Biological Invasions

, Volume 18, Issue 6, pp 1581–1598

Rapid morphological changes, admixture and invasive success in populations of Ring-necked parakeets (Psittacula krameri) established in Europe

  • Ariane Le Gros
  • Sarah Samadi
  • Dario Zuccon
  • Raphaël Cornette
  • Michael P. Braun
  • Juan Carlos Senar
  • Philippe Clergeau
Original Paper


The Ring-necked parakeet (Psittacula krameri), native of Asia and Africa, is a very successful invasive species in Europe: it has been present there for over 50 years. A recent study showed that European invasive populations occupy a colder climatic niche than in their native range but the establishment of this tropical species in temperate regions remains unexplained. Two main hypotheses may explain the success of Ring-necked parakeet in Europe: admixture between individuals from different origins and/or rapid adaptation to new environmental conditions. In this study, we investigated with molecular data the origin of European populations of Ring-necked parakeets to assess whether these populations result from admixture between individuals from different source populations. We also investigated the morphology of individuals from European populations and from the native range to assess whether the invasive populations have morphologically diverged from their source and could have become adapted to European conditions. We found evidence of admixture in some of the European populations but not all of them. Admixture between individuals from different origins within European populations thus cannot explain alone their invasive success. Conversely, we found that the morphology of the individuals from European populations has diverged from the morphology of native individuals, in a similar direction. Rapid adaptation to European environmental conditions via phenotypic plasticity or natural selection could thus be a factor explaining the invasive success of Ring-necked parakeets in Europe.


Admixture Morphometrics Phylogeography Population genetics Rapid adaptation Ring-necked parakeet 

Supplementary material

10530_2016_1103_MOESM1_ESM.pdf (481 kb)
Supplementary material 1 (PDF 482 kb)

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Université Paris Diderot, Sorbonne Paris CitéParisFrance
  2. 2.MNHN, CNRS, UPMC, Institut de Systématique, Evolution, Biodiversité (ISYEB UMR 7205)Sorbonne UniversitésParisFrance
  3. 3.Institute of Pharmacy and Molecular BiotechnologyHeidelberg UniversityHeidelbergGermany
  4. 4.Evolutionary and Behavioural Ecology Associate Research Unit (CSIC)Natural History Museum of BarcelonaBarcelonaSpain
  5. 5.MNHN, CNRS, UPMC, Centre d’Ecologie et des Sciences de la Conservation (CESCO UMR7204)Sorbonne UniversitésParisFrance

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