Wolbachia, Cardinium and climate: an analysis of global data.
The Royal Society
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Charlesworth, J., Weinert, L., Araujo, E., & Welch, J. (2019). Wolbachia, Cardinium and climate: an analysis of global data.. Biology letters, 15 (8), 20190273. https://doi.org/10.1098/rsbl.2019.0273
Bacterial endosymbionts are very common in terrestrial arthropods, but infection levels vary widely among populations. Experiments and within-species comparisons suggest that environmental temperature might be important in explaining this variation. To investigate the importance of temperature, at broad geographical and taxonomic scales, we extended a global database of terrestrial arthropods screened for Wolbachia and Cardinium. Our final dataset contained data from >117,000 arthropods (>2,500 species) screened for Wolbachia and >18,000 arthropods (>800 species) screened for Cardinium, including samples from 137 different countries, with mean temperatures varying from -6.5 to 29.2°C. In insects and relatives, Cardinium infection showed a clear and consistent tendency to increase with temperature. For Wolbachia, a tendency to increase with temperature in temperate climates, is counteracted by reduced prevalence in the tropics, resulting in a weak negative trend overall. We discuss the implications of these results for natural and introduced symbionts, in regions affected by climate change.
Animals, Arthropods, Bacteroidetes, Wolbachia, Symbiosis, Insecta
WELLCOME TRUST (109385/Z/15/Z)
External DOI: https://doi.org/10.1098/rsbl.2019.0273
This record's URL: https://www.repository.cam.ac.uk/handle/1810/294960
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