Loss rates of honey bee colonies during winter 2017/18 in 36 countries participating in the COLOSS survey, including effects of forage sources

od Gray, Alison, honey bees., Brodschneider, Robert., Adjlane, Noureddine., Ballis, Alexis., Brusbardis, Valters., Charriere, Jean-Daniel., Chlebo, Robert., Coffey, Mary F., Cornelissen, Bram., Gregorc, Aleš.