Tropical pollinators in the canopy and understory: Field data and theory for stratum “preferences”

  title={Tropical pollinators in the canopy and understory: Field data and theory for stratum “preferences”},
  author={David W. Roubik},
  journal={Journal of Insect Behavior},
  • D. Roubik
  • Published 1 November 1993
  • Environmental Science
  • Journal of Insect Behavior
Claims have been made for a canopy preference by large bees pollinating tropical flowers—without data or tests that support or refute this opinion. The working hypothesis for bee foraging behavior in three dimensions is that forager experience can produce stratum fidelity, just as rewarding foraging produces floral fidelity. Wideranging search behavior should allow bees to track spatiotemporal distribution of resources. A systematic study of 20 bee species and 10 genera: Apis, Trigona, Eulaema… 

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