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Current Affiliation Organization 【 display / non-display 】

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Affiliated academic organizations 【 display / non-display 】

Research Interests 【 display / non-display 】

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Acquisition of a qualification 【 display / non-display 】

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Published Papers 【 display / non-display 】

Published Papers 【 display / non-display 】

• Distribution of alien Sphagneticola trilobata (Asteraceae) on Iriomotejima Island, Okinawa, Japan

  Akiyo Naiki, Takenori Yamamoto, Shinya Imura, Shin Watanabe

  The biological magazine Okinawa ( Okinawa Biological Society )  64   91 - 99   2026.03 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

• Chromosome Numbers of Two Japanese Antrophyum, A. obovatum and A. formosanum (Pteridaceae, Polypodiales)

  Tao Fujiwara, Katsuhiro Yoneoka, Takenori Yamamoto, Akiyo Naiki

  The Journal of Japanese Botany   101 ( 1 )   2026.02 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

  　View Summary

  Cytological observation was conducted for the first time on Japanese Antrophyum (Pteridaceae), namely A. obovatum and A. formosanum. The chromosome numbers of the two species were counted as 2n = 240 for the former and 2n = ca. 240 for the latter. Considering the basic chromosome number is x = 30, they are considered as octoploid species. The chromosome numbers, 2n = 240, are first reported for them. Our study demonstrated the pervasiveness of polyploidy in the genus.

• Phylogenetic Relationships of Eurya (Pentaphylacaceae) with a Focus on Japanese Species

  Tetsuo OHI-TOMA, Emiko OGURI, Harue ABE, Hidetoshi KATO, Masaharu AMANO, Mong-Huai SU, Hanghui KONG, Hidetoshi NAGAMASU, Akiyo NAIKI

  The Journal of Japanese Botany   100 ( 5 ) 373 - 384   2025.10 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

• New record of alien Melothria pendula from Iriomotejima Island, Okinawa, Japan

  Akiyo Naiki

  The Biological Magazine Okinawa ( The Biological Society of Okinawa )  63   89 - 92   2025.03 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

  　View Summary

  An alien plant, Melothria pendula L., native to northeastern to southern parts of the U.S.A. and Central and South America, was found growing on the side of a farm road in the northern part of Iriomotejima Island, Okinawa, Japan. Since this species may cover other plants and inhibit their growth, it is necessary to monitor its distribution on the island.

• Two new species and one new addition of Lasianthus (Rubiaceae) for the flora of Vietnam

  VAN-SON DANG, TUAN ANH LE, THANH SON HOANG, VAN SON LE, VAN BAC HA, QUOC TRONG PHAM, SOULADETH PHETLASY, SHUICHIRO TAGANE, AKIYO NAIKI

  Phytotaxa     2025.03 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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Books 【 display / non-display 】

Books 【 display / non-display 】

• A Picture Guide for the Flora of Bidoup-Nui Ba National Park I: Mt. Langbian

  Ai Nagahama, Shuichiro Tagane, Nguyen Van Ngoc, Hoang Thi Binh, Truong Quang Cuong, Hironori Toyama, Hidetoshi Nagamasu, Kojin Tsuchiya, Zhang Meng, Yoshihisa Suyama, Etsuko Moritsuka, Nguyen Thi Anh Thu, Nguyen Cuong Thinh, Ayumi Matsuo, Shun Hirota, Akiyo Naiki, Le Van Son, Pham Huu Nhan, Tetsukazu Yahara ( Part: Multiple Authorship )

  Kyushu University Press  2019.02

• A Picture guide of forest plants in Gunung Gede Pangrango National Park, Indonesia

  Tagane Shuichiro, Toyama Hironori, 内貴 章世, 永益 英敏, 矢原 徹一, Darnaedi Dedy, Dja-maluddin Ibrahim, Ardiyani Marlina, Hidayat Arief, Ashari Ahmad Jaeni, Ichihashi Ryuji ( Part: Multiple Authorship )

  Kyushu University Press  2018

• Wild Flowers of Japan 4

  Koji Yonekura, Hiroyoshi Ohashi, Akiyo Naiki et al. ( Part: Multiple Authorship ,  Rubiaceae )

  Heibonsha  2017.03

• A picture guide of forest trees in Cambodia v. 4

  Tagane, S, Toyama H, Fuse K, Chhang P., Naiki, A. Nagamasu, H, Yahara, T ( Part: Multiple Authorship )

  Kyushu University Press  2017.02

• A list of vascular plant specimens of Nara Prefecture in the herbarium of the Osaka Museum of Natural History

  Akiyo Naiki, Kiyoshi Matsui, Shinji Fujii, Ko Seto ( Part: Multiple Authorship )

  Osaka Museum of Natural History  2010.03

Other Papers 【 display / non-display 】

Other Papers 【 display / non-display 】

• Regeneration environment and disturbance for juveniles by tree species in the subtropical forest of Iriomote Island.

  指村奈穂子, 古本良, 内貴章世

  日本生態学会大会講演要旨(Web)   72nd   2025

   

  J-GLOBAL

• Differences in the habitats of Symplocos konishii, S. cochinchinensis and S. theophrastifolia, and discussion of their speciation.

  指村奈穂子, 内貴章世, 澤田佳宏, 古本良, 横川昌史

  日本生態学会大会講演要旨(Web)   71st   2024

   

  J-GLOBAL

• Effect of fruit dimorphism on gene flow in the coastal shrub Scaevola taccada

  栄村奈緒子, 古本良, 村中智明, 岩崎貴也, 永野惇, 永野惇, 傳田哲郎, 内貴章世, 梶田忠, 本庄三恵, 井鷺裕司, 工藤洋

  日本生態学会大会講演要旨(Web)   71st   2024

   

  J-GLOBAL

• Factors affecting the temporal dynamics and distribution of Asplenium in wetland forest of Iriomote island

  丸山夏鈴, 内貴章世, 井上哉太, 齋藤敦, 中辻宏平, 吉田智弘

  日本生態学会大会講演要旨(Web)   71st   2024

   

  J-GLOBAL

• Habitat of rare wetland plants in Iriomote Island

  高岸慧, 宮本太, 内貴章世

  日本生態学会大会講演要旨(Web)   71st   2024

   

  J-GLOBAL

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Academic Awards 【 display / non-display 】

Academic Awards 【 display / non-display 】

• 12th Best Paper Award

  2018.03   Japanese Society for Plant Systematics   Morphological and Molecular Phylogenetic Analyses of Geranium yesoense (Geraniaceae) in Japan

  Winner: Wakasugi Y, H. Azuma, A. Naiki, S. Nishida

Grant-in-Aid for Scientific Research 【 display / non-display 】

Grant-in-Aid for Scientific Research 【 display / non-display 】

• Examining the impact of typhoon disturbance on plant species diversity in a wet subtropical forest using a 3D canopy model.

  Grant-in-Aid for Scientific Research(C)

  Project Year: 2023.04  -  2026.03 

  Direct: 3,600,000 (YEN)  Overheads: 4,680,000 (YEN)  Total: 1,080,000 (YEN)

• Examining the impact of typhoon disturbance on plant species diversity in a wet subtropical forest using a 3D canopy model.

  Grant-in-Aid for Scientific Research(C)

  Project Year: 2023.04  -  2026.03 

  Direct: 3,600,000 (YEN)  Overheads: 4,680,000 (YEN)  Total: 1,080,000 (YEN)

• Examining the impact of typhoon disturbance on plant species diversity in a wet subtropical forest using a 3D canopy model.

  Grant-in-Aid for Scientific Research(C)

  Project Year: 2023.04  -  2026.03 

  Direct: 3,600,000 (YEN)  Overheads: 4,680,000 (YEN)  Total: 1,080,000 (YEN)

• Grant-in-Aid for Scientific Research(C)

  Project Year: 2021.04  -  2024.03 

  Direct: 3,200,000 (YEN)  Overheads: 4,160,000 (YEN)  Total: 960,000 (YEN)

• Grant-in-Aid for Scientific Research(C)

  Project Year: 2019.04  -  2022.03 

  Direct: 3,300,000 (YEN)  Overheads: 990,000 (YEN)  Total: 4,290,000 (YEN)

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Other External funds 【 display / non-display 】

Other External funds 【 display / non-display 】

• Project Year: 2020.04  -  2023.03 

  Offer Organization: Environmental　Restoration　and　Conservation　Agency (ERCA)

SDGs 【 display / non-display 】

SDGs 【 display / non-display 】

Social Activity 【 display / non-display 】

Social Activity 【 display / non-display 】

• 2023.11

  　

  　

  

• 2023.09

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  2025.06