Disease susceptibility in California sea lions

Evidence from a wide range of research has indicated that inbreeding within animal populations can lead to substantial increases in their susceptibility to pathogens. Findings are reported from a study investigating rescued California sea lions (Zalophus californianus) impacted by a variety of diffe...

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Veröffentlicht in:Nature (London) 2003-03, Vol.422 (6927), p.35-35
Hauptverfasser: Acevedo-Whitehouse, Karina, Gulland, Frances, Greig, Denise, Amos, William
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creator Acevedo-Whitehouse, Karina
Gulland, Frances
Greig, Denise
Amos, William
description Evidence from a wide range of research has indicated that inbreeding within animal populations can lead to substantial increases in their susceptibility to pathogens. Findings are reported from a study investigating rescued California sea lions (Zalophus californianus) impacted by a variety of different pathogens. Results from the study indicated that sick animals typically exhibited a higher-than-normal level of parental relatedness. These findings suggested that mortality patterns in natural populations of wild animals may not be entirely random. Evidence also suggested that inbred individuals may sesrve as more effective reservoirs of infectious agents. Implications of these findings for the debate over the role of genetics in demography and conservation are discussed.
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source Nature; Alma/SFX Local Collection
subjects Bacterial infections
Cancer
Generalized linear models
Infections
Infectious diseases
Marine mammals
Mortality
Pathogens
Sea lions
Variance analysis
title Disease susceptibility in California sea lions
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