Changes in defense of an alien plant Ambrosia artemisiifolia before and after the invasion of a native specialist enemy Ophraella communa. by Yuya Fukano, Tetsukazu Yahara

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Mentality and behavior in COVID-19 emergency status in Japan: Influence of personality, morality and ideology. by Kun Qian, Tetsukazu Yahara

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Correction: Changes in Defense of an Alien Plant before and after the Invasion of a Native Specialist Enemy. by Yuya Fukano, Tetsukazu Yahara

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Flora of Nam Kading National Protected Area I: a new species of yellow-flowered Strobilanthes (Acanthaceae), S. namkadingensis by Phetlasy Souladeth, Shuichiro Tagane, Meng Zhang, Norikazu Okabe, Tetsukazu Yahara

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GEOGRAPHIC INFORMATION SYSTEM (GIS) WEB SERVER FOR BIODIVERSITY INFORMATION SYSTEM by IBRAHIM DJAMALUDDIN, POPPY INDRAYANI, YASUHIRO MITANI, SHUICHIRO TAGANE, TETSUKAZU YAHARA

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Goniothalamus flagellistylus Tagane & V. S. Dang (Annonaceae), a new species from Mt. Hon Ba, Vietnam by Shuichiro Tagane, Son Van Dang, Tetsukazu Yahara, Hironori Toyama, Hop Tran

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 Hydrangea marunoi (Hydrangeaceae), a new species from Osumi Peninsula, southern Japan by Shuichiro Tagane, Shinji Fujii, Shun K. Hirota, Akiyo Naiki, Tetsukazu Yahara

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A new species of Quercus genus (Fagaceae) from Son Tra Peninsula, Central Vietnam by Nguyen Van Ngoc, Hoang Thi Binh, Hoang Thanh Son, Yoshihisa Suyama, Tetsukazu Yahara

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Dynamics of rumen microbiome in sika deer (Cervus nippon yakushimae) from unique subtropical ecosystem in Yakushima Island, Japan by Misaki Eto, Tetsukazu Yahara, Arika Kuroiwa, Katsunori Shioya, Gilberto E. Flores, Natsuko Hamamura

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A new subspecies of Stellaria alsine (Caryophyllaceae) from Yakushima, Japan by Tetsukazu Yahara, Shun K. Hirota, Kengo Fuse, Hiroyuki Sato, Shuichiro Tagane, Yoshihisa Suyama

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Cryptocarya kaengkrachanensis, a new species of Lauraceae from Kaeng Krachan National Park, southwest Thailand by Meng Zhang, Tetsukazu Yahara, Shuichiro Tagane, Sukid Rueangruea, Somran Suddee, Etsuko Moritsuka, Yoshihisa Suyama

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Pollinator-mediated selection on flower color, flower scent and flower morphology of Hemerocallis: evidence from genotyping individual pollen grains on the stigma. by Shun K Hirota, Kozue Nitta, Yoshihisa Suyama, Nobumitsu Kawakubo, Akiko A Yasumoto, Tetsukazu Yahara

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A new species and two new records of Quercus (Fagaceae) from northern Vietnam by Hoang Thi Binh, Nguyen Van Ngoc, Trinh Ngoc Bon, Shuichiro Tagane, Yoshihisa Suyama, Tetsukazu Yahara

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Garcinia hopii (Clusiaceae), a new species from Bidoup Nui Ba National Park, southern Vietnam by Hironori Toyama, Van-Son Dang, Shuichiro Tagane, Ngoc Van Nguyen, Akiyo Naiki, Hidetoshi Nagamasu, Tetsukazu Yahara

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Relative role of flower color and scent on pollinator attraction: experimental tests using F1 and F2 hybrids of daylily and nightlily. by Shun K Hirota, Kozue Nitta, Yuni Kim, Aya Kato, Nobumitsu Kawakubo, Akiko A Yasumoto, Tetsukazu Yahara

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Molecular phylogeny and taxonomy of Hosta (Asparagaceae) on Shikoku Island, Japan, including five new species, one new subspecies, and two new status assignments by Tetsukazu Yahara, Shun K. Hirota, Seiko Fujii, Yasushi Kokami, Kengo Fuse, Hiroyuki Sato, Shuichiro Tagane, Yoshihisa Suyama

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Molecular phylogeny and taxonomy of the Hydrangea serrata complex (Hydrangeaceae) in western Japan, including a new subspecies of H. acuminata from Yakushima by Shun K. Hirota, Tetsukazu Yahara, Kengo Fuse, Hiroyuki Sato, Shuichiro Tagane, Shinji Fujii, Tadashi Minamitani, Yoshihisa Suyama

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Morphological and molecular evidence reveals three new species of Lithocarpus (Fagaceae) from Bidoup-Nui Ba National Park, Vietnam by Nguyen Van Ngoc, Hoang Thi Binh, Ai Nagahama, Shuichiro Tagane, Hironori Toyama, Ayumi Matsuo, Yoshihisa Suyama, Tetsukazu Yahara

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A taxonomic study of Quercus langbianensis complex based on morphology and DNA barcodes of classic and next generation sequences by Hoang Thi Binh, Nguyen Van Ngoc, Shuichiro Tagane, Hironori Toyama, Keiko Mase, Chika Mitsuyuki, Joeri Sergej Strijk, Yoshihisa Suyama, Tetsukazu Yahara

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Lithocarpus vuquangensis (Fagaceae), a new species from Vu Quang National Park, Vietnam by Ngoc Nguyen Van, Hung Nguyen Viet, Binh Hoang Thi, Shuichiro Tagane, Hironori Toyama, Hoang Thanh Son, Ha Tran Viet, Tetsukazu Yahara

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