• Title/Summary/Keyword: Spiders

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The Spider Fauna of Chun Cheon area, Kangweon do, Korea (춘천지방의 거미상)

  • Namkung Joon;Paik Namkeuk
    • Korean journal of applied entomology
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    • v.12 no.3
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    • pp.131-137
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    • 1973
  • This paper is given for the first time as a list of spiders from Chuncheon area, in land of kang-weon-do, mid-eastern part of Korea. Materials were collected during the early August 1972 by the Biological members of the chuncheon girl's high school, in chuncheon area. In addition to this materials collected by paik and Nam kung during July 1973 at Mt. Sam-ak which is located on south-west of chuncheon were examined. 1) In this paper, tile authors record 105 species of spiders belonging to 22 families, including 4 undetermined species from chuncheon area. 2) The followings are newly added to the spider fauna in Korea. a) Curstulina sp. b) Zelotes asiaticus(BOES. et STR.) 3) These materials are not sufficient for general discussion of the spider fauna of chuncheon area, however, an outline can be summarized as follow: 21 northern species $(20.8\%)$ 5 southern species $(5.0\%)$ 3 cosmopolitan species $(3.0\%)$ 72 plaearctic species $(71.2\%)$

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Silk Spinning Apparatuses in the Cribellate Spider Nurscia albofasciata (Araneae: Titanoecidae)

  • Park, Eun-Ah;Moon, Myung-Jin
    • Animal cells and systems
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    • v.13 no.2
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    • pp.153-160
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    • 2009
  • The fine structural characteristics of the silk spinning apparatus in the titanoecid spiders Nurscia albofasciata have been examined by the field emission scanning electron microscopy (FESEM). This titanoecid spiders have a pair of medially divided cribella just in front of the anterior spinnerets, and the surface of the cribellum is covered by hundred of tiny spigots which produce numerous cribellate silk fibrils. The cribellar silks are produced from the spigots of the sieve-like prate. and considered as a quite different sort of catching silk with dry-adhesive properties. The other types of the silk spigots were identified as follows: ampullate, pyriform and aciniform glands. Two pairs of major ampullate glands send secretory ductules to the anterior spinnerets, and another 1-2 pairs of minor ampullate glands supply the middle spinnerets. In addition, the pyriform glands send ductules to the anterior spinnerets, and two kinds of the aciniform spigots feed silk into the middle (A type) and the posterior spinnerets (both of A & B types), respectively.

The Spider Fauna of Is. Dae Heucksan-do and Is. Hong-do, Korea (대흑산도와 홍도의 거미상)

  • Namkung Joon
    • Korean journal of applied entomology
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    • v.17 no.3 s.36
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    • pp.161-166
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    • 1978
  • Is. Dae Heucksan-do and Is. Heucksan-do and Is. Hong-do are located in the southwestern, apart 110km from Mockpo city, Korea., and the spider fauna of this area has never been explored. The author collected the spiders from these Islands in August 1974. Findings were; 1) 83 species of spiders belonging to 17 families, including 5 undetermined species. 2) Leptoneta sp., Carrhotus sp. (A), Marpissa sp. and Synagelides sp. are reserved for future study. 3) The materials were not sufficient for general discussion and conclusions of the spider fauna of these Islands. However, results can be summarized as follows: 7 northern species $8.9\%$ 9 southern species $11.5\%$, 4 cosmopolitan $5.1\%$ 4) The common species of mainland China were 41 $51.9\%$. 5) As the result of this survey, the spider fauna of this area is similar to that of the Is. Cheju-do and Is. Tsushima, in the south eastern area, and have much more common to China than any another area in Korea.

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Spiders from Oksunbong in Chungcheongbuk-do, Korea

  • Im, Moon-Soon;Lee, Sue-Yeon;Jung, Jong-Kook;Koo, Han-Mo;Yoo, Jung-Sun;Kim, Seung-Tae
    • Journal of Species Research
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    • v.1 no.2
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    • pp.151-155
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    • 2012
  • Spider fauna of Oksunbong located in Jecheon City, Chungcheongbuk-do, was surveyed provisionally from May to September in 1998. A total of 58 species of 40 genera in 18 families from 301 individuals of spiders were identified. Species richness of each family, there were 10 Araneid species (17.2%), followed by 9 Theridiid species (15.5%), and 8 Tetergnathid speices (13.8%). Zoogeographically, spider fauna of Oksunbong represented 1 cosmopolitan species (1.7%), 2 holarctic region species (3.4%), and 7 palearctic region species (12.1%). However, Korean endemic species were not collected during this survey. Thus it is suggested that spider fauna of Oksunbong was under northern regional influence.

Sex Ratio and Approximate Date of Fertilization of the Subsocial Spider Amaurobius ferox Walckenaer (Araneae: Amaurobiidae)

  • Kim, Kil-Won;Choe, Jae-Chun
    • Journal of Ecology and Environment
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    • v.30 no.3
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    • pp.277-280
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    • 2007
  • Social spiders consistently show highly female-biased sex ratios. However, the sex ratio of subsocial spiders, which have been suggested as an intermediate stage of the evolutionary pathway towards permanent sociality, is generally unknown. We investigated the sex ratio and approximate date of fertilization of the subsocial spider, Amaurobius ferox Walckenaer (Araneae: Amaurobiidae). Investigation over 2 years revealed that sex ratio of A. ferox was consistent across years and averaged 0.49. By early May $(1^{st}{\sim}10^{th})$, 66.6% of female A. ferox observed in the field had already been inseminated, and by late May $(21^{st}{\sim}31^{th})$, 95.4% of females had been inseminated. This result suggests that A. ferox need a long time or cold temperatures to prepare them for reproduction after the developmental attainment of the adult stage.

Korean Spiders of Genus Cybaeus (Araneae,Argyroneticdae)2. Two New Cave Spiders from Korea (한국산 굴둑거미속 (물거미과)의 분류학적 연구 2. - 동굴산 2신종의 기재)

  • 백갑용;남궁환
    • The Korean Journal of Zoology
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    • v.10 no.1
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    • pp.21-26
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    • 1967
  • 한국산 굴둑거미속에 관해서는 이미 저자의 한사람인 백의 보고(1966)가 있으나 금반 남궁준이 각지의 동굴에서 채집한 표본을 조사한 결과 다음 2 신종을 얻었기에 보고한다. 신종명 Cybaeus mosanensis n. sp. C. whanseunensis n. sp. 전기 백의 보고 중 한국 미기록종으로 기재한 C. nipponicus 는 남궁이 채집한 수컷의 palpus의 형태등에 의하여 이와는 뚜렷이 다른 한 신종으로 판명되었으므로 이에 C. mosanensis 라 명명하여 여기에 다시 기재하였다. 암컷은 이미 전보에서 상세히 기재하였으므로 본보에서는 수컷만 취급하였다. 따라서 본보이전에 저자들이 보고한 C.nipponicus 는 모두 C. mosanensis 의 synonym 으로 한다. 여기 기재한 2 신종 중 C. mosanensis 는 동굴 밖에서도 많이 발견되지만 C. whanseunensis 는 지금까지 동굴에서만 채집되었다. 이로서 한국산 굴둑거미속은 C. longus Paik, 1966 및 C. mosanensis, C. whanseunensis 의 3 종이 된다.

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The Spider Fauna of Geojedo Island, Korea (거제도의 거미상)

  • Joo Pil Kim
    • Animal Systematics, Evolution and Diversity
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    • v.14 no.3
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    • pp.279-291
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    • 1998
  • To clarify the spider fauna of Geojedo Island, a field survery was conducted in August, 1997. As a result, 92 species belonging to 56 genera of 20 families were collected. Identified spider are composed of 6.60% Palaearctic, 7.70% Holarctic, 2.20% Oriental, 3.30% cosmopolitan species. Spiders of Theridiidae, Araneidae and Salticidae were dominant, 82(90.1%) and 75 species(82.4%) of spiders were found in common with Japan, China, respectively. Faunal similarities between Geojedo island and Deogjeong Archipelago, Chejudo Island, Ulleungdo Island, Chindo Island, Paiklyeongdo Island and Kogeumdo Island are discussed.

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Effects of Winter Fire on Arthropoda Communities of Rice Fields (잔디 초지의 쥐불이 인접한 논의 절지동물군집의 동태에 미치는 영향)

  • 이학섭;장남기
    • Asian Journal of Turfgrass Science
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    • v.4 no.2
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    • pp.101-118
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    • 1990
  • Effects of Zoysia japonica fired in winter on the arthropoda communities in its grassland and rice field was investigated . The results gave indicated that a significant difference between total 15,120 individuals of 4 classes, 11 orders, 47 families, 92 genera and 103 species in the control of Zoysia japonica grassland, and total 1, 404 individuals of 4 classes, 11 orders, 47 families, 53 genera 65 species in the Zoysia japonica grassland fired in winter. Index of similarity of Zoysia japonica grasslands between Kimpo and Yangsuri areas was 0.51. Dominant species of arthropoda communities in Zysia japonica grasstands in Kimpo and Yangsuri areas were Hypogastnua sp. and Proisotorn sp., respectively. The spiders were 9 families and 27 species at Kimpo, and t2 families. and 44 species at Yangsuri, and their dominant species was Gnathonariurn dentaturn at two areas. Laodelphex striatelus in the Zoysia japonica grassland fired in winter was sampled constantly morning, noon and night, hut Gnatlzonariun dentatum was sampled more frequently in the morning than at night. Damage of the spiders in the Zoysia japonica granssland fired in winter was more severe than that of Laodelphcx striatelus .

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Ecological Evolution of the Spiders (거미류의 생태적 진화에 관한 연구)

  • Kim, Joo-Pil
    • The Korean Journal of Soil Zoology
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    • v.4 no.2
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    • pp.61-68
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    • 1999
  • This study reports evolution of spiders which were introduced 400 million years ago in ecological and evolutional aspects. First ecological aspects: underwater life, life of fallen leaves, the crevice of soil, underground life, life in cavern, wandering life in the surface of the earth and threading life in the air. Second evolutional aspects : a kind of the arachnids and morphological change.

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