Multiple invasions decimate the most imperiled freshwater invertebrates.

ABSTRACT: Invaders can have devastating impacts on freshwater ecosystems, but these impacts can subside over time as ecosystems "adapt" to the invasion of new species. We analyzed changes in species composition and density of molluscs in Oneida Lake (New York, USA), one of the best studied North American lakes based on detailed surveys conducted in 1915-17, 1967-68, 1992-95, 2012, and 2022-23, and on annual benthic surveys from 2009 through 2023. Eutrophication and habitat alteration after 1920 resulted in a 25% decline in species richness and a 95% decline in the density of native gastropods by 1967, while species richness of unionids did not change. The arrival of zebra mussels in 1991 and quagga mussels in 2005 was associated with an increase in species richness and density of native gastropods a

SUBMITTER: Karatayev AY 

PROVIDER: S-EPMC11821755 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature