Simple Summary There is a rising demand for food security in the face of threats posed by a
growing human population. Bees as an insect play a crucial role in crop pollination …

Bumblebees are ubiquitous, cold‐adapted eusocial bees found worldwide from subarctic to
tropical regions of the world. They are key pollinators in most temperate and boreal …

A unique and personal insight into the ecology and evolution of pollinators, their
relationships with flowers, and their conservation in a rapidly changing world. The …

Bumble bees are globally important pollinators, especially in temperate regions, and
evidence suggests that many species are declining. One recent high profile study by Soroye …

Contemporary climate change is exposing plant populations to novel combinations of
temperatures, drought stress,[CO 2] and other abiotic and biotic conditions. These changes …

Species range expansions are crucial for understanding niche formation and the interaction
with the environment. Here, we studied the bumblebee Bombus haematurus Kriechbaumer …

Simple Summary Populations of some bumble bee species have declined over the last
decade. Recognizing the importance of bumble bees to agriculture and natural ecosystems …

Monitoring insect genetic diversity and population structure has never been more important
to manage the biodiversity crisis. Citizen science has become an increasingly popular tool to …

Highlights•Complementary sex determination leads to inbreeding costs in social
Hymenoptera.•Traits preserving sex locus diversity after founder events increase invasive …

Genetic bottlenecks can limit the success of populations colonizing new ranges. However,
successful colonizations can occur despite bottlenecks, a phenomenon known as the …