wallace effect

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|ecology|evolutionary|_|biology}} A process of [[speciation]] where [[natural selection]] increases the [[reproductive]] [[isolation]] between two [[populations]] of [[species]] as a result of selection acting against the production of [[hybrid]] individuals of low [[fitness]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.