{"refrec":{"BRefID":198442,"RR":"<b>Dennert, H.G.</b> (1974). Tolerance differences and interspecific competition in three members of the amphipod genus <i>Gammarus</i>. <i>Hydrobiol. Bull. 8(1-2)</i>: 109. <a href=\"https://dx.doi.org/10.1007/BF02254910\" target=\"_blank\">https://dx.doi.org/10.1007/BF02254910</a>","BEntID":190785,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Hydrobiol. Bull. 8(1-2)</i>: 109. <a href=\"https://dx.doi.org/10.1007/BF02254910\" target=\"_blank\">https://dx.doi.org/10.1007/BF02254910</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Dennert, H.G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Dennert, H.G.","Englishabstract":"1) In a series of experiments with <i>G. pulex, G. duebeni celticus</i> and <i>G.d. duebeni</i> populations, pure or mixed, their tolerances for several temperature/salinity conditions have been determined. Tested were 100%, 10%, 1% and 0.1% seawater in combination with temps of 5, 10 or 15°C. In general all species tolerated the 5° C conditions better than those with higher temperatures, and the middle salinity range (1% for <i>G. pulex</i>, 1% and 10% for <i>G.d. celticus</i> and <i>G.d. duebeni</i>) better than the lower or higher salinities. (2) In nearly all situations tested <i>G. pulex</i> had a lower survival rate than <i>G.d. celticus</i> and <i>G.d. duebeni</i>. (3) Notwithstanding the sometimes unfavourable conditions for <i>G. pulex</i>, this species can compete successfully with <i>G.d. celticus</i> under most of the experimental conditions, but the interspecific relations between <i>G. pulex</i> and <i>G.d. duebeni</i> end in the competitive exclusion of the species. These results support 2 theories: (1) <i>G. pulex</i> is able to compete successfully with <i>G.d. celticus</i> and to expel the latter of its niche, and (2) <i>G.d. duebeni</i> is capable to invade freshwater and to establish inland populations. (4) The differences demonstrated between <i>G.d. celticus</i> and <i>G.d. duebeni</i> are an argument for a different development and different capabilities of both subspecies. (5) Sterile interspecific matings between these (sub) species are temperature dependent and do not play a major role in the interspecific relations connected with competition.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Tolerance differences and interspecific competition in three members of the amphipod genus <i>Gammarus</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-08 01:30:53.641760","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1974,"MonPub":null,"DateUpdate":"2021-03-08","DateCreate":"2010-09-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0,"DOI":"10.1007/BF02254910"},"refs":null,"anarec":{"AnaID":198442,"PubliDate":1974,"Pagination":"109","XtraPublOfAnaID":null,"ISBN":null,"Volume":"8","Issue":"1-2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44426,"SerRR":"Hydrobiological Bulletin. Netherlands Hydrobiological Society: Amsterdam.  ISSN 0165-1404; e-ISSN 2214-708X","StandardTitleSer":"Hydrobiological Bulletin","ISSN":"0165-1404","AbbrevSer":"Hydrobiol. Bull.","StandardTitleMon":null,"StartPage":109,"Pages":null,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":[{"YBRefID":198398,"RefStrFull":"(1974). Proceedings of the International Symposium on Ecology and Physiology of the Brackish Environment, Amsterdam, September 4-7, 1973. Organized by the Netherlands Hydrobiological Society in honour of the Dutch hydrobiologist Dr. H.C. Redeke (1873-1945). <i>Hydrobiological Bulletin</i>, 8(1-2). Netherlands Hydrobiological Society: Amsterdam.  252 pp.","RelID":10,"Relation":"Also appears in","StandardTitle":"Proceedings of the International Symposium on Ecology and Physiology of the Brackish Environment, Amsterdam, September 4-7, 1973"}],"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Dennert","Firstname":"Henk","Initials":"H.G.","Affiliation":null,"Discriminator":null,"CorporateFlag":1,"BEntID":190785,"AutID":126066,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":null,"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Netherlands Hydrobiological Society","City":"Amsterdam"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":[{"TaxTerm":"Gammarus"}],"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":190785,"AbstractFlag":-1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":190785,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1007/BF02254910","externalID":"10.1007/BF02254910","URLTypeCode":"DOI","URLID":91469,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":[{"TaxTerm":"Gammarus","AphiaID":101537,"TaxtID":24372}],"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":[{"TaxTerm":"Gammarus","DutchTerm":null,"AphiaID":101537,"TaxtID":24372}],"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Chisala, Chilekwa, C.","newSesDate":{"date":"2010-09-14 13:50:28.603000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2021-03-08 06:53:33.137000","timezone_type":3,"timezone":"Europe/Brussels"}}}