• 제목/요약/키워드: Spiders

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The Current Status and Trends in the Research of Chinese Arachnology

  • Yin, Chang-Min
    • 한국토양동물학회:학술대회논문집
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    • 한국토양동물학회 1997년도 총회 및 춘계학술대회
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    • pp.2-4
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    • 1997
  • This report includes 4 Part. I the characteristic of chinese Arachnological research; II, Systematic studies on Araneae we made in resent years; III. The survey of ecological study of Chinese Arachnology ; IV. Biocemical study of the venom and silk proteins of spiders.

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Web Orientation in a Golden Orb-web Spider Nephila clavata (Araneae: Tetragnathidae)

  • Park, Tae-Soon;Jeon, Joong-Hwan;Lim, Hang-Kyo;Lee, Sang-Im;Choe, Jae-Chun
    • Animal cells and systems
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    • 제3권2호
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    • pp.161-165
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    • 1999
  • Nephila clavata, a golden orb-web spider, was studied at two different field sites with respect to web size, height, and orientation. A majority of spiders at Site 1 (a band of shrub bush) built their webs parallel or nearly parallel to the edge of the bush. Similarly, at Site 2 (near a pond), most webs were aligned with the shoreline of the pond. Among the possible determining factors for the observed patterns of web orientation, wind and light did not appear important. Instead, the movement direction of insect prey appeared largely responsible. Disproportionately more webs faced outside the bush and toward the pond than inside the bush and away from the pond at Site 1 and 2, respectively. Such trend was more apparent for larger spiders with larger webs.

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소나무숲의 거미군집의 Guild 구조 및 계절적 변동 (Guild Structure and Seasonal Occurrences of Spider Communities in Pine Plantation Habitat)

  • Lee, Goen-Hyoung;Lee, Hai-Poong
    • The Korean Journal of Ecology
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    • 제13권2호
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    • pp.149-163
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    • 1990
  • Two distinct spider communities were studied in the crowns and ground surfaces of pine plantations at Mt. Ungilsan, Kyonggi-do using pitfall traps and knock-down by spraying of an insecticide (D.D.V.P.) to sample spiders. There were 34 species of 11 families in the ground community and 41 species of 15 families in the crown community, with only 9 species being collected in both. Wandering spiders comprised 78.5% of the crown community and 90.8% of the ground community. Guild abundance and the most abundant families were distinctly different in the two habitats: agile hunters (Salticidae:32.4%) and nocturnal hunters (Clubionidae:19%) in the crown, runners (Lycocidae:32.8%) and nocturnal hunters (Gnaphosidae:31.2%) in the ground. Dominant species were Clubiona jucunda (Karsch) and Mymarachne japonica (Karsch) in the crown, while in the ground they were Pardosa laura Karsch and Gnaphosa silvicola. Species diversity(H ) had peaks in May, July and November in the ground community, while in the crown community peaks were in June and September. The seasonal trends of species diversity (H ) were due mainly to differences in the number of species and the numbers of individuals collected at each sample date rather than to differences in equitability among species. Spier guilds and dominant species have different seasonal patterns based on the temporal differences in prey availability in the two communities and the reduction of temporal overlap.

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한국땅거미(Atypus coreanus Kim, 1985)의 시각기 미세구조 (Ultrastructure of the Eye in the Atypus coreanus Kim, 1985)

  • 권중균;고명규;정호삼;김주필
    • Applied Microscopy
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    • 제28권4호
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    • pp.477-490
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    • 1998
  • Most spiders have four pairs of simple eyes. A few families of the spider have their developed eyes to an extent visual cues make up a significant of information to response from the external stimuli. Most spiders respond to the external stimuli around them. Specially, they are very sensitive to vibrations from the air, the ground, their webs, or even the surface of water. The present study was undertaken to examine the evolutionary development and function of eye with the observation of visual ultrastructure of Atypus coreanus Kim, 1985 using the electron microscopy. They have weak mobility, limited territory and low developed eyes. Atypus coreanus was collected from Mt. Ungil, Namyangju-gun, Kyonggi province. The fine structure of these eyes was examined by electron microscopy, and prepard by teasing method for scanning electron microscopic observation. As a result, the eyes of Atypus coreanus was composed of cornea, lens, vitreous body, retina, and rhabdome.

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파종방법을 달리한 수원 및 이천 지역 소규모 수도포장에서의 절지동물 군집 (Arthropod Community in Small Rice Field associated with Different Planting Methods in Suwon and Incheon)

  • 이준호;김광호;임언택
    • 한국응용곤충학회지
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    • 제36권1호
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    • pp.55-66
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    • 1997
  • 파종방법을 달리한 논생태계내 절지동물의 군집상을 분석하기 위하여 경기도 수원에 위치한 담수직파, 건답직파, 이앙구의 3포장과 이천에 위치한 담수직파, 이앙구 2포장을 선정하여 1994년도에 조사하였다. 절지동물은 총 15목 45과가 채집되었다. 절지동물군집을 기능군(길드)로 나누어 분석한 결과, 두 지역 모두 파종 방법에 관계없이 밀도가 '천적군>해충군>비해충군'의 순으로 나타났다. 해충군에는 멸구과(Delphacidae)의 벼멸구(Nilaparvata lugens Stal), 흰등멸구(Sogatella furcifera Horvath), 애멸구(Laodelphax striatellus Fallen)와 매미충과(Cicadelidae)의 끝동매미충(Nephotettix cincticeps Uhler)이 우점종들이었고 전체 해충군의 80% 이상을 차지하였다. 파종방식에 따른 해충밀도의 유의성 있는 차이는 없었다. 천적군에서는 거미류가 전체 천적의 90% 이상을 차지했다. 그 중 배회성 거미(hunting spider)와 50% 이상이었고 늑대거미과(Lycosidae)의 황산적거미(Pirata subpiraticus Bos. et St.)가 주요 우점종이었다. 조망성 거미류(webbing spider)에서는 갈거미과 (Tetragnathidae)의 턱거미(Pachygnatha clerki Sundevall)가 주요 우점종이었다. 파종방식에 따른 거미군 집구성의 뚜렷한 차이는 없었다. 비해충군은 본답 초기에 깔따구류 등의 파리류가 주종을 이루었고 벼의 생육이 진전됨에 따라 급격히 감소하였다. 파리류의 발생은 기계이앙구보다 직파구에서 많았으며 특시 건답직파구에서 많이 발생하였다.

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