Introduction to niches and mechanisms in ecology and evolution

Abstract Niches and mechanisms are two important but contested elements in the study of organism-environment interactions. Although they are closely interrelated, with niches playing a crucial role in theorizing about ecological and evolutionary mechanisms such as niche construction, facilitation, and species invasion, philosophical discussions about each issue have been largely disconnected. This collection addresses this gap, bringing together contributions from philosophers and biologists about the niche concept, niche construction theory, and ecological and evolutionary mechanisms. In this introduction we provide some background to the collection, which arose out of two workshops organized within an interdisciplinary research consortium. We also summarize each contribution, organized roughly into three groups with considerable overlap and interrelations: niche construction and evolutionary theory, niches, and ecological and evolutionary mechanisms.