{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["7"],"submitter":["DelVecchia AG"],"pubmed_abstract":["While most global productivity is driven by modern photosynthesis, river ecosystems are supplied by locally fixed and imported carbon that spans a range of ages. Alluvial aquifers of gravel-bedded river floodplains present a conundrum: despite no possibility for photosynthesis in groundwater and extreme paucity of labile organic carbon, they support diverse and abundant large-bodied consumers (stoneflies, Insecta: Plecoptera). Here we show that up to a majority of the biomass carbon composition of these top consumers in four floodplain aquifers of Montana and Washington is methane-derived. The methane carbon ranges in age from modern to up to >50,000 years old and is mostly derived from biogenic sources, although a thermogenic contribution could not be excluded. We document one of the most expansive ecosystems to contain site-wide macroinvertebrate biomass comprised of methane-derived carbon and thereby advance contemporary understanding of basal resources supporting riverine productivity."],"journal":["Nature communications"],"pagination":["13163"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC5117835"],"repository":["biostudies-literature"],"pubmed_title":["Ancient and methane-derived carbon subsidizes contemporary food webs."],"pmcid":["PMC5117835"],"pubmed_authors":["DelVecchia AG","Stanford JA","Xu X"],"additional_accession":[]},"is_claimable":false,"name":"Ancient and methane-derived carbon subsidizes contemporary food webs.","description":"While most global productivity is driven by modern photosynthesis, river ecosystems are supplied by locally fixed and imported carbon that spans a range of ages. Alluvial aquifers of gravel-bedded river floodplains present a conundrum: despite no possibility for photosynthesis in groundwater and extreme paucity of labile organic carbon, they support diverse and abundant large-bodied consumers (stoneflies, Insecta: Plecoptera). Here we show that up to a majority of the biomass carbon composition of these top consumers in four floodplain aquifers of Montana and Washington is methane-derived. The methane carbon ranges in age from modern to up to >50,000 years old and is mostly derived from biogenic sources, although a thermogenic contribution could not be excluded. We document one of the most expansive ecosystems to contain site-wide macroinvertebrate biomass comprised of methane-derived carbon and thereby advance contemporary understanding of basal resources supporting riverine productivity.","dates":{"release":"2016-01-01T00:00:00Z","publication":"2016 Nov","modification":"2025-04-21T19:18:22.5Z","creation":"2019-03-27T02:29:27Z"},"accession":"S-EPMC5117835","cross_references":{"pubmed":["27824032"],"doi":["10.1038/ncomms13163"]}}