Bhutan Journal of Natural Resources and Development最新文献

A Preliminary Survey of Pet Dogs Roaming Behaviour in the Periphery of Protected Area in Bhutan: A Case Study in Haa District 不丹保护区周边宠物犬漫游行为的初步调查——以哈阿地区为例

Bhutan Journal of Natural Resources and Development Pub Date : 2022-12-30 DOI: 10.17102/cnr.2022.76

T. Dorji, T. Tenzin, K. Rinzin, Hiruka Mahat, W. Phimpraphai, Michel de Garine-Wichatitsky

{"title":"A Preliminary Survey of Pet Dogs Roaming Behaviour in the Periphery of Protected Area in Bhutan: A Case Study in Haa District","authors":"T. Dorji, T. Tenzin, K. Rinzin, Hiruka Mahat, W. Phimpraphai, Michel de Garine-Wichatitsky","doi":"10.17102/cnr.2022.76","DOIUrl":"https://doi.org/10.17102/cnr.2022.76","url":null,"abstract":"Free-roaming pet dogs pose threats to humans, livestock, wild animals, and the environment through dog bites and the transmission of diseases. We used TK-STAR© GPS-collars designed for tracking pet dogs to study the movement distance and activity range of pet dogs in Haa, western Bhutan. A total of 34 dogs or pet dogs (Uesu gewog, n = 17; Katsho gewog, n = 17) consisting of 18 (53%) female and 16 (47%) male dogs were collared to trace their movement pattern for 24 hours. In total, 8,109 GPS fixes were recorded and pet dogs travelled a distance of 258.5 ± 8.0 m (mean ± SE), and the maximum distance travelled was 9,472 m in 24 hours. The maximum distance travelled by pet dogs in Katsho and Uesu were 7,916.25 and 9,472 m respectively. The daily activities of pet dogs which include a search for food, exercise, walking, playing, and hunting were less than 1,500 m 2 . The 95% activity range of pet dogs in Uesu was 1,440 m 2 and 1,200 m 2 in Katsho gewog without any significant differences between the two gewogs. The majority (81%) of the GPS fixes were located within the gewogs and most of the dogs remained close to human settlements. None of the tracked dogs of Uesu and Katsho gewog entered protected areas. One of the pet dogs that travelled approximately 5,000 m from the home premises of the owner was found to be seropositive against canine distemper virus indicating a risk of disease transmission from dogs to endangered wildlife. So, it is recommended to make pet owners responsible by providing training on proper housing and management to con-trol the country's free-roaming pet dog population.","PeriodicalId":252240,"journal":{"name":"Bhutan Journal of Natural Resources and Development","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131064101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribution Extension of Paphiopedilum fairrieanum(Lindl.) Stein (Orchidaceae: Cypripedioideae) and Spathoglottis jetsuniaeGyeltshen, Tobgyel & Dalström (Orchidaeceae: Collabiinae) in Bhutan

Bhutan Journal of Natural Resources and Development Pub Date : 2022-12-30 DOI: 10.17102/cnr.2022.78

Yeshi Phuntsho, Cheten Dorji, Gyeltshen Gyeltshen, Dorji Drukpa, Jigme Zangpo, T. Dorji, Kinley Wangmo, Kinley Kinley, T. Wangchuk, C. Dorji

引用次数: 0

Farmers’ Perception on Pollinators and Apple Pollination in Western Bhutan 不丹西部农民对传粉媒介和苹果授粉的看法

Bhutan Journal of Natural Resources and Development Pub Date : 2022-12-30 DOI: 10.17102/cnr.2022.75

K. Dorji, L. Marshall, S. Tashi, K. Biesmeijer

{"title":"Farmers’ Perception on Pollinators and Apple Pollination in Western Bhutan","authors":"K. Dorji, L. Marshall, S. Tashi, K. Biesmeijer","doi":"10.17102/cnr.2022.75","DOIUrl":"https://doi.org/10.17102/cnr.2022.75","url":null,"abstract":"Apples are one of the most important global fruit crops both in terms of yield and economic value, and rely on insect pollination. Pollination has been shown to increase apple production and economic value. The apple production in Bhutan has decreased from 7,051 MT in 2014 to 3,684 MT in 2018. Among the factors identified for the decline of apple quality and yield, pollinator deficits in orchards and inefficient pollination are hypothesised to be less recognised among Bhutanese farmers. Here we surveyed the knowledge and perception of farmers towards apple pollination and pollinators in the three dominant apple-producing districts of Bhutan: Thimphu, Paro, and Haa. One hundred and five farmers (35 from each district) were interviewed using a semi-structured questionnaire. When asked about the yield trend compared to previous years, 74.3% of the respondents noticed a decrease in yield compared to the year 2019, and 96.2% of the respondents said yield has decreased over the last five years. Sixty percent of the farmers were unaware of apple pollination and the importance of pol-linators. The farmers could not differentiate between different pollinator species, with honeybees be-ing the only pollinator known to the farmers. Education and years of working experience were found to influence farmers’ knowledge about pollinators and apple pollination. This study establishes base-line information of farmers’ knowledge in Bhutan, which will be useful to improve farm management practices that will benefit apple quality and productivity, as well as pollinator conservation.","PeriodicalId":252240,"journal":{"name":"Bhutan Journal of Natural Resources and Development","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115324847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Physical and Chemical Properties of Natural Salt Licks and Determination of Animal Presence 天然盐舔的理化性质分析及动物存在的测定

Bhutan Journal of Natural Resources and Development Pub Date : 2022-12-30 DOI: 10.17102/cnr.2022.77

Wangdi, Bhagat Suberi, Wangchuk Blon, Nima Yoezer, Sonam Yontoen, Ugyen Wangmo, Sonam Tshewang

{"title":"Analysis of Physical and Chemical Properties of Natural Salt Licks and Determination of Animal Presence","authors":"Wangdi, Bhagat Suberi, Wangchuk Blon, Nima Yoezer, Sonam Yontoen, Ugyen Wangmo, Sonam Tshewang","doi":"10.17102/cnr.2022.77","DOIUrl":"https://doi.org/10.17102/cnr.2022.77","url":null,"abstract":"Natural salt licks are deposits of salt that are found in the wild. They can have a variety of physical and chemical properties depending on their location and minerals that they contain. Some common physical properties of natural salt licks include their size, shape, color, and texture. This study was conducted to analyze physical and chemical properties of natural salt licks and determine presence of animals on and around the natural salt lick sites. Soil samples from 10 lick sites were collected and analyzed. A total of 10 Reconyx cameras were deployed across 10 lick sites for documentation of wild animals. Most lick areas were found to be sandy, clayey, and silty in texture with high pH (mean = 7.94, SD = 1.05) and electrical conductivity (mean = 7.24, SD = 0.98). Chemical analysis indicated that the natural salt licks had higher concentrations (mg/100g) of sodium, potassium, magnesium and calcium. The total sampling effort of 300 camera trap days yielded 289 independent events in 30 days covering elevation ranging from 1000 to 3000 metre above sea level. The most commonly photo-graphed species were barking deer, Assamese macaque and Himalayan serow.","PeriodicalId":252240,"journal":{"name":"Bhutan Journal of Natural Resources and Development","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116863005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Camera Trap Evidence of Polymorphic Asiatic Golden Cat (Catopuma temminckii) in Trashigang Forest Division, Eastern Bhutan 不丹东部Trashigang森林区多态亚洲金猫(Catopuma temminckii)的相机陷阱证据

Bhutan Journal of Natural Resources and Development Pub Date : 2022-06-27 DOI: 10.17102/cnr.2022.73

L. Norbu, Bal Krishna Koirala, Ugyen Dechen, T. Dorji, Dawa Tshering, Pasang Dorji, Lekey Dorji, Ugyen Phuntsho, U. Lhendup, S. Tobgay, Karma Sherub

引用次数: 1

Sweet potato varieties to diversify cultivars in Bhutan 甘薯品种使不丹的品种多样化

Bhutan Journal of Natural Resources and Development Pub Date : 2022-06-27 DOI: 10.17102/cnr.2022.69

Duptho Wangmo, U. Dorji, Tshering Dema, T. Dorji

{"title":"Sweet potato varieties to diversify cultivars in Bhutan","authors":"Duptho Wangmo, U. Dorji, Tshering Dema, T. Dorji","doi":"10.17102/cnr.2022.69","DOIUrl":"https://doi.org/10.17102/cnr.2022.69","url":null,"abstract":"Sweet potato (Ipomea batatas (L.) Lam) is an important root crop grown in the world. It provides carbohydrates, proteins, vitamins, fibre and essential minerals. With limited varieties available, and the crop being undocumented thus far, sweet potato production in Bhutan is insignificant and has not gained scope in agricultural food systems. For nutrient and crop diversification, three improved varieties from Japan, and a local variety as a check were evaluated under three different agro-ecological zones to ascertain their performance in terms of yield and other yield attributes. The experiment was laid out using Randomized Complete Block Design with four treatments each with three replications. There was no significant difference in yields between the varieties. Nonetheless, it was observed that orange flesh variety (Bajo kewa ngam II) outyielded (13.8t/ac) all other experimented varieties across all experimental sites. The variety orange flesh (Bajo kewa ngam II) followed by Beni Azumi (Bajo kewa ngam I) and Gorojima were the most preferred variety based on their yield potential, pests and diseases tolerance, organoleptic test (taste, texture and colour) and yield attributes. All the three varieties showed good yield stability.","PeriodicalId":252240,"journal":{"name":"Bhutan Journal of Natural Resources and Development","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121968365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linking Smallholder Farmers and School through Contract Farming in Gasa, Bhutan 不丹加萨通过合同农业将小农与学校联系起来

Bhutan Journal of Natural Resources and Development Pub Date : 2022-06-27 DOI: 10.17102/cnr.2022.67

Tshering Dema, Tashi Dendup

引用次数: 0

Exploring Solar Energy Potential using Solar Radiation GIS Toolset - A Case of College of Natural Resources, Lobesa, Punakha 利用太阳辐射GIS工具集探索太阳能潜力——以普纳卡州Lobesa自然资源学院为例

Bhutan Journal of Natural Resources and Development Pub Date : 2022-06-27 DOI: 10.17102/cnr.2022.74

Ugyen Thinley

引用次数: 0

Political Economy of Resource Economics: Unlocking the Policy Debate on Accelerated Hydropower Future in Bhutan 资源经济学的政治经济学:开启不丹加速水电未来的政策辩论

Bhutan Journal of Natural Resources and Development Pub Date : 2022-06-27 DOI: 10.17102/cnr.2022.70

Jamba Tobden

{"title":"Political Economy of Resource Economics: Unlocking the Policy Debate on Accelerated Hydropower Future in Bhutan","authors":"Jamba Tobden","doi":"10.17102/cnr.2022.70","DOIUrl":"https://doi.org/10.17102/cnr.2022.70","url":null,"abstract":"\u0000\u0000\u0000Bhutan is endowed with abundant hydropower potential and harnessing it has assumed national strategic importance as it is the backbone of Bhutan’s economy. Given the importance of hydropower, the Sustainable Hydropower Development Policy was adopted in 2008 to accelerate hydropower development and achieve economic self reliance. However, the acceleration generated a lot of controversy undermining the confidence of the Bhutanese people from all fronts, such as anticipated lower returns to investment, unstable future markets, threats from climate change, cost overrun, and delayed completion of projects. These are the emerging policy discourses among the Bhutanese bureaucrats, politicians, policy analysts, researchers, and independent thinkers concerning the hydropower future. However, a lot of what is discussed and published often comes in the form of general commentaries, media interviews, conference presentations, and official policy documents. A limited number of research papers either publish or unpublished comes from the graduate students’ thesis which are based on data and documents available in the public domain. Correspondingly, this paper engages in implementing this significant agenda with scientific enquiry on Bhutan’s investment in hydropower projects and its sustainability. Employing transdisciplinary research methodology, this paper debates why Bhutan needs to continue investing in accelerated hydropower development.\u0000\u0000\u0000","PeriodicalId":252240,"journal":{"name":"Bhutan Journal of Natural Resources and Development","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126680865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preliminary inventory of native natural enemies of the new pest; Fall armyworm (Spodoptera frugiperda) 新害虫本地天敌初步清查;秋粘虫(夜蛾目)

Bhutan Journal of Natural Resources and Development Pub Date : 2022-06-27 DOI: 10.17102/cnr.2022.71

Ugyen Dorji, Dorji Khando, Chimi Kinley, T. Jamtsho

引用次数: 0