Predicting the response of Cabomba caroliniana populations to biological control agent damage
Article first published online: 26 SEP 2006
Australian Journal of Entomology
Volume 45, Issue 4, pages 327–330, November 2006
How to Cite
Schooler, S., Julien, M. and Walsh, G. C. (2006), Predicting the response of Cabomba caroliniana populations to biological control agent damage. Australian Journal of Entomology, 45: 327–330. doi: 10.1111/j.1440-6055.2006.00559.x
- Issue published online: 26 SEP 2006
- Article first published online: 26 SEP 2006
- Accepted for publication 17 July 2006.
- aquatic weeds;
- insect damage;
- water fanwort
Abstract Cabomba caroliniana is a submerged aquatic plant from South America that is becoming a serious weed worldwide. It spreads by seed and by fragmentation and has an extremely wide climatic range, invading lakes and ponds from tropical (Darwin, Australia: latitude 12°) to cold temperate regions (Peterborough, Canada: latitude 45°). There are currently no effective methods of managing cabomba infestations and funding has been allocated to research biological methods. Surveys have examined cabomba in its native range and have identified several potential biological control agents. The most promising are a stem boring weevil (Hydrotimetes natans) and an aquatic moth (Paracles spp.). Here we predict the change in cabomba populations after the introduction of the biological control agents. Our predictions are based on quantitative surveys of cabomba populations at three lakes in south-east Queensland, qualitative observations of cabomba in its native range, and conceptual knowledge of how the realised niche of cabomba might be affected by herbivore damage.