Dr Dominique Zimmermann poses in undated photo. She was part of a group of researchers who investigated the fauna at the Sandberge Oberweiden conservation area in Lower Austria's Marchfeld region. (Minitta Kandlbauer, NewsX/Bee)
Picture shows Kongresssiedlung estate, in Vienna, Austria, undated. The tenants at the estate have convinced officials to reconsider their strict lawn-mowing procedures to support the flora and fauna. (NewsX/Bee)
Martina Pillitsch poses in undated photo. She and her husband Alexander run a hobbyist apiary in Sommerein, a small town 20 kilometres (12 miles) south of Vienna International Airport (VIA). (NewsX/Bee)
Picture shows Dominik Linhard - who works for Vienna-based organisation Global 2000, undated. Speaking to NewsX, Dominik criticised the ongoing sealing of soils in Austria as construction projects often diminish the habitat of various animals including pollinators like bees. (NewsX/Bee)
Picture shows graduated engineer Harald Brugger from the Vienna-based Umweltberatung consulting agency, undated. He warned that anyone getting too close to a nest of the invasive species was at high risk of getting stung "several times." (NewsX/Bee)
Picture shows propolis in a beehive, undated. Propolis is a resin that bees create which contains a mixture of bee saliva, beeswax and substances from plants. (NewsX/Bee)