Mutualistic interactions are diverse and widespread and often involve multispecies guilds of
mutualists competing for access to one or more partner species. Despite the ubiquity of …

Bumblebees are familiar and charismatic insects, occurring throughout much of the world.
They are increasingly being used as a model organism for studying a wide range of …

Morphologically complex flowers are characterized by bilateral symmetry, tube-like shapes,
deep corolla tubes, fused petals, and/or poricidal anthers, all of which constrain the access …

The majority of species of flowering plants rely on pollination by insects, so that their
reproductive success and in part their population structure are determined by insect …

We compared pollen removal and deposition by hummingbirds and bumblebees visiting
bird‐syndrome Penstemon barbatus and bee‐syndrome P. strictus flowers. One model for …

Insect pollinators are essential for both the production of a large proportion of world crops
and the health of natural ecosystems. As important pollinators, bumblebees must learn to …

Many floral displays are visually complex, transmitting multi‐coloured patterns that are
thought to direct pollinators to nectar rewards. These 'nectar guides' may be mutually …

Pollinators often sequentially visit one flower type while bypassing other equally rewarding
flower types in the process. Many explanations for this pattern of flower choice in pollinators …

The generalization–specialization continuum exhibited in pollination interactions currently
receives much attention. It is well‐known that the pollinator assemblage of particular species …

Parasites can affect host behavior in subtle but ecologically important ways. In the
laboratory, we conducted experiments to determine whether parasitic infection by the …