Theoretical Studies of Schedules Concerning Life History and Behavior.

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Studies on the schedule of life history and behavior are :(1) The optimal growth schedule of plants in the fluctuating environments : Stochastic dynamic programming models demonstrated that whether or not growth plasticity is adaptive strongly depends on the mode of stochasticity of environmental fluctuating. From this, stress-tolerant strategy by Grime can be understood from the view of evolutionary ecology.(2) Activity schedule of male butterflies within a day : A game model is examine in which each male allocates its limited time of reproductive activity to optimize his own mating success.(3) Pathogens' optimal growth schedule within the host's body.(4) The evolution of digestive mode and foraging behavior of large herbivorous mammals.(5) Learning of Starlings during foraging in fluctuating environment.(6) The resource allocation models for plants' selfing rate.Other theoretical studies are :(7) Simplification of mathematical models by aggregating variables.(8) A quantity that always increases with time for Markovian transition models.(9) The evolution of mutation rate in fluctuating environments.