Sentences with phrase «alpine bumblebee»

When they looked at the flowers visited by the alpine bumblebee species, they found that the bees» favorite flowers had not shifted to a shallower form, but were less prolific.

Overall, they found that the total food resources available to alpine bumblebees had fallen by 60 percent since the 1970s.

Not exact matches

Since bumblebees have co-evolved with the floral resources needed for nutrition, Galen and her colleagues were curious how resident bumblebees were faring in the alpine regions of the Rocky Mountains.

Rising temperatures in alpine habitats worldwide have resulted in declines in flowering among indigenous plants and contributed to dramatic declines in populations of several bumblebee species prevalent in those regions.

They resurveyed bumblebee species in the same alpine locations between 2012 and 2014 and measured their tongue lengths.

If a single, dominant species of bumblebee mainly visits an alpine sunflower, for instance, other pollinators — including other species of bumblebees — are less likely to visit alpine sunflowers.