Does symbiosis bias towards climatic regulation?

Addresses the question of why a system conducive to homeostasis (two opposing feedback influences with the same intermediate optimum conditions for growth/expansion, referred to as “integral rein control”) should arise, and whether there is anything about life that biases towards the production of such a system? The hypothesis expressed in this paper is that symbiosis, on average, tends to bring together physiologies with distinct impacts on the natural environment but shared optimal conditions for growth. This tends to bias towards the feedback structure shown to be conducive to homeostasis by the original daisyworld model. This is expressed by introducing a symbiosis between a black and white daisy into the model – with the result of an extension of the habitable range within the system, and succession type dynamics in which the symbiosis colonises the system first but is then displaced due to the evolutionary cost of co-operation.


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