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Predation and Parasitism of the Kamehameha Butterfly (Vanessa tameamea) on Oahu Island.

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Title:Predation and Parasitism of the Kamehameha Butterfly (Vanessa tameamea) on Oahu Island.
Authors:Maeda, Colby T. L.
Contributors:Entomology (department)
Keywords:Kamehameha butterfly
Lepidoptera conservation
Date Issued:Aug 2017
Publisher:University of Hawaiʻi at Mānoa
Abstract:Hawaii’s official state insect, the Kamehameha butterfly (Vanessa tameamea), is one of
only two butterflies native to the Hawaiian Islands. Recently, this iconic butterfly has
experienced a population decline and is not present in areas where it once thrived. Since little
research has been previously conducted on the butterfly, past studies on other declining
Lepidoptera species were examined to gain insight into what factors may be affecting
Kamehameha butterfly populations. A rearing methodology for V. tameamea was also developed
because sentinel eggs and larvae were needed for field trials, and to provide a basis for future
conservation programs. Predation and parasitism rates of V. tameamea were estimated using
sentinel eggs and larvae that were deployed for three days under various treatments at four sites
on Oahu, Hawaii. Data was analyzed using risk assessment analysis and binomial logistic
regression. Bird predation and ant predation varied by site, and parasitism was detected at only
one site. In conclusion, results showed that the butterfly could potentially be reintroduced to
areas where they are currently extirpated, if certain controls are implemented, and if other factors
(such as host plant scarcity or habitat quality) are not limiting.
Description:M.S. Thesis. University of Hawaiʻi at Mānoa 2017.
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections: M.S. - Entomology

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