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Genetic Strain Diversity of Multi-Host RNA Viruses that Infect a Wide Range of Pollinators and Associates is Shaped by Geographic Origins
Avoiding the introduction of non-native species and diseased pollinators appears important to limit spill overs and disease emergence, and both phylogenies showed strong geographic rather than host-specific clustering, suggesting frequent inter-species virus transmission.
Behavioural variation and plasticity along an invasive ant introduction pathway
- A. Felden, C. Paris, M. Gruber
- Biology, Environmental ScienceThe Journal of animal ecology
- 13 August 2018
The hypothesis that behaviours thought to promote invasiveness-such as increased foraging activity and aggression-are selected for during invasion by comparing traits among native and introduced populations of the widespread Argentine ant is tested, indicating that mechanisms promote behavioural variation in a similar fashion both innative and introduced ranges.
Ergonomics of load transport in the seed harvesting ant Messor barbarus: morphology influences transportation method and efficiency
- A. Bernadou, A. Felden, M. Moreau, P. Moretto, V. Fourcassié
- Environmental ScienceJournal of Experimental Biology
- 15 September 2016
Investigation of load transportation efficiency in ants shows that it depends on both their morphology and the transportation method they use, i.e. carrying or dragging.
Learning and discrimination of cuticular hydrocarbons in a social insect
The results show that tri-methyl alkanes are more easily learned than single-methyl or straight-chain alkanes, and that Argentine ants can discriminate between hydrocarbons with different branching patterns and the same chain length.
Ant queens (Hymenoptera: Formicidae) are attracted to fungal pathogens during the initial stage of colony founding
Ant queens that attempt to disperse and found new colonies independently face high mortality risks. The exposure of queens to soil entomopathogens during claustral colony founding may be particularly…
Different bacterial and viral pathogens trigger distinct immune responses in a globally invasive ant
Invasive species populations periodically collapse from high to low abundance, sometimes even to extinction. Pathogens and the burden they place on invader immune systems have been hypothesised as a…
Viral and fungal pathogens associated with Pneumolaelaps niutirani (Acari: Laelapidae): a mite found in diseased nests of Vespula wasps
It is indicated that mites can harbour both viruses and fungi that infect wasps, providing avenues of research into biological control using mites as infection vectors.
Viruses and their effects in ants (Hymenoptera: Formicidae)
It is suggested that horizontal transmission is a common mode of infection in ants as they share food via trophallaxis, although vertical transmission of viruses in eggs from queens has been observed, and approaches for viral discovery in invasive ants that focus on colony monitoring in their native range are recommended.
Native and introduced Argentine ant populations are characterised by distinct transcriptomic signatures associated with behaviour and immunity
Genes associated with biogenic amines were overall up-regulated in the native range compared to introduced populations and viral diversity was lower in most of the introduced range which was interestingly associated with down-regulation of the RNAi immune pathway, primarily directed against viruses.
Viral communities in the parasite Varroa destructor and in colonies of their honey bee host (Apis mellifera) in New Zealand
The presence and likely introduction of only one V. destructor haplotype in New Zealand is confirmed, the viral community within both V.destructor mites and the bees that they parasitise are described, and substantial more variation in viral loads was observed in bees compared to mites.