The killer tomato-pollinators

Some of Britain's bumblebee population (of 25 species) may be under threat from importation of Bombus terrestris dalmatinus for commercial greenhouse tomato pollination. The problem is that the imports are escaping out the glass house windows and are viable in the wild.

“Their superior foraging ability and large colony size could endanger native bumble bees through competitive displacement or hybridization.” says Tom Ings, an ecologist at Queen Mary, University of London.

And he's done some experiments that support his concerns.