Spatial modeling in ecology as point pattern dynamics
| Project/Area Number |
26440239
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Nara Women's University |
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Principal Investigator |
TAKASU Fugo 奈良女子大学, 自然科学系, 教授 (70263423)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 基礎生物学 / 生態・環境 / 数理モデル / 点パターン / 感染症ダイナミクス / 空間生態学 / 個体ベースモデル / 点パターンダイナミクス / トリプレット / 空間個体群動態 / 共進化 / 感染症の空間分布 |
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| Outline of Final Research Achievements |
I have revisited classical spatial population models described such as patch model, lattice model, reaction diffusion model in terms of "point pattern dynamics". These models have been implemented as stochastic point pattern dynamics. I have derived a set of deterministic dynamics of the 1st order (density of points) and the 2nd order (distribution of distances in pair made by two points) which are expected to describe simulations. Triplet density made by thee points appears in the dynamics. With a simple moment closure, the derived deterministic dynamics quite well describes stochastic simulation results, especially when birth and death of points are ignored. I have established the way how classical population dynamics (competition, prey-predator, epidemic models, etc.) can be translated to stochastic point pattern dynamics.
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Report
(4 results)
Research Products
(20 results)
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[Journal Article] Disappearance of eggs from nonparasitized nests of brood parasite hosts: the evolutionary equilibrium hypothesis revisited2016
Author(s)
Bard G. Stokke, Eivin Roskaft, Arne Moksnes, Anders Pape Moller, Anton Antonov, Frode Fossoy, Wei Liang, German Lopez- Iborra, Csaba Moskat, Jacqui Shykoff, Manuel Soler, Johan R. Vikan, Canchao Yang and Fugo Takasu
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Journal Title
Biological Journal of the Linnean Society
Volume: 118
Pages: 215-225
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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