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Published Papers 【 display / non-display 】

• Evolution of a non-flying mammal-dependent pollination system in Asian Mucuna (Fabaceae)

  Kobayashi S.

  Plant Biology ( Wiley )    2023.07 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• Quantitative chemical analysis of defensive secretion of Megacrania tsudai (Phasmatidae) and effect of actinidine on its potential predators

  Kobayashi S., Arimitsu S., Takaoka C., Ono T., Izawa M.

  Journal of Chemical Ecology     2023.06 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• First record of the pill cockroach Perisphaerus pygmaeus Karny, 1915 (Blattodea: Blaberidae) from Zamamijima Island in the Ryukyu Archipelago, Japan

  Kobayashi S.

  Biological Magazine, Okinawa ( Biological Society of Okinawa )  61   65 - 68   2023.03 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

• A record of predation of a juvenile Ryukyu long-furred rat Diplothrix legata (Muridae: Rodentia) by a jungle crow Corvus macrorhynchos (Corvidae: Passeriformes) and related nest movement

  Higashi T., Kobayashi S.

  Mammal Study ( The Mammal Society of Japan )  48 ( 2 )   2023.03 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  The Ryukyu long-furred rat Diplothrix legata is endemic to the central Ryukyus and is the largest arboreal murid in Japan. This species is listed as ‘Endangered’ in the IUCN Red List. Invasive mammalian carnivores have been recorded as predators of this species; however, information on native predators is limited. We observed a juvenile Ryukyu long-furred rat caught by a jungle crow Corvus macrorhynchos connectens in a nesting tree cavity. Our observations suggest that jungle crows may be among the top predators in this area. On the same night on which the predation was observed, adult Ryukyu long-furred rats carried juveniles away from the tree cavity. It is possible that the adult individual left their nest and moved to other sites to avoid further predation.

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• Food Habits of the Taiwan Beauty Snake, Elaphe taeniura friesi, as an Introduced Species on Okinawajima Island

  Asato H.

  Ｃｕｒｒｅｎｔ　ｈｅｒｐｅｔｏｌｏｇｙ ( 日本爬虫両棲類学会 )  41 ( 2 ) 205 - 214   2022.08 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  <p>The Taiwan beauty snake, <i>Elaphe taeniura friesi</i>, has established a stable population in the central part of Okinawajima Island, and there are concerns about the negative effects of the snakes’ predation on the native fauna. Thus, we examined the stomachs of 239 <i>E. t. friesi</i> specimens collected on Okinawajima Island from July 2018 to November 2019. Stomach contents were identified to the species level whenever possible based on morphological observations and/or DNA analyses. Of the 239 snake specimens, 39 (12 males, 16 females, and 11 juveniles) had contents in their stomach, including 67 prey items, 75% of which were mammals (Muridae and Soricidae) and the rest of which were birds (Pycnonotidae, Cisticolidae, and Columbidae). <i>Rattus rattus</i> occurred most frequently; 25 of the 39 snakes examined had this species in their stomachs. All avian prey items detected were nestlings and eggs. Twelve snakes had multiple prey items in their stomach, including in most cases either nestlings of passerine birds or infants or subadults of <i>R. rattus</i>. Therefore, <i>E. t. friesi</i> is an endotherm consumer that occasionally preys on nestlings and infant rats. These food habits suggested that <i>E. t. friesi</i> uses various habitats, from the humus layer on the ground to the branches of trees, for foraging. Several endangered endemic rodent and bird species exist in the northern area of Okinawajima Island; thus, our results provide a warning about potential negative impact on such animals when <i>E. t. friesi</i> expands its range to the northern part of the island.</p>

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Other Papers 【 display / non-display 】

Other Papers 【 display / non-display 】

• Seawater tolerance of eggs and ecology of the stick insects

  Kobayashi S.

  The Nature and Insects   58 ( 3 ) 15 - 20   2023.03

   

• Educational program as prevention measures of poaching of endangered turtles in the Ryukyu Archipelago ―Executive Committee of Symposium on Poaching of Endangered Turtles in Ryukyu Archipelago―

  IZAWA Masako, DENDA Tetsuo, TAMASHIRO Ayumu, KOBAYASHI Shun

  Annual Report of Pro Natura Foundation Japan ( Pro Natura Foundation Japan )  29 ( 0 ) 394 - 398   2020

   

  DOI CiNii Research

• Non-flying mammal pollination in Asia

  Kobayashi Shun

  Honyurui Kagaku (Mammalian Science) ( The Mammal Society of Japan )  60 ( 2 ) 385 - 389   2020

   

  DOI CiNii Research

• A report on the 3rd International Southeast Asian Bat Conference

  Kobayashi Shun

  Honyurui Kagaku (Mammalian Science) ( The Mammal Society of Japan )  55 ( 2 ) 323 - 325   2015

   

  DOI CiNii Research

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• 2024.02

  　

  　

  

• 2023.12

  　

  　

  

• 2023.06

  　

  　

  

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• ツダナナフシの防御行動に関する報道  Newspaper, magazine

  沖縄タイムス  社会面  2023.9

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  ツダナナフシの防御行動に関する論文賞受賞と研究内容が掲載された。