Natural Resources Management and Biological Sciences最新文献_第2页

The Contribution of Research in Combating Wildlife Poaching in Tanzania: Review of Existing Literature 坦桑尼亚打击野生动物偷猎研究的贡献:现有文献综述

Natural Resources Management and Biological Sciences Pub Date : 2019-11-11 DOI: 10.5772/intechopen.89909

J. Kideghesho

引用次数: 2

Taxonomical Keys for Morphological Identification of Coral-Associated Polychaetes from Great Nicobar Islands 大尼科巴群岛珊瑚相关多毛类形态鉴定的分类关键字

Natural Resources Management and Biological Sciences Pub Date : 2019-11-08 DOI: 10.5772/intechopen.88668

V. Sekar, R. Rajasekaran, S. Balakrishnan, R. Raguraman

{"title":"Taxonomical Keys for Morphological Identification of Coral-Associated Polychaetes from Great Nicobar Islands","authors":"V. Sekar, R. Rajasekaran, S. Balakrishnan, R. Raguraman","doi":"10.5772/intechopen.88668","DOIUrl":"https://doi.org/10.5772/intechopen.88668","url":null,"abstract":"The present study illustrates the insufficient taxonomy records and highlights the use of microscopic diagnostic tool in polychaete taxonomy. It leads to a better understanding of coral-associated polychaete taxonomy in Great Nicobar Islands, India. A total of 24 species under 14 genera, 7 orders, and 11 families were identified, in spite of 3 species of Phyllocidae, 8 species of Nereidae, 5 species of Eunicidae, 2 species of Spionidae, and 1 species of Opheliidae, Sabellariidae, Terebellidae, Polynoidae, Amphinomidae, and Sabellidae. The current status of taxonomic information varies greatly among taxa and among geographic areas within taxa. The problems encountered included nomenclature, diagnoses, and determination of taxonomic relationships. We provide examples of a variety of these problems. Each species has distinct features of the particular families, and taxonomic section to assist the polychaete identification that is necessary to assess the biodiversity and taxonomy at any level. This chapter considers the importance of monitoring biological diversity, current morphological taxonomy of polychaetes and describes the approach developed for protected areas in Great Nicobar Islands.","PeriodicalId":340662,"journal":{"name":"Natural Resources Management and Biological Sciences","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126635358","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

Challenges of Conservation and Sustainable Management of African Rosewood (Pterocarpuserinaceus) in West Africa 西非非洲红木的保护和可持续管理面临的挑战

Natural Resources Management and Biological Sciences Pub Date : 2019-08-30 DOI: 10.5772/intechopen.88796

Adjonou Kossi, Houêtchégnon Towanou, Rabiou Habou, Segla Kossi Novinyo, Abotsi Komla Elikplim, Johnson Benziwa Nathalie, Alaba Pyoabalo, Ouinsavi Christine A.I. Nougbodé, Quashie Akossiwoa Marie-Luce, Kokutse Adzo Dzifa, Mahamane Ali, Kokou Kouami

{"title":"Challenges of Conservation and Sustainable Management of African Rosewood (Pterocarpuserinaceus) in West Africa","authors":"Adjonou Kossi, Houêtchégnon Towanou, Rabiou Habou, Segla Kossi Novinyo, Abotsi Komla Elikplim, Johnson Benziwa Nathalie, Alaba Pyoabalo, Ouinsavi Christine A.I. Nougbodé, Quashie Akossiwoa Marie-Luce, Kokutse Adzo Dzifa, Mahamane Ali, Kokou Kouami","doi":"10.5772/intechopen.88796","DOIUrl":"https://doi.org/10.5772/intechopen.88796","url":null,"abstract":"Pterocarpus erinaceus is an endemic and threatened plant species in arid and semiarid zones of West Africa and is highly exploited for timber, animal feeding, and various medicinal uses. The species is currently native to the Guinean forest-savannah mosaic ecoregion and reported from Senegal to Cameroon. The values of the main characteristics of the P. erinaceus forest stands (density, average diameter, average height and average stem height) vary significantly (P < 10−3) from the Guinean zone to the Sahelian zone. It has high technological performance and can be classified as heavy and very hard wood with a density of the order of 0.80 ± 0.07 g/cm3 and an average hardness of 12 ± 3.7 g/cm3. The species is the subject of large-scale international traffic between West Africa and Asia, which is by far the greatest threat to the species. The various uses induce repeated mutilation and increase pressures on the species resulting in a significant reduction in its natural populations. In response to this situation, measures are proposed, including large-scale plant production strategies, the definition of minimum felling diameters, policy measures, etc., to meet the restoration needs of natural stands of P. erinaceus and the fight against climate change.","PeriodicalId":340662,"journal":{"name":"Natural Resources Management and Biological Sciences","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128707606","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: 6

Physical Vulnerabilities from Wildfires: Flames, Floods, and Debris Flows 野火的物理脆弱性:火焰、洪水和泥石流

Natural Resources Management and Biological Sciences Pub Date : 2019-06-25 DOI: 10.5772/INTECHOPEN.87203

D. Neary, J. Leonard

{"title":"Physical Vulnerabilities from Wildfires: Flames, Floods, and Debris Flows","authors":"D. Neary, J. Leonard","doi":"10.5772/INTECHOPEN.87203","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.87203","url":null,"abstract":"Humans live in or adjacent to wildland ecosystems that burn periodically and are part of nearly all ecosystems that are in the pyrosphere. There are many hazards posed by wildfire and certain consequences of living in these ecosystems. Most are associated with wildfire, but the increased use of prescribed fire is an issue because of associated risks with human attempts to manage ecological goals. The hazards posed by wildfire involve cultural and economic loss, social disruption, infrastructure damage, human injury and mortality, damage to natural resources, and deterioration in air quality. The economic and human health and safety costs are on the rise due to increasing wildland-urban interface problems and extreme wildfire behavior brought on by climate change. In the past, urban fires have been the greatest threat to human health and safety killing over 100,000 people. World ecosystems have been modified extensively by fire. We live on a “fire planet.” With larger human populations and a changing, drying climate, the impact of fire on humans and the hazards faced by our natural and developed world will continue to increase. The increase in wildfire hazards in the twenty-first century will require higher levels of training, increased investments in wildfire personnel and infrastructure, greater wildfire awareness, and improved planning to reduce fire impacts.","PeriodicalId":340662,"journal":{"name":"Natural Resources Management and Biological Sciences","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121736517","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: 8