Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Entire DC Network
Coexistence Of Sympatric Taxa Of Chamaecrista Section Xerocalyx: Addressing The Interplay Between Morphology And Biotic Interactions, Beatriz Baker-Méio
Coexistence Of Sympatric Taxa Of Chamaecrista Section Xerocalyx: Addressing The Interplay Between Morphology And Biotic Interactions, Beatriz Baker-Méio
Dissertations
Animal-plant interactions may prevent gene flow and promote divergent selection among closely related plants, ultimately leading to formation of new species. This may be the case for Chamaecrista sect. Xerocalyx, in which two or more of the 24 varieties often are encountered in the same area, with marked morphological and phenological differences among them. Over a broad geographical range, however, the morphological gaps among varieties disappear. Several biotic interactions contribute to the fitness of Chamaecrista species. Their flowers are pollinated by bees, and herbivores attack their leaves, flowers, fruits, and seeds. In addition, all species produce extrafloral nectar, which …