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Kim H.G.,Seoul National University | Lee E.-J.,Daejeon Development Institute | Park C.,University of Seoul | Lee K.S.,Korea Institute of Environmental Ecology | And 3 more authors.
Sustainability (Switzerland) | Year: 2016

Cheorwon-gun is an important wintering area for the red-crowned crane (Grus japonensis). Although eco-tourism has been recently proposed as a means to stimulate the local economy, it may have adverse effects on the crane. We believe a science-based conservation plan is needed to mitigate these negative effects. To this end, our study had three objectives: (1) to analyze the red-crowned crane habitat and its suitability in Cheorwon-gun, using field surveys and habitat modeling; (2) to check the feasibility of alternative habitat patches across demilitarized zones (DMZs); and (3) to propose a conceptual diagram that minimizes habitat loss during development activities. We aim to quantify habitat suitability, the farmland area needed to support existing crane populations in wintertime, disturbance caused by human activities, and vehicular spatial patterns. These data could be used in spatial planning. The framework of this study and the process of making a conceptual diagram could be applied to other areas where there is a conflict between development and habitat conservation. © 2016 by the authors.

Jin S.D.,Natural History Research Team | Hoque Md.R.,Chungnam National University | Seo D.W.,Chungnam National University | Paek W.K.,Natural History Research Team | And 3 more authors.
Molecular Biology Reports | Year: 2014

Recently, the consumption of duck meat has increased; therefore, we need to reveal the origin and gene flow of domestic ducks in Korea. In order to discriminate between duck species, d-loop variations in mitochondrial DNA (mtDNA) have been investigated. In this study, 45 individuals from seven species of wild and domestic ducks in Korea were considered for the d-loop region sequences. With the participation of all the sequences, a phylogenetic neighbor-joining tree was constructed to differentiate between the wild and domestic duck species. In consideration of these sequences, a total 66 haplotypes were obtained (indel included) with an average haplotype of 76.9 %, and a haplotype and nucleotide diversity of 0.91 and 0.01, respectively. Also, an estimation of the sequence divergence within and between species was measured in 0.045 and 0.013-0.095, respectively. Meanwhile, the lowest distances of 0.024, 0.013 and 0.018 were observed in three species, including the Mallard, Spot-billed and domestic duck, respectively, which have relatively close genetic relationships. All haplotypes were used for the median-joining network analysis to differentiate all duck species, while three duck species were closely related. Moreover, 26 indel polymorphisms were identified which could be used for the discrimination among the duck species. Based on our results, duck species were effectively discriminated in a d-loop region, which could then be used for an appropriate genetic conservation program for the wild duck and domestic duck breeds in Korea. © 2014 Springer Science+Business Media.

Jin S.-D.,Chungnam National University | Rashedul Hoque M.,Chungnam National University | Seo D.-W.,Chungnam National University | Kim I.-K.,Korea Institute of Environmental Ecology | And 3 more authors.
Journal of Poultry Science | Year: 2012

Korea is an important geographical location for wintering dabbling ducks. In order to investigate their relationships, 92 ducks from ten breeds were sampled from nine different geographical areas in Korea. Of these, 38 samples are represented as Mallard (Anas platyrhynchos), Spot-billed (Anas poecilorhyncha zonorhyncha) and domestic (Anas platyrhynchos domesticus) ducks. They are very closely related to commercial duck breeds. The partial (746 and 749 bp) mitochondrial DNA (mtDNA) COI (Cytochrome Oxidase I) gene sequences were obtained and 126 SNPs were identified, which belong to 23 haplotypes. Eighty five Anas and ten Aix genus have been used for phylogenetic analysis. Based on the neighbor-joining (NJ) method, duck species used in this study can be well differentiated, except for the three duck breeds, Mallard, Spot-billed and domestic ducks, where most of the individuals belong to haplotype 12. The highest K2P distance, 0.31, was observed in Spot-billed ducks, with a range of 0.07-10.96 between the species. However, there was no correlation between geographic distance (km) and K2P distance (%) between the species. Based on our results, duck species can be discriminated with COI sequences, except for the three closely related breeds, and this can be effectively used for an appropriate conservation program for the wild duck breeds in Korea. © 2012, Japan Poultry Science Association.

Kang J.-H.,National Research Institute of Cultural Heritage | Kim I.K.,Korea Institute of Environmental Ecology | Lee K.-S.,Korea Institute of Environmental Ecology | Lee H.,Korea Institute of Environmental Ecology | Rhim S.-J.,Chung - Ang University
Forest Science and Technology | Year: 2015

This study was conducted to determine the distribution and breeding status of the black-faced spoonbill (Platalea minor) for conservation and management purposes in South Korea. Breeding and stopover sites of the black-faced spoonbill were mainly in uninhibited islets off the west coast of the Korean Peninsula; wintering sites were observed on Jeju Island. Between April and July 2013, we observed 638 black-faced spoonbill nests along the west coast of the Korean Peninsula. Most of the nests were observed in the Gyeonggi Bay area, on Kujido Islet, Bido Islet, Namdong retaining basin, Youdo Islet, Suhaam Islet, Seomando Islet, and Maedo Islet, which were major breeding sites for these birds. It is essential to understand the distribution, breeding status, ecology, and habitat patterns of the black-faced spoonbill, based on existing data, for the conservation and management of this species. Long-term ecological research on the population dynamics of the black-faced spoonbill is needed to implement a successful conservation strategy. © 2016 Korean Forest Society

Kang J.-H.,National Research Institute of Cultural Heritage | Kang J.-H.,Chung - Ang University | Kim I.K.,Korea Institute of Environmental Ecology | Lee K.,Korea Institute of Environmental Ecology | Rhim S.-J.,Chung - Ang University
Journal of Animal and Veterinary Advances | Year: 2013

This study was conducted to clarity the distribution and breeding status of Chinese egret Egretta eulophotes for conservation and management in South Korea. The known habitat of the birds in South Korea is confined to 10 sites. All the breeding sites are uninhibited offshore islets in the Yellow Sea, South Korea. Major breeding sites are Napdaekiseom, Hwangseodo, Chilsando, Seomando and Mokdo Islets. Most of the nests are located in dense stands of arrow bamboo Pseudosasa japónica and baby brier Rosa multiflora. The vegetation of the offshore islets with breeding sites should be maintained and managed to help the birds breed successfully. Human disturbance by photography and egg collection should be prohibited in breeding islands. An action plan based on long-term ecological research should be prepared to aid the conservation of the birds and their habitats. © Medwell Journals, 2013.

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