Pollinator Specificity in Lantana camara and L. trifolia (Verbenaceae)

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Abstract
Censuses of the lepidopteran pollinators of 2 sympatric, tropical shrubs, L. camara and L. trifolia, demonstrated that pollinator species were generally specific to one or the other plant species. Large butterfly species were predominant at L. camara and small species at L. trifolia. This specificity is probably a result of divergence in floral characters which differentially affects the foraging efficiency of large and small butterflies. Significant differences between L. trifolia and L. camara in inflorescence diameter, number of nectar flowers per inflorescence, and corolla length are discussed in relation to their role in partitioning the pollinator fauna.

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