Developmental Channeling and Evolutionary Dappling.

The developmental properties of organisms play important roles in the generation of variation necessary for evolutionary change. But how can individual development steer the course of evolution? To answer this question, we introduce developmental channeling as a disposition of individual organisms t...

Full description

Bibliographic Details
Published in:Philosophy of Science Vol. 91; no. 4; pp. 869 - 887
Main Authors: Ramsey, Grant, Villegas, Cristina
Format: Article
Published: Cambridge University Press Oct2024
Subjects:
Online Access:View this record in EBSCOhost
Description
Summary:The developmental properties of organisms play important roles in the generation of variation necessary for evolutionary change. But how can individual development steer the course of evolution? To answer this question, we introduce developmental channeling as a disposition of individual organisms that shapes their possible developmental trajectories and evolutionary dappling as an evolutionary outcome in which the space of possible organismic forms is dappled—it is only partially filled. We then trace out the implications of the channeling-dappling framework for contemporary debates in the philosophy of evolution, including evolvability, reciprocal causation, and the extended evolutionary synthesis.