{"refrec":{"BRefID":240809,"RR":"<b>Wilke, T.; Pfenninger, M.</b> (2002). Separating historic events from recurrent processes in cryptic species: phylogeography of mud snails (<i>Hydrobia</i> spp.). <i>Mol. Ecol. 11(8)</i>: 1439–1451. <a href=\"http://dx.doi.org/10.1046/j.1365-294X.2002.01541.x\" target=\"_blank\">http://dx.doi.org/10.1046/j.1365-294X.2002.01541.x</a>","BEntID":232506,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mol. Ecol. 11(8)</i>: 1439–1451. <a href=\"http://dx.doi.org/10.1046/j.1365-294X.2002.01541.x\" target=\"_blank\">http://dx.doi.org/10.1046/j.1365-294X.2002.01541.x</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Wilke, T.; Pfenninger, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Wilke, T.; Pfenninger, M.","Englishabstract":"The present study combines methods that were designed to infer intraspecific relationships (e.g. nested-clade analysis (NCA), mismatch distributions and maximum likelihood gene flow analysis) to analyse historic events and recurrent processes in the cryptic mud snail species <em>Hydrobia acuta</em> and <em>H. glyca</em>. Specifically, we test the proposed allopatry of cryptic species and whether the peculiar range-subdivision of the putative subspecies <em>H.&nbsp;a. acuta</em> and <em>H.&nbsp;a. neglecta</em> is a result of long-distance dispersal or continuous range expansion. The NCA indicates a past fragmentation of the two <em>H. acuta</em> subspecies as well as past fragmentations within <em>H. glyca</em>. Gene-flow analyses show extensive gene flow in an E&ndash;W direction (towards the Atlantic) in the Mediterranean <em>H.&nbsp;a. acuta</em>, generally low gene flow in a W&ndash;E direction in the Atlantic <em>H.&nbsp;a. neglecta</em> and complex gene-flow pattern in a N&ndash;S but also in a S&ndash;N direction (against the Gulf Stream) in <em>H. glyca</em>. Based on these data and supportive ecological and oceanographical data, we hypothesize that the separation of the two <em>H. acuta</em> subspecies was not caused by long-distance dispersal but by a range shift and/or range expansion of the closely related competitor <em>H. glyca</em> as a result of an interglacial warming with a subsequent range shift in <em>H. acuta</em>. Moreover, our data do not show evidence for a long-term, stable sympatry of <em>Hydrobia</em> species, supporting the concept of allopatric relationships within cryptic radiations. NCA and gene-flow analyses indicate that the only sympatric population found in our study is the result of a recent dispersal event from the nearby Mediterranean. It is assumed that allopatric relationships in ephemeral <em>Hydrobia</em> populations constitute an evolutionary advantage relative to competition, recruitment and re-establishment of habitats. Mechanisms that could be of relevance for maintaining allopatry are discussed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Separating historic events from recurrent processes in cryptic species: phylogeography of mud snails (<i>Hydrobia</i> spp.)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:32:39.689958","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Allopatry; Coalescent; Morphostasis; mtDNA; Phylogeography","OtherDescriptors":null,"Notes":null,"AnaPub":2002,"MonPub":null,"DateUpdate":"2014-08-25","DateCreate":"2014-08-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000177086900017","VABBcode":null,"OpenAcc":0,"DOI":"10.1046/j.1365-294X.2002.01541.x"},"refs":null,"anarec":{"AnaID":240809,"PubliDate":2002,"Pagination":"1439–1451","XtraPublOfAnaID":null,"ISBN":null,"Volume":"11","Issue":"8","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45425,"SerRR":"Molecular Ecology. 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