• KIEAE Journal
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• v.1 no.2
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• pp.55-62
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• 2001

This is a study on how to create an ecological arboretum that would promote biodiversity by creating wild animal habitats in terms of using large-scale remnants in urban areas and that would serve as a field for environment education based on its locational feature of being an urban area and its accessibility. This study is significant in a sense that this is the first arboretum to be created in urban area. However, it has a couple of limitations and they are as follows. First, since an arboretum creation plan is a mid/long-term plan, it is difficult to verify the biodiversity promotion effect of the application of habitats and creation techniques. Second, as the space was created by considering ecological features and utilizing natural prototype, the diversity of forest trees in here is lower than that of a traditional arboretum.

• Korean Journal of Veterinary Research
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• v.32 no.2
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• pp.239-243
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• 1992

In the present experiment, the blue-green algae, the principal food of the vector snail of Fasciola hepatica were cultured. Mud from good natural habitats was sterilized, made slopes, inoculated with algae from the habitats and maintained in a saturated atmosphere. Under the fluorescent-mercury lamp(100W) at about $20^{\circ}C$ the algal growth was optimal, taking 8 days to fully grow and to be ready for feeding the snails. The algae collected from the habitats and cultured in the laboratory were mainly green.

• Journal of Environmental Impact Assessment
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• v.16 no.4
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• pp.285-300
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• 2007

The purpose of this study was to ascertain the ecological state and problems of eco-bridges on Korean roads. The study was conducted from March to April 2007 by checking ecological factors and wildlife around the eco-bridges and habitats. 8 representative eco-bridges were selected by their bridge shape and condition of location. After field survey, we analyzed ideal trails for wildlife using field data, digital topology maps, satellite images, and land use map. In addition to trail analysis, we identified the propriety of the eco-bridges through Population Viability Analysis. Because of unsuitable location and management, we found that most of the bridges are not proper for wildlife dispersal. Moreover, in some habitats, we could expect that some local populations might be extinct without appropriate treatments.

• Ocean and Polar Research
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• v.24 no.1
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• pp.79-86
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• 2002

It was found that 14 coastal habitats in South Korea have comparetively natural vegetation. The habitats were classified into three types - intertidal flats, sand dunes, and estuaries. There were four intertidal flats, five sand dunes and five estuaries. Except for Cynodon dactylon and Tetragonia tetragonoides, all of the main halophytes and sand dune plants were found in the habitats. These two species were mainly distributed on the southern coast. This study identified coastal vegetation, such as pure stands of Suaeda japonica on intertidal flats, mixed halophyte communities around the high-water mark, pure stands of Vitex rotundifolia on stable sand dunes, mixed communities dominated by Carex kobomugi on unstable sand dunes, and pure stands of Phragmites communis in estuaries. The types of coastal vegetation may depend on sediment types, the inundation time of seawater and the stability of sediments.

• IMMUNE NETWORK
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• v.16 no.3
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• pp.195-199
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• 2016

Fecal samples obtained from wild boar habitats are useful for the surveillance of diseases in wild boar populations; however, it is difficult to determine the species of origin of feces collected in natural habitats. In this study, a fecal IgA ELISA was evaluated as a method for identifying the porcine species from fecal samples. Both domestic pigs (Sus scrofa domestica) and wild boars (Sus scrofa coreanus) showed significantly higher levels of fecal IgA than other animal species. Additionally, age dependent changes in the level of Ig A in wild boars and domestic pigs were identified; Titers of Ig A were highest in suckling period and lowest in weanling period.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.35 no.2
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• pp.176-178
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• 1990

The essential fatty acid composition of evening primrose seed at 3 natural habitats in Korea was investigated by means of capillary column gas-chromatography. The content of essential fatty acid components was palmitic acid 6.19-6.73%. stearic acid 1.84-1. 99%, oleic acid 6.73-9.10%. linoleic acid 74.41-75.53%. Particularly. gamma-linolenic acid (GLA) which is a precursor of prostaglandin was 9.14% in Cheong-ju. 9.32% in Che-cheon and 8.31% in An-dong. Based on the GLA content evening primroses in Korean natural habitats seem to be very promising and useful for GLA production.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.32-32
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• 2019

The aim of this study was to provide basic guidelines for conservation and management of endangered plants in the national parks of Korea. Iris dichotoma Pall. (Iridaceae), which is a popular garden plant, is considered a second-class endangered species by Korean government and it is listed as a EN (Endangered) species in Red Data Book of Korea. We analyzed ecological conditions of I. dichotoma habitats based on vegetation properties and soil characteristics. This species which is known to inhabit in grassland adjacent to the ocean of lowlands slope and its population was located at an elevation of 8 m to 11 m. In the study sites, the mean of soil organic matter, total nitrogen and soil pH were 6.16%, 0.234% and 5.39 respectively. Additionally, the genetic variation and structure of three populations were assessed using ISSR (Inter Simple Sequence Repeat) markers. The genetic diversity of I. dichotoma (P = 59.46%, H = 0.206, S = 0.310) at the species level was relatively high. Analysis of molecular variance (AMOVA) showed 82.1% of the total genetic diversity was occurred in within populations and 17.9% variation among populations. Lastly, we developed predicted distribution model based on climate and topographic factors by applying SDMs (Species Distribution Models). Consequently, current status of I. dichotoma habitats is limited with natural factors such as the increase of the coverage rate of the herbs due to ecological succession. Therefore, it is essential to establish in situ and ex situ conservation strategies for protecting natural habitats and to require exploring potential and alternative habitats for reintroduction.

• Korean Journal of Environmental Biology
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• v.17 no.4
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• pp.389-400
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• 1999

Habitat preferences of benthic macroinvertebrates were studied according to the different substrate composition. Although it was hard to determine the common dwellers in the habitats with cobbles and pebbles, some taxa such as Ephemera orientalis, Davidius lunatus, Tipula KUb, Isonychica japonica and Tabanus amaenus etc. occurred preferably in the habitats with gravel/sand. In all the sampling stations, the numbers of species collected in the habitats with gravel/sand were always remarkably smaller as compared with the habitats with cobbles and pebbles.

• Journal of Korean Society of Rural Planning
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• v.15 no.2
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• pp.19-26
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• 2009

The purpose of this study is to build Island biogeography in the basic concept of landscape ecology in South Korea by draw relationship between the species side of quantitative habitats and forest area surveyed in the national database based on investigation of the 2nd natural environment. In addition, try to present criterion of habitats character category after understanding habitats character of emergence area side of quality habitats based on the type of formatting. Species and forest area relationship analyzed using correlation analysis and simple regression analysis. Also habitat character limited composition ratio of neighboring land cover and analyzed using hierarchical cluster analysis to classify type of habitat. As a result, we found that forest area is correlated with number of species, forests which is bigger than 100ha are more important of increase in species' population. And according to land cover composition ratio, bird's classified types of forest inner species, forest edge species, forest outer species and mammal's classified types of forest inner species, forest general species, forest edge species. We suggest that study of species-forest area relationship and emergence habitat character be used as some management plans of species' conservation, protection and restoration.

• Korean Journal of Environmental Biology
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• v.35 no.4
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• pp.545-548
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• 2017

Nannophya pygmaea (commonly known as the scarlet dwarf dragonfly) was designated as an endangered species, level II, by the Ministry of Environment of Korea in 1994; it has been used as a flagship species for the protection and preservation of wetlands. Over 25 sites in Korea have been identified as the habitat of Nannophya pygmaea. However, most of these habitats have proven to be unstable, and there have been subsequent changes in the assemblage structure and organization. Most habitats changed to become grasslands or plain ground, and now only five habitats remain. Although efforts have been made to protect the Nannophya pygmaea as an endangered species, their habitat loss has increased, caused by natural succession and drought. Therefore, we need to make stronger protections in the preservation manual of level II endangered species, particularly Nannophya pygmaea, and its native habitats in Korea.