@article{oai:repo.qst.go.jp:00043867,
 author = {Doi, Masahiro and Fuma, Shoichi and Ishii, Nobuyoshi and Miyamoto, Kiriko and Takeda, Hiroshi and et.al and 土居 雅広 and 府馬 正一 and 石井 伸昌 and 宮本 霧子 and 武田 洋},
 issue = {Suppl.1},
 journal = {Radioprotection},
 month = {Jun},
 note = {Mathematical computer  model is developed to simulate the population dynamics and dynamic mass budgets of the microbial community  realized as a self sustainable aquatic ecological system in the tube.  Autotroph algae, heterotroph protozoa and saprotroph bacteria live symbiotically with interspecies' interactions as predator-prey relationship, competition for the common resource, autolysis of detritus and detritus-grazing food chain, etc. The simulation model is the individual-based parallel model, built in the demographic stochasticity, environmental stochasticity by dividing the aquatic environment into patches. Validity of the model is checked by the multifaceted data of the microcosm experiments.
In the analysis, intrinsic parameters of umbrella endpoint regarding to lethality are manipulated at the individual level, and tried to find the population level, community level especially focused on predator-prey relationship, and revealed the indirect effect of chronic exposure of radiation on the probability of Tetrahymena's extinction.},
 pages = {913--919},
 title = {Model ecosystem approach to estimate community level effects of radiation},
 volume = {40},
 year = {2005}
}