Abstract This study presents a thorough examination of the chemical properties inherent to soil, with a focus on the unique context of Bangladesh. Soil functions are intricately linked to its chemical composition, which plays a vital role in determining agricultural productivity and ecological vitality. The soil within Bangladesh's geographical boundaries is characterized by its richness and fertility, contributing significantly to its agricultural output and overall ecosystem health. By delving into the chemical properties of Bangladeshi soil, this review aims to enhance our understanding of this dynamic ecosystem. Insights gained from this exploration can shed light on factors influencing soil fertility, nutrient availability, and overall ecosystem health, thereby informing strategies for sustainable land management and agricultural practices in Bangladesh and beyond.

Abstract Acanthodactylus savignyi is one of Algeria's endemic and rare reptile species. A population of this species has been identified in a new locality within the Sidi Bel Abbes region in the Northwest of Algeria. This study provides a brief description of the species in this explored area, highlighting its ecological significance and potential conservation needs.

Abstract Calotropis procera (Aiton) R. Br. is flowering desert plant species. C. procera is a broad leaves, evergreen shrub of the milk weed family. C. procera is playing a positive economic and ecological role in the conditions of aridity. The seedling growth ability of C. procera found well adapted in dry climatic conditions. The different parts (leaves, fruits, flower, bark, stem, whole part) of C. procera used for the treatment of diarrhea, malaria, cancer, jaundice, rheumatism, fever, diabetes, and many skin disease problems traditionally since long period of human beings. C. procera also utilized for fodder, fuel, phytoremediation and synthesis of nanoparticles. The published research article data was searched from different electronic engines English databases likewise, Google, Google Scholar, NIH (National Library of Medicine), Conbio (Society for Conservation of Biology), PubMed and science direct. The goal of this review was to search and analyze the research articles available covering period of 1981-2024 on C. procera. The C. procera is playing helping role in balancing the desert ecosystem due to its better adaptation potential to such diverse climatic conditions. Many researchers have reported that the change of climatic conditions, scarcity of water and indiscriminate discharge of various types of toxic pollutants, overgrazing, and some natural activities responsible for the main reason of decline of this plant species since last couple of decades very rapidly. The present review findings would be helpful for conservation groups, ecologist, nongovernmental organizations, and governmental sectors, researchers, land manager, environmental manager and field management, industrial sectors and pharmaceutical sectors are working on this aspect at regional and international levels.

Abstract A 41% of arthropod species are declining, and one-third of all species are threatened by extinction. Changes in land use are recognized as the primary cause of this decline. The scarcity of data for the Southern Hemisphere is partly due to limited funding but particularly due to the hyperdiversity of tropical regions. The objective of this study was to investigate the presence of this issue in scientific articles and the contribution of insects to the total number of threatened species in Argentina. Globally, the percentage of articles related to insect extinctions in Google Scholar has grown exponentially over the past twenty years, from 0.42% in 2000 to 6% in 2021. However, no significant growth was found in the number of articles on this topic in Argentina during the study period. Currently, only 23 insect species are recognized as at risk out of a total of 572 threatened species according to the "IUCN Red List of Threatened Species" for Argentina. These species belong to the orders Odonata (8), Coleoptera (1), Lepidoptera (2), Hymenoptera (11), and Orthoptera (1 species), representing only 4% of the total threatened species. In comparison, it is estimated that 26% and 27% of threatened species in the much less diverse faunas of Germany and the United Kingdom, respectively, are insects. These results suggest that the percentage of endangered insects in Argentina is being underestimated due to taxonomic and population knowledge gaps, consistent with reports by other authors. In hyperdiverse countries like ours, only molecular techniques can process large samples quickly enough to obtain estimates of insect diversity before they disappear.

Abstract Albizia lebbeck (L.) Benth. is a multipurpose fastly growing woody flowering plant species which helps in maintaining the quality of environment. A. lebbeck is perennial tree, widely grown in Tropical Asia, Tropical Africa, North Australia and in Pakistan as ornamental tree and street tree for shade. The leaves, fruits, flowers, bark, stems, seeds and whole parts of A. lebbeck have traditionally been used to cure asthma, malaria, cancer, dysentery, jaundice, rheumatism, diabetes, and many skin disease problems in human beings.  The phytochemical studies have shown the presence of protein, carbohydrates, minerals, fatty acids, minerals and vitamins. The seed germination and seedling growth abilities of a tropical plant species, A. lebbeck respond differently to the immediate environmental conditions. A. lebbeck also plays a helping role in balancing the ecosystem due to its better adaptation potential to climatic conditions. However, scarcity of water, increase in temperature, indiscriminate discharge of toxic pollutants, deforestation, global warming, automobile emission, and anthropogenic activities are the main reasons for decline of this plant for last couple of decades. The objective of this review is to search and analyze the scattered research articles available on the ecological and economic properties of A. lebbeck. In this regard, the published research articles was searched from different electronic search engines, such as, Google Scholar, NIH (National Library of Medicine), Conbio (Society for Conservation of Biology), PubMed and ScienceDirect covering the period 1986–2024. The findings would be helpful for conservation groups, plant ecologists, governmental and nongovernmental environmental protection organizations, researchers, land managers, environmental managers, horticultural, floriculture managers, industrial sectors, and pharmaceutical sectors that are working at regional and international levels for A. lebbeck.