Wednesday, April 24, 2019

Most organic evolution involves non-Darwinian processes; much behavioral selection is non-teleonomic; non-Darwinian processes provide a better model for most cultural evolution than does selection by consequences

The non-Darwinian evolution of behavers and behaviors. Peter R. Killeen. Behavioural Processes, Volume 161, April 2019, Pages 45-53. https://doi.org/10.1016/j.beproc.2017.12.024

Highlights
•    Most organic evolution involves non-Darwinian processes.
•    Much behavioral selection is non-teleonomic.
•    Non-Darwinian processes provide a better model for most cultural evolution than does selection by consequences.

Abstract: Many readers of this journal have been schooled in both Darwinian evolution and Skinnerian psychology, which have in common the vision of powerful control of their subjects by their sequalae. Individuals of species that generate more successful offspring come to dominate their habitat; responses of those individuals that generate more reinforcers come to dominate the repertoire of the individual in that context. This is unarguable. What is questionable is how large a role these forces of selection play in the larger landscape of existing organisms and the repertoires of their individuals. Here it is argued that non-Darwinian and non-Skinnerian selection play much larger roles in both than the reader may appreciate. The argument is based on the history of, and recent advances in, microbiology. Lessons from that history re-illuminate the three putative domains of selection by consequences: The evolution of species, response repertoires, and cultures. It is argued that before, beneath, and after the cosmically brief but crucial epoch of Darwinian evolution that shaped creatures such as ourselves, non-Darwinian forces pervade all three domains.

Keywords: Non-Darwinian evolution Selection by consequences Tree of life Lateral gene transfer Meme Microbes

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