| 研究課題/領域番号 |
26840153
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| 研究機関 | 国立極地研究所 |
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研究代表者 |
THIEBOT J.B. 国立極地研究所, 研究教育系, 特任研究員 (70723691)
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| 研究期間 (年度) |
2014-04-01 – 2017-03-31
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| キーワード | Antarctica / Environmental changes / Modeling / Penguin / Spatial distribution |
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| 研究実績の概要 |
The main step in this second year was to recover the data-loggers that were attached during one year on the penguins at the French Antarctic station. The success of recovery was higher than expected (expected rate in the project=70%; achieved=80%), thanks to the collaborators on the field. All the deployed loggers worked properly and the data are now downloaded. Only the calibration logger (recording at the station location) needs to be sent to the manufacturer to recover the data.
We also made an important discovery from the data collected on the field last year: the penguins may eat jellyfish. This may increase the flexibility of the penguins’ response to their changing environment. The conclusions of our project may thus need to be adjusted to this flexibility. The PI wrote a paper about this finding, which is now published in Marine Biology, and the results were presented at the World Seabird Conference (as initially planned in the project) and at the Pacific Seabird Group meeting where the American collaborators were present.
Also, during FY2015, the PI was invited to a meeting with other penguin experts in UK, where he met new collaborators from USA that also agreed on sharing tracking data on Adelie penguins. They also shared with the PI their method to analyse the data from the loggers (the same type were used in our project). We thus re-analysed our previously collected data accordingly for our paper showing the tracks of the penguins from the Japanese station. A similar paper with the data from the French station will also be written from this method.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The communication between teams has been working fine, and the magnitude of international collaboration reached through this project is actually greater than initially planned.
In addition, the unexpected discovery about jellyfish (see above) made this project more impactful to a broad range of scientists in the frame of current environmental changes, because the biomass of gelatinous organisms is predicted to increase as a consequence of climate changes. Several penguin research teams (from Australia, New Zealand, Argentina, and France) are interested to share their data with us to show the importance of this phenomenon at the global scale.
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| 今後の研究の推進方策 |
First, the collected data (from Japanese and French stations) are re-analysed following the new method allowing to get rid of some biases (see above). Two papers will be produced from this work. For the Japanese data the paper is already written and will be submitted very soon (targeted journal: Marine Ecology Progress Series). For the modelled habitat of the penguins from the French station the paper will be submitted very soon as well.
Second, the current progress with modelling the penguins’ habitat from the five different regions should make us able to produce another paper at the end of this year. An Australian expert in modelling tracking data from different regions is currently present in our team for a few months, which should yet facilitate this process. Future collaborations with Australian colleagues will be considered on the basis of this inter-regional work in Antarctica. This is especially interesting as penguins from the Japanese Antarctic station may overlap on the same winter habitat with the penguins from an Australian station.
Finally, another collaborative paper about penguins eating jellyfish is currently in consideration for the journal Current Biology. This paper will allow refining our conclusions on penguins’ flexibility to habitat change.
The results of this inter-region approach will be presented in August at the international conference on the 34th Scientific Committee on Antarctic Research; the abstract is already accepted.
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| 次年度使用額が生じた理由 |
There is 134,682 円 left from last year. This amount was not used yet because the publication costs for a paper were not used yet. One paper has been published this year (without any publication costs).
As initially planned in the project, the budget for the FY2016 will be used to disseminate the important findings of our international project.
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| 次年度使用額の使用計画 |
At least two papers are expected to be produced this year, with probable publication costs to cover for at least one of them (about 100,000~150,000 円, depending on the journal). This is how I will use the remaining budget that was planned for FY2015.
Finally, a small amount (about 15,000 円) may also be used to cover the cost of sending the logger to the manufacturer (Canada) to facilitate downloading the collected data.
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