The evolution of" niche breadth," or" niche width," was a more popular topic in the
evolutionary ecological literature of the 1960s and 1970s than it has been recently (109 …

The costs and limits of phenotypic plasticity are thought to have important ecological and
evolutionary consequences, yet they are not as well understood as the benefits of plasticity …

Summary 1 The role of phenotypic plasticity in evolution has historically been a contentious
issue because of debate over whether plasticity shields genotypes from selection or …

To achieve a coherent evolutionary theory, it is necessary to account for the effects of the
environment on the process of development. Phenotypic plasticity is the change in the …

Plants face a daunting array of creatures that eat them, bore into them, and otherwise use
virtually every plant part for food, shelter, or both. But although plants cannot flee from their …

Food limitation is generally thought to underlie much of the variation in life history traits of
birds. I examined variation and covariation of life history traits of 123 North American …

Stephen C. Steams ariation, the fuel that feeds evolutionary change, origi-nates at the levels
of both the genotype and the phenotype. Geneti-cally identical organisms reared under …

This theme issue pursues an exploration of the potential of taking into account the
environmental sensitivity of development to explaining the evolution of metazoan life cycles …

To understand the evolution of polyphenism, or adaptive switching between alternative
developmental pathways and corresponding phenotypes, environmental factors governing …

The impetus for this book arose out of my previous book, The Evolution of Life Histories
(Roff, 1992). In that book I presented a single chapter on quanti tative genetic theory …