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All Journal Asian Journal of Science, Technology, Engineering, and Art
Das, Bishnu Dev
Unknown Affiliation
Arts Computer Science & IT Engineering Social Sciences

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Impact Assessment of Invasive Alien Plant Species on Chimdi (Barju) Lake of Eastern Nepal Das, Bishnu Dev; Sharma, Upasana
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 2 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i2.4896

Abstract

The present study has been carried out to evaluate the impact assessment of invasive alien plant species on Chimdi Lake using focus group discussion method. Chimdi (Barju) Lake is an important wetland in Eastern Nepal, faces ecological challenges due to the rapid spread of invasive alien plant species. Assessing the impact of these species is essential to understand their effects on the lake's biodiversity and ecosystem services and to develop effective management strategies for the conservation of the lake. The lake was found to be dominated by two aquatic IAPS, Pontederia crassipes followed by Ipomoea carnea. Additionally, eight other terrestrial IAPS (Ageretina adenophora, Chromolaena adorata, Lantana camara, Mikania micrantha, Mimosa pudica, Senna occidentalis., Senna tora, and Xanthium strumarium) were also recorded from the lake. Apart from these, there were several more macrophytes and hydrophytes, such as Nelumbo nucifera, Nymphaea alba, Ipomoea aquatica, etc., which created a thick layer of peat over lake water. These IAPS characteristics encourage growth and cover in water bodies, which block sunlight, change the chemistry of the water, and also reduce the habitat quality of native water animals and plants.
An assessment of Genetic and Social Aspects of Breeding (Endogamy and Exogamy Marriages) Practices in Homo sapiens Das, Bishnu Dev; Paudel, Niroj
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 2 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i2.5233

Abstract

This study provides an extensive evaluation of the genetic and social aspects of breeding practices, specifically endogamy and exogamy, in Homo sapiens. Endogamy, the custom of being married within the custom of being married within a specific social, ethnic, or religious group, and exogamy, the tradition of being married outside one’s group, have profound implications for both genetic diversity and social structures. Socially, endogamy reinforces cultural identity and group cohesion, preserving traditional practices and hierarchical structures within communities. Conversely, exogamy promotes social integration and the alliances forming between various groups, reflecting modern shifts towards individual choice and inclusivity. Genetically, endogamy can lead to reduced genetic diversity and an increased risk of hereditary disorders due to inbreeding. Populations practicing endogamy may exhibit higher frequencies of genetic diseases as a result of the accumulation of deleterious alleles within a closed gene pool. In contrast, exogamy enhances genetic diversity, which can improve overall population health and adaptability by reducing the risks associated with inbreeding and introducing new genetic variations. However, exogamy may also dilute specific genetic adaptations unique to certain environments. The study highlights how these breeding practices impact genetic health and social dynamics, illustrating the balance between preserving cultural heritage and fostering genetic diversity. The findings underscore the importance of understanding these practices in the context of modern societal changes and technological advancements, which continue to shape human reproduction and social organization. This assessment provides valuable insights into the evolving nature of human breeding practices and their implications for future genetic and social outcomes.
Co-Authors Paudel, Niroj Sharma, Upasana