Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/151762
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)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Fathima Zohara Rafi.pdf1.35 MBAdobe PDF

OPEN

NoneView/Download

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.