{"refrec":{"BRefID":231081,"RR":"<b>van Gils, J.A.; van der Geest, M.; Jansen, E.J.; Govers, L.L.; de Fouw, J.; Piersma, T.</b> (2012). Trophic cascade induced by molluscivore predator alters pore-water biogeochemistry via competitive release of prey. <i>Ecology 93(5)</i>: 1143-1152. <a href=\"http://dx.doi.org/10.1890/11-1282.1\" target=\"_blank\">dx.doi.org/10.1890/11-1282.1</a>","BEntID":222793,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Ecology 93(5)</i>: 1143-1152. <a href=\"https://dx.doi.org/10.1890/11-1282.1\" target=\"_blank\">https://dx.doi.org/10.1890/11-1282.1</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"van Gils, J.A.; van der Geest, M.; Jansen, E.J.; Govers, L.L.; de Fouw, J.; Piersma, T.","OrigTitleTranslFlag":0,"Authorstringtrunc":"van Gils, J.A. <i>et al.</i>","Englishabstract":"Effects of predation may cascade down the food web. By alleviating interspecific competition among prey, predators may promote biodiversity, but the precise mechanisms of how predators alter competition have remained elusive. Here we report on a predator-exclosure experiment carried out in a tropical intertidal ecosystem, providing evidence for a three-level trophic cascade induced by predation by molluscivore Red Knots (Calidris canutus) that affects pore water biogeochemistry. In the exclosures the knots' favorite prey (Dosinia isocardia) became dominant and reduced the individual growth rate in an alternative prey (Loripes lucinalis). Dosinia, a suspension feeder, consumes suspended particulate organic matter (POM), whereas Loripes is a facultative mixotroph, partly living on metabolites produced by sulfur-oxidizing chemoautotrophic bacteria, but also consuming suspended POM. Reduced sulfide concentrations in the exclosures suggest that, without predation on Dosinia, stronger competition for suspended POM forces Loripes to rely on energy produced by endosymbiotic bacteria, thus leading to an enhanced uptake of sulfide from the surrounding pore water. As sulfide is toxic to most organisms, this competition-induced diet shift by Loripes may detoxify the environment, which in turn may facilitate other species. The inference that predators affect the toxicity of their environment via a multi-level trophic cascade is novel, but we believe it may be a general phenomenon in detritus-based ecosystems.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Trophic cascade induced by molluscivore predator alters pore-water biogeochemistry via competitive release of prey","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Banc d'Arguin, Mauritania; bivalves (Dosinia isocardia, Loripeslucinalis); facilitation; growth rate; hydrogen sulfide; interspecificcompetition; predation; predator-exclosure experiment; Red Knot,Calidris canutus canutus; seagrass beds; top-down effect; toxicity","OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2016-03-07","DateCreate":"2013-12-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000304368100019","VABBcode":null,"OpenAcc":1,"DOI":"10.1890/11-1282.1"},"refs":null,"anarec":{"AnaID":231081,"PubliDate":2012,"Pagination":"1143-1152","XtraPublOfAnaID":null,"ISBN":null,"Volume":"93","Issue":"5","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42630,"SerRR":"Ecology. 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ISSN 0012-9658; e-ISSN 1939-9170","StandardTitleSer":"Ecology","ISSN":"0012-9658","AbbrevSer":"Ecology","StandardTitleMon":null,"StartPage":1143,"Pages":10,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"van Gils","Firstname":"Jan","Initials":"J.A.","Affiliation":"Department of Marine Ecology, NIOZ Royal Netherlands Institute for Sea Research","Discriminator":null,"CorporateFlag":0,"BEntID":222793,"AutID":181923,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"MEE","InsFSN":"Koninklijk Nederlands Instituut voor Onderzoek der Zee; NIOZ Texel; Afdeling Mariene Ecologie","ORCID":"0000-0002-4132-8243","PersID":29740,"InsID":13081},{"AutName":"van der Geest","Firstname":"Matthijs","Initials":"M.","Affiliation":"Department of Marine Ecology, NIOZ Royal Netherlands Institute for Sea Research","Discriminator":null,"CorporateFlag":0,"BEntID":222793,"AutID":170914,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"MEE","InsFSN":"Koninklijk Nederlands Instituut voor Onderzoek der Zee; 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