ecotypic evolution

Ecotypic evolution refers to the development of distinct ecotypes, which are populations of a species that survive as separate groups due to environmental selection and isolation. These ecotypes are comparable to taxonomic subspecies.1

This process is a form of microevolution, where small-scale evolutionary changes occur within natural populations. These changes can lead to adaptations to specific environments, resulting in locally adapted ecotypes. For example, anoles on Caribbean islands exhibit adaptations to distinct habitats like tree trunks or grass. Over time, the accumulation of these genetic changes can lead to the formation of new species, a process known as speciation. This can occur through mechanisms like allopatric speciation, where geographic barriers lead to reproductive isolation, or sympatric speciation, where isolation occurs within a single population.23