KAWAKUBO Nobumitsu

J-GLOBAL         Last updated: Jul 2, 2019 at 02:42
KAWAKUBO Nobumitsu
Gifu University
Faculty of Applied Biological Sciences
Doctor of Science(Tokyo Metropolitan University), Master of Science(Tokyo Metropolitan University)

Research Areas


Academic & Professional Experience

Associate Professor, Faculty of Education, Kagoshima University
- Associate Professor, Faculty of Agriculture, Gifu University
Associate Professor, Faculty of Liberal Arts, Gifu University
Research Assistant, Faculty of Science, Kagoshima University


Graduate School, Division of Natural Science, Tokyo Metropolitan University
Faculty of Agriculture, Shinshu University

Published Papers

Jahir Raihan, Nobumitsu Kawakubo
Plant Species Biology   29 212-215   Jan 2014
To observe temporal changes in the nectar volume of Impatiens flowers, we modified and used an interval-shooting camera with a special flash system. Former methods of measuring nectar volume inevitably necessitated destruction or damage of the flo...
Jahir Raihan, Nobumitsu Kawakubo
Plant Species Biology   29 281-286   Jan 2014
To clarify if bumblebees can recognize nectar through its scent in Impatiens textori flowers, we examined the behavior of Bombus diversus on nectarless flowers in which the spurs had been artificially removed. Bumblebee visits to both natural flow...
Moe Imoto, Shuichi Miyagawa, Alexandra Von Fragstein, Nobumitsu Kawakubo, Shogo Kato, Atsushi Iwasawa
Nihon Ringakkai Shi/Journal of the Japanese Forestry Society   96 36-42   Jan 2014
This paper reports how a German forest kindergarten utilizes the space and resources of a local forest. Parents of kindergarten children and other local residents of the city of Bensheim, the state of Hesse were surveyed regarding their uses of th...
Masako Mishio, Nobumitsu Kawakubo, Naoki Kachi
Plant Species Biology   22 117-124   Aug 2007
Boninia grisea is a woody species comprising two varieties that have adapted to habitats with different wind conditions. Boninia grisea var. grisea is a tree occurring in forests on mountain slopes, whereas B. grisea var. crassifolia is a shrub oc...
Taku Kadoya, Akio Takenaka, Fumiko Ishihama, Taku Fujita, Makoto Ogawa, Teruo Katsuyama, Yasuro Kadono, Nobumitsu Kawakubo, Shunsuke Serizawa, Hideki Takahashi, Masayuki Takamiya, Shinji Fujii, Hiroyuki Matsuda, Kazuo Muneda, Masatsugu Yokota, Koji Yonekura, Tetsukazu Yahara
PLoS ONE   9    2014
Although many people have expressed alarm that we are witnessing a mass extinction, few projections have been quantified, owing to limited availability of time-series data on threatened organisms, especially plants. To quantify the risk of extinct...
Chaisit Thongjoo, Shuichi Miyagawa, Nobumitsu Kawakubo
Plant Production Science   8 475-481   Dec 2005
The effect of soil moisture and temperature on decomposition of waste materials, bagasse, coir dust, rice chaff and rice straw, in soil were examined by measuring the decrease in weight of and CO2 generation from each waste material. The rate of t...
M. Mishio, N. Kawakubo
Japanese Journal of Ecology   50 93-98   Jan 2000
Comparison of shoot phenology between C3 and C4 grasses growing in open sites in lowland Gifu revealed contrasting phenology in xeric (or mesic) habitats. C3 species were evergreen or winter-green and flowered mainly in spring, whereas C4 species ...
Red list of Japanese vascular plants: summary of methods and results
Yahara T, Kato T, Inoue K, Yokota M, Kadono Y, et al.
Proc. Jap. Soc. Pl. Tax.   13(2) 89-96   Apr 1998
Ramet production by Mallotus japonicus, a common pioneer tree in temperate Japan(共著)
J. Plant Res.   111 459-462   1998
Male sterility and gynodioecy in Japanese Cirsium
Nobumitsu Kawakubo
Acta Phytotax. Geobot.   46(2) 153-164   1995   [Refereed]
N. Kawakubo
Annals of Botany   74 357-364   Jan 1994
Ryota L. Sakamoto, Motomi Ito, Nobumitsu Kawakubo
PLoS ONE   7    2012
A diverse assemblage of pollinators, such as bees, beetles, flies, and butterflies, will often visit a single plant species. However, evaluating the effect of several insects on fruit and seed production is difficult in plants visited by a variety...
Alice Afrakomah Amoah, Shuichi Miyagawa, Nobumitsu Kawakubo
Plant Production Science   15 109-117   2011
With the renewed interest in mixed cropping and the increasing awareness of environmental degradation arising from high chemical inputs, this experiment was conducted to assess the effect of supplementing inorganic with an organic fertilizer on th...
Masako Mishio, Nobumitsu Kawakubo
Plant Species Biology   30 147-158   2014
© 2014 The Society for the Study of Species Biology. Eurya japonica occurs in diverse light environments through seed dispersal by birds. As the seed size is extremely small, we hypothesized that newly germinated seedlings with restricted depth of...
Ryota L. Sakamoto, Shin Ichi Morinaga, Motomi Ito, Nobumitsu Kawakubo
Behavioral Ecology and Sociobiology   66 669-674   2012
Most estimations of the pollination efficiency of insects have been based on observation by the naked human eye. However, insect behaviors are often too rapid to analyze sufficiently this way. Here we demonstrate the use of high-speed cameras to a...
Shuichi Miyagawa, Yusaku Koyama, Mika Kokubo, Yuichi Matsushita, Yoshinao Adachi, Sengdeaune Sivilay, Nobumitsu Kawakubo, Shinya Oba
Journal of Ethnobiology and Ethnomedicine   7    2011
The objective of this study was to investigate the indigenous utilization of termite mounds and termites in a rain-fed rice growing village in the central plain of Laos, where rice production is low and varies year-to-year, and to assess the possi...
Shogo Kato, Kazuya Hosoi, Kazuya Hosoi, Nobumitsu Kawakubo, Akira Komiyama
Nihon Ringakkai Shi/Journal of the Japanese Forestry Society   93 123-128   2011
We analyzed the relationships between the growth direction of creeping shoot in Japanese ivy( Hedera rhombea) and the light conditions experimentally. As a result, the creeping shoots( ≥10 mm in length) of the ivy clearly showed negative phototrop...
Shun K. Hirota, Kozue Nitta, Yoshihisa Suyama, Nobumitsu Kawakubo, Akiko A. Yasumoto, Tetsukazu Yahara
PLoS ONE   8    2013
To trace the fate of individual pollen grains through pollination processes, we determined genotypes of single pollen grains deposited on Hemerocallis stigmas in an experimental mixed-species array. Hemerocallis fulva, pollinated by butterflies, h...
Masako Mishio, Nobumitsu Kawakubo
Journal of Plant Research   111 459-462   1998
To clarify the characteristics of clonal growth of Mallotus japonicus, we excavated all roots of this species in a plot and ascertained the connections between shoots. All shoots examined were ramets that originated from roots. Young ramets grew i...
Shun K. Hirota, Kozue Nitta, Yuni Kim, Aya Kato, Nobumitsu Kawakubo, Akiko A. Yasumoto, Tetsukazu Yahara
PLoS ONE   7    2012
The daylily (Hemerocallis fulva) and nightlily (H. citrina) are typical examples of a butterfly-pollination system and a hawkmoth-pollination system, respectively. H. fulva has diurnal, reddish or orange-colored flowers and is mainly pollinated by...
Shogo Kato, Takashi Yamamoto, Nobumitsu Kawakubo, Akira Komiyama
Ecological Research   27 229-231   2012
We recorded the growth of 24 seedlings of Trachelospermum asiaticum, a root climber, placed between a light source and a wall. Shoot length of seedlings planted at the brightest points nearly matched the distance the shoot tips moved toward the wa...
Chaisit Thongjoo, Shuichi Miyagawa, Nobumitsu Kawakubo
Plant Production Science   9 106-114   2006
Productivity of the soil with waste material (WM), i.e., bagasse, coir dust, rice chaff and rice straw decomposed for two months at various temperatures and soil moisture were investigated by analyzing the chemical properties and growth of maize c...
Geographical distribution of the flowering plants on the Tokara Islands
Nobumitsu Kawakubo, Masako Mishio
2(2) 145-161   1994   [Refereed]
Geographical distribution of the flowering plants on the Tokara Islands(共著)
Nobumitsu Kawakubo
WWF Japan Science Report   2(2) 145-161   1994
Dioecism of the genus Callicarpa (Verbenaceae) in the Bonin (Ogasawara) Islands
Nobumitsu Kawakubo
The Botanical Magazine Tokyo   103    1990   [Refereed]
Morphological variation of three endemic species of Callicarpa (Verbenaceae) in the Bonin Islands
Nobumitsu Kawakubo
Plant Species Biology   1    1986   [Refereed]
Present situation of endangered species in the Bonin (Ogasawara) Islands
Ono, M., Kobayashi,S.& Kawakubo, N.
Ogasawara Research   12    1986


Diversity of Nonspecific Relationships between Plants and Ants(共著)
19th International Plant Biology Symposium, The Catholic Univ. of Korea   138-145   2001
How to make friends in the flowering plants
In : T. Yumoto and T. Matsubara eds., Yakushima, International Field Biology Course(IFBC)   12-15   1999

Books etc

矢原 徹一, 川窪伸光編著
全ページ編集分担著   2002   ISBN:0
川窪 伸光 (Part:Joint Work, 229pp全編集分担著)
文一総合出版・種生物学会   Jan 2000   
Evolution and Speciation of Island Plants
Nobumitsu Kawakubo (Part:Joint Work, 115-168)
Cambridge Univ. Press   Apr 1998   
Biosystematic studies of the endemic species of Callicarpa(Verbenaceae)in the Bonin(Ogasawara)Islands.
Tokyo Metropolitan Univ.,   1988   
Alpine Botany
KAWAKUBO Nobumitsu (Part:Joint Work)

Conference Activities & Talks

第15回 国際植物学会議 横浜
Aug 1993   

Research Grants & Projects

Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(挑戦的萌芽研究)
Project Year: 2011 - 2013    Investigator(s): Kawakubo NOBUMITSU
To understand the adaptive strategy of flowering plants against rainfall-damages, I observed the flowering behaviors of various plants before and after rainfall. Many plants closed their flowers under rainfall. Some species closed their flowers ...
Evolution of sex expression in flowering plants
Evolution of plant-animal interaction
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Project Year: 2011 - 2013
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Project Year: 2014 - 2016