Urban areas are growing worldwide and alter landscapes in a persistent fashion, thereby
affecting biodiversity and ecosystem services such as pollination in a little understood way …

Urban landscapes are spatially constrained, and vegetative land uses that provide
beneficial ecosystem services are difficult to maintain. Urban agricultural (UA) systems …

Research on urban insect pollinators is changing views on the biological value and
ecological importance of cities. The abundance and diversity of native bee species in urban …

While technological progress has fostered the conception of an urban society that is
increasingly decoupled from ecosystems, demands on natural capital and ecosystem …

Green spaces embedded within the urban matrix, particularly residential yards, could
mitigate negative aspects of urban development and provide pollinator habitat. Lawns …

Simple Summary Cities are complex ecosystems that, while generally contributing to an
overall reduction in biodiversity, can support surprisingly unique communities of organisms …

Background Wild bees are important pollinators that have declined in diversity and
abundance during the last decades. Habitat destruction and fragmentation associated with …

Declines in bumble bee species in the past 60 years are well documented in Europe, where
they are driven primarily by habitat loss and declines in floral abundance and diversity …

Urban environments are often seen as unique or degraded habitats that both present
hardships for some sensitive species and provide opportunities to others. Non-indigenous …

We review evidence from around the world for bumblebee declines and review
management to mitigate threats. We find that there is evidence that some bumblebee …