In 1986 a catastrophic nuclear accident in the Ukraniancity of Chernobyl exposed the surrounding area to largeamounts of radiation. Since then, scientists have beeninvestigating the aftereffects on plants, animals, andhumans. A 2007 study examined 841 barn swallowsthere, noting the incidence of deformed toes and beaks, abnormal tail feathers, deformed eyes, tumors, and albi-nism (a condition that involves discoloration of the birds’ plumage). Previous studies involving thousands of barn swallows in Spain, Italy, and Denmark had seen albi-nism in 4.35% of this species, yet 112 of the Chernobyl swallows displayed the condition.a) Is there evidence that the albinism rate is higheramong Chernobyl barn swallows? b) What does this study tell us about the effect of nu-clear contamination on barn swallows?

Practical Management Science
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Author:WINSTON, Wayne L.
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In 1986 a catastrophic nuclear accident in the Ukranian
city of Chernobyl exposed the surrounding area to large
amounts of radiation. Since then, scientists have been
investigating the aftereffects on plants, animals, and
humans. A 2007 study examined 841 barn swallows
there, noting the incidence of deformed toes and beaks,
abnormal tail feathers, deformed eyes, tumors, and albi-
nism (a condition that involves discoloration of the birds’
plumage). Previous studies involving thousands of barn
swallows in Spain, Italy, and Denmark had seen albi-
nism in 4.35% of this species, yet 112 of the Chernobyl
swallows displayed the condition.
a) Is there evidence that the albinism rate is higher
among Chernobyl barn swallows?
b) What does this study tell us about the effect of nu-
clear contamination on barn swallows?
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