is one of the major causes of mortality among women throughout the world. Presently, the analysis of breast radiography is the most used method to early detection of this kind of cancer. It enables the identif
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SANTOS, Vanessa Kelly dos. "Uma generalização da distribuição do índice de diversidade generalizada por Good com aplicação em Ciências Agrárias." Universidade Federal Rural de Pernambuco, 2009. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5372.

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Submitted by (ana.araujo@ufrpe.br) on 2016-08-17T12:42:21Z No. of bitstreams: 1 Vanessa Kelly dos Santos.pdf: 364306 bytes, checksum: 6c79d0925f6821655f91bcd3c8eb64af (MD5)<br>Made available in DSpace on 2016-08-17T12:42:21Z (GMT). No. of bitstreams: 1 Vanessa Kelly dos Santos.pdf: 364306 bytes, checksum: 6c79d0925f6821655f91bcd3c8eb64af (MD5) Previous issue date: 2009-03-23<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Diversity as a concept was first introduced by Williams in Fisher et al. (1943). Later, Good (1953, 1982) proposed a generalized index that
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Trubovitz, Sarah. "Reconstructing the Great Ordovician Biodiversification Event through brachiopods of Oklahoma." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1461943954.

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Robertson, Gail Alexandra. "Computerised methods for selecting a small number of single nucleotide polymorphisms that enable bacterial strain discrimination." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16284/.

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The possibility of identifying single nucleotide polymorphisms (SNPs) that would be useful for rapid bacterial typing was investigated. Neisseria meningitidis was the organism chosen for modelling the approach since informative SNPs could be found amongst the sequence data available for multi-locus sequence typing (MLST) at http://www.mlst.net. The hypothesis tested was that a small number of SNPs located within the seven gene fragments sequenced for MLST provide information equivalent to MLST. Preliminary investigations revealed that a small number of SNPs could be utilised to highly dis
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Baldow, Christoph, Lars Thielecke, and Ingmar Glauche. "Model Based Analysis of Clonal Developments Allows for Early Detection of Monoclonal Conversion and Leukemia." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-221771.

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The availability of several methods to unambiguously mark individual cells has strongly fostered the understanding of clonal developments in hematopoiesis and other stem cell driven regenerative tissues. While cellular barcoding is the method of choice for experimental studies, patients that underwent gene therapy carry a unique insertional mark within the transplanted cells originating from the integration of the retroviral vector. Close monitoring of such patients allows accessing their clonal dynamics, however, the early detection of events that predict monoclonal conversion and potentially
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Baldow, Christoph, Lars Thielecke, and Ingmar Glauche. "Model Based Analysis of Clonal Developments Allows for Early Detection of Monoclonal Conversion and Leukemia." Public Library of Science, 2016. https://tud.qucosa.de/id/qucosa%3A30226.

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The availability of several methods to unambiguously mark individual cells has strongly fostered the understanding of clonal developments in hematopoiesis and other stem cell driven regenerative tissues. While cellular barcoding is the method of choice for experimental studies, patients that underwent gene therapy carry a unique insertional mark within the transplanted cells originating from the integration of the retroviral vector. Close monitoring of such patients allows accessing their clonal dynamics, however, the early detection of events that predict monoclonal conversion and potentially
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Books on the topic "Simpson diversity"

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Guajardo, Salomón Alcocer. Assessing Organizational Diversity with the Simpson Index. Cambridge Scholars Publishing, 2023.

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Joosen, Vanessa, ed. Connecting Childhood and Old Age in Popular Media. University Press of Mississippi, 2018. http://dx.doi.org/10.14325/mississippi/9781496815163.001.0001.

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Media narratives in popular culture often ascribe interchangeable characteristics to childhood and old age. In the manner of George Lakoff and Mark Johnson’s Metaphors We Live By, the authors in this volume envision the presumed semblance between children and the elderly as a root metaphor that finds succinct articulation in the idea that “children are like old people” and vice versa. The volume explores the recurrent use of this root metaphor in literature and media from the mid-nineteenth century to the present. The authors demonstrate how it shapes and is reinforced by a spectrum of media p
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Book chapters on the topic "Simpson diversity"

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Quicke, Donald L. J., Buntika A. Butcher, and Rachel A. Kruft Welton. "Species abundance, accumulation and diversity data." In Practical R for biologists: an introduction. CABI, 2021. http://dx.doi.org/10.1079/9781789245349.0018.

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Abstract Ecologists in particular are often interested in the species richness and diversity of groups of organisms, ranging from studies of small ecosystems to global patterns. In most cases it is not possible to count every individual or to detect every species, and so they use a variety of estimation methods and summary statistics that will be briefly introduce in this chapter. This chapter covers estimating species abundance and species richness by looking at accumulation curves. Analyzing diversity using tests such as the Shannon and Simpson diversity indices are also discussed. Finally,
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Quicke, Donald L. J., Buntika A. Butcher, and Rachel A. Kruft Welton. "Species abundance, accumulation and diversity data." In Practical R for biologists: an introduction. CABI, 2021. http://dx.doi.org/10.1079/9781789245349.0200.

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Abstract Ecologists in particular are often interested in the species richness and diversity of groups of organisms, ranging from studies of small ecosystems to global patterns. In most cases it is not possible to count every individual or to detect every species, and so they use a variety of estimation methods and summary statistics that will be briefly introduce in this chapter. This chapter covers estimating species abundance and species richness by looking at accumulation curves. Analyzing diversity using tests such as the Shannon and Simpson diversity indices are also discussed. Finally,
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Nascimento, Leonardo Barros, Anselmo Cardoso de Paiva, and Aristófanes Corrêa Silva. "Lung Nodules Classification in CT Images Using Shannon and Simpson Diversity Indices and SVM." In Machine Learning and Data Mining in Pattern Recognition. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31537-4_36.

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Alonso, María Carmen, and María Angeles Gil. "Testing the convenience of a variate for stratification in estimating the Gini-Simpson diversity." In Advances in Intelligent Computing — IPMU '94. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/bfb0035952.

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Kumar, Sunit, and Satish Kumar. "Multi-attribute Decision-Making Problem Based on TODIM with Gini Simpson Index of Diversity for Intuitionistic Fuzzy Sets." In Proceedings of International Conference on Advanced Computing Applications. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5207-3_63.

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Fuchs, Robert, Caroline Wiltshire, and Priyankoo Sarmah. "The role of English in the linguistic ecology of Northeast India." In Hamburg Studies on Linguistic Diversity. John Benjamins Publishing Company, 2025. https://doi.org/10.1075/hsld.9.13fuc.

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Abstract India is the world’s most populous country and a hub of linguistic diversity. Within this diverse country, India’s Northeast is a region that is historically, geographically, religiously, and linguistically more distinct from the rest of India than probably any other region, but it has received scant attention from academic research. As a locus of contact and exchange between South Asia, Southeast Asia, and East Asia, it is one of the linguistically most diverse regions in the world. Many of its states lack a single local majority language, potentially contributing to the more widespr
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Nunes, André Pereira, Aristófanes Corrêa Silva, and Anselmo Cardoso de Paiva. "Detection of Masses in Mammographic Images Using Simpson’s Diversity Index in Circular Regions and SVM." In Machine Learning and Data Mining in Pattern Recognition. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03070-3_41.

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Kinnison, Michael T., and Andrew P. Hendry. "From Macro- to MicroEvolution Tempo and Mode in Salmonid Evolution." In Evolution Illuminated. Oxford University PressNew York, NY, 2003. http://dx.doi.org/10.1093/oso/9780195143850.003.0008.

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Abstract What are the salient features of salmonid evolution? “Diversity” is perhaps the most obvious, as evidenced by many of the contributions to this book. Moreover, an appreciation of the prevalence and importance of salmonid diversity is reflected in the emphasis placed on protection and management at subspecific levels (Waples 1991a; Ford 2003-this volume). However, diversity without pattern can give the impression of chaotic evolution. The aim of this chapter is therefore to interpret the great diversity of salmonids in the context of the evolutionary patterns and processes through whic
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Price, Trevor. "Sexual selection and natural selection 1n bird speciation." In Evolution of Biological Diversity. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198503057.003.0005.

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Abstract Natural selection, sexual selection and random drift have all been postulated to play roles in the origin of species. Natural selection has the strongest empirical support, because rapid speciation is best documented in adaptive radiations: the more or less simultaneous divergence of numerous lines from a common ancestor to exploit new adaptive zones (Simpson 1953, p.223; Schluter 1998). Artificial selection experiments, mimicking natural selection, often produce reproductive isolation as a correlated response (Rice and Hostert 1993). Comparisons of sister clades with differing number
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Nee, Sean, Pierre-Henri Gouyon, Godfrey Hewitt, and Jean-Jacques Jaeger. "Overview." In Aspects of the Genesis and Maintenance of Biological Diversity. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198548843.003.0002.

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Abstract The origins of biodiversity lie, of course, in evolutionary history. In the past, the fossil record has been our only source of information into evolutionary patterns, but fossil data are now being supplemented in an unexpected way: it is coming to be understood that phylogenies constructed from molecular data, of which we have an ever increasing, high-quality supply, also provide information about the evolutionary past. The theory which underpins such inferences, the theory of family trees, is also the basis of contemporary approaches in population genetics to using molecular data in
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Conference papers on the topic "Simpson diversity"

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SÎTNIC, Veaceslav, Victoria NISTREANU, and Natalia CARAMAN. "Some aspects of the dynamics of the relative density of small rodents in different types of biotopes." In "Instruire prin cercetare pentru o societate prosperă", conferinţă ştiinţifico-practică internaţională. Ion Creangă Pedagogical State University, 2024. https://doi.org/10.46727/c.v1.16-17-05-2024.p294-298.

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The research was carried out in various biotopes during the years 1975-2023. The highest values of the relative density of small rodents were recorded in the wheat field 30% and alfalfa 24.6% in the autumn period, followed by the agrocenosis ecotone with the forest – 23.1% and the forest canopy with 19.9%. An increase in the value of the Simpson diversity index from April (0.38) to June (0.52) was determined for the rodent community in the winter wheat field and a decrease in the forest coenosis from April (0.54 ) up to 0.46 in June. In September, for the corn field, the value of the diversity
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Ewutanure, S. J., and T. E. Binyotubo. "Impacts of Anthropogenic Activities on the Fish Compositions and Diversity of Okerenkoko Estuarine, Delta State, Nigeria." In 27th iSTEAMS-ACity-IEEE International Conference. Society for Multidisciplinary and Advanced Research Techniques - Creative Research Publishers, 2021. http://dx.doi.org/10.22624/aims/abmic2021-v2-p2x.

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Water quality impairment due to anthropogenic activities affects fishery resources. Surface water bodies in the Niger Delta Region of Nigeria are being adversely impacted by the effects of pollution and the destruction of its fishery resources. This study was carried out to assess the impacts of anthropogenic activities on the fish compositions and diversity of Okerenkoko Estuarine, Delta State, Nigeria. Okerenkoko Estuarine (62.79 Km) was spatially stratified into five stations (Z1, Z2, Z3, Z4 and Z5) based on nearness to major anthropogenic activities. Temporal stratification covered June to
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Mirabolfathi, Zahra. "An Exploration of the Cultural Teachings Seen in Post-colonial Indigenous Literatures: Learning Across the Divide." In 5th World Conference on Arts, Humanities, Social Sciences and Education. Eurasia Conferences, 2024. http://dx.doi.org/10.62422/978-81-968539-1-4-047.

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Canada’s ongoing colonial relationship with its Indigenous peoples reflects its overall views on multiculturalism and racial diversity. In her “Land as Pedagogy,” Indigenous scholar Leanne Simpson describes how Indigenous cultures use their traditional lands as a heuristic device to continue the education of their cultural customs and histories throughout generations. Conversely, in Intimacies of Four Continents, Lisa Lowe argues for the sharing of colonial experiences as a way of building intimate connections despite the barriers between ‘continents’ upheld by colonial frameworks. In this tal
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Мальков, Ю. Г. "SPECIES DIVERSITY OF NONGAME ORNITHOLOGICAL FAUNA IN FOREST BIOTOPES OF MARI EL REPUBLIC AS A KEY TO SUSTAINABILITY OF FOREST ECOSYSTEMS." In Лесные экосистемы в условиях изменения климата: биологическая продуктивность и дистанционный мониторинг. Crossref, 2019. http://dx.doi.org/10.25686/8047.2019.5.58817.

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На основании орнитологических учетов сделана попытка оценки видового состава и плотности орнитофауны, не отнесенной к объектам охоты, в основных лесных биотопах Республики Марий Эл, распределения видового состава в зависимости от структуры лесного биотопа, формирующего кормовые, защитные и гнездопригодные условия. Определены видовой состав и плотность населения птиц в таких биотопах, как чистые хвойные, смешанные хвойно-лиственные насаждения разного возраста, околоводные и полевые биотопы. В процентном отношении наибольшую долю от общего числа учтенных видов занимают представители семейства Сл
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Zhou, Jianghong, Eugene Agichtein, and Surya Kallumadi. "Diversifying Multi-aspect Search Results Using Simpson's Diversity Index." In CIKM '20: The 29th ACM International Conference on Information and Knowledge Management. ACM, 2020. http://dx.doi.org/10.1145/3340531.3412163.

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Jakovljević, Marija M., Simona R. Đuretanović, Marijana D. Nikolić, et al. "Comparative assessment of fish diversity indices in protected Vlasina Reservoir and unprotected Gruža Reservoir." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.326j.

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The species diversity indices, namely the Shannon Index (H), Reciprocal Simpson’s Index (1/D), Fisher’s Alpha Diversity Index (A), and Pielou’s Evenness Index (J), were calculated for both the protected Vlasina Reservoir and the unprotected Gruža Reservoir. A total of 15 fish species were identified in the Vlasina Reservoir during the investigation period from 2003 to 2022, while the Gruža Reservoir revealed 10 fish species within the period from 2013 to 2021. The obtained values of the H, 1/D, and A indices, were not considerably high, sometimes even lower than expected, showing a slight incr
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Salahi, Towhid, Hassan Pourbabaei, Mehrdad Ghodskhah, Maziar Salahi, and Sarkhosh Karamzadeh. "Study on Vegetation Composition in Broadleaved and Coniferous Plantations, Bibiyanlou’s Forest Park, Astara, Iran." In 3rd International Congress on Engineering and Life Science. Prensip Publishing, 2023. http://dx.doi.org/10.61326/icelis.2023.20.

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The aim of this study was to investigate vegetation composition in hardwood and conifers Plantation in 220 ha of Pinus taeda and alder and poplar hardwood plantation and its comparison with natural forests in Bibiyanlu protected forest park at Astara. A total of 60 sampling plots of 1000 m2 by randomly-systematic method using 150 × 150 m grid in plantation and 200 × 200 m in natural forest was implemented. Rosaceae and Aspidiaceae family had the highest species richness in the study area, respectively. The results of the classification of life forms based on Rankayer method showed that Hemicry
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Reports on the topic "Simpson diversity"

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Савосько, Василь Миколайович, Наталія Вікторівна Товстоляк, Юрій Васильович Лихолат, and Іван Панасович Григорюк. Structure and Diversity of Urban Park Stands at Kryvyi Rih Ore-Mining & Metallurgical District, Central Ukraine. Podgorica, 2020. http://dx.doi.org/10.31812/123456789/3946.

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The present study examines the relationships between structure (floristic composition, dendrometric parameters), diversity (diversity and evenness indexes) of urban forest park stands and the ecological (soil fertility, soil moisture), environmental factors (air pollution). The study is based on the forest park stands inventory data, performed from 2012 to 2017 in Kryvyi Rih City, Central Ukraine. The floristic compositions of the urban forest park stands are poor. There are only 23 species that belong to 14 families and 12 genera. More families were represented by at least more than 2% of tax
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