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 Morgues run out of space as heat wave in Pakistan kills over 1,000 More: EnviroHealthNews advertisement Get a quote Fedhealth - What cover is right for you? 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 Medical Villagers eating dog meat has caused Ebola to resurface in LIberia Medical Weight-loss surgery is more successful than lifestyle changes for type 2 diabetics Medical Order in which food is eaten affects blood sugar Medical Vitamin D supplementation may slow HIV progression Medical Longer schooling slows Aids spread in Botswana Parenting High-achieving children have their parents to thank From our sponsors Soothe your family’s coughs and colds Why hydration is important while exercising Taking charge of your health Man, take care of your health! Live healthier Up for grabs » Win with NuSeed Win with MySmartkid Win a Canderel hamper Win a LED 3D smart TV Stand a chance of winning a Samsung UA55H8000 Smart 55 inch Curved LED TV valued at R20 000 from Save Hyper! Medical marijuana » 'I used cannabis oil to cure my cancer' Could your doctor could be high? Dagga in medicine? Medicinal dagga: the dangers can't be ignored There is not sufficient evidence to support the potential medicinal benefit from cannabis use cautions an academic from Stellenbosch University.