Year-end Sale % OFF 
Abstract
A lot of science has passed under the bridge since the classic definition of evolution as a change in gene frequencies in a population became common. Much knowledge has accumulated since then about evolution, heredity, ecology, development, phenotypic plasticity, niche construction and genetic drift. Building on Van Valen’s description of evolution as “the control of development by ecology,” it is suggested that the classic definition be replaced by a updated ‘eco-evo-devo’ definition of evolution by natural selection which acknowledges this accumulation.
Highlights
Population genetics has long defined evolution as a change in gene, or more accurately, allele frequencies in a population
Many theories of speciation have been formulated in population genetics terms—theories invoking geographical isolation, ecological isolation or sexual selection whether alone, or in varying combinations and orders (Coyne 2004)
The meaning of the word “gene” has changed historically (Beurton, et al 2000; Rheinberger and Muller‐Willie 2004) and varies currently among biologists as survey research has shown (Stotz, et al 2004). This is so much the case that some biologists have taken to blogging about it (Moran 2007; http://sandwalk.blogspot.com/2007/01/what‐is‐gene.html)
Summary
Population genetics has long defined evolution as a change in gene, or more accurately, allele frequencies in a population. An ecological change induces some individual(s) of a preexisting hereditary background to develop differently morphologically, physiologically or behaviorally relative to others (possible because of extensive phenotypic plasticity, [Pigliucci 2001]), changing relative fitnesses, and the frequencies of hereditary elements.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Spontaneous Generations: A Journal for the History and Philosophy of Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
