Microhabitat use and artificial-light related occurrence of the brown widow spider <i>Latrodectus geometricus</i> in a newly invaded area of the inland Kanto region, Japan
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- Katahira Hirotaka
- School of Life and Environmental Science, Azabu University
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- Sawada Yuusuke
- School of Life and Environmental Science, Azabu University
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- Onuma Kousuke
- School of Life and Environmental Science, Azabu University
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- Tsuno Seiji
- School of Life and Environmental Science, Azabu University
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- Yajima Hiroki
- School of Life and Environmental Science, Azabu University
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- Eguchi Yuya
- School of Life and Environmental Science, Azabu University
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- Tsujino Takumi
- School of Life and Environmental Science, Azabu University
Bibliographic Information
- Other Title
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- 関東内陸部の新規侵入地におけるハイイロゴケグモのマイクロハビタット利用および人工照明に関連した出現
- Microhabitat use and artificial-light related occurrence of the brown widow spider Latrodectus geometricus in a newly invaded area of the inland Kanto region, Japan
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Description
<p>The invasion of the brown widow spider into Japan was first recorded in 1995. Since then, its establishment has been recognized mainly in major port areas, but further invasions are recently found from inland areas in the Kanto region of Japan. We thus attempted to clarify the actual status of its invasion by conducting a pilot extermination in a suspected area between October 13, 2022 and January 20, 2023. A total of two males, 39 females, and 83 egg sacs were recovered from 46 nests during our extermination. The nesting sites were typically found on or inside inconspicuous part of artificial outdoor objects, especially behind plastic benches and in recesses on the outer walls of buildings. These microhabitat uses were concentrated in environments where the surroundings were lit up by street and building lights at night. Artificial lights have a function to attract phototaxis insects so that the distribution of nesting sites is likely to be affected by the availability of these potential food sources. As this species has the potential to expand its distribution far inland more, additional surveys are required to predict future invasions and ecological impact.</p>
Journal
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- Medical Entomology and Zoology
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Medical Entomology and Zoology 74 (4), 151-156, 2023-12-25
The Japan Society of Medical Entomology and Zoology
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Details 詳細情報について
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- CRID
- 1390580793844981504
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- NII Book ID
- AN00021948
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- ISSN
- 21855609
- 04247086
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- NDL BIB ID
- 033252707
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
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- Abstract License Flag
- Disallowed