Title How climate change will
make management of invasive species such as the Harlequin ladybird (Harmonia
axyridis) a significant challenge.
K. A.; Simpson,
Author Affiliation Crop &
Soil Systems, SAC, West Mains Road, Edinburgh EH9 3JG, UK.
Journal article Aspects
of Applied Biology 2010 No. 104 pp. 29-35
Association of Applied Biologists, Wellesbourne, UK
Language of Text English
The Harlequin ladybird (Harmonia axyridis) is a biological control
agent 'gone wrong' in that as well as being an effective predator of aphids, it
will also feed on native coccinellid species in the UK, and is likely to out
compete many native coccinellids, primarily through resource competition and
intra-guild predation. It has already invaded the UK and its potential spread
under current and future climates is predicted using CLIMEX models based on its
response to climatic stress factors such as temperature, rainfall and induction
of diapause. By 2050, whether using low or medium emissions climate change
scenarios, H. axyridis has the potential to spread throughout most of
Europe and the UK. Factors that can affect its establishment are discussed.