Though they are relatively understudied, non-native bees are ubiquitous and have
enormous potential economic and environmental impacts. These impacts may be positive or …

Although nectar is consumed, primarily as a supplemental food, by a broad range of insects
spanning at least five orders, it is processed and stored by only a small number of species …

Charles Darwin's experiences in the Galápagos Islands in 1835 helped to guide his
thoughts toward a revolutionary theory: that species were not fixed but diversified from their …

A suspected global decline in pollinators has heightened interest in their ecological
significance. In a worst‐case scenario, the decline of generalist pollinators is predicted to …

Most flowering plants establish mutualistic associations with insect pollinators to facilitate
sexual reproduction. However, the evolutionary processes that gave rise to these …

Neotropical orchid bees (Euglossini) are often cited as classic examples of trapline-foragers
with potentially extensive foraging ranges. If long-distance movements are habitual, rare …

Biotic interactions are widely accepted as an important driver of ecological and evolutionary
patterns, contributing to the structure of systems as diverse as tropical tree seedlings …

Plants whose flowers open at night but remain open during the day also attract diurnal
flower visitors, potentially boosting their pollination rates and providing resources that can …

Why do hummingbirds hover while Old World nectar‐feeding birds perch? A unique
opportunity to explore this question is presented by the invasion into Africa of a plant …

A portable, full-color photographic guide to the most commonly seen bees in the western
United States and Canada Bees play a vitally important role in the pollination of native …