A direct measure of pollinator effectiveness
- Cite this article as:
- Spears, E.E. Oecologia (1983) 57: 196. doi:10.1007/BF00379581
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Pi=mean number of seeds set/flower by a plant population receiving a single visit from species i
Z=mean number of seeds set/flower by a population receiving no visitation.
U=mean number of seeds set/flower by a population receiving unrestrained visitation.
The utility and limitations of the proposed measure are discussed and exemplified with a population of Ipomoea trichocarpa (Convoculaceae)