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Painted Lady Butterflies and the Proboscis

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  6. Painted Lady Butterflies and the Proboscis
Author(s)
  • Valerie Kramer
Abstract

Most butterflies and moths consume liquids using a proboscis, which is a conduit composed of different structures. The purpose of this study was to determine if proboscis structures of Painted lady butterflies (Vanessa cardui) show allometric growth relationships with body weights and proboscis lengths. We hypothesized that potential differences in structural configurations might affect fluid uptake rates. To test this, we fed larvae different treatments of artificial diet to prompt size differences in adults. We measured six proboscis characters and used the allometric growth equation. There was a significant allometric relationship among the measured characters and body weight and proboscis length; however, there was a lack of significance when fluid uptake rate was considered the dependent variable of measured characters, even though trends indicated positive allometry. Our results indicate the presence of allometric relationships in proboscis structures; however, these changes do not greatly influence fluid uptake rates.

Format
Conference Proceeding
Publication Date
2015-04-24
Subject
  • Biology
Comments

Valerie Kramer is a freshman studying organismal biology. She has been working with Dr. Lehnert all year on this project and is happy to be presenting for Kent State Stark. She presented this research at the Association of Southeastern Biologists research conference in Chattanooga, Tennessee April 1-4 this year. She will be presenting this at the Lepidopterists Society later this summer. When she’s not in class or in the lab, she works in the Recreation & Wellness Center and plays roller derby.

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