Insect declines are being reported worldwide for flying, ground, and aquatic lineages. Most
reports come from western and northern Europe, where the insect fauna is well-studied and …

Managed bees are critical for crop pollination worldwide. As the demand for pollinator-
dependent crops increases, so does the use of managed bees. Concern has arisen that …

The acute decline in global biodiversity includes not only the loss of rare species, but also
the rapid collapse of common species across many different taxa. The loss of pollinating …

Bumble bees (Bombus) are unusually important pollinators, with approximately 260 wild
species native to all biogeographic regions except sub-Saharan Africa, Australia, and New …

Since the rise of agriculture, human populations have domesticated plant and animal
species to fulfil their needs. With modern agriculture, a limited number of these species has …

Concerns about the rapid and severe declines of many bumble bee (Bombus spp.) species
in Europe, and more recently North America, have spurred research into the extent and …

Large-scale declines in bee abundance and species richness over the last decade have
sounded an alarm, given the crucial pollination services that bees provide. Population dips …

Three species of Vespula have become invasive in Australia, Hawai 'i, New Zealand, and
North and South America and continue to spread. These social wasp species can achieve …

Bumblebees are a diverse group of globally important pollinators in natural ecosystems and
for agricultural food production. With both eusocial and solitary life-cycle phases, and some …

Bumblebees (Bombus) are charismatic and important pollinators. They are one of the best-
studied insect groups, especially in terms of ecology, behavior, and social structure. As …