bioturbation

[ bahy-oh-tur-bey-shuh n ]
/ ˌbaɪ oʊ tɜrˈbeɪ ʃən /

noun

the alteration and disturbance of a site by living organisms; the turning and mixing of sediments by organisms, as rodents.

Scientific definitions for bioturbation

bioturbation
[ bī′ō-tər-bāshən ]

The stirring or mixing of sediment or soil by organisms, especially by burrowing, boring, or ingestion.