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SUMMARY:Butterfly defense against predation - Christer Wiklund - Stockholm
  University\, Sweden
DTSTART:20121127T160000Z
DTEND:20121127T170000Z
UID:TALK40464@talks.cam.ac.uk
CONTACT:Oskar Brattstrom
DESCRIPTION:Butterfly defense against predation has played an important ro
 le in Evolutionary Biology – Bates’ 1862 discovery of how perfectly pa
 latable butterflies mimicked nauseous models\, was instrumental in convinc
 ing the scientific community of the driving force of evolution by means of
  natural selection in accordance with Darwin’s 1859 theory. \n\nBecause 
 the evolution of Batesian mimicry presented evolutionary biologists with a
  problem – what’s in it for the first mutant mimic?– much scientific
  enquiry has been devoted to solving the ”mystery of mimicry” ever sin
 ce Ronald Fisher’s first attempts in 1930 - a field which is intensively
  active to this very day. \n\nBut mimicry is only one way in which butterf
 lies defend themselves against predators\, and I will focus on these other
  means - in particular how harmless and palatable butterflies escape preda
 tion through primary defense (by not being attacked) by means of crypsis\,
  masquerade and dazzle coloration\, or through secondary defense (after be
 ing discovered and attacked) by means of exposing eyespots that can have a
  deflective or intimidating function depending on the size of these eyespo
 ts. \n\nMuch of my talk will be focused on experiments in which I have sta
 ged trials between bird or rodent predators against living butterflies\, a
 nd I will show some video clips of predators and prey to illustrate these 
 interactions.
LOCATION:Part II Lecture Theatre\, Department of Zoology
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