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Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea
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Pollinator effectiveness is affected by intraindividual behavioral variation.

Avery L Russell1,2, Andrea M Fetters3, Elizabeth I James3

  • 1Department of Biology, Missouri State University, 910 S John Q Hammons Pkwy, Temple Hall, Springfield, MO, 65897, USA. averyrussell@missouristate.edu.

Oecologia
|August 15, 2021
PubMed
Summary
This summary is machine-generated.

Pollinator foraging behavior significantly impacts pollen transfer, affecting plant reproduction. Bee body size influences pollen removal, while foraging behavior dictates pollen deposition, with plant traits and pollen load modifying these effects.

Keywords:
Conspecific pollenForaging behaviorHeterospecific pollenInterspecific pollen transferPollination quality

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Behavioral Ecology

Background:

  • Plant-pollinator mutualisms are crucial for ecosystem function.
  • Pollinator foraging behavior varies greatly, but its impact on pollen transfer is understudied.

Purpose of the Study:

  • To investigate how foraging behavior of bumble bees (Bombus impatiens) affects pollen removal and deposition.
  • To examine the influence of bee body size and pollen placement on pollen movement.
  • To understand how these factors interact with plant species characteristics.

Main Methods:

  • Artificial flowers were used to control pollen donation and bee foraging behavior.
  • Captive bumble bees were used to transfer pollen to three recipient plant species.
  • Pollen removal, deposition, and bee body size were quantified.

Main Results:

  • Bee body size primarily influenced pollen removal, while foraging behavior primarily affected pollen deposition.
  • Pollen deposition varied significantly with plant species, particularly those with smaller stigmas.
  • Heterospecific pollen interfered with conspecific pollen deposition on certain plant species.

Conclusions:

  • Intraindividual variation in pollinator foraging behavior is a key driver of pollinator quality.
  • Interactions between bee behavior, pollen load, and floral traits shape plant fitness.
  • Understanding these dynamics is vital for plant reproductive success and evolution.