Kim M.S.,Research Institute for Gangwon |
Jun M.-S.,Research Institute for Gangwon |
Kim C.A.,National Institute of Biological Resources |
Yoon J.,National Institute of Biological Resources |
And 2 more authors.
Algae | Year: 2015
The genus of leafy green algae, Prasiola Meneghini, includes marine, terrestrial, and freshwater species. A total of 11 species and one variety have been identified in China, Korea, and Japan. In Korea, Prasiola formosana var. coreana has been reported in Muncheon, North Korea, while a different type of Prasiola species has been reported in South Korea. The South Korean species has been found growing along a small stream originating from Chodanggul Cave, a limestone cave in Samcheok, Gangwon Province. Here, we revised the morphological characteristics of the South Korean Prasiola species and analyzed plastid rbcL, psaB, and tufA genes to clarify its identity. Although the external and anatomical mor phologies varied among individuals, our results were very similar to previous reports. Plastid three genes sequences of the South Korean specimens were identical to those of P. japonica collected from Japan as well as to published sequences of P yunnanica from China. A short rbcL-3P sequence (196 bp) from P. formosana var. coreana, which was identified in the type specimen, was also identical to a sequence from P. japonica. These Prasiola species and variety from Korea, Japan, and China are all distributed in areas characterized by limestone bedrock. Based on morphological, phylogenetic, and distributional features, the South Korean Prasiola species is regarded herein as P. japonica. Here, we also propose to synonymize P. formosana var. coreana and P. yunnanica with P. japonica. © 2015 The Korean Society of Phycology.
Park B.-W.,Research Institute for Gangwon |
Lee K.C.,Sungkyunkwan University
Computers in Human Behavior | Year: 2011
The aims of this paper are to: (1) modify the theory of consumption values in order to investigate online game users' perceived value of purchasable game items, and (2) develop a new construct - the "integrated value of purchasing game items" - based on the modified theory of consumption values. We found that the enjoyment, character competency, visual authority, and monetary values are appropriate for describing how online game users perceive the value of game items. Utilizing second order analysis, the "integrated value of purchasing game items" was developed. To show the validity of the new construct, we developed a research model and tested it using the results of 327 valid questionnaires. Results revealed that the new construct is statistically significant in affecting users' intention to purchase game items. © 2011 Elsevier Ltd. All rights reserved.
Seo B.,University of Bayreuth |
Bogner C.,University of Bayreuth |
Poppenborg P.,University of Bayreuth |
Martin E.,University of Würzburg |
And 8 more authors.
Earth System Science Data | Year: 2014
Detailed data on land use and land cover constitute important information for Earth system models, environmental monitoring and ecosystem services research. Global land cover products are evolving rapidly; however, there is still a lack of information particularly for heterogeneous agricultural landscapes. We censused land use and land cover field by field in the agricultural mosaic catchment Haean in South Korea. We recorded the land cover types with additional information on agricultural practice. In this paper we introduce the data, their collection and the post-processing protocol. Furthermore, because it is important to quantitatively evaluate available land use and land cover products, we compared our data with the MODIS Land Cover Type product (MCD12Q1). During the studied period, a large portion of dry fields was converted to perennial crops. Compared to our data, the forested area was underrepresented and the agricultural area overrepresented in MCD12Q1. In addition, linear landscape elements such as waterbodies were missing in the MODIS product due to its coarse spatial resolution. The data presented here can be useful for earth science and ecosystem services research. The data are available at the public repository Pangaea (doi:10.1594/PANGAEA.823677). © Author(s) 2014. CC Attribution 3.0 License.