Bundschuh, Mirco
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- University of Koblenz-Landau
Research article2019Peer reviewedOpen access
Nanoparticles transported from aquatic to terrestrial ecosystems via emerging aquatic insects compromise subsidy quality
Bundschuh, Mirco; Englert, Dominic; Rosenfeldt, Ricki R.; Bundschuh, Rebecca; Feckler, Alexander; Luederwald, Simon; Seitz, Frank; Zubrod, Jochen P.; Schulz, Ralf
Abstract
Nanoparticle contaminants enter aquatic ecosystems and are transported along the stream network. Here, we demonstrate a novel pathway for the return of nanoparticles from aquatic to terrestrial ecosystems via cross-boundary subsidies. During their emergence, trichopteran caddisflies carried titanium dioxide and gold nanoparticles into their terrestrial life stages. Moreover, their emergence was delayed by <= 30 days, and their energy reserves were depleted by <= 25%. Based on worst case estimates, it is suggested that terrestrial predators, such as bats feeding on aquatic prey, may ingest up to three orders of magnitude higher gold levels than anticipated for humans. Additionally, terrestrial predator species may suffer from alterations in the temporal availability and nutritional quality of their prey. Considering the substantial transfer of insect biomass to terrestrial ecosystems, nanoparticles may decouple aquatic and terrestrial food webs with important (meta-)ecosystem level consequences.
Published in
Scientific Reports
2019, Volume: 9, article number: 15676
Publisher: NATURE PUBLISHING GROUP
Feckler, Alexander
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- University of Koblenz-Landau
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
SLU Authors
UKÄ Subject classification
Environmental Sciences
Ecology
Publication identifier
DOI: https://doi.org/10.1038/s41598-019-52096-7
Permanent link to this page (URI)
https://res.slu.se/id/publ/102593