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Dash, Madhusmita
- Biodiversity Conservation and Local Livelihoods: A Study on Similipal Biosphere Reserve in India
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PDF Views:162
Authors
Affiliations
1 Department of Humanities and Social Sciences, Indian Institute of Technology, Kharagpur, Kharagpur – 721302, West Bengal, IN
1 Department of Humanities and Social Sciences, Indian Institute of Technology, Kharagpur, Kharagpur – 721302, West Bengal, IN
Source
Journal of Rural Development, Vol 32, No 4 (2013), Pagination: 409 - 426Abstract
Over-exploitation of natural resources and changing climatic conditions due to global warming are responsible for rapid loss of biological diversity. Creation of protected areas (PAs) across the globe which forms a critical component in global biodiversity conservation efforts are primarily designed for preventing further loss of species by restricting human use of natural resources. The Similipal Biosphere Reserve (SBR) in the Indian State of Odisha is the sixth largest biosphere reserve in the country and forms a major part of the World Network of Biosphere Reserves. However, currently the reserve is under increasing pressure from growing human population that directly depends on the reserve for their livelihoods. The objectives of the present study are to develop a comprehensive understanding of the problems facing the SBR; and identify and analyse different factors that determine the extent of dependency of villages located in and around the reserve for extraction of non-timber forest products (NTFPs). The paper reviews the existing studies on the SBR by using the DPSIR framework for an in-depth understanding of interaction between local population and the biosphere reserve. Econometric techniques and descriptive statistics are applied to analyse the secondary data collected from 136 villages located in and around the reserve. The results show that economically poor villages and villages having more male members are likely to extract more NTFPs from the reserve. Villages located in transitional and buffer zones are likely to extract more NTFPs compared to villages that are in core zone. Designing appropriate and effective local institutions that would foster biodiversity conservation as well as livelihoods and structure the community behaviour are widely considered as the panacea for this problem.- Difference in Synonymous Polymorphism Related to Codon Degeneracy between Co-Transcribed Genes in the Genome of Escherichia coli
Abstract Views :53 |
PDF Views:42
Authors
Pratyush Kumar Beura
1,
Piyali Sen
2,
Ruksana Aziz
1,
Chayanika Chetia
1,
Madhusmita Dash
3,
Siddhartha Shankar Satapathy
2,
Suvendra Kumar Ray
1
Affiliations
1 Department of Molecular Biology and Biotechnology, Tezpur University, Napaam 784 028, IN
2 Department of Computer Science and Engineering, Tezpur University, Napaam 784 028, IN
3 Department of Electronics and Communication Engineering, National Institute of Technology, Jote, Papum Pare 791 113, IN
1 Department of Molecular Biology and Biotechnology, Tezpur University, Napaam 784 028, IN
2 Department of Computer Science and Engineering, Tezpur University, Napaam 784 028, IN
3 Department of Electronics and Communication Engineering, National Institute of Technology, Jote, Papum Pare 791 113, IN
Source
Current Science, Vol 125, No 8 (2023), Pagination: 871-877Abstract
In our study, we compared synonymous polymorphism in co-transcribed gene pairs within five well-known Escherichia coli operons (rpoB/C, lacZ/Y, kdpA/B, araB/A and bcsA/B). Interestingly, the transition to transversion ratio between gene pairs were different due to their compositional differences of two-fold and four-fold degenerate codons. The differences in polymorphism spectra were more pronounced in four-fold and six-fold codons compared to two-fold degenerate codons. Notably, rpoB and rpoC showed significant distinctions in UCC, GUA, CCG, GCU, GGC and CGC codons. Similar trends were observed in other gene pairs, particularly in higher degenerate codons. Notably, two-fold degenerate codons primarily exhibited synonymous polymorphisms through transitions, while higher degenerate codons encompassed both transition and transversion events. This underscores the intriguing role of degenerate codons in molecular evolution.Keywords
Base Substitution, Codon Degeneracy, Co-Transcribed Genes, Replication and Transcription, Synonymous Polymorphism.References
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