My research focuses on conservation biology and fisheries management motivated by the need to understand interplay between ecological and socioeconomic dynamics. Using theoretical approaches, I try to understand how stakeholders' decision making affects management outcomes. My current research interests include understanding the effect of marine protected areas, spatial unit scale of management, and ecosystem-based management.

Professional Experience

2017 Apr -  Present          JSPS Postdoctoral Fellow, Biodiversity and Biocomplexity Unit, Okinawa Institute
                                         of Science and Technology Graduate School

2015 Mar - 2017 Mar       Postdoctoral Researcher, Tropical Biosphere Research Center, University of the

2012 Apr - 2015 Mar
         JSPS Research Fellow (DC1)


2012 Apr - 2015 Mar        Ph.D., Theoretical Ecology at Kyushu University, Japan (Adviser: Yoh Iwasa)
2010 Apr - 2012 Mar        M.S.
, Theoretical Ecology at Kyushu University, Japan (Adviser: Yoh Iwasa)
2006 Apr - 2010 Mar        B.S., Rissho University, Japan (Adviser: Michinori Yamashita)

Visiting Appointments

2015 Mar - 2017 Mar        Visiting Postdoctoral Researcher, Centre of Excellence for Environmental
                                         Decisions, The University of Queensland
, Australia

2014 Sep - 2014 Oct        Visiting Student,
Centre for Environment, Fisheries and Aquaculture Science                                                             (Cefas), UK, Advisor: Dr. Axel G. Rossberg
2013 Oct - 2014 Aug        Visiting Student, University of California, Davis, USA
Advisor: Prof. Marissa L. Baskett
2009 Apr - 2010 Mar        Visiting Student Yokohama National Univesity, Japan
Advisor: Prof. Hiroyuki Matsuda


Peer-reviewed Articles
  1. Takashina, N., M. Beger, B. Kusumoto, S. Rathnayake, H.P. Possingham, A theory for ecological survey methods to map individual distributions, Theoretical Ecology, (2017)  [PDF]
  2. Takashina, N., J.H. Lee, & H.P. Possingham, Effect of marine reserve establishment on non-cooperative fisheries management, Ecological Modelling, 360:336-342, (2017) [PDF]
  3. Takashina, N., Simple rules for establishment of effective marine protected areas in an age-structured metapopulation dynamics. Journal of Theoretical Biology,  391:88-94, (2016) (Abstract) [PDF]
  4. Takashina, N. & M.L. Baskett, Exploring the effect of the spatial scale of fishery management. Journal of Theoretical Biology, 390:14-22, (2016) (Abstract) [PDF]
  5. Takashina, N. & A. Mougi, Maximum sustainable yields from a spatially-explicit harvest model. Journal of Theoretical Biology, 383:87-92, (2015) (Abstract) [PDF]
  6. Takashina, N. & A. Mougi, Effects of marine protected areas on overfished fishing stocks with multiple stable states, Journal of Theoretical Biology, 341:64-70, (2014) (Abstract) [PDF]
  7. Takashina, N., A. Mougi & Y. Iwasa, Paradox of marine protected area: suppression of fishery may cause species loss. Population Ecology, 54:475-485, (2012) (Abstract) [PDF]

In Review

  1. Takashina, N., B. Kusumoto, M. Beger, S. Rathnayake, H.P. Possingham, Spatially explicit approach to population abundance estimation in field surveys, bioRxiv 131037
  2. Braczkowski, A. et al., Tracking the reach and messages of the world’s largest ivory burn.

Peer-reviewed Japanese Articles
  1. Takashina, N., M. Yamashita, and H. Matsuda, Mathematical analysis for fisheries ecosystem management. Geo-Environmental Research, Rissho University, 12:115-119, 2010
Non-reviewed Japanese Articles
  1. Takashina, N., A. Asao, N. Nakamura, Mathematical analysis of smoking population dynamics : an epidemiological model. RIMS Kôkyûroku, 1706:35-40, 2010

Referee Activities

Applied Mathematical Modelling, Bulletin of Mathematical Biology, Ecology Letters, Journal of Theoretical Biology, Marine Policy, Mathematical Biosciences, PLOS ONE, Population Ecology, Theoretical Ecology, Theoretical Population Biology

Contact: nao.takashina "at" gmail.com