適応進化する生態系ダイナミックスの理論的研究

2011 年度 研究成果報告書

• 研究課題/領域番号: 21370012
• 研究種目: 基盤研究(B)
• 配分区分: 補助金
• 応募区分: 一般
• 研究分野: 生態・環境
• 研究機関: 九州大学
• 研究代表者: 巌佐 庸 九州大学, 大学院・理学研究院, 教授 (70176535)
• 研究期間 (年度): 2009 – 2011
• キーワード: 数理モデリング / 生態系 / 社会/生態系ダイナミックス

研究概要

生態系は以前は物質循環の側面から理解されてきた。本研究ではそれぞれの種が進化・適応する中で、創発されるパターンや安定性、維持される種の多様性、さまざまな種の生活史の規則性を理解するための新しい理論を展開した。とくにヒトの選択動態を考慮し、それら生態系プロセスと結合した動態を理解する理論的枠組みを組み立てることを目指した。とくに孤立する森林や島状生息地における種数の減少に関する新しい公式を導くことができた。

研究成果

• [雑誌論文] A stochastic model of chromatin modification : cell population coding of winter memory in plants (2012)
  • 著者名/発表者名: Satake, A. and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 302 ページ: 6-17
• [雑誌論文] Evolutionary jumping and breakthrough in the trees' masting evolution (2012)
  • 著者名/発表者名: Tachiki, Y. andY. Iwasa
  • 雑誌名: Theoretical Population Biology 巻: 81 ページ: 20-31
• [雑誌論文] Multiple feedback loops achieve robust localization of wingless expression in Dosophila notum development (2012)
  • 著者名/発表者名: Hironaka, K., Y. Iwasa, and Y. Morishita
  • 雑誌名: Journal of Theoretical Biology 巻: 292 ページ: 18-29
• [雑誌論文] Burrowing in the bark or in the sapwood : a dynamic game between a mother and her offspring (2011)
  • 著者名/発表者名: Uchinomiya, K and Y. Iwasa
  • 雑誌名: Evolutionary Ecology Researech 巻: 13 ページ: 607-623
• [雑誌論文] Coding design of positional information for robust morphogenesis (2011)
  • 著者名/発表者名: Morishita, Y. and Y. Iwas
  • 雑誌名: Biophysical Journal 巻: 101 ページ: 2324-2335
• [雑誌論文] Tourists and traditional divers in a common fishing ground (2011)
  • 著者名/発表者名: Lee, Joung-Hun and Y. Iwasa
  • 雑誌名: Ecological Economics 巻: 70 ページ: 2350-2360
• [雑誌論文] Long-term effect of coral transplantation : Restoration-goals and the choice of species (2011)
  • 著者名/発表者名: Muko, S., and Y. Iwas
  • 雑誌名: ournal of Theoretical Biology 巻: 280 ページ: 127-138
• [雑誌論文] Green world maintained by adaptation (2011)
  • 著者名/発表者名: Mougi, A., and Y. Iwasa
  • 雑誌名: Theoretical Ecology 巻: 4 ページ: 201-210
• [雑誌論文] Coevolution of phenotypic plasticity in predator and prey : why inducible offenseis rarer than inducible defense? (2011)
  • 著者名/発表者名: Mougi, A., O. Kishida, and Y. Iwasa
  • 雑誌名: Evolution 巻: 65 ページ: 1079-1081
• [雑誌論文] Evolutionary dynamics of tumor diversity (2011)
  • 著者名/発表者名: Iwasa, Y., and F. Michor
  • 雑誌名: PLoS ONE 巻: 6 ページ: 17866
• [雑誌論文] Unique coevolutionary dynamics in a predator-prey system (2011)
  • 著者名/発表者名: Mougi, A. and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 277 ページ: 83-89
• [雑誌論文] T cell anergy as a strategy to reduce the risk of autoimmunity (2011)
  • 著者名/発表者名: Saeki, K. and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 277 ページ: 74-82
• [雑誌論文] Neutral theory as a predictor of avifaunal extinctions following habitat loss (2011)
  • 著者名/発表者名: Halley, J. M., and Y. Iwasa
  • 雑誌名: Proc. Nat. Acad. Sci. USA 巻: 108 ページ: 2316-2321
• [雑誌論文] Optimal choice of species and size classes for transplantation of coral community (2011)
  • 著者名/発表者名: Muko, S., and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 273 ページ: 130-137
• [雑誌論文] Regime shift and robustness of organism-created environment : a model for microbial ecosystem (2011)
  • 著者名/発表者名: Seto, M., and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 269 ページ: 297-306
• [雑誌論文] Optimal seasonal schedule of heteromorphic and isomorphic life-cycles in macroalgaeand their relative dominance (2010)
  • 著者名/発表者名: Bessho, K. and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 267 ページ: 201-212
• [雑誌論文] Pollinator coupling can induce synchronized flowering among different plan species (2010)
  • 著者名/発表者名: Tachiki, Y., Y. Iwasa, and A. Satake
  • 雑誌名: Journal of TheoreticalBiology 巻: 267 ページ: 153-163
• [雑誌論文] Both seedling banks and specific seed predators promote the evolution of synchronized and intermittent reproduction(masting) in trees (2010)
  • 著者名/発表者名: Tachiki, Y. and Y. Iwasa
  • 雑誌名: Journal of Ecology 巻: 98 ページ: 1398-1408
• [雑誌論文] Size-dependent sex change is the ESS without size-advantage of reproduction (2010)
  • 著者名/発表者名: Brooks, M., and Y. Iwasa
  • 雑誌名: Theoretical Population Biology 巻: 78 ページ: 183-191
• [雑誌論文] Evolution towards oscillation or stability in a predator-prey system (2010)
  • 著者名/発表者名: Mougi, A. and Y. Iwasa
  • 雑誌名: Proceeding of Royal Society London ser 巻: B 277 ページ: 3163-3171
• [雑誌論文] Synchronized oscillation of the segmentation clock gen in vertebrate development (2010)
  • 著者名/発表者名: Uriu, K., Y. Morishita, and Y. Iwasa
  • 雑誌名: Proc. Nat. Acad. Sci. USA 巻: 61 ページ: 217-229
• [雑誌論文] Synchronization of segmentation clock is promoted by random cell movement (2010)
  • 著者名/発表者名: Uriu, K., Y. Morishita, and Y. Iwasa
  • 雑誌名: Proc. Nat. Acad. Sci. USA 巻: 107 ページ: 4979-4984
• [雑誌論文] Sexual selection can increase the effect of random genetic drift-A quantitative genetic model of polymorphism in O. (2010)
  • 著者名/発表者名: Tazzyman, S. J., and Y. Iwasa
  • 雑誌名: Pumilio, the Strawberry poison-dar frog. Evolution 巻: 64 ページ: 1719-1728
• [雑誌論文] Paradox of nutrient remova in coupled socio-economic and ecological dynamics for lake water pollution (2010)
  • 著者名/発表者名: Iwasa, Y., Y. Suzuki-Ohno, and H. Yokomizo
  • 雑誌名: Theoretical Ecology 巻: 3 ページ: 113-122
• [雑誌論文] Optimal number of regulatory T cells (2010)
  • 著者名/発表者名: Saeki. K. and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 263 ページ: 210-218
• [雑誌論文] Global mutations and local mutations have very different effects on evolution, illustrated by mixed strategies of asymmetric binary games (2010)
  • 著者名/発表者名: Uehara, T. and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 262 ページ: 223-231
• [雑誌論文] Mechanisms for split localization of Fgf10 observed in early lung development (2009)
  • 著者名/発表者名: Hirashima, T., Y. Iwasa, and Y. Morishita
  • 雑誌名: Developmental Dynamics 巻: 238 ページ: 2813
• [雑誌論文] Advantage of having regulatory T cells requires localized suppression of immun reactions (2009)
  • 著者名/発表者名: Saeki, K., and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 260 ページ: 392-401
• [雑誌論文] Heteromorphic and isomorphic alternation of generations in macroalgae, as adaptations to a seasonal environment (2009)
  • 著者名/発表者名: Bessho, K., and Y. Iwasa
  • 雑誌名: Evolutionary Ecology Research 巻: 111 ページ: 691-771
• [雑誌論文] Accuracy of positional information provided by multiple chemical gradients with correlated noises (2009)
  • 著者名/発表者名: Morishita, Y. and Y. Iwasa
  • 雑誌名: Physical Review ページ: 061905
• [雑誌論文] The pace of evolution across fitness valleys (2009)
  • 著者名/発表者名: Gokhale, C., Y. Iwasa, M. A. Nowak, and A. Traulsen
  • 雑誌名: Journal of Theoretical Biology 巻: 259 ページ: 613-620
• [雑誌論文] Dynamic modeling of ureteric tube branching in the early kidney development (2009)
  • 著者名/発表者名: Hirashima, T., Y. Iwasa, and Y. Morishita
  • 雑誌名: Journal of Theoretical Biology 巻: 259 ページ: 58-66
• [雑誌論文] The coupled dynamics of human socio-economic choice and lake water system : the interaction of two sources of nonlinearity (2009)
  • 著者名/発表者名: Suzuki, Y., and Y. Iwasa
  • 雑誌名: Ecological Research 巻: 24 ページ: 479-489
• [雑誌論文] Traveling wave formation in vertebrate segmentation (2009)
  • 著者名/発表者名: Uriu, K., Y. Morishita and Y. Iwasa
  • 雑誌名: Journal of Theoretical Biology 巻: 257 ページ: 385-396
• [雑誌論文] Conflict between groups of players in coupled socio-economic and ecologic dynamics (2009)
  • 著者名/発表者名: Suzuki, Y., and Y. Iwasa
  • 雑誌名: Ecological Economics 巻: 68 ページ: 1006-1115
• [雑誌論文] Estimating the spatio-temporal pattern of volumetric growth rate from fate maps in chick limb development (2009)
  • 著者名/発表者名: Morishita, Y. and Y. Iwasa
  • 雑誌名: Developmental Dynamics 巻: 238 ページ: 415-422
• [雑誌論文] Indirect reciprocity provides only a narrow margin of efficiency for the costly punishment (2009)
  • 著者名/発表者名: Ohtsuki, H., Y. Iwasa, and M. A. Nowak
  • 雑誌名: Nature 巻: 457 ページ: 179-182
• [学会発表] Cooperation in multi-partner settings : biological markets and social dilemmas (2012)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: organized by R Noe, Lorentz Center
  • 発表場所: Leiden University, The Netherlands
  • 年月日: 20120216-2001
• [学会発表] Mathematical Models of Biological Phenomena and their Analysis (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Evolution of synchronized and intermittent reproduction of trees
  • 発表場所: Sendai
  • 年月日: 20111121-24
• [学会発表] Neutral theory as a predictor of avifaunal extinctions after habitat loss (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Mathematical Biology Workshop and Pacific Institute of Mathematical Sciences International Graduate Training Centre (PIMS IGTC) summit at the University of Victoria
  • 発表場所: Victoria, Canada
  • 年月日: 20110714-16
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Fifth International Congress on Mathematical Biology. Chinese Society for Mathematical Biology
  • 発表場所: Nanjing, China
  • 年月日: 20110603-05
• [学会発表] The Leading Eight : Social Norms that can Maintain Cooperation by Indirect Reciprocity (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: 6th Pan-Pacific Conference on Game Theory
  • 発表場所: Tokyo Institute of Technology
  • 年月日: 20110230-0302
• [学会発表] Mathematical models for development (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: The 2010 Annual Conference of Japanese Society for Bioinformatics
  • 発表場所: Centennial Hall, Kyushu University
  • 年月日: 2011-12-13
• [学会発表] Symposium for the 100 years Anniversary of Kyushu University (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Asian Conservation Ecology Neutral theory as a predictor of avifaunal extinctions after habitat loss
  • 発表場所: Ito Inamori Hall
  • 年月日: 2011-11-19
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Institute of Science and Technology, Austria
  • 発表場所: Klosterneuburg, Austria
  • 年月日: 2011-09-14
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Keynote Speaker, European Conference on Complex Systems 2011(ECCS' 11Vienna)
  • 発表場所: Vienna, Austria
  • 年月日: 2011-09-13
• [学会発表] Neutral theory as a predictor of avifaunal extinctions after habitat loss (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: In the joint seminar between Dept of Mathematical and Biology, Pusan National University
  • 発表場所: Korea
  • 年月日: 2011-08-27
• [学会発表] Neutral theory as a predictor of avifaunal extinctions after habitat loss (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Asian Conservation Ecology International seminar
  • 発表場所: Kyushu University
  • 年月日: 2011-08-12
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2011)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Seventh International Congress on Industrial and Applied Mathematics(ICIAM 2011)
  • 発表場所: Vancouver, Canada
  • 年月日: 2011-07-20
• [学会発表] Modeling morphogenesis in development (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: International Workshop on Mathematics for Biology
  • 発表場所: POSTECH, Pohang, Korea
  • 年月日: 20100712-13
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Biomathematics Day
  • 発表場所: Finland
  • 年月日: 2010-11-24
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Institute of Botany, Chinese Academy of Sciences
  • 発表場所: Beijin, China
  • 年月日: 2010-10-19
• [学会発表] Evolution of masting : synchronized and intermittent reproduction of trees (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: The hird China-Japan colloquium for mathematical biology
  • 発表場所: Beijin, China
  • 年月日: 2010-10-18
• [学会発表] Young Researcher Exchange Program : NSF-JSPS collaboration (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: National Science Foundation Tokyo Regional Office 50th anniversary Symposium
  • 発表場所: Tokyo
  • 年月日: 2010-10-06
• [学会発表] How to bridge between two worlds (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: 数理科学長期滞在型研究会(Riken mathematical sciences workshop)
  • 年月日: 2010-09-27
• [学会発表] Evolution of masting, synchronized and intermittent reproduction of trees : the role of gap dynamics (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Theoretical models in ecology, evolution, and behavior : Recent advances and conceptual issues
  • 年月日: 2010-07-21
• [学会発表] Modeling of morphogenesis in development (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Annual Meeting for the Japanese Society of Developmental Biology
  • 発表場所: Kyoto Int. Conf Cent
  • 年月日: 2010-06-23
• [学会発表] Computational and mathematical population dynamics(CMPD3), Evolution of masting, synchronized and intermittent reproduction of trees : the role of gap dynamics (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Plenary Speaker(Opening keynote speech). The Third conference on
  • 発表場所: University of Bordeaux 2, France
  • 年月日: 2010-05-31
• [学会発表] Cancer as a mini-evolutionary process (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: BK21 International Symposium Cutting-edge Biomedical Research, Invited Lecture. Pusan National University, School of Medicine
  • 発表場所: YangSang, Korea
  • 年月日: 2010-02-03
• [学会発表] Modeling morphogenesis in development (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Fifth geometry conference for friendship of Japan and China
  • 発表場所: OIST, Okinawa
  • 年月日: 2010-01-29
• [学会発表] Paradox of nutrient removal in coupled socio-economic and ecological dynamics for lake water pollution (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: The 2010 conference in differential equation
  • 発表場所: National Taiwan University, Taipei, Taiwan
  • 年月日: 2010-01-08
• [学会発表] Cancer as a mini-evolutionary process (2010)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Lectures on evolutionary biology(Department of Mathematics, National Tsing Hua University, Taiwan)
  • 発表場所: Department of Mathematics, National Tsing Hua University, Taiwan
  • 年月日: 2010-01-06
• [学会発表] Paradox of nutrient removal in coupled socio-economic and ecological dynamics for lake water pollution (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Symposium Evolution of cooperation-models and theories(org. U. Dieckmann and K. Sigmund)
  • 発表場所: IIASA, Austria
  • 年月日: 20090915-18
• [学会発表] Evolution of synchronized reproduction of trees : the role of gap dynamics (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: International Conference on Mathematical Biology : Multiply Structured Populations(org. B. Adams)
  • 発表場所: University of Bath, U. K
  • 年月日: 20090701-03
• [学会発表] Mathematical modeling of pattern formation and development (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Forum Math-for-Industry Casimir force, Casimir operators and the Riemann hypothesis(org. Wakayama et al.)
  • 発表場所: Nishijin Plaza, Fukuoka
  • 年月日: 2009-11-13
• [学会発表] Evolution and speciation : long-term ecological study (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Kyoto Prize Workshop
  • 発表場所: Kyoto International Hall
  • 年月日: 2009-11-12
• [学会発表] Cancer as a mini-evolutionary process (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Workshop What is evolution?-bicentennial of Charles Darwin' s birth(orgs. M. Murase et al)
  • 発表場所: Coop in Kyoto
  • 年月日: 2009-10-16
• [学会発表] Cancer as a mini-evolutionary process (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Special Lecture. Medical School of PNC
  • 発表場所: YangSang, Busan, Korea
  • 年月日: 2009-08-18
• [学会発表] Pusan National University (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Plenary lecture. Congratulatory remarks on the inauguration of Center for Mathematical and Computational Biology
  • 発表場所: Busan, Korea
  • 年月日: 2009-08-17
• [学会発表] Cancer as a mini-evolutionary process (2009)
  • 著者名/発表者名: Iwasa, Y
  • 学会等名: Department of Biological Applications and Technology, University of Ioannina, Greece
  • 年月日: 2009-04-28
• [図書] 第2版数理科学事典.「第5章生命の数理」の編集を担当.「生命の数理:概要」「発癌の数理」「遺伝子・タンパクダイナミックス」概日リズムなどを執筆 (2009)
  • 著者名/発表者名: 巌佐庸
  • 出版者: 丸善
• [備考] 〔その他〕ホームページ等
  • URL: http://bio-math10.biology.kyushu-u.ac.jp/?iwasa/