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

作　　者：Aldona Dobrzycka-Krahel Carol A.Stepien Zofia Nuc 

机构地区：[1]WSB University in Gdańsk,Al.Grunwaldzka 238A,80-266,Gdańsk,Poland [2]Faculty of Oceanography and Geography,Institute of Oceanography,University of Gdansk,Al.Marszałka Piłsudskiego 46,81-378 Gdynia,Poland [3]Department of Vertebrate Zoology,Smithsonian Institution,National Museum of Natural History,Washington,DC 20013-7012,USA.

出　　处：《Ecological Processes》2023年第1期15-30,共16页生态过程（英文）

摘　　要：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 world.This 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 beyond.Our 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 differ.Results: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 environments.In 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 pattern.Euryhaline 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 areas.Moreover,most P-C invertebrate AIS(70%)contain freshwater-tolerant populations(B+C),rendering them very successful invaders of inland water bodies.These broad salinity tolerances of P-C AIS underlie their tremendous invasion successes and growing neocosmopolitan distributions with HMD.Conclusions:An evolutionary and recent history of broad salinity tolerances of a large proportion of P-C invertebrates appears to enhance their abili

关 键 词：Aquatic invasive species BIOGEOGRAPHY Distribution pattern Euryhalinity Freshwater adaptive zone Invasive species Neocosmopolitan Nonindigenous species Saline adaptive zone Zebra mussel 

分 类 号：Q178[生物学—水生生物学]