Sticklebacks, selection shadows, and salinity shifts: phenotypic plasticity in novel environments

by Helen C Spence-Jones

Phenotypic plasticity is the ability of one genotype to produce multiple phenotypes depending on external environmental conditions (see our slideshow for further information). It comes in many forms: from permanent developmental shifts in early life to ongoing, reversible behavioural responses to fluctuating environmental conditions. Although widespread, its role and importance in evolutionary dynamics is not

Why is human niche construction reshaping planet Earth?

by Erle C Ellis

Human societies have become a ‘great force of nature’. Among the many massive environmental changes we are causing are the widespread conversion of habitats to agricultural fields and settlements, species extinctions, global climate change, and the pollution of air, land and sea. So profound are these global transformations that geologists may soon recognise them as