Emission rates of species-specific volatiles vary across communities of Clarkia species: evidence for multi-modal character displacement

Katherine Eisen, Monica Geber & Robert Raguso
A current frontier of character displacement research is to determine if displacement occurs via multiple phenotypic pathways and varies across communities with different species compositions. Here, we conducted the first test for context-dependent character displacement in multi-modal floral signals by analyzing variation in floral scent in a system that exhibits character displacement in flower size, and that has multiple types of sympatric communities. In a greenhouse common garden experiment, we measured quantitative variation in volatile...
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