Clayton and Colleagues (2003)examined the Frequency of Host Shifts Observed

question 14

Multiple Choice

Clayton and colleagues (2003) examined the frequency of host shifts observed among both wing feather and body lice that infect doves.They observed that body lice rarely shift host species,whereas wing feather lice often shift from one species to another.The higher frequency of host shifts observed in wing feather lice is due to the observation that ________.

• A) wing feathers containing lice molt frequently, and are frequently used by other hosts to build nests
• B) body feathers do not come into contact with other hosts as frequently as wing feathers
• C) the lice that infect wing feathers often move from host to host on a parasitic fly
• D) doves preen each other's wing feathers at a higher frequency than body feathers

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