ArticleProceedings. Biological sciences2005
Interactions between intrinsic and extrinsic mechanisms in a cyclic species: testosterone increases parasite infection in red grouse.
Article in Proceedings. Biological sciences, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 61 citations in OpenAlex.
- Influence of Testosterone in Neglected Tropical Diseases: Clinical Aspects in Leprosy and In Vitro Experiments in Leishmaniasis.Tropical medicine and infectious disease · 2023Article
- Disease Prevalence and Fatality, Life History Strategies, and Behavioral Control of the COVID Pandemic.Evolutionary psychological science · 2022Article
- Density-dependent sex ratio and sex-specific preference for host traits in parasitic bat flies.Parasites & vectors · 2017Article
- Reciprocal relationships between behaviour and parasites suggest that negative feedback may drive flexibility in male reproductive behaviour.Proceedings. Biological sciences · 2016Article
- Mechanisms underlying parasite infection: influence of host body mass and age on chewing louse distribution among brown-headed cowbirds.Parasitology research · 2015Article
- Fine-scale population epigenetic structure in relation to gastrointestinal parasite load in red grouse (Lagopus lagopus scotica).Molecular ecology · 2014Article
- The effect of spatial heterogenity on the aggregation of ticks on white-footed mice.Parasitology · 2012Article
- Condition- and parasite-dependent expression of a male-like trait in a female bird.Biology letters · 2011Article
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- Honest sexual signalling mediated by parasite and testosterone effects on oxidative balance.Proceedings. Biological sciences · 2009Article
- Physiological stress mediates the honesty of social signals.PloS one · 2009Article
- Anti-parasite treatment removes negative effects of environmental pollutants on reproduction in an Arctic seabird.Proceedings. Biological sciences · 2006Article
- Interactions between population processes in a cyclic species: parasites reduce autumn territorial behaviour of male red grouse.Oecologia · 2005Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Field studies of mechanisms involved in population regulation have tended to focus on the roles of either intrinsic or extrinsic factors, but these are rarely mutually exclusive and their interactions can be crucial in determining dynamics. Experiments on red grouse Lagopus lagopus scoticus have shown that population instability can be caused both by the effects of a parasitic nematode, Trichostrongylus tenuis, on host production or by changes in testosterone influencing aggressive behaviour and recruitment. We experimentally tested for an interaction between testosterone and T. tenuis in free-living male grouse. A total of 123 grouse were caught in autumn, treated with an anthelmintic to remove parasites, and then given either testosterone or empty, control, implants. After one month grouse were re-infected with a standard dose of parasites. We show that males with increased testosterone levels had greater parasite intensities than controls after one year. We discuss possible physiological and behavioural mechanisms linking testosterone and increased parasite intensity, and the implications for our understanding of complex, unstable population dynamics.
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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.