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Effects of Environmental Heterogeneity on Male-Male Competitive Success, Size, and Scaling in a Cactus Bug Narnia femora...
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Permanent Link: http://ufdc.ufl.edu/UF00091523/00585
 Material Information
Title: Effects of Environmental Heterogeneity on Male-Male Competitive Success, Size, and Scaling in a Cactus Bug Narnia femorata (Hemiptera: Coreidae)
Series Title: Journal of Undergraduate Research
Physical Description: Serial
Language: English
Creator: Nageon de Lestang, Fae
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 2010
 Notes
Abstract: The effects of environment on sexual selection, specifically male competition, have yet to be fully explored. We examined the effects of natural environmental heterogeneity on male scaling, size, and competitive success in a cactus bug, Narnia femorata. Male N. femorata were raised in two alternate environments (cactus with fruits and cactus without fruits) from the fifth instar and checked daily until they reached adulthood. Males raised in a treatment with both cactus pads and fruit developed faster and weighed more overall. Upon reaching sexual maturity, a subset of males was randomly chosen, paired by treatment, and placed with a virgin female. Then their behaviors were recorded for time intervals over a period of 110 minutes. We observed matings in 8 of 29 contests, all by males raised in the treatment with both cactus pads and fruit. Noneof the males raised on a treatment of just cactus pads mated. Successful males were larger and expressed relatively larger sexually-selected traits for their body size. These results suggest that natural environmental variation has a significant effect on male competitive success for the species.
 Record Information
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
System ID: UF00091523:00585

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