26 septiembre 2014
Tree bumblebee populations could be spreading because the bees readily live alongside humans in towns and villages. This sets the species apart from other common British bumblebees — which could explain how tree bumblebees have managed to colonize much of the UK while many other bumblebee species have been declining.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wAqagXYVhEc/140926150449.htm
