Home > Lifestyle > EnviroHealth > News 28 March 2013 Insects plentiful in hot parts of cities Higher temperatures in cities can be a key driver of insect pest outbreaks on trees in urban areas, according to research. 0 iStock Related When trees die off human health will suffer Insect bites What is global warming? Start A Health24 blog » Follow Health24 on Facebook » Test Are you envirohealth savvy? » Ask EnviroHealth Expert » Shark feeding frenzy caught on camera The recycling headache list Higher temperatures in cities can be a key driver of insect pest outbreaks on trees in urban areas, according to research published in the open access journal PLOS ONE by Emily Meineke from North Carolina State University and colleagues from other institutions.The researchers found that a scale insect that exclusively feeds on oak trees was 13 times more abundant on willow oaks in the hottest parts of the city of Raleigh, North Carolina than in cooler areas of the same city, even when other factors, like natural enemies that would kill the insects, were similar in both areas. In a second experiment, they found scale insects collected from trees in hot areas had higher survival rates in hot greenhouses than in cool ones. However, insects originally from cooler urban areas remained low in number in both hot and cool greenhouses. Urban warming leads to higher pest abundanceThe researchers found no differences in the rates of reproduction of insects in any of these groups. Thus, they suggest that the differences in abundance may be a result of differences in survival rather than a higher reproductive capacity.Urbanisation of an area changes the species that dwell in it. Previous studies have analysed these effects in terms of loss of resources or changes to habitat, but this is the first research to focus on the effects of "heat islands" created in cities. Meineke explains that, "Urban warming can lead to higher insect pest abundance, a result of pest acclimation or adaptation to higher temperatures."The study concludes that since current urban warming is similar in magnitude to the higher temperatures predicted by global warming in the next fifty years, their results may indicate potential changes in pest abundance as natural forests also grow warmer. EurekAlert More in Lifestyle The poor animals caught in the Cape Fire More: EnviroHealthNews SPONSORED: So many prizes! Click through and see our fantastic competitions. advertisement Get a quote Momentum - save up to 35% on healthcare advertisement Read Health24’s Comments Policy Comment on this story 0 comments Add your comment Thank you, your comment has been submitted. Logout Comment 0 characters remaining Share on Facebook Logout Comment 0 characters remaining Share on Facebook Loading comments... Other news Sex Divorce more likely when wives get sick Diet and nutrition The dangers of the diet pill Duromine Mental health Mom found guilty of killing 5-year-old son with salt Medical Spider venom may hold key to new painkillers Diet and nutrition Why fried foods are bad for your heart Medical What kills more women than Aids and breast cancer? Dirty water From our sponsors What's this about vitamin B? Independent studies have proved once again that EPO significantly improves symptoms of atopic eczema JJ & Associates offers gents' health– the first medical practice of its kind Live healthier Safety first » Those training for Cycle Tour at risk of flu How to cycle Support the Cycle Tour in style Safety tips for cyclists The Cape Town Cycle Tour is upon us. Here are some tips on how to stay safe. Hit the road » Advice for the long runner Hill training: how to do it Why running is good for you What to wear when you run You do not need a gym membership to run. All you need is the correct clothing and you're ready to reap the benefits.