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The International Priority Graduate Programs (IPGP) seminar was held

Our graduate school has conducted the International Priority Graduate Programs (IGBP) supported by the MEXT (Ministry of Education, Culture, Sports, Science and Technology, Japan) since 2015. This program provides excellent foreign students with a good opportunity to learn and research environmental sciences in Japan, as well as with a scholarship and other supports. To date, a total of 12 graduate students were enrolled at master's or doctoral courses of our graduate school through this program (including the Top Global University Project). On December 27, the IGBP seminar, in which second-year graduate students present their research progresses, was held at our graduate school. The graduate students and faculty members enjoyed a lively discussion.



[Press Release] Immigrating into a once-dried stream in winter: implications for river management for fishes

A research team of Assoc. Prof. Itsuro Koizumi and his graduate students (Division of Biosphere Science) revealed that, in winter, more than 10,000 juvenile fishes that include species not only with high swimming ability (Japanese dace and non-native rainbow trout) but also with low swimming ability (Siberian stone loach) immigrated to a small stream that had once dried up in summer. This result suggests that apparently negligible stream may provide critical overwintering habitats for some fishes. This research outcome is published in Ichthyological Research, an academic journal of the Ichthyological Society of Japan.

Please visit links below to view the press release (Japanese version only).
Research Press Release (PDF)

[Press Release] Physicochemical properties of bottom ice from Dome Fuji, inland East Antarctica

A research team led by Assist. Prof. Yoshinori Iizuka (Division of Earth System Science) and researchers of Kitami Institute of Technology and the National Institute of Polar Research revealed physicochemical properties of bottom ice from Dome Fuji, inland East Antarctica. This research outcome was published in Journal of Geophysical Research: Earth Surface (Volume 121, Issue 7), and this paper was also selected as the cover image for the issue of the journal.

Please visit links below to view the press release (Japanese version only).
Research Press Release (PDF)

[Press Release] The house shrews’ intraspecific phylogeny suggesting a history of human activities

The house shrews, Suncus murinus-S. montanus species complex, are tiny mammals that often live in a human’s house, and thus their distributions are considered to be closely associated with a history of human activities. An international team of eight countries’ researchers that include Assist. Prof. Satoshi D. Ohdachi and Prof. Hitoshi Suzuki (Division of Biosphere Science) analyzed a mitochondrial DNA region of the house shrews captured from east African coasts to Japan, and revealed the shrews’ intraspecific phylogeny. Results from a phylogenetic tree suggest that the present distribution of the house shrews is due to past human activities such as migration and economic exchange. This research outcome is published in Mammal Study, an academic journal of the Mammal Society of Japan.

Please visit links below to view the press release (Japanese version only).
Research Press Release (PDF)

Course Feedback Survey Results for the 2015 academic year

Here are the results of feedback surveys about the courses conducted in the 2015 academic year.
・Evaluation and comments (only in Japanese)
・Survey Summary (only in Japanese)

[Press Release] Winter aggregation of nonnative rainbow trout in small tributaries: implications for effective control

A research team of Assoc. Prof. Itsuro Koizumi and his graduate students (Division of Biosphere Science) revealed that rainbow trout, one of “100 of the World's Worst Invasive Alien Species”, immigrated to and extremely aggregated in small tributaries of the Otofuke River, central Hokkaido during the winter. This study has an important implication for effective control of this invasive fish and helps to understand a mechanism of adaptation to a new environment. This research outcome is published in Ichthyological Research, an academic journal of the Ichthyological Society of Japan.

Please visit links below to view the press release (Japanese version only).
Research Press Release (PDF)

[Press Release] Revealing activity patterns of representative mammals of Hokkaido by infrared cameras

A research team that includes a JSPS Research Fellow Takashi Ikeda, currently a research officer at National Institute for Land and Infrastructure Management, Assoc. Prof. Itsuro Koizumi, and a Ph.D. student Kenta Uchida (Division of Biosphere Science) revealed seasonal and diel activity patterns of representative mammals of Hokkaido such as brown bear, Ezo sika deer, Ezo red fox, and Eurasian red squirrel by using a huge amount of photographic data (total 13,279 photos!) taken by infrared cameras. This study provides a fundamental knowledge of these mammals’ ecologies and has an important implication for wildlife management.

This research outcome is published as a research article of an open-access scientific journal, PLoS One.

Please visit the links below to view the press release (Japanese version only).
Research Press Release (PDF)

A patent owned by Assoc. Prof. Toshikazu Kawaguchi et al. was selected for the Minister of MEXT Award

A patent owned by Assoc. Prof. Toshikazu Kawaguchi, Section of Materials Science, and his co-inventors was selected for the Minister of Education, Education, Culture, Sports, Science and Technology (MEXT) Award in Hokkaido region by Japan Institute of Invention and Innovation.

Name of the patent recognized:
自己組織化法によるフッ素成膜 (Patent No.5857145)

Please refer to the following URL for more details:
http://koueki.jiii.or.jp/hyosho/chihatsu/H28/jusho_hokkaido/index.html

[Press Release] Origins of two hemiclonal hybrids among three greenling fishes

A research team of Assoc. Prof. Hiroyuki Munehara (Usujiri Fisheries Station), with our graduate school’s students, clarified the origin and diversification of two greenling (fishes of the genus Hexagrammos) hybrids and the maternal parent species (H. octogrammus) using maternal inheritance markers. This research outcome is published as an original research of a scientific journal, Ecology and Evolution.

Please visit links below to view the press release (Japanese version only).
Research Press Release (PDF)

Graduate School of Environmental Sceince, Hokkaido University