biodiversity management
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2021 ◽  
Author(s):  
Nasim Ahmad Ansari ◽  
Cahyono Agus ◽  
Edward Kweku Nunoo

2021 ◽  
Vol 1 (2) ◽  
pp. 45-62
Author(s):  
Djongmo Victor Awé ◽  
Noumi Valery Noiha ◽  
Bi Tra Aimé Vroh ◽  
Louis Zapfack

2021 ◽  
Vol 19 (1) ◽  
pp. 259-268
Author(s):  
BK Pradhan ◽  
K Rayamajhi ◽  
S Khanal

The study was conducted in Nawalpur district of Nepal to assess status of on-farm management and associated knowledge of agrobiodiversity. Further, this study identified the farmers perception and their local interventions in on-farm agrobiodiversity conservation and management. The snowball and simple random sampling technique were used to identify the farmers practicing on-farm management and those who do not respectively. The pretested questionnaire was administered to 100 farmers of two villages, 50 from each village, from 2nd to 5th March 2018. Descriptive and analytical statistical tools were used to determine and compare the factors associated with on-farm management of agrobiodiversity. The study revealed that out of 98.0% of the respondents practicing on-farm management, almost all had home garden followed by 74.50% involved in value addition, 59.20% agrodiversity fair, 55.10% Community Biodiversity Management (CBM) and 36.10% travelling seminar. There was a significant relation between the type of the farming system and CBM (at p 0.00), travelling seminar (at p 0.043) and value addition (at p 0.036). The majority of respondents were commercial farmers, they sell what they produce for livelihood, and were practicing on-farm management of agrobiodiversity. Different means of information were used, where major being the information given by the respondents. Lack of government’s technical support and information on Community based Biodiversity Management (CBD), were the major reasons for farmers for not being able to acquaint with it, and practice it on local conditions. Proper training and awareness, agricultural promotion programs are the absolute imperative to improve on-farm agrobiodiversity conservation and management status. SAARC J. Agric., 19(1): 259-268 (2021)


2021 ◽  
Vol 13 (10) ◽  
pp. 5609
Author(s):  
Alexander Wezel ◽  
Sibylle Stöckli ◽  
Erich Tasser ◽  
Heike Nitsch ◽  
Audrey Vincent

An ongoing decrease in habitat and species diversity is occurring in many areas across Europe, including in grasslands in mountain areas, calling for adapted biodiversity management and measures. In this context, we carried out 79 interviews with grassland farmers in five alpine mountain regions in Germany, France, Austria, Italy, and Switzerland. We analyzed farmers’ perceptions about the functions and services of their grasslands, how they qualify “good” grasslands, which grassland management practices have changed over the last 10 years, and proposals to increase species diversity on the farm. They related them primarily to cultural ecosystem services, secondly to provisioning services, and thirdly to regulating and supporting services. Good pastures or meadows were mostly related to composition, quality of forage and productivity, structural criteria, and certain characteristics of soils and topography. The measures for increasing biodiversity that were most frequently proposed were upgrading of forest edges, planting hedges or fruit trees, less or late grassland cutting, reduction or omission of fertilization, and more general extensification of farm productions. Factors hindering the implementation of these measures were mainly increased workload, insufficient time, and a lack of financial means or support to cover additional costs for biodiversity management. These factors have to be taken specifically into account for future policies for enhanced biodiversity management of grasslands, also beyond mountainous areas. Overall, we found that farmers have good but varying knowledge about biodiversity management of their grasslands, but also different perspectives on how to improve it. Here, local initiatives that bring together farmers and flora or fauna specialists to exchange knowledge could be designed and used in participatory pilot schemes to enhance the implementation of improved biodiversity management.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nathaniel T. Marshall ◽  
Henry A. Vanderploeg ◽  
Subba Rao Chaganti

AbstractEnvironmental DNA (eDNA) analysis has advanced conservation biology and biodiversity management. However, accurate estimation of age and origin of eDNA is complicated by particle transport and the presence of legacy genetic material, which can obscure accurate interpretation of eDNA detection and quantification. To understand the state of genomic material within the environment, we investigated the degradation relationships between (a) size of fragments (long vs short), (b) genomic origins (mitochondrial vs nuclear), (c) nucleic acids (eDNA vs eRNA), and (d) RNA types (messenger (m)RNA vs ribosomal (r)RNA) from non-indigenous Dreissena mussels. Initial concentrations of eRNA followed expected transcriptional trends, with rRNAs found at > 1000 × that of eDNA, and a mitosis-associated mRNA falling below detection limits within 24 h. Furthermore, the ratio of eRNA:eDNA significantly decreased throughout degradation, potentially providing an estimate for the age of genomic material. Thus, eRNA quantification can increase detection due to the high concentrations of rRNAs. Furthermore, it may improve interpretation of positive detections through the eRNA:eDNA ratio and/or by detecting low abundant mitosis-associated mRNAs that degrade within ~ 24 h.


2021 ◽  
pp. 85-111
Author(s):  
Amrina Shafi ◽  
Farhana Hassan ◽  
Insha Zahoor ◽  
Umer Majeed ◽  
Firdous A. Khanday

Author(s):  
Gaurav Singh ◽  
◽  
Garima Dukariya ◽  

India, a mega varied nation with merely 2.5% of the earth’s total land region, shelters approx. seven to eight % of entire documented species, comprises of 45,000 floral species and 97,000 species of animals. Although, India can exhibit a notable variety of life diversity but there is barely any possibility for sense of security. The biodiversity experiences a variety of threats like overexploitation of natural resources, climate change, land use changes in natural habitats and spread of invasive species. Number of actions comprising facilitating strategy and official framework, have been put in place to mainstream environment, together with biodiversity. To attain the goals of Convention on Biodiversity, Indian government proclaimed the ‘Biological Diversity Act’ in 2002. The NBA founded under this act operates controlling, advisory and facilitative roles on matters of conservation, balanced usage of biological resources and fair and equitable sharing of benefits of use. The NBA operates through SBBs at the state level and BMCs at the regional level to execute biodiversity policies via development of People's Biodiversity Registers. All these efforts will help in moving forward in the direction of attaining objectives for biodiversity protection and human development. This review summarized the structure of multi-tier system of National Biodiversity Authority with focus on Biodiversity Management Committee and their roles in conservation.


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