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Ageing in a variable habitat: Environmental stress affects senescence in parasite resistance in St Kilda Soay sheep

Hayward, Adam D.; Wilson, Alastair J.; Pilkington, Jill G.; Pemberton, Josephine M; Kruuk, Loeske


Despite widespread empirical evidence for a general deterioration in the majority of traits with advancing age, it is unclear whether the progress of senescence is chronologically determined, or whether factors such as environmental conditions experienced over the lifespan are more important.We explored the relative importance of 'chronological' and 'environmental' measures of age to changes in parasite resistance across the lifespan of free-living Soay sheep. Our results show that individuals...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Proceedings of the Royal Society of London Series B: Biological Sciences
DOI: 10.1098/rspb.2009.0906


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