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|Title:||HOW NUMBER AND UV REFLECTIVITY OF BUTTERFLY EYESPOTS AFFECT PREDATION IN THE WILD||Authors:||FATHIMA ZOHARA RAFI||ORCID iD:||orcid.org/0000-0002-1018-6705||Keywords:||Bicyclus anynana, Eyespot number, UV reflectivity, Predation, Paper models||Issue Date:||24-Aug-2018||Citation:||FATHIMA ZOHARA RAFI (2018-08-24). HOW NUMBER AND UV REFLECTIVITY OF BUTTERFLY EYESPOTS AFFECT PREDATION IN THE WILD. ScholarBank@NUS Repository.||Abstract:||Butterfly eyespots play roles in sexual and natural selection. Bicyclus anynana (Lepidoptera: Nymphalidae) is a widely used model in evolutionary and developmental biology and is part of a highly diversified subtribe (Mycalesina). Previous work established the role of ventral eyespots in Bicyclus in predator avoidance with many similar studies. However, the role of variation in eyespot number, prevalent across Mycalesina, in warding off predators is unknown and therefore tested in this study with paper models deployed in the wild. The natural model of B. anynana was manipulated to create an extra pair of eyespots on the forewing and the UV reflectivity of eyespot pupils were blocked to test for the first time how this trait affects predation risk in the wild. Thus, four types of model were tested for relative predation risk in three sites: Singapore, Thailand and Sri Lanka where species belonging to the sister genus Mycalesis are naturally present. The number of eyespots and UV reflectivity were not significant predictors of predation, but their interaction was significant in all sites. Eyespot number and UV signals showed a non-additive effect on predation risk. This study shows how variation in eyespot number and UV reflectivity is maintained in the wild.||URI:||http://scholarbank.nus.edu.sg/handle/10635/151762|
|Appears in Collections:||Master's Theses (Open)|
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