• 제목/요약/키워드: Spiders

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한국산 동굴거미의 연구( I ) 한국산 동굴거미의 연구사, 조사동굴 및 거미 목록 (Studies on Cave Spiders of Korea ( I ) Historical Review and A List of Caves and Spiders)

  • 남궁준
    • 한국응용곤충학회지
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    • 제19권2호
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    • pp.113-124
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    • 1980
  • 한국 동굴거미 연구의 기저로서 지금까지의 연구경과의 개요와 조사동굴 및 확인된 동굴거미의 목록을 수록하였다. 1) 한국산 동굴거미에 대한 연구는 1961년 11월에 시작되어 약 20년이 경과한 바, 기간 39편의 논문이 10명의 저자에 의해 발표되었고, 15과 27속 29종이 보고되었으며, 16종의 신종이 기재되었으나 본격적인 조사연구는 이제부터라고 하겠다. 2) 조사된 동굴은 석탄암동굴이 121개, 용암동굴이 33개이며 이들에 대한 정확한 명칭과 소재지를 밝혀두었다. 3) 현재까지의 한국산 동굴거미로 확인된 23과 80속 85종과 독립종이 확실시되어 그 속명만을 수록한 13미확정종의 목록을 밝혔다. 아직 연구 정리되지 못한 Leptonetidae, Nesticidae, Cybaeinae, Erigonidae 중에는 분류학적이나 생태학적면에서 중요한 것들이 많이 남아 있다. 4) 해외 동굴거미와 공통되는 것은 일본산과의 25종 서구산과의 2종이 있으며 이들의 대부분은 외래성의 것이고, 진동굴성의 것은 전혀 없었다.

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논에 서식하는 거미의 조사(I) (Survey on the Spiders of the Rice Paddy Field ( I ))

  • 최성식;남궁 준
    • 한국응용곤충학회지
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    • 제15권2호
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    • pp.89-93
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    • 1976
  • 논에 서식하는 거미의 밀도를 조사하기 위해 1975년 11월 4일부터 11일 사이에 전북지방의 답작지대에서 $1m^2$의 면적내에 서식하는 거미를 채집하여 다음과 같은 결과를 얻었다. 1. 늦가을 논에 서식하는 거미의 우점종은 황갈애접시거미 (Gnathonarium dentatum), 황산적거미(Piratasubpiraticus), 혹황갈애접시거미(Gnathonarium gibberum), 등줄애접시거미(Oedothorax insecticeps)이다. 2. 단위면적$(1m^2)$당의, 평균서식밀도는 이리에서 125 마리, 진안 102마리, 부안 133마리, 대장 58마리였다. 3. 논거미로서 혹황갈애접시거미 (Gnathonarium gibberum), 착살가랑잎꼬마거미 (Enoplognatha japonica), 톱니애접시거미(Erigone prominens), 혹갈애접시거미(Erigonidium graminicola) 여덟점꼬마거미(Theridion octomaculaculatum) 들늑대거미 (Lycosa pseudoannulata), 가는줄맛거미(Dolomedes angustivirgatus) 등의 7종이 추가되어 우리나라의 논거미는 55종이 된다.

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대구의 논거미상과 그 계절적 변동에 대한 조사 (Survey on the Spider-fauna and their Seasonal Fluctuation in Paddy Fields of Taegu, Korea)

  • 백갑용;김진식
    • 한국응용곤충학회지
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    • 제12권3호
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    • pp.125-130
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    • 1973
  • To study the faunal compositiion of spiders as natural enemies of the insect pests and their seasonal fluctuation in paddy fields of Taegu, the survey was carried out 12 times between June and September. 1971. 1. The spiders collected in paddy field of Taegu during the survey period were 45 species of 30 genera of 10 families. 2. In percentage composition the spiders of the genus Pirata were most abundant. Among the other genera, the species of the genus Neoscona, Lycosa, and Marpisa were more abundant in the above-written order. 3. Pirata subpiraticus, Neoscona doenitzi, Lycosa sp., Pardosa T-insignita and Marpisa magister were the 5 major species of abundant spiders. 4. Comparing the spider-fauna of the paddy field of Korea with that of Japan, Taiwan and Thailand, 2 species of 2 genera of the family Gnaphosidae were found in Korea only The abundant and common species It·ere deeply different each other. 5. Pirata subpiraticus, Lycosa sp. and Pardosa T-insignita appeared abundantly between June and July while Neoscona doenitzi and Marpisa magister were few in these periods. But no Pirata subpiraticus, Lycosa sp. and Pardosa T-insignita appeared in August while Neoscona doenitzi and Marpisa magister were abundant in this period. Then, in September as between June and July, Pirata subpiraticus, Lycosa sp. and Pardosa Tinsignita were abundant while Neoscona doenitzi and Marpisa magister decreased.

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Microstructural Organization of the Central Nervous System in the Orb-Web Spider Araneus ventricosus (Araneae: Araneidae)

  • Park, Yong-Ki;Moon, Myung-Jin
    • Applied Microscopy
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    • 제43권2호
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    • pp.65-74
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    • 2013
  • Although the geometrical difference in body position between web-building and wandering spiders could affect the organization of their central nervous system (CNS), however most of our informations about spider's CNS are dependent on those revealed from the wandering spiders. Therefore, this paper describes microstructural organizations of the CNS in the geometric orb-web spider Araneus ventricosus. Similarly to other wandering spiders, the CNS of A. ventricosus is also consisted of a dorsal supraesophageal ganglion and a ventral subesophageal mass. The supraesophageal ganglia are fused together and made up of a large sized nerve cell clusters, whereas the subesophageal ganglia are made up of the foremost part of the ventral nerve cord. It has been revealed that the only nerve arising from the supraesophageal mass was the optic nerve which connected with four pairs of eyes, whereas a pair of pedipalpal and four pairs of appendage nerves including abdominal nerve pairs were arisen from the subesophageal nerve mass. Fibrous masses are highly organized into longitudinal and transverse tracts, and are only consisted of processes of neurons and the terminal ramnifications of peripheral sensory neurons. In addition, central fibrous mass of both the brain and the subesophageal mass are totally devoid of nerve cell bodies.

Individual physical variables involved in the stabilimentum decoration in the wasp spider, Argiope bruennichi

  • Kim, Kil Won
    • Journal of Ecology and Environment
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    • 제38권2호
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    • pp.157-162
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    • 2015
  • The physical factors of Argiope bruennichi (Araneae, Araneidae) that influence the stabilimentum decoration on the web, a conspicuous white silk structure reflecting much more ultraviolet light than other spider silks in the web, have been poorly understood. In this study, individual variables involved in decorating the webs with stabilimenta by A. bruennichi were examined. The results revealed that the physical condition of the female A. bruennichi affected the behaviors of the stabilimentum decoration on the web. Among the 82 female spiders building their webs, the 49 female spiders adding upper and lower stabilimenta on their web weighed less, and had a narrower cephalothorax and shorter abdomen than the 33 female spiders that did not use stabilimentum. The heavier females decorated their webs with stabilimentum of greater widths. There were also significant positive relationships between the stabilimentum area and the female spider's cephalothorax width, and between the stabilimentum area and female spider's abdomen length. Taken together, this study suggests that spiders allocate their resources in stabilimentum decoration as a functional response to the spider's physical conditions, and also supports the "prey-attraction hypothesis," which states that the use of stabilimentum increases the foraging success by attracting more prey to the web.

Microstructure of the Silk Spinning Nozzles in the Lynx Spider, Oxyopes licenti (Araneae: Oxyopidae)

  • Moon, Myung-Jin
    • Animal cells and systems
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    • 제10권2호
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    • pp.85-91
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    • 2006
  • The lynx spiders are free wandering spiders with long spines on their legs. They do not build web, but hunt small insects on plants. In spite of the facts that the wandering spiders do not produce webs for prey-catching, they also have silk apparatuses even though the functions are not fully defined. This paper describes the microstructural organization of the silk-spinning nozzles and its silk glands of the lynx spider, Oxyopes licenti, revealed by the field emission scanning electron microscope (FESEM). The silkspinning nozzles of this spider were identified as three groups: ampullate, pyriform and aciniform glands. Each group of silk gland feed silk into one of the three pairs of spinnerets. Two pairs of major ampullate glands send secretory ductules to the anterior spinnerets, and another two pair of minor ampullate glands supply the middle spinnerets. In addition, the pyriform glands feed silk into the anterior spinnerets (25-30 pairs in females and 24-40 pairs in males), and the aciniform glands send ductules to the middle (9-12 pairs in females and 7-11 pairs in males) and the posterior spinnerets (16-20 pairs in females and 16-17 pairs in males). Among these, the ampullate one is the most predominate gland in both sexes. However the flagelliform and the aggregate glands which had the functions of cocoon production or adhesive thread production in other webbuilding spiders were not observed at both sexes of this spider.

Four New Records of the Orb-Weaver Spiders (Araneae: Araneidae) from Korea

  • Lee, Jun-Gi;Lee, Jun-Ho;Park, Sun-Jae;Baek, Min-Jeong;Kim, Sam-Kyu
    • Animal Systematics, Evolution and Diversity
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    • 제38권2호
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    • pp.69-82
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    • 2022
  • The family Araneidae is a group of orb-weaving spiders and is one of the most diverse groups among the order Araneae. Eighty-one species belonging to 25 genera have been recorded in Korea to date. In this study, four araneid spiders in three genera, viz., Araneus mayumiae, Araneus ogatai, Cyclosa onoi, and Plebs baotianmanensis, were discovered for the first time in Korea. Additionally, Plebs yebongsanensis is removed from synonymy of Plebs sachalinensis, and treated as a new junior synonym of P. baotianmanensis, based on a morphological comparison of females of three Plebs species. Detailed descriptions of four species are provided with accompanying photographs.