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Four Species of Jumping Spiders (Areaneae: Salticidae) from China

  • Xian-Jin Peng;Joo-Pil Kim
    • Animal cells and systems
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    • v.2 no.4
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    • pp.411-414
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    • 1998
  • One novel species, Phaeacius yunnanensis n. sp. and three species new to China, Brettus albolimbattus, Hyllus lacertosus and Ptocasius kinhi of the jumping spider.belonging to the family Salticidae, are described based on the materials collected from Yunnan Province, China. The new species is similar to Phaecius lancerarius, but can be distinguished by secondary conductor covers on the emblus. That of the latter below the emblous, retro1aterial tibial apophysis, is much more slender and with an abdominal pattern.

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A New Record of Melita bingoensis (Crustacea: Amphipoda: Melitidae) from Korea

  • Shin, Myung-Hwa;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.27 no.2
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    • pp.201-204
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    • 2011
  • A melitid species, Melita bingoensis Yamato, 1987 collected from the Yellow Sea, is reported for the first time in Korea. This species has a slit-like pocket in coxa 6 of female, which is not found in other Korean melitid amphipods. In this paper, we compared this species with three other previously known Korean species in the same genus.

GLOBAL STABILITY OF SOLUTIONS OF AN ELECTROCHEMISTRY MODEL WITH A SINGLE REACTION

  • Kim, Eu-Hee
    • Communications of the Korean Mathematical Society
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    • v.14 no.2
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    • pp.429-440
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    • 1999
  • In this paper an electrochemistry model which consists of three charged species is considered. A dissociation-association reaction is allowed to take place between these species. The species of ions diffuse owing to concentration gradients and migrate because of electric forces. We prove that any initial distribution of species concentrations will settle down to the unique steady state as time becomes large.

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Studies on the Classfication and the Living Conditions of Drosophilidae in Korea (II) (한국산 초파리의 분류와 생태(2)-한국산 초파리의 미기록종에 관하여-)

  • 강영선;정옥기;이혜영
    • The Korean Journal of Zoology
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    • v.2 no.2
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    • pp.25-29
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    • 1959
  • The collections of Drosophilid filies were made for this stduy in three localities (Kwang-nung in Kyung-ki province, Chae-ju Island, Yong-Moon in Kyung -Ki province), during a period from April to October, 1959. Total specimens 7857 collected at these areas were classified into 7 genera, 67 species. Among these species, 5 genera, 17 species are unrecorded species Drosophilidae of Korea.

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A taxonomic review of Korean Mocyta Mulsant & Rey with description of a new species (Coleoptera, Staphylinidae, Aleocharinae)

  • LEE, Seung-Gyu;AHN, Kee-Jeong
    • Entomological Research
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    • v.48 no.6
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    • pp.499-504
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    • 2018
  • A taxonomic review of the genus Mocyta Mulsant & Rey in Korea is presented. The genus is represented in Korea by three species including Mocyta jani Lee & Ahn, sp. nov. and M. vivida (Sharp), comb. nov. A key to Korean species, descriptions, habitus photographs and illustrations of the diagnostic characters are provided.

Taxonomic Study of the Genus Scolobates (Hymenoptera: Ichneumonidae: Ctenopelmatinae) from Korea

  • Lee, Jong-Wook;Suh, Kyong-In;Choi, Jin-Kyung;Kim, Chul-Heun
    • Animal Systematics, Evolution and Diversity
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    • v.22 no.2
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    • pp.179-184
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    • 2006
  • Korean species of the genus Scolobates are reviewed. Three species, Scolobates nigriabdominalis (Uchida, 1952), S. ruficeps (Uchida, 1932), and S. testaceus (Morley, 1913) are newly included in Korean fauna. A revised key to the species, redescriptions and photographs of all Korean species are provided.

Morphological and Chromosomal Charateristics of the Three Introduced Cyprinid Species (Cyprinidae) (도입된 잉어과 어류 3종의 외부형태 및 염색체 특징)

  • Kim, Seong-Won;Choi, Nack-Joong;Lee, Jong-Yun;Lee, Wan-Ok;Jang, Seon-Il
    • Korean Journal of Ichthyology
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    • v.8 no.2
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    • pp.68-73
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    • 1996
  • This study was carried out to obtain the basic information on morphological and chromosomal charateristics in the three species of Chinese carps (grass carp; Ctenopharyngodon idellua, bighead carp; Aristichthys nobilis, and silver carp; Hypophthalmichthys molitrix) introduced to Korea from China. C. idellua was differ from A. nobilis and H. molitrix by the number of gill rakers, scales, fin rays, body proportion. A. nobilis and H. molitrix were similar in having ventral keel and many scale number, but H. molitrix was differ from A. nobilis by the connected gill rakers and body color pattern. Diploid chromosome and arm number (fundamental number, NF) of the three species were all the same to 2n=48 and NF=84. Diploid chromosome numbers in the three species are consisted of 10 pairs of metacentric chromosome, 8 pairs of submetacentric chromosome and 6 pairs of acro and/ or telocentric chromosome. Morphological and karyological relationship of the three Chinese carps are discussed.

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Analysis of Genetic Relationship Among Native Pears Grown in Korea and Several Commercially Developed Cultivars from Two Pyrus Species Based on RAPD Analysis

  • Cho, Dong-Wook;Oh, Jin-Pyo;Chung, Kyu-Hwan
    • Korean Journal of Plant Resources
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    • v.20 no.6
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    • pp.563-569
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    • 2007
  • RAPD analysis showed that all the OTUs of 'Sandolbae' were the same species because amplified band patterns of all samples generated by each of 5 random primers were identical. Even though there were different environmental conditions, all the "Chuiangne" trees from three different places were the same species, and also all the "Cheongshilli" trees were the same species too. No genetic variations were detected between native Korean pears grown in the habitats and in the research field. Because 212 polymorphic bands were generated by 9 primers selected through primer screening, they were possible to analyze genetic relationship among naturally growing three native Korean pears and nine cultivars of Pyrus pyrifolia and P. communis. Based on the RAPD analysis, three main groups were formed. The first group represented the Six P. pyrifoia cultivars, the second group was the three native Korean pears, and the last group was the three P. communis cultivars. Genetic distance between 'Wonwhang' and 'Chojuro' was closer than other cultivars in group 1 since dissimilarity index value between these two cultivars was 50.82. However, genetic distance between 'Niitaka' and 'Chojuro' was the most distant compared to the others in group 1. In group 2, 'Sandlobae' was genetically closer to 'Chuiangne' than 'Cheongshilli' because dissimilarity index value between 'Sandlobae' and 'Chuiangne' was smaller, 50.82, than the value between 'Sandlobae' and 'Cheongshilli', 63.636. In group 3, 'Old Home' was genetically closer to 'Bartlett' than 'Kaiser Alexander(or Bosc)'. Group 3 composed of P. communis cultivars was genetically further than other two groups, P. pyrifolia cultivars and native Korean pears.

The species list of insects and spiders appear in the press Elementary School Textbooks (초등학교 교과서에 게재된 곤충 및 거미류 종 목록)

  • Lee, YoungBo;Park, Hae-Chul;Han, Tae-Man;Kim, Seong-Hyun;Whang, Seok-Jo;Kim, Nam-Jung
    • Journal of Sericultural and Entomological Science
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    • v.50 no.2
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    • pp.178-188
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    • 2012
  • Since based on the 7th revised educational curriculum, the insects and spiders in elementary school textbook are as follows. A total of 60 species belonging to ten order of insects and three species of two families in the order Araneae were investigated. Among of them, we found that the species name and their photos were switched in three times, and also, misidentified species name were examined in three times. In the result of spices appearing frequencies between insects and spiders in the whole grade levels, the confirmed species numbers were a total of 63 species and the number of frequencies were 169 times. In the appearing frequencies, the correct identified species are relatively lowed as only 44 times(26.0%). In investigation on the appearing frequencies for the each insect orders, Othoptera and Coleoptera are mostly high such as ten and nine times, respectively. The appearing frequency for species levels are sequently counted as Drosophila sp.(18 times), Oxya chinensis sinuosa(16 times), and Papilio xuthus(12 times). The result of investigation for the appearing frequencies of insects in the each grades and semesters indicated that the first semester of third grade includes most large number insects which are 18 insect species, contrary, only one insect species are reported in the first semester of second grade.

New Frontiers of Knowledge on Nepalese Plant Science

  • Shrestha, Gyan L.;Shrestha, Bhushan
    • Korean Journal of Weed Science
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    • v.14 no.1
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    • pp.71-80
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    • 1994
  • Nepal, with its unique geographical and ecological features due to its abrupt rise in altitude, plays significant role in biological evolution. Existence of numerous wild relatives of the present-day cultivated agricultural crop plants in this small Himalayan nation may serve as a potential source of several yet unidentified desirable genes that are needed for future incorporation in the improvement of cultivated crop plants. This report includes 82 different wild relatives of 41 genera under 19 families of 37 agricultural crops of Nepal(Table 1). It serves as the sample of the glossary of these wild relatives of crop plants in Nepal. Under food grain crop plants of gramineae, leguminoceae and polygonaceae families, 16 different wild species namely wild rices(7 species), wild relatives of wheat plant(3 species), wild arhar(3 species), wild fingermillets(1 species) and wild buckwheat(2 species) have been identified in different parts of the country. Similarly, under vegetable crop plants of Araceae, Amaranthaceae, Crucifereae, Cucurbitaceae, Dioscoreaceae, Labiteae, Leguminosae, Liliaceae, Malvaceae, Polygonaceae, Solanaceae and Umbellifereae, 37 different wild species-wild colocasia(1 species), wild amaranths(3 species), wild leafy vegetables(2 species), wild gourds(3 species), wild cucumber(1 species), wild yams(4 species), wild mints(3 species), wild fenugreeks(4 species), wild pea(1 species), wild beans(3 species), wild garlics(2 species), wild spinach(3 species), wild lady's finger(1 species), wild spinach(3 species), wild eggplants(2 species) and wild carrot(one species) have also been identified. In case of wild relatives of cultivated orchard plants, 11 different wild species namely wild mango(one species), wild banana(one species), wild strawberry(one species), wild pear(one species), wild cherries(2 species), wild apple(one species) and wild grapes(3 species) have been identified, Among 19 different wild species of economic crop plants, five wild species of sugarcane, one species of wild sunhemp, two wild relatives of cotton, three wild relatives of rose, two wild species of tobacco, four wild species of turmeric and two wild species of tea have also been identified. This report includes only sample of the total wild species of the present-day cultivated agricultural crop plants. Further exploration on this economic botany will help the country in cataloging the wild relatives of cultivated crop plants and their future use in crop improvement.

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