Increased mortality of black-browed albatross chicks at a colony heavily-infested with the tick Ixodes uriae |
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Authors: | Bergström S Haemig P D Olsen B |
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Affiliation: | Department of Microbiology, Ume? University, Sweden. |
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Abstract: | At Bird Island, South Georgia, we studied the effects of the tick Ixodes uriae on survival of chicks at two colonies of the black-browed albatross Diomedea melanophrys, one where most chicks were infested with ticks, the other where most chicks were tick-free. When the two colonies were compared, it was found that the colony heavily-infested with ticks had significantly greater chick mortality than the colony lightly-infested with ticks. However, within each of the two colonies, there was no significant difference in survival between chicks with ticks and those without ticks. |
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