ArticleProceedings. Biological sciences2009
Ageing in a variable habitat: environmental stress affects senescence in parasite resistance in St Kilda Soay sheep.
Article in Proceedings. Biological sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
37 citing papers in PubMed, 94 citations in OpenAlex.
- Divergent age-related changes in parasite infection occur independently of behaviour and demography in a wild ungulate.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Article
- Using non-invasive behavioral and physiological data to measure biological age in wild baboons.GeroScience · 2024Article
- Age-specific impacts of vegetation functional traits on gastrointestinal nematode parasite burdens in a large herbivore.The Journal of animal ecology · 2023Article
- Long-term temporal trends in gastrointestinal parasite infection in wild Soay sheep.Parasitology · 2022Article
- Functionally distinct T-helper cell phenotypes predict resistance to different types of parasites in a wild mammal.Scientific reports · 2022Article
- Longitudinal dynamics of co-infecting gastrointestinal parasites in a wild sheep population.Parasitology · 2022Article
- Reproductive females and young mouflon (Parasitology · 2021Article
- Examining adaptive evolution of immune activity: opportunities provided by gastropods in the age of 'omics'.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- Helpers compensate for age-related declines in parental care and offspring survival in a cooperatively breeding bird.Evolution letters · 2021Article
- Experimentally constrained early reproduction shapes life history trajectories and behaviour.Scientific reports · 2021Article
- The relationship between fleas and small mammals in households of the Western Yunnan Province, China.Scientific reports · 2020Article
- Both candidate gene and neutral genetic diversity correlate with parasite resistance in female Mediterranean mouflon.BMC ecology · 2019Article
- Seasonality of helminth infection in wild red deer varies between individuals and between parasite taxa.Parasitology · 2018Article
- A genetics-based approach confirms immune associations with life history across multiple populations of an aquatic vertebrate (Gasterosteus aculeatus).Molecular ecology · 2018Article
- Chronic helminth infection burden differentially affects haematopoietic cell development while ageing selectively impairs adaptive responses to infection.Scientific reports · 2018Article
- Age, state, environment, and season dependence of senescence in body mass.Ecology and evolution · 2018Article
- Survival of adult Steller sea lions in Alaska: senescence, annual variation and covariation with male reproductive success.Royal Society open science · 2018Article
- Article
- Early-life environment and differences in costs of reproduction in a preindustrial human population.PloS one · 2018Article
- Immunosenescence patterns differ between populations but not between sexes in a long-lived mammal.Scientific reports · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
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 experience an increase in parasite burden, as indicated by gastrointestinal helminth faecal egg count (FEC) with chronological age. However, chronological age fails to fully explain changes in FEC because a measure of environmental age, cumulative environmental stress, predicts an additional increase in FEC once chronological age has been accounted for. Additionally, we show that in females age-specific changes are dependent upon the environmental conditions experienced across individuals' life histories: increases in FEC with age were greatest among individuals that had experienced the highest degree of stress. Our results illustrate that chronological age alone may not always correspond to biological age, particularly in variable environments. In these circumstances, measures of age that capture the cumulative stresses experienced by an individual may be useful for understanding the process of senescence.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.