• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.1
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• pp.101-116
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• 2019

Technology-based start-up is important in that it encourages innovation, facilitates the development of new products and services, and contributes to job creation. Technology-based start-up activates entrepreneurship when appropriate support is provided within the ecosystem. Thus, understanding the technology-based start-up ecosystem is crucial. The purpose of this study is as follows. First, in Herrmann et al.'s(2015) study, we compare and analyze the ecosystem of each country by selecting representative regions such as Silicon Valley, Tel Aviv, London and Singapore which have the highest ranking in the start-up ecosystem. Second, we try to deeply understand the start-up ecosystem based on in-depth interviews with various stakeholders such as VC investors, start-ups, support organizations, and professors related to the Korean start-up ecosystem. Finally, based on the results of the study, we suggest development and activation of Korean technology-based start-up ecosystem. As a result, the Seoul start-up ecosystem showed a positive evaluation of government support compared to other advanced countries. In addition, it was confirmed that the ratio of tele-work and start-up company working experience of employees was higher than other countries. On the other hand, in Seoul, It was confirmed that overseas market performance, human resource diversity, attracting investment, hiring technological engineers, and the ratio of female entrepreneurs were lower than those of overseas advanced countries. In addition, according to the results of the interview analysis, Seoul was able to find that start-up ecosystems such as individual angel investors, accelerators, support institution, and media are developing thanks to the government's market-oriented policy support. However, in order for this development to continue, it is necessary to improve the continuous investment system, expansion of diversity, investment return system, and accessibility to the global market. A discussion on this issue is presented.

• Korean journal of applied entomology
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• v.60 no.1
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• pp.49-61
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• 2021

Integrated mite management provided a basic direction to early the fruit tree IPM. The early IPM concept was based on incorporation of the biological control for mite pests with the existing chemical control compatibly. Since then, the hypotheses and mechanisms of the interaction between species diversity and pest population dynamics have provided a broader understanding of mite-centered pest management in fruit tree ecosystems. Based on the principle of the ecosystem, biological control and pest management through habitat modification or manipulation are developing to the concept of agro-ecological engineering. In particular, the natural enemy diversity is dynamically changed according to the different cultivation environment in the management of mite pests, and the species composition of phytophagous mites is also changed by the environment for orchard management. This paper reviews the biological control of mites, which was the basis of apple IPM, and also re-examines the topics of species diversity and pest management, predacious mite diversity in relation to mite control and the change of species composition of mite pests in the sight of ecological engineering. Finally, we suggest a strategy for biological control of spider mites in apple orchards in Korea.

• Korean Journal of Environment and Ecology
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• v.25 no.2
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• pp.145-155
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• 2011

We surveyed diversity, distribution and diversity change of mammalian species in forests of the Nature Environment Research Park (Survey Area I; reservoir and surrounding forests, II; human habitat and surrounding forests and III; mountain forests) in Gangwon Province from 2004 to 2008. During our study, endangered species like Peromys volans, Lutra lutra and Prionailurus bengalensis were present in the surveyed areas. Diversity of mammalian species tends to be a little higher in the Survey Area I and III than the Survey Area II. Annual species diversity was a little higher in 2006, and then there was a little reduction from 2007. However, there was higher reduction in the number of individuals from 2007. Therefore, our results indicate that specific measures are needed for preservation of mammalian habitats to maintain the species diversity and the number of mammalian individuals.

• Journal of Forest and Environmental Science
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• v.38 no.2
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• pp.75-89
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• 2022

The negative impact of monoculture rubber plantations on biodiversity and associated ecological processes/ecosystem services has led to suggestions on the use of integrated land use systems for rubber cultivation and production in order to ensure environmental sustainability. However, there is paucity of information on the effect of such integrated land use systems on the diversity and abundance of the rubber plantation undergrowth. We evaluated and compared undergrowth plant species composition, richness, abundance, diversity and interaction, in three integrated systems (Rubber-Strelitzia reginae Integrated System - RSrIS, Rubber-Podocarpus nagi Integrated System - RPnIS & Naturally Managed Rubber Plantation - NMRP) with three Rubber Monoculture Plantations (RMP₁, RMP₂ & RMP₃) adjacent to the integrated systems, respectively, at the Investigation and Experiment Station of Tropical Crops, Danzhou, Hainan, China. Undergrowth species density was higher in the rubber monocultures than in the integrated systems except in RSrIS. Species richness and diversity were also higher in the monocultures except in NMRP. Species similarity/interaction between the monocultures and the integrated systems was highest between RMP₃ and NMRP. The NRMP proved to be the best model of natural rubber integrated system for the conservation of undergrowth species richness, diversity and interspecific interaction. However, the conservation of undergrowth species in other forms of integrated natural systems can be enhanced by considering the ecology of species to be integrated in terms of their growth characteristics, competitive nature, and ability to grow in association with other species.

• Journal of Korean Society of Rural Planning
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• v.13 no.3
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• pp.61-72
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• 2007

Natural resource of the island and coastal regions is one of the most important element of ecological network system in Korea. Currently, there is trend that natural and biological resources such as fishing and tidal wetland have been used to local economic activation in island and coastal regions. According to the 5-days work in a week, island and coastal regions become important amenity resource of citizen's recreation area. Korea is peninsula surrounded by maritime. Especially, South and West Sea surrounded by many islands and tidal flat wetlands are emerging marine ecosystem and seascape in the world. Natural resource is limited, so we have to sustain those resource to current tourism. In this study, I would like to suggest that importance of cultural resource as well as natural resource for 'eco-cultural tourism' in order to keep both biological diversity and cultural diversity as amenity resource for future island economic activation in Korea.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.4 no.2
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• pp.26-35
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• 2001

We are, now in the 21st century, that environmental preservation and the campaign for bio-diversity protection are very important issues the government must deal with as nation's main policy. To make road and building construction, housing land service, construction of golf fields, and various development works, we have made artificial topographical alterations and as a result, the cut-slop has been increased. However, without the proper study and clear planning, revegetation for the stability of the cut-slop has worked out. These efforts now are causing derangement of an ecosystem and spoiling the nature without considering for ecological adaptation. Therefore, we are going to find out the Revegetation Method to Cut-Slopes considering both the ecological adaptation and harmony with the nature.

• Hwankyungkyoyuk
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• v.18 no.3 s.28
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• pp.33-44
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• 2005

This study aims to explore the possibility of using the urban rooftop biotope as a place for environmental education, focusing on 'Jageun-Nuri' Rooftop Biotope of UNESCO House in Seoul, which was established in April 2003. To verify this possibility, both the monitoring of change in the landscapes and bio-diversity of the biotope and a questionnaire survey on users' awareness were undertaken. As a result of the monitoring, diverse changes in landscape and an increase of bio-diversity necessary for environmental education were observed. The results of the awareness survey recognized that users were satisfied with the landscapes of the biotope and their concerns about environment and ecosystem increased due to their visits. Users also thought the biotope could be an appropriate place for environmental education.

• Animal Systematics, Evolution and Diversity
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• v.14 no.4
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• pp.391-413
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• 1998

Three notodelphyid copepods, Doropygus curvipes Gotto, Notodelphys agilis villosus Ooishi and Bonnierilla curvicaudata Ooishi are redscribed, based on the specimens taken from the solitary ascidians in Korea. Accordingly, Korean cope associated with ascidians now includes 11 described species.

• Animal Systematics, Evolution and Diversity
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• v.22 no.1
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• pp.37-49
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• 2006

Two species of the family Dexaminidae, Paradexamine fraudatrix Tzvetkova, 1976 and Paradexamine gigas Hirayama, 1984 are newly recorded from the Korean fauna. They are redescribed and figured in detail. The genus Paradexamine is reported from Korea for the first time.

• Animal Systematics, Evolution and Diversity
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• v.22 no.1
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• pp.91-99
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• 2006

The Korean gammaridean amphipods were collected from the coastal shallow waters of Korea during 1998-2001. Among them, Urothoe grimaldii japonica Hirayama is new to Korean fauna. Redescription of this species was made in detail with figures.