Date |
Stage |
Modification |
1883-1886 |
Weismann's neo-Darwinism |
End of soft inheritance; diploidy and genetic recombination recognized |
1900 |
Mendelism |
Genetic constancy accepted and blending inheritance rejected |
1918-1933 |
Fisherism |
Evolution considered to be a matter of gene frequencies and the force of even small selection pressures |
1936-1947 |
Evolutionary synthesis |
Population thinking emphasized; interest in the evolution of diversity, geographic speciation, variable evolutionary rates |
1947-1972 |
Post-Synthesis |
Individual increasingly seen as target of selection; a more holistic approach; increased recognition of chance and constraints |
1954-1972 |
Punctuated equilibria |
Importance of speciational evolution |
1969-1980 |
Rediscovery of importance of sexual selection |
Importance of reproductive success for selection |
References