@article{fdi:010094374,
  title = {{G}enetic tracing reveals the role of ornamental plant trade in the simultaneous spread of three invasive ant species in {W}estern {E}urope},
  author = {{D}estour, {G}. and {K}aufmann, {B}. and {C}entanni, {J}. and {A}bdelli, {Z}. and {D}oums, {C}. and {D}umet, {A}. and {G}ippet, {J}. and {G}omel, {L}. and {L}ucas, {A}. and {T}auru, {H}. and {V}ergnes, {A}. and {B}latrix, {R}. and {J}aval, {M}arion},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding how human activities trigger biological invasions is crucial to prevent the environmental and socioeconomic costs of invasive species. {T}he {T}apinoma nigerrimun complex comprises five species of ants, three of which ({T}. darioi, {T}. ibericum, {T}. magnum) exhibit biological and ecological characteristics of invasive ant species. {T}hese three species are native to {W}estern {M}editerranean {E}urope and {N}orth {A}frica, but have been reported as invasive in northern {E}urope. {T}he ornamental plant trade is a common invasion pathway for many taxa, but its role in the continental spread of invasive {T}apinoma species remains unknown. {T}his study aims to identify the role of {O}rnamental {P}lant {S}ales {O}utlets ({OPSO}s) in the introduction of these three species and to determine the potential geographical origin of populations present in {F}rench {OPSO}s. {T}apinoma colonies were sampled in 103 {OPSO}s across four {F}rench urban areas and one {C}orsican locality, with a specific focus on the {M}editerranean region. {C}ollected ant workers were identified to the species level using 15 microsatellite markers. {G}enotypes were compared to genetic profiles of {E}uropean and {N}orth {A}frican populations to trace the geographical origin of introduced populations. {W}e found a high prevalence of invasive species in {OPSO}s, with 66% (16/24) of invaded {OPSO}s in the urban area of {M}ontpellier and 31% (19/61) in the urban area of {L}yon, suggesting an important role of {OPSO}s in the introduction of the three species. {M}ultiple introductions were detected in {M}ontpellier {OPSO}s, both at species level (seven {OPSO}s with two or three invasive species) and between genetic clusters within species (five {OPSO}s with more than one genetic cluster for {T}. magnum). {B}ased on genetic clustering, populations with probable origins in {S}pain or {I}taly were detected in the {F}rench {OPSO}s. {T}hese results are particularly worrying as multiple simultaneous introductions might promote a rapid genetic recovery from founder effects for one species or result in hybridization between species. {O}verall, our findings highlight the importance of the trade in ornamental plants in shaping insect invasions and increasing the risk of genetic mixing with unforeseeable consequences on species invasiveness.},
  keywords = {{FRANCE} ; {EUROPE}},
  booktitle = {},
  journal = {{P}eer {C}ommunity {J}ournal},
  volume = {5},
  numero = {},
  pages = {e67 [22 p.]},
  ISSN = {2804-3871},
  year = {2025},
  DOI = {10.24072/pcjournal.577},
  URL = {https://www.documentation.ird.fr/hor/fdi:010094374},
}