Diversity matters: how bees benefit from different resin sources

Area of Science:

• Ecology
• Behavioral Ecology
• Chemical Ecology

Background:

• Biodiversity is linked to consumer biomass and richness.
• Few studies examine how resource diversity impacts individual consumers.
• Plant resins are defensive resources exploited by social bees.

Purpose of the Study:

• To investigate if a single consumer species benefits from diverse resources.
• To test how the protective function of plant resin varies across different sources and target organisms (predators, parasites, pathogens).
• To assess synergistic effects of combining resins from different plant genera.

Main Methods:

• Resins from different plant genera were collected.
• Protective functions were tested against various target organisms.
• Resins were tested individually and in combination to evaluate synergistic effects.

Main Results:

• Resin diversity benefits social bees.
• Functional properties of resins varied based on target organisms, resin type, and composition.
• Mixtures of resins showed greater effectiveness than some single resins, indicating functional complementarity.

Conclusions:

• Different plant resins target distinct organisms and exhibit synergistic effects when combined.
• Social bees gain enhanced protection and benefits from access to diverse resin sources.
• Reduced biodiversity may destabilize consumer populations by limiting access to essential resources.