• Title/Summary/Keyword: Conservation strategies

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Assessment of Land Cover Changes from Protected Forest Areas of Satchari National Park in Bangladesh and Implications for Conservation

  • Masum, Kazi Mohammad;Hasan, Md. Mehedi
    • Journal of Forest and Environmental Science
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    • v.36 no.3
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    • pp.199-206
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    • 2020
  • Satchari National Park is one of the most biodiverse forest in Bangladesh and home of many endangered flora and fauna. 206 tons of CO2 per hectare is sequestrated in this national park every year which helps to mitigate climate issues. As people living near the area are dependent on this forest, degradation has become a regular phenomenon destroying the forest biodiversity by altering its forest cover. So, it is important to map land cover quickly and accurately for the sustainable management of Satchari National Park. The main objective of this study was to obtain information on land cover change using remote sensing data. Combination of unsupervised NDVI classification and supervised classification using maximum likelihood is followed in this study to find out land cover map. The analysis showed that the land cover is gradually converting from one land use type to another. Dense forest becoming degraded forest or bare land. Although it was slowed down by the establishment of 'National Park' on the study site, forecasting shows that it is not enough to mitigate forest degradation. Legal steps and proper management strategies should be taken to mitigate causes of degradation such as illegal felling.

Effect of Mosaic Vegetation Structure on Pine Seed Predation by Forest Animals in Agricultural Landscape (농촌경관내의 삼림동물에 의한 소나무종자 포식에 미치는 모자이크형 식생구조의 영향)

  • 홍선기;임영득
    • The Korean Journal of Ecology
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    • v.20 no.4
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    • pp.265-274
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    • 1997
  • All landscapes are mosaics of habitat patches of different types. Therefore, there are always edged between habitat patches in a landscape. Forest animal has an important role in vegetation development and maintenance by seed dispersal around forest. Movement of animals depends on the spatially heterogeneous structure and pattern of vegetation landscapes because each animal has special habitats in a landscape. Especially, forast edge with high permeability and prey density is one of the important habitats to the animals. Therefore, understanding the ecological characteristics of the forest edges as a corridor connecting mosaic vegetation patches is necessa교 새 establish the strategies for the nature conservation and sustainable vegetation management. Under this idea, we examined the animal influenced on pine seeds as one of the method of monitoring the animal activity in mosaic vegetation. Man-made mosaic vegetations including open, edge and inner forests were carefully selected in the rural landscape. We carried out predation test on pine seeds during one year. A result was that damages on seed was more significant at forest edge than inner and open forest. Pine seed on seedbeds was mainly attacked by squirrels and mice than birds. Pine seed was damaged by squirrels in different types of vegetation by seasons. Rate of seed predation at forest edge was, in special, higher than that of other sites. According to this results, it is suggested that the relationship between animal behavior and spatial vegetation structure relating to human impact such as the distance from settlement to vegetation appeares to be in the rural vegetation landscape.

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Differences in Advertising Responses and WOM Communication by Consumption Orientation (소비 성향 척도 개발 및 소비성향 집단의 마케팅 커뮤니케이션 반응의 차이)

  • Kim, Seon-Sook
    • Fashion & Textile Research Journal
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    • v.14 no.3
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    • pp.381-389
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    • 2012
  • This study presents a marketing communication strategy from the aspect of new consumption orientation. Consumer preference on ads media, on-line ads media, and WOM usage were examined for new consumption orientation groups. This study was executed in a question survey format. A total of 182 questionnaires were obtained and data were analyzed by PASW 18.0 and AMOS 7. The results were as follows. First, 8 types of consumption orientation factors were revealed; 'impulsive purchase', 'promotion oriented', 'social contribution', 'passive conformity', 'innovative', 'conspicuous', 'rational', and 'environmental conservation'. Then 4 groups were formed, 'Rational & Positive', 'Conspicuous Conforming', 'Positive Social Interested' and 'Low Price Oriented'. Second, communication responses were analyzed through consumption orientation groups. The 'Rational & Positive' group responded positively to every type of advertising media (especially new media). The 'Conspicuous Conforming' and 'Positive Social Interested' groups preferred traditional media such as TV, radio, and magazines; in addition, the 'Low Price Oriented' group liked only online banner ads. For WOM preference, the 'Rational & Positive' and 'Positive Social Interested' group preferred verbal consumer information like WOM. In distribution types, the just 'Positive Social Interested' group revealed a significant result for internet shopping malls. The results from this study will help establish marketing communication strategies based on the features of consumption orientation.

오골계의 기원과 유전적 다양성

  • Lee, Yu-Ju;Jeon, Eol;Jeong, Haeng-Jin;Jeong, U-Yeong;Jang, Byeong-Gwi;Baek, Un-Gi;Choe, Gang-Deok;Lee, Jun-Heon
    • Proceedings of the Korea Society of Poultry Science Conference
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    • 2005.11a
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    • pp.62-63
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    • 2005
  • Korean Ogol Chicken is a natural treasure in Korea and expected to be a valuable genetics resource in the world. As an initial step to investigate the genetic structures of this breed, phylogenetic analysis has been performed using mitochondrial DNA (mtDNA) sequence variations. Total 30 Korean Ogol Chickens were investigated in this study and they were grouped into 4 haplotypes, consisting 11 birds in the largest haplotype. Based on the phylogenetic analysis, chicken breeds were divided into three major groups and Korean Ogol Chicken were appeared all of these three groups indicating their large genetic mtDNA diversity. These results will be used for making breeding and conservation strategies for this breed.

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A Study on the 4-H Camping Leader's Role in USA (미국의 4-H 캠핑지도자의 역할에 대한 고찰)

  • Oh, Hae-Sub
    • Journal of Agricultural Extension & Community Development
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    • v.12 no.1
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    • pp.45-56
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    • 2005
  • The 4-H camping programs in USA have been providing various resources so that members can achieve their physical, intellectual, social and spiritual potential. The camping programs have been carried out members to participate in programs as responsible citizens in their local, national and international communities. One of the key requirements of successful youth camping was the leadership role of leaders with more conscious and systematic for preparing, equipping, and carrying out programs. This paper was intended to explore the goals of 4-H camping and leaders' role in USA, and give implications to Korean outdoor activities. To perform the 4-H camping effectively, the camping leaders need to focus on the following steps: First of all, they need to recognize the specific purposes and missions of participation in the 4-H camping. Secondly, they should make sense of the site-based teaching skills and its application in the field. Thirdly. they should set up the principles of effective camping strategies and abide by the steps in the process of activities. In addition, they should be qualified to handle the risk management skills, research and survey technology, and environment conservation efforts throughout the camping.

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Mitochondrial DNA Diversity of Korean Ogol Chicken

  • Lee, Y.J.;Bhuiyan, M.S.A.;Chung, H.J.;Jung, W.Y.;Choi, K.D.;Jang, B.G.;Paek, W.K.;Jeon, J.T.;Park, C.S.;Lee, J.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.4
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    • pp.477-481
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    • 2007
  • Korean Ogol chicken has been registered as a natural monument in Korea and regarded as a valuable genetic resource for the world. As an initial step to investigate the genetic structures of this breed, phylogenetic analysis and calculation of genetic diversities have been performed using mitochondrial DNA (mtDNA) sequence variations. A total of 31 Korean Ogol chicken was grouped into four haplotypes and the large haplotype was represented in 12 individuals. The unrooted neighbor-joining tree indicates that the Korean Ogol chicken shared three (A to C) major chicken lineages representing the high genetic variability of this breed. These results can be used for making the breeding and conservation strategies for the Korean Ogol chicken.

Using GIS Spatial Analysis to Protect Critical Habitats in the Big Cyprus Watershed, South Florida (GIS 공간분석을 통한 남부 플로리다 Big Cyprus 분수계 보존서식지 보호)

  • Kim, Jin-Ho;Kim, Chang-Ho;Kim, Hyun-Woo
    • Journal of KIBIM
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    • v.7 no.4
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    • pp.31-38
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    • 2017
  • Big Cyprus watershed, which is located in the Southwestern Florida and covers Everglades National Park that has high proportions of endangered species' habitats, plays an important role for the entire Florida ecosystem. Due to the rapid urbanization and high population growth, however, the watershed has been continuously polluted and the current regional watershed plan is not created to accommodate the speed of growth. The purpose of this study is to suggest proper protection policies and strategies for the Big Cyprus watershed by employing the Inverse Distance Weighted interpolation tool in Geographic Information System. The findings show that conservation priorities should be given in the North and South portion of the watershed area, which are proven to be the most important aisle for the habitats in the Big Cyprus. The study concludes with policy suggestions that local environmental planners should concentrate for adopting their new watershed plan in the near future.

Distribution of Vascular Plants and Characteristics of Plant Resources in Yangyang-gun, Gangwon-do (강원도 양양군 일대 관속식물의 분포와 자원특성에 관한 연구)

  • Han, Jong-Won;Kang, Shin-Ho
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.6
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    • pp.18-35
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    • 2009
  • Distribution of vascular plants in Yangyang-gun were investigated 12 times from Apr. to Sept., 2008. In the result of survey, the flora of this area consist of 412 taxa totally; 89 families, 259 genera, 366 species, 5 subspecies, 37 varieties and 4 forms. There were remarkable plants such as 11 taxa of Korean endemic plants, 58 taxa of specific plants which were designated by the Ministry of Environment, 2 taxa of endangered plants of Ministry of Environment, 7 taxa of rare, endangered plants of Korea Forest Service and 28 taxa of afforestation plants and 296 taxa of useful plants. Furthermore, 36 taxa of naturalized plants (8.74%) were also observed in this area. Vegetation of investigated area was conserved well. However, vegetation has been destroyed rapidly due to construction of commercial complex for human recreation such as condominiums and stores. Therefore, it is need to efficient management of the water quality and vegetation by conservation strategies from huge visitors.

Development Strategy for Utilization of ECVAM using the User Survey (사용자 만족도 조사를 통한 국토환경성평가지도 발전방안 연구)

  • Song, Wonkyong;Kim, Eunyoung;Jeon, Seong-Woo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.15 no.4
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    • pp.111-118
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    • 2012
  • The purpose of this study is to work out strategy for utilization of Environmental Conservation Value Assessment Map (ECVAM) using the user survey. It surveyed system users of ECVAM about its recognition and satisfaction. The results of the survey, the ECVAM became more popular and were highly satisfied with updated data. Especially, the study found a relationship between the satisfaction of ECVAM and accuracy, utilization, and convenience of the system. However, the satisfaction has a difference between user groups, a government official and a agent for EIA including researchers. The satisfaction of the agent group was affected by the convenience, the accuracy, and the utilization in order. In the other hand, the satisfaction of the government official group was affected by the utilization, the convenience, the accuracy, and recognition in order. Therefore, we need to adopt different strategies for educations of ECVAM and publicity activities depending on user groups. To increase the satisfaction of ECVAM, we should research not only to attain pinpoint accuracy, but also to suggest the guideline to utilize the map for a government official.

Temporary Access Selection Technology in WIFI Networks

  • Lu, Yang;Tan, Xuezhi;Mo, Yun;Ma, Lin
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.8 no.12
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    • pp.4269-4292
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    • 2014
  • Currently, increasing numbers of access points (AP) are being deployed in enterprise offices, campuses and municipal downtowns for flexible Internet connectivity, but most of these access points are idle or redundant most of the time, which causes significant energy waste. Therefore, with respect to power conservation, applying energy efficient strategies in WIFI networks is strongly advocated. One feasible method is dynamically managing network resources, particularly APs, by powering devices on or off. However, when an AP is powered on, the device is initialized through a long boot time, during which period clients cannot be associated with it; therefore, the network performance would be greatly impacted. In this paper, based on a global view of an entire WLAN, we propose an AP selection technology, known as Temporary Access Selection (TAS). The criterion of TAS is a fusion metric consisting of two evaluation indexes which are based on throughput and battery life, respectively. TAS is both service and clients' preference specific through balancing the data rate, battery life and packet size. TAS also works well independently in traditional WLANs in which no energy efficient strategy is deployed. Moreover, this paper demonstrates the feasibility and performance of TAS through experiments and simulations with Network Simulator version 3 (NS3).