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New Caledonia: a very old Darwinian island?
TLDR
New Caledonia must be considered as a very old Darwinian island, a concept that offers many more fascinating opportunities of study, as it is contradicted by geological evidence indicating long Palaeocene and Eocene submersions and by recent biogeographic and phylogenetic studies. Expand
Clonal reproduction by males and females in the little fire ant
TLDR
Findings show that the haplodiploid sex-determination system provides grounds for the evolution of extraordinary genetic systems and new types of sexual conflict in the little fire ant Wasmannia auropunctata. Expand
Antennal sensilla and sexual dimorphism of the adult ladybird beetle Semiadalia undecimnotata Schn. (Coleoptera: Coccinellidae)
TLDR
The antennal receptors of the adult male and female ladybird beetle, Semiadalia undecimnotata (Coleoptera: Coccinellidae), were examined by scanning and transmission electron microscopy and the possible role of male-specific sensilla in intersexual communication is discussed. Expand
Threats on Pacific islands: the spread of the Tramp Ant Wasmannia auropunctata (Hymenoptera: Formicidae)
TLDR
Invasions are not an abnormality in the evolutionary process, but an increase in their rate could lead to a dramatic homogenization of fauna and flora. Expand
Cretaceous environmental changes led to high extinction rates in a hyperdiverse beetle family
TLDR
Age estimates reveal an origin after the Triassic-Jurassic mass extinction (older than previously thought), followed by the diversification of major lineages during Pangaean and Gondwanan breakups, and it is hypothesized that this pattern is better explained by the concomitant reduction of arid environments starting in the mid-Cretaceous. Expand
Higher level molecular phylogeny of darkling beetles (Coleoptera: Tenebrionidae)
TLDR
This study reconstructs the first higher level phylogeny based on DNA sequence data for the species‐rich darkling beetles, and investigates the evolutionary history of Tenebrionidae using multiple phylogenetic inference methods to analyse a dataset consisting of eight gene fragments across 404 taxa. Expand
Immediate impacts of invasion by Wasmannia auropunctata (Hymenoptera: Formicidae) on native litter ant fauna in a New Caledonian rainforest
TLDR
Wasmannia auropunctata appears to be a highly competitive ant that dominates the litter by eliminating native ants in New Caledonia and reinforces the idea of common evolutionary traits leading to higher competitiveness in a new environment. Expand
Worldwide invasion by the little fire ant: routes of introduction and eco-evolutionary pathways
TLDR
The evolutionary genetics of introduced populations of the invasive ant Wasmannia auropunctata at a worldwide scale are studied, and it is suggested that invasive clonal populations may have evolved within human modified habitats in the native range, and spread further from there. Expand
Intercontinental chemical variation in the invasive ant Wasmannia auropunctata (Roger) (Hymenoptera Formicidae): a key to the invasive success of a tramp species
TLDR
It is suggested that in New Caledonia W. auropunctata appears to behave as a single supercolony, whereas in its native range it acts as a multicolonial species, and chemical uniformity coupled with low intraspecific but high interspecific aggression lend credence to the latter hypothesis. Expand
Discovery–dominance trade-off among widespread invasive ant species
TLDR
A dominance hierarchy among four of the most problematic invasive ants (Linepithema humile, Lasius neglectus, Wasmannia auropunctata, Pheidole megacephala) that may be able to arrive and establish in the same areas in the future is established. Expand
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