最新エントリー

[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)

Yasuyo Tsuji (Doctoral Course) won the Plankton Society of Japan Excellent Student Presentation Prize

Yasuyo Tsuji, 3rd grade of Doctoral Course in the Division of Biosphere Science, won the Excellent Student Presentation Prize at the Joint Meeting of the Plankton Society of Japan and Japanese Association of Benthology held at Prefectural University of Kumamoto from September 7th to 10th. This is the 3rd consecutive win for her!

The 2nd Matsuno Environmental Science Award recipients

We are pleased to announce that the following 4 recipients have been selected as recipients of the 2nd Matsuno Environmental Science Award. Please visit links below to view abstracts. Full-text papers are available for those with Hokkaido University Repository HUSCAP registration.

Md. Tajuddin Sikder
【Reasons for selection (PDF in Japanese)】
【Abstract】
【Full text (HUSCAP)】

Kazuki Nakata
【Reasons for selection (PDF in Japanese)】
【Abstract】

Hiroki Gotoh
【Reasons for selection (PDF in Japanese)】
【Abstract】
【Full text (HUSCAP)】

Naoto Fukunaga
【Reasons for selection (PDF in Japanese)】
【Abstract】

Award recipients will be recognized at a ceremony at 2 p.m. on September 23rd, at the Graduate School of Environmental Science Homecoming Day event (Please refer to Homecoming Day 2016 for more details). Dr. Sikder, Dr. Gotoh, and Dr. Fukunaga will also have speeches at the Homecoming Day event and tell you their experience, research, and days in school. Please join us!

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Graduate School of Environmental Science established the Matsuno Environmental Science Award last year. This award recognizes outstanding research conducted by enrolled students, alumni, and alumnae of the Graduate School of Environmental Science.
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Professor Masashi Ohara appears on a radio show at 18:30 on Sunday, August 21st on FM AIR-G'

"Hokkaido Takarajima" is a Sunday evening talk show on FM Hokkaido (AIR-G') and the show is featuring Hokkaido University this month, in August. Our president Yamaguchi was interviewed in the first show aired on August 7th. Professor Masashi Ohara, Division of Biosphere Science, will be in the show at 18:30 on Sunday, August 21st, talking about "Elm forests and Trillium camschatcense." (Recorded)

The Elm means Japanese elm, which you can see many rows of on campus. Trillium camschatcense is a flower from which the motif of Hokkaido University's badge was originated. Professor Ohara has been conducting research on ecology and conservation of Trillium (Ohara laboratory HP).

On-air schedule:
18:30-18:55, Sunday, August 21st
Hokkaido Takarajima on FM Hokkaido (AIR-G')
Talk Theme: Elm forests and Trillium camschatcense


Professor Ohara at recording studio

Professor Masashi Ohara selected for Hokkaido University Commendation for Excellent Teaching 4 years in a row

Institute for the Advancement of Higher Education selects Hokkaido University Commendation for Excellent Teaching recipients every year based on students’ feedback on the General Education Courses.

Thirty commendation recipients were selected based on the students’ feedback conducted last year. Professor Masahi Ohara, Division of Biosphere Science, was selected as one of the commendation recipients and has been selected for the commendation 4 years in a row, which proves that students passionately support his high quality class.

Name of his lecture recognized:
General Education Courses “Biology II”

Please refer to the following URL for more details (Japanese ver. only):
http://educate.academic.hokudai.ac.jp/center/enquete/enquete.htm

Conclusion of a cotutelle agreement with the Faculty of Earth Science and Technology, Xiamen University


On Thursday, June 23rd, a memorandum of understanding on a cotutelle program was concluded between the Graduate School of Environmental Science and the Faculty of Earth Science and Technology, Xiamen University. This is the first conclusion of a cotutelle program since the program was introduced into Hokkaido University.

A cotutelle program is a program that, after a conclusion of a cotutelle agreement between Hokkaido University and another university overseas, provides systematic joint research supervision for doctoral students for 1 year or more, in principle. When the students who have received joint research supervision satisfy the requirements for completion in their home university, they will be awarded a diploma stating the implementation of joint research supervision that is required for the completion of the doctoral program under both home and host universities.

Xiamen University is a prestigious university that represents South China, which was established by Tan Kah Kee, a well-known Chinese overseas business leader in 1921. The university consists of 27 schools and approximately 40,000 students. Hokkaido University and Xiamen University have been interacting with each other since the conclusion of an inter-university exchange agreement on November 25th, 2010, through visits, international conferences, and Hokkaido University Interaction Day events.

We look forward that the conclusion of this agreement will lead us to promote even more educational and research exchanges between the universities in the earth environmental science fields including oceanography, earth chemistry, ecology, and climatology.

EES Seminar (July 19, 2016) by Prof. Hongbin Liu, Hong Kong University of Science and Technology

2016年7月19日(火)午後2時からD101室にて、H28年度北海道大学招へい教員として滞在中のHongbin Liu教授(香港科技大学)による研究院アワー(EESセミナー)を開催致します(下記参照)。奮ってご参加願います。

鈴木光次(地球圏科学部門)

Prof. Hongbin Liu (Hong Kong University of Science and Technology) as a visiting professor of Hokkaido University is going to give a seminar at Rm. D101 from 2 pm, 19 July 2016 (see below). Your attendance would be greatly appreciated.

Koji Suzuki (Division of Earth System Science)

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EES Seminar

Date: Tuesday, 19 July 2016, 14:00–15:30

Venue: Room D101

Speaker: Prof. Hongbin Liu (Hong Kong University of Science and Technology/Hokkaido University)

Title: Geographical niche differentiation of Synechococcus communities in the Western Pacific Marginal Seas

Chair: Koji Suzuki (Division of Earth System Science)

Abstract: Synechococcus, a cosmopolitan pico-unicellular cyanobacteria, are important primary producers in marine environments. They are both highly phylogenetically and phenotypically diverse. In order to draw a map about the abundance, pigment phenotypic diversity (revealed by cpe genes), and phylogenetic diversity (revealed by rpoC1 gene) of Synechococcus in the western Pacific Ocean and its marginal seas, we collected surface samples in eight cruises from 2009 to 2014, and studied both the phylogenetic types and phenotypes (pigment genetics) of Synechococcus using 454 pyrosequencing and clone library construction and sequencing methods. Synechococcus abundance in this vast area was also determined through flow cytometric analysis. Our results show that the abundance and genetic diversity of Synechococcus were the highest in the East China Sea. Clades I and II were the dominant lineages in the western Pacific Ocean surface waters. We reiterated the global distribution pattern of these two lineages. Clade I Synechococcus may contain six different subclades corresponding to cold and warm water ecotypes. Clade IV Synechococcus were rarely found in this study, though it often co-occurs with clade I. Clade III, VI, VII and S5.3 were also the major Synechococcus lineages in the warm waters of the western Pacific Ocean, but with relatively narrower niche than clade II. There is a latitudinal niche partitioning in Synechococcus pigment phenotypic compositions. Pigment type 3a was abundant in the ECS, while type 3c and/or type 3dB was largely dominant at the SCS. Most strikingly, chromatic acclimaters of the 3dA type constituted almost the sole pigment type in the western subarctic Pacific and the Bering Sea. Our results also showed that Synechococcus communities with a similar phylogenetic composition could have distinct pigment phenotypic compositions, suggesting that the PE-encoding genes have undergone multiple lateral transfers between Synechococcus lineages during the evolution of this genus. The GC and GC3 contents of cpe genes of Synechococcus communities in the ECS are higher than those in other geographic locations, indicating that the pigment genes in the ECS suffered the least pressure. Our results show a geographical differentiation of Synechococcus phylogenetic and pigment phenotypic compositions in the western Pacific Ocean, which can be explained by the adaptation of different clades/types to environmental conditions.

Graduate School of Environmental Sceince, Hokkaido University