• Asian Journal of Turfgrass Science
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• v.9 no.1
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• pp.81-89
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• 1995

The variations of the soil texture, $SiO_2$ /$Al_2$$O_3$ ratio, buffer action, exchangeable base, ex-changeable hydrogen, and mineral nutrients were investigated to estimate the grade of the soil fertility of the soil derived from the different parent rocks such as the granite in Kwangnung and the basalt in Chejudo. The results investigated were showed as follows : Basalt soils in Chejudo belong to sandy clay, light clay and sandy clay loam, while gramite soils in Kwangnung sandy loam. The $SiO_2$ /$AI_2$$O_3$ ratio of the grassland in Chejudo was 1.11 and that of the oak forest soils was 1.24, while granite soils in Kwangnung 1.54 and 1.46, respectively. The buffer actions of ba-salt soils against the N /10 HCI and $Ca(OH)_2$ were stronger than those of granite soils. The $SiO_2$/$Al_2$$O_3$ + $Fe_2$$O_3$ ratios of grassland and oak forest soils of basalt in Chejudo showed 1.10 and 1.24 respectively, while those of the grassland and oak forest of Kwangnung 1.44 and 1.33. The base exchange capacity of basalt soils which has higher value of exchangeable hydrogen was stronger than that of granite soils. But the base saturation of granite soils showed higher value than that of basalt soils. Water contents of basalt soils in Chejudo was lower than that of granite soils fo Kwangnung Basalt soils in Chejudo contain still more humus and total nitrogen than gran-ite soils in kwangnung, The amount of available nitrogen, available phosphorus and exchangeable calcium of granite soils were more than that of basalt soils, Therefore, estimating the soil fertility, granite soils in Kwangnung is higher than that of basalt soils in Chejudo.

• Animal Systematics, Evolution and Diversity
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• v.8 no.2
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• pp.279-300
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• 1992

The Korean marine hydrioid fauna identified up to data consists of 120 species of 55 genera in 17 families. Of which Abientiunaria filicula (Ellis and Solander, 1786) is new to the Korean fauna, and the dominant species of hydroids in Korean water is Sertularella miurensis Stechow, 1921 which is collected from 33 points of 96 localities. The coastal waters of Korea are divided into four regions : the East Sea, the South Sea, the Yellow sea and the Chejudo. Concerning the total number of species occured in each region, 43 species in the East Sea, 52 species in the Yellow Sea, 73 species in the South Sea and 83 species in the Chejudo and its vicinity. From the results above described it can be salid that the Chejudo region shows the most diversity of the Korea hydroids. The community coefficient of the East Sea-the Yellow Sea is 0.444, that of the East Sea-the South Sea 0.553, that of the East Sea-Chejudo 0.519, that of the Yellow Sea-the Sea 0.682, that of the Yellow Sea-the Chejudo 0.533 and that of the South Sea-the Chejudo 0.642. So that the zoogeographical relatinship between the Yellow Sea and the South Sea is the highest and between the East Sea and the Yellow Sea is the lowest on the hydroids distribution.

• Animal Systematics, Evolution and Diversity
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• v.4 no.1
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• pp.57-66
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• 1988

한국 해산 히드라충류의 분류학적 연구의 일환으로 1973년부터 1987년까지 울릉도와 제주도에서 채집되어 이화여자대학교 자연과학대학 생물학과에 보관되어 있는 미동정 표본들을 동정 분류하였다. 그 결과 Cryptolaria pectinata (Allman, 1888), Modeeria rotunda (Quoy & Gaimard, 1817) 그리고 Thecocarpus myriophyllum orientalis Billard, 1908 가 한국 미기록종으로 밝혀졌다.

• The Korean Journal of Ecology
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• v.17 no.3
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• pp.379-385
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• 1994

Sonograms of songs recorded in Kwangnung and Chejudo were analyzed to investigate the features and variances in the songs of Great tit, Parus major variety. Songs of Great tits were identified, most of which were repetitions of phrases compoed of high-frequency note and low-frequency note. Variances between the songs of the two areas in the minimum and maximum of low-frequency were significat. The CV range of the Great tit group in Chejudo was wider than that in Kwangnung. Interregional variance level was significant in the minimum (P<0.04) and maximum (P<0.0001) of low-frequency.

• Animal Systematics, Evolution and Diversity
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• v.16 no.1
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• pp.23-30
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• 2000

Some asteroids were collected at a depth of 30 m in Chejudo Island. Of which two species were identified as Luidia maculata Muller et Troschel, 1842 and Linckia laevigata Linne, 1758. These species are turned out to be new to the Korean fauna and redescribed on the morphological characteristics with illustrations. Eighteen species of asteroids are reported to be distributed in the Chejudo Island of Korea.

• Asian Journal of Turfgrass Science
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• v.9 no.1
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• pp.53-74
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• 1995

This study was made on the relationships among production structures, biomass and Soil proper-ties of grassland types in Chejudo. The results of this investigation were obtained as foolows. The annual productions of the grasslands of Zoysio, Imperata, Themede, Miscanthus and Pteridium types were 40.36~144.00, 168.28~272.44, 58.24~138.44, 156.12 ~714. 12 and 157. 18~398.40g /m$^2$, respectively. The production structures of those grassland types were different from one another. The water contents, organic matter, total nitrogen and available phosphorus were different levels between grasslands had a simple correlation at 5% level and the organic matter contents were a higher significant at the partial correlation. Key words: Production Structure, Biomass, Soil properity, Chejudo.

• The Korean Journal of Malacology
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• v.7 no.1
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• pp.1-11
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• 1991

Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Arinia H. & A. Adams, 1856 Arinia chejuensis n. sp.Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Cavernacmella Habe, 1942 cavernacmella coreana n. sp.Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Mirus Albers, 1850 Mirus junensis n. sp.Genus Paganizaptyx Kuroda, 1945 Paganizaptyx miyanagai ullungdoensis. subsp.Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Ratinella Shuttleworth, 1877 Retinella radiatula coreana n. subsp.Genus Sitalina Thiele, 1931 Sitalina chejuensis n. sp.

• Proceedings of the Zoological Society Korea Conference
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• 1997.10b
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• pp.118-118
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• 1997

No Abstract, See Full Text

• Animal Systematics, Evolution and Diversity
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• v.16 no.1
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• pp.31-37
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• 2000

Three xanthoid crabs Novactaea pulchella (A. Milne Edwards, 1865), Calvactaea tuminda Ward, 1933, and Pilumnopeus granulatus Balss, 1933, from Chejudo Island are recorded as new to the Korean fauna. Up to date the Korean crabs of the superfamily Xanthoidea consist of 29 species belonging to 3 families.

• Animal Systematics, Evolution and Diversity
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• v.15 no.1
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• pp.83-105
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• 1999

Thirteen cumacean species in four families were identified from the southern coast and Chejudo Island in Korea. Three of them, Campylaspis pumila Gamo, Cumella alveata Gamo, and Cumella glaberata Gamo, are recorded newly to Korean fauna. Among them, female of C. alveata is described for the first time in the would.