J. Neumayer

North-westward range expansion of the bumblebee Bombus haematurus into Central Europe is associated with warmer winters and niche conservatism

This study shows that Bombus haematurus expanded its range northward into Central Europe due to warmer winters, without significant niche shifts.

Species composition and altitudinal distribution of bumble bees (Hymenoptera: Apidae: Bombus) in the East Himalaya, Arunachal Pradesh, India

The paper surveys bumble bee species in the East Himalaya, finding 21 species and highlighting altitudinal diversity patterns.