On the Formation of Feedback Mechanisms in Ecosystems
It is well known that there are positive and negative feedbacks universally in ecosystems,but few researches have been done on the formation of feedback mechanisms.In this paper,the authors present that the positive feedback coming mainly from that the present status is the major foundation of future development.An organism trends to observe selectively its familiar material and information from the environment,which is required by a survival strategy with an economical and high efficiency.The positive feedback is also from the increase in the primitive co-operation,mutation,training and learning among individuals.The main mechanisms of negative feedback are believed to be the limitation of common resources,mutual disturbing and suppression,and the higher maintenance cost and larger redundancy of a large-numbered component.The large-numbered component is frequently touched as cheap resource trends to be exploited and utilized by other components in the environment.The authors emphasize the present status as the base of future development and the higher maintenance cost of a large-numbered component.