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Neocosmopolitan distributions of invertebrate aquatic invasive species due to euryhaline geographic history and human-mediated dispersal:Ponto-Caspian versus other geographic origins

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Ecological Processes 2023年第1期12卷 15-30页

作者： Aldona Dobrzycka-Krahel Carol A.Stepien Zofia Nuc WSB University in Gdańsk Al.Grunwaldzka 238A80-266GdańskPoland Faculty of Oceanography and Geography Institute of OceanographyUniversity of GdanskAl.Marszałka Piłsudskiego 4681-378 GdyniaPoland Department of Vertebrate Zoology Smithsonian InstitutionNational Museum of Natural HistoryWashingtonDC 20013-7012USA.

Background:Aquatic invertebrate species that have broad salinity tolerances may be pre-adapted for invasion success and biogeographic distributional range expansions,facilitated by human-mediated dispersal(HMD),leading to a trend to become neocosmopolitan across many regions of the *** pattern appears to characterize many Ponto-Caspian(P-C)aquatic invertebrates,which have a>100-year history as aquatic invasive species(AIS),spreading throughout much of Eurasia and for some,in North America and *** study compiles comparative salinity conditions and distributional data for AIS invertebrate species globally versus those originating from the P-C region,to test whether they statistically ***:Our investigation discerns that a total of 1861 invertebrate AIS taxa have been recorded worldwide,with(A)70.5%exclusively living in the saline adaptive zone of brackish(0.5-30 ppt;A1)and/or marine waters(>30 ppt;A2),(B)20%in the freshwater adaptive zone alone(0-0.5 ppt),(C)7.5%being euryhaline(across both A and B),and(D)2%being semi-aquatic in either(D1)freshwater/terrestrial or(D2)saline/terrestrial *** contrast,our results indicate the following proportions for AIS invertebrates of P-C origins:(A)27%exclusively inhabit the saline adaptive zone,(B)25%are entirely freshwater,(C)45%are euryhaline,and(D)3%are semi-aquatic,significantly differing from the global *** AIS native to the P-C region thus markedly outnumber(45%)those originating from other regions(7.5%),likely pre-adapting them for widespread establishment in harbors,estuaries,and coastal ***,most P-C invertebrate AIS(70%)contain freshwater-tolerant populations(B+C),rendering them very successful invaders of inland water *** broad salinity tolerances of P-C AIS underlie their tremendous invasion successes and growing neocosmopolitan distributions with ***:An evolutionary and recent history of broad salinity tolerances of a large proportion of

关键词： Aquatic invasive species Biogeography Distribution pattern Euryhalinity Freshwater adaptive zone Invasive species Neocosmopolitan Nonindigenous species saline adaptive zone Zebra mussel

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