1st Edition

Beyond Lamarckism Plasticity in Darwinian Evolution, 1890-1970

By Laurent Loison Copyright 2025
314 Pages 27 B/W Illustrations
by Routledge

314 Pages 27 B/W Illustrations
by Routledge

314 Pages 27 B/W Illustrations
by Routledge

Over the past 20 years, the role of phenotypic plasticity in Darwinian evolution has become a hotly debated topic among biologists and philosophers of science. For instance, in the Extended Evolutionary Synthesis, a new form of evolutionary theory that aims to include processes not taken into account by standard theory (the Modern Synthesis), the question of the remarkable plasticity of living... Read more

Introduction.

Part I. The rise of organic selection: thinking plasticity ecologically

1. Framing the issue from the viewpoint of natural selection: The confusing birth of organic selection in the pre-Mendelian era

2. The eclipse of organic selection: The case study of French-speaking post-Lamarckian biology

3. The experimental turn, from plastic change to speciation

Conclusion of Part I

Part II. Waddington and Schmalhausen: thinking plasticity developmentally

Introduction of Part II

4. "Autonomization", "canalization", and "genetic assimilation": toward a developmental perspective on the relationship between adaptability and adaptation

5. A problematic issue: the creativity of the developmental process

6. An overlooked revolution? Creativity in the evolutionary building of a new reaction norm

Conclusion of Part II

Part III. (Dis?)Integration into the Modern Synthesis: thinking plasticiy genetically

Introduction of Part III

7. The Baldwin effect: “De-ecologizing” organic selection

8. Re-working Waddingtonian concepts within quantitative genetics

9. The complex fate of Waddingtonian concepts in the subsequent history of the Modern Synthesis

Conclusion of Part III

General Conclusion

Biography

Laurent Loison is a CNRS researcher in history and philosophy of biology (Paris, France). A major part of his work focuses on the history of the various forms of Lamarckism in biology over the past two centuries.