Mate Discrimination in Invasive Whitefly Species |
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Authors: | David W Crowder Michael I Sitvarin Yves Carrière |
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Institution: | (1) Department of Entomology, University of Arizona, Tucson, AZ, USA;(2) Department of Entomology, Washington State University, 166 FSHN Bldg., PO BOX 646382, Pullman, WA 99164, USA;(3) Department of Zoology, Miami University, Oxford, OH, USA |
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Abstract: | Mate discrimination could be critical for invasive species that need to locate rare suitable mates and avoid costs associated
with misdirected courtships to establish in new environments. Here, we tested whether individuals of two invasive whitefly
species in the Bemisia tabaci species complex, commonly known as the B and Q biotypes, could discriminate between potential mates based on their species
and sex. Behavioral observations showed that B females were more discriminating than Q females. Males of both species were
able to discriminate between mates based on their species and sex, but in general B males discriminated more effectively than
Q males. By incorporating these behavioral data into a conceptual model, we show that variation in mating behavior between
females of different species was a more significant factor affecting mating than variation between males. These results indicate
that mate discrimination could affect interactions between whitefly species and influence a species’ ability to colonize novel
environments. |
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