• 한국동물학회:학술대회논문집
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• 한국동물학회 1998년도 한국생물과학협회 학술발표대회
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• pp.157.2-157
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• 1998

No Abstract, See Full Text

• 환경생물
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• 제33권2호
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• pp.140-147
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• 2015

The rotifers collected from various terrestrial habitats such as mosses, lichens and mushrooms on tree trunks at four different locations in Korea were investigated. Five species and one subspecies belonging to four genera in three families of monogonont and bdelloid rotifers were identified: Adineta cuneata Milne, 1916, Macrotrachela insolita De Koning, 1947, Macrotrachela musculosa Milne, 1886, Macrotrachela nana nana (Bryce, 1912), Mniobia bredensis De Koning, 1947 and Bryceella stylata (Milne, 1886). All these rotifers are new to Korea, and A. cuneata, M. bredensis and B. stylata are new to Asia as well. Here diagnostic characteristics and illustrations are provided for each Korean new record.

• The Korean Journal of Ecology
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• 제15권2호
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• pp.201-208
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• 1992

Wild rats inhabiting pundang area where urbanized since 1989 were there species including apodemus agrarius. amoung them, a. agrarius was dominant as shown in other areas of korea. They were captured much more 85.00$\pm$9.46 per ha., 64.40$\pm$7.50 per ha. respectively in may and August than inother seasons all through the year. The proportion of female and male was in the ratio of 2 to 1 regardless of the season and habitat, and this species was inhabiting more at oak forest community in summer and at hill-upland boundary in winter than at other habitats in the same season. The change of environment by new urbanizing did not affect in density of wild rats. In general, seasonal percentage of capture in different habitats inceased in accordance with high density.

• Journal of Species Research
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• 제6권spc호
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• pp.26-37
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• 2017

Rotifers collected from various terrestrial and aquatic habitats such as mosses on trees or rocks, tree barks, wet mosses and wet leaf litter at streams, and dry leaf litter at four different locations in Korea, were investigated. Thirteen species belonging to nine genera in five families of monogonont and bdelloid rotifers were identified: Bryceella perpusilla Wilts, Martinez Arbizu and Ahlrichs, 2010, Collotheca ornata (Ehrenberg, 1830), Habrotrocha flava Bryce, 1915, H. pusilla (Bryce, 1893), Macrotrachela aculeata Milne, 1886, M. plicata (Bryce, 1892), Mniobia montium Murray, 1911, M. tentans Donner, 1949, Notommata cyrtopus Gosse, 1886, Philodina lepta Wulfert, 1951, P. tranquilla Wulfert, 1942, Pleuretra hystrix $Barto{\check{s}}$, 1950 and Proalinopsis caudatus (Collins, 1873). All these rotifers are new to Korea, and B. perpusilla, H. flava, M. montium, P. caudatus, P. hystrix and P. lepta are new to Asia as well. Of interest, the present study is the first to record B. perpusilla outside its type locality. In addition, P. lepta has previously been recorded from only three European countries.

• The Korean Journal of Ecology
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• 제17권4호
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• pp.471-484
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• 1994

The forest vegetation types and their structural characteristics in Mt. $Mud\v{u}ng$ were investigated by classification method and ordination method. The forest was classified into 7 communities by ristic composition table: Quercus monogolica community, Q. serrata community, Q.acutissima community, Q.variabilis community, Q.dentata community, Pinus densiflora community and Frainus mandshurica community. Considering the moisture gradient, two kinds of distributuin pattern were shown as follows; F. mandshurica, Q. acturissima, Platycarya strobilacea and Staphylea bumalda were distribute at moist habitats, while Q. monogolica, P. densiflora and Q.variabilis at dry habitats. In continuum analysis, each population occupied different distribution area but it was continuously overlapped. On the successional trends of tree species, it is postulated that Q. mongolica species might dominate the altitudinal zone over 700m.

• ALGAE
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• 제21권4호
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• pp.377-392
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• 2006

Seventy eight taxa of Bacillariophyceae belonging to 1 species of Aulacoseira, 1 species of Cyclotella, 1 species of Tabellaria, 1species of Diatoma, 1 species of Thallasionema, 1 species of Grammatophora, 1 species of Fragilaria, 8 species of Synedra, 2 species of Achnanthes, 1 species of Cocconeis, 1 species of Diadesmis, 1 species of Diplonies, 2 species of Gyrosigma, 3 species of Pleurosigma, 15 species of Navicula, 4 species of Pinnularia, 3 species of Stauroneis, 1 species of Eunotia, 2 species of Himantidium, 11 species Gomphonema, 5 species of Cymbella, 1 species of Cocconema, 4 species of Amphora, 1 species of Rhopalodia, 5 species of Nitzschia and 1 species of Surirella were reported from different fresh water habitats of Orissa state and its neighbouring regions of India. All the taxa were recorded for the first time from this region.

• Journal of Species Research
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• 제3권1호
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• pp.53-62
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• 2014

The rotifers collected from a brackish water zone as well as various terrestrial habitats such as mosses, ichens, and leaf litter at seven different locations in Korea were investigated. Eight species/subspecies belonging to five genera in five families of monogonont and bdelloid rotifers new to Korea were identified: Encentrum incisum, Encentrum uncinatum, Cephalodella innesi, Adineta gracilis, Macrotrachella timida timida, Macrotrachella timida inquies, Habrotrocha pavida and Habrotrocha scabropyga. Five bdelloids are new to Asia as well. Notably, these eight Korean new records included three rare species. H. scabropyga is recorded outside its type locality for the first time. For M. timida timida, this study is the third record after its description. In addition, E. incisum has been reported only from Austria, Germany and Russia before the present study.

• Journal of Microbiology
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• 제45권3호
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• pp.205-212
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• 2007

Anoxygenic photosynthesis, performed primarily by anoxygenic photosynthetic bacteria (APB), has been supposed to arise on Earth more than 3 billion years ago. The long established APB are distributed in almost every corner where light can reach. However, the relationship between APB phylogeny and source environments has been largely unexplored. Here we retrieved the pufM sequences and related source information of 89 pufM containing species from the public database. Phylogenetic analysis revealed that horizontal gene transfer (HGT) most likely occurred within 11 out of a total 21 pufM subgroups, not only among species within the same class but also among species of different phyla or subphyla. A clear source environment feature related phylogenetic distribution pattern was observed, with all species from oxic habitats and those from anoxic habitats clustering into independent subgroups, respectively. HGT among ancient APB and subsequent long term evolution and adaptation to separated niches may have contributed to the coupling of environment and pufM phylogeny.

• Entomological Research
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• 제48권6호
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• pp.514-521
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• 2018

Drosophila melanogaster Meigen and Drosophila suzukii Matsumura are taxonomically close Drosophila species belonging to the family Drosophilidae and melanogaster group. D. melanogaster is thought to be evolutionarily adapted to overripe, decaying, and fermented fruits, in which large amounts of chemicals such as ethanol, acetic acid, and 2-phenylethanol are produced, whereas, D. suzukii is attracted to fresh ripening fruit. Considering the distinct habitats of the two flies, D. suzukii is hypothesized to exhibit higher susceptibility to these chemicals than D. melanogaster. Therefore, in this study, we investigated the survival rate of the flies at various concentrations of three chemicals (2-phenlyethanol, acetic acid, and ethanol) and calculated the lethal concentration (LC) values to compare the tolerance and susceptibility of D. melanogaster and D. suzukii to the chemicals. Our results revealed that D. melanogaster exhibited higher tolerance than D. suzukii to all chemicals, supporting the hypothesis of different evolutionary adaptations to distinct habitats of the two flies.

• Journal of Species Research
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• 제12권2호
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• pp.115-121
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• 2023

We conducted a taxonomic study of bdelloid rotifers found from terrestrial habitats such as mosses, leaf litter and soil at four different locations in Korea. The study resulted in four new Korean records belonging to two genera in two families, Habrotrochidae and Philodinidae, of bdelloid rotifers: Habrotrocha soror Donner, 1950; H. thienemanni rubella Donner, 1951; H. valida Milne, 1916 and Philodina nitida nitida Milne, 1916. These new Korean records are rare and have very limited distributions. Habrotrocha thienemanni rubella and H. valida were not found again after their original descriptions until the present study. The present study is the third record for both H. soror and P. nitida nitida. All these four new Korean records are new to Asian fauna as well. Here, diagnostic characteristics and photomicrographs are provided for each new Korean record. In addition, a partial sequence of mitochondrial cytochrome c oxidase subunit 1 gene (mtCOX1) for P. nitida nitida is presented.