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17 articles for “Species richness”
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Research ArticleOpen accessPhrase in the titleTemporal Variations in Abundance and Species Richness of Zooplankton with Emphasis on Ichthyoplankton in the Subtidal Waters of Umm Al-Namil Island, Northwestern Arabian Gulf of the ROPME Sea AreaMohammad Ali, Matrah Al-Mutairi, M.N.V. Subrahmanyam et al.Zooplankton, including the ichthyoplankton, abundance and species richness over time in the subtidal waters of Umm Al-Namil Island, Kuwait Bay, were sampled and quantified from September 2016 to August 2017. At the same period, physicochemical measurements (i.e., water temperature, pH, salinity, dissolved oxygen and nutrient concentrations) occurred. A total of 9 larval fish families were identified: Acropomatidae, Bregmacerotidae, Bythitidae, Clupeidae, … …American Journal of Environmental Sciences, Vol. 15, Issue 6 · 21 Jan 2020 · 7,829 accessesView PDFCite
Research ArticleOpen accessIn the keywordsChanges in the Composition and Diversity of Pasture Grass Due to the Influence of Grazing in the Steppe Zone of Northern KazakhstanAliya Baitelenova, Balzhan Akhylbekova, Meisam Zargar et al.Overgrazing poses a serious threat to the sustainability of steppe pasturelands in Northern Kazakhstan, where intensifying livestock pressure drives significant changes in vegetation composition, species diversity, and soil fertility. This study investigated the effects of grazing intensity on pasture vegetation and chestnut soil properties in the Zhaksyn district of the Akmola region. Field surveys were conducted in July-August 2024 using … …OnLine Journal of Biological Sciences, Vol. 26, Issue 1 · 31 Mar 2026 · 1,344 accessesView PDFCite
Research ArticleOpen accessIn the keywordsASSESSING THE EFFECTS OF LOGGING ACTIVITIES ON AVIAN RICHNESS AND DIVERSITY IN DIFFERENT AGED POST-HARVESTED HILL DIPTEROCARP TROPICAL RAINFOREST OF MALAYSIAM. N. Rajpar, M. ZakariaLogging activities have encroached into the hill dipterocarp tropical rainforest area since the lowland dipterocarp forests have decreased in size. Hill dipterocarp tropical rainforest is rich in habitat diversity and provide a variety of resources for avian species such as food, habitat and shelter. Therefore it is important to examine the logging effects of hill dipterocarp rainforest on avian species. … …American Journal of Applied Sciences, Vol. 11, Issue 9 · 15 Jul 2014 · 7,584 accessesView PDFCite
Research ArticleOpen accessIn the keywordsArthropods in Natural Communities in Mescal Agave (Agave durangensis Gentry) in an Arid ZoneMaría P. González-Castillo, Manuel Quintos Escalante, Gabriela Castaño-MenesesProblem statement: The arthropods have a very important role in the arid zones due to their interactions with many organism and because they constituted an important element in the structure of the plant community. Nevertheless their importance there are few knowledge about the community of arthropods associated to vegetation in arid zones in the North of Mexico. The present study … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 20 Aug 2011 · 8,665 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRestoration of Biodiversity and EcosystemIgnacio Santa-Regina, M. C. Santa-ReginaSuccession is one of the most studied processes in ecology and succession theory provides strong predictability. However, few attempts have been made to influence the course of succession thereby testing the hypothesis that the passage of one stage is essential to enter a next one. At each stage of succession ecosystem processes may be affected by the diversity of species … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 1 · 10 Mar 2013 · 6,989 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpecies Diversity of Lichens in the Burabay State National Park, KazakhstanAizhan Baubekova, Zhanilxan Bukabayeva, Assemgul Sarsenova et al.Lichens constitute essential components of terrestrial ecosystems, and comprehensive documentation of lichen diversity is fundamental for conservation and ecosystem management. This study investigated the species composition and ecological distribution of lichens in Burabay State National Nature Park, northern Kazakhstan. Established in 2000, the park encompasses over 100,000 hectares representing a unique forest-steppe ecotone surrounded by extensive steppe landscapes, supporting approximately … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 16 Feb 2026 · 1,833 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Altitude on Species Diversity and Vegetation Structure of Kigelia africana Parklands in CameroonAwé Djongmo Victor, Vroh Bi Tra Aimé, Noiha Noumi Valery et al.In the Faro Subdivision (North, Cameroon), there are populations of Kigelia africana, known by the common name “Dambale", whose variety is largely unknown. The study's goal is to demonstrate how altitude affects species diversity and vegetation structure in Kigelia africana parklands. To gather information for statistical analysis, a Randomized Complete Block Design (RCBD) was employed. A total of 90 quadrats … …American Journal of Agricultural and Biological Sciences, Vol. 20, Issue 1 · 20 Dec 2025 · 3,184 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Identification and Quantification of Marine Fish from Environmental DNA in Sulawesi Waters (Makassar Strait, Flores Sea and Bone Bay), IndonesiaNita Rukminasari, Andi Aliah Hidayani, Wilma Joanna Carolina Moka et al.The emergence of environmental DNA (eDNA) represents a recent methodological breakthrough for evaluating the presence of aquatic vertebrate species. This approach offers a relatively simple method with significant implications for conservation biology. Our study aim was to augment our understanding of marine fish biodiversity in Sulawesi waters. We employed eDNA metabarcoding to investigate fish biodiversity within Sulawesi waters, specifically focusing … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 5 Jul 2024 · 5,010 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpecies Assemblages and Distribution of Dinoflagellate Cysts from three Estuaries Sediment’s of Makassar Strait, Eastern IndonesiaNita Rukminasari, Akbar TahirMakassar Strait encompasses high fisheries resources and high biodiversity and primary productivity. Algae blooms often occur in these areas, but there is a lack of studies that have been carried out on HABs in these locations specifically determining the collection and abundance of dinocyst. The study aimed to determine species assemblages of dinoflagellate cysts from three estuaries of Makassar Strait. … …OnLine Journal of Biological Sciences, Vol. 21, Issue 2 · 8 May 2021 · 6,327 accessesView PDFCite
Review ArticleOpen accessIn the abstractApproaches for Conservation of an Ethnomedicinal Plant: Asparagus racemosus Willd.Shubha Thakur, Kishan Lal Tiwari, Shailesh Kumar JadhavIndia is one of the megadiversity regions over the globe, gifted with the immense forest resources having the richness of the medicinal plants. The increasing demand of herbal medicines has led to destructive harvesting practices hampering the existence of natural population. Asparagus racemosus, a female-friendly herb, is one such asset to Indian flora having numerous pharmacological applications. Steroidal saponins are … …OnLine Journal of Biological Sciences, Vol. 15, Issue 3 · 12 Jul 2015 · 7,311 accessesView PDFCite