American Society of Naturalists

A membership society whose goal is to advance and to diffuse knowledge of organic evolution and other broad biological principles so as to enhance the conceptual unification of the biological sciences.

Sébastien Lion

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I am a theoretical evolutionary ecologist with a particular interest in the eco-evolutionary dynamics of spatially structured populations. I have worked on the evolution of helping behaviours and host-parasite interactions. As a child, I was captivated by systematics, perhaps because it helped to bring order to the bewildering diversity of life that I found so fascinating. The American Naturalist, with its strong emphasis on conceptual unification, embraces this tension between realism and abstraction. As a society-based and not-for-profit publication, it occupies a special and reassuring niche in the increasingly unstable ecosystem of scientific journals.

Editor, The American Naturalist

CNRS Researcher, Centre d'Ecologie Fonctionnelle et Evolutive, Montpellier, France