Symposium "Ecosystem Management and Environmental Decisions”
In this symposium, diverse aspects of ecosystem management and environmental decisions will be discussed. First, Professor Hugh Possingham will give his key note lecture, followed by a series of talks by Australian scientists and those researchers from Kyushu University. Talks will cover modeling of conservation biology, computational models including physiological processes, games for corruption and punishment related to deforestation, marine protected areas, and social sciences for ecosystem management. Speakers includes ecologists, economists, physicists and mathematicians. Themes includes computational and mathematical modeling of ecological and social processes, the problems of environmental policy choice under considerable risk and uncertainty, and social consensus building, the efficiency of institution among many others. The session will be in an intimate atmosphere in a rather small room. It will be open to public, and any person interested in the topics can come and join the discussion. Below is a tentative schedule.
Organizer: Yoh Iwasa
The reason of sexual reproduction
About 40 years ago M.Smith presented a concept: “Two fold cost of sexual reproduction”. Thereafter many hypotheses have been made for the reason of sexual reproduction. However general answer has not been found yet. I search for the question with two simulations. Through simulations I find sexual reproduction has more advantage concerning its diversity than it is believed. If competition occurs between sexual and asexual populations, sexual would win because of its diversity. However the real reason of sexual reproduction is competitiveness of sexual due to its diversity. Distribution of both sexual and asexual could be explained by this way of thinking, I think.