@article{fdi:010046213,
  title = {{E}cologically heterogeneous populations of the invasive ant {W}asmannia auropunctata within its native and introduced ranges},
  author = {{O}rivel, {J}. and {G}rangier, {J}. and {F}oucaud, {J}. and {L}e {B}reton, {J}. and {A}ndres, {F}. {X}. and {J}ourdan, {H}erv{\'e} and {D}elabie, {J}. {H}. {C}. and {F}ournier, {D}. and {C}erdan, {P}. and {F}acon, {B}. and {E}stoup, {A}. and {D}ejean, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {1. {T}he biology of most invasive species in their native geographical areas remains largely unknown. {S}uch studies are, however, crucial in shedding light on the ecological and evolutionary processes underlying biological invasions. 2. {T}he present study focuses on the little fire ant {W}asmannia auropunctata, a species native to {C}entral and {S}outh {A}merica that has been widely introduced and which has become invasive throughout the tropics. {W}e characterise and compare several ecological traits of native populations in {F}rench {G}uiana with those in one of its introduced ranges, {N}ew {C}aledonia. 3. {W}e found ecologically heterogeneous populations of {W}. auropunctata coexisting in the species' native geographical area. {F}irst, we found populations restricted to naturally perturbed areas (particularly floodplains) within the primary forest, and absent from the surrounding forest areas. {T}hese populations were characterised by low nest and worker densities. {S}econd, we found dominant populations in recent anthropogenic areas (e.g. secondary forest or forest edge along road) characterised by high nest and worker densities, and associated with low ant species richness. {T}he local dominance of {W}. auropunctata in such areas can be due to the displacement of other species (cause) or the filling-up of empty habitats unsuitable to other ants (effect). {W}ith respect to their demographic features and ant species richness, the populations of native anthropogenic habitats were to a large extent similar to the invasive populations introduced into remote areas. 4. {T}he results point to the need for greater research efforts to better understand the ecological and demographic features of invasive species within their native ranges.},
  keywords = {{B}iological invasion ; disturbance ; ecological traits ; native ; {W}asmannia auropunctata},
  booktitle = {},
  journal = {{E}cological {E}ntomology},
  volume = {34},
  numero = {4},
  pages = {504--512},
  ISSN = {0307-6946},
  year = {2009},
  DOI = {10.1111/j.1365-2311.2009.01096.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010046213},
}