ArticleProceedings. Biological sciences2019
Annual environmental variation influences host tolerance to parasites.
Article in Proceedings. Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Host-pathogen interactions under pressure: A review and meta-analysis of stress-mediated effects on disease dynamics.Ecology letters · 2023Pooled it
- Co-infection with a viral pathogen (Theiler's murine encephalomyelitis virus) tended to improve host tolerance but significantly enhanced resistance to Heligmosomoides bakeri.Veterinary research communications · 2026Article
- Kinship Analysis Confirms Tolerant Galapagos Mockingbirds Are a Source of Nest Flies That Threaten Darwin's Finches.Molecular ecology · 2026Article
- Temporal Variation in Early-Life Conditions Impacts on Later-Life Levels of Infection in Sex Specific Ways.Ecology and evolution · 2025Article
- Chigger mite (Ecology and evolution · 2023Article
- Parental food provisioning and nestling growth underJournal of ornithology · 2023Article
- Avian vampire fly (Philornis downsi) mortality differs across Darwin's finch host species.Scientific reports · 2021Article
- Epigenetic effects of parasites and pesticides on captive and wild nestling birds.Ecology and evolution · 2021Article
- Urban living influences the nesting success of Darwin's finches in the Galápagos Islands.Ecology and evolution · 2021Article
- Cold water reduces the severity of parasite-inflicted damage: support for wintertime recuperation in aquatic hosts.Oecologia · 2021Article
- Parental care in the Small Tree FinchThe Ibis · 2021Article
- Parasitism by an invasive nest fly reduces future reproduction in Galápagos mockingbirds.Oecologia · 2020Article
- Annual environmental variation influences host tolerance to parasites.Proceedings. Biological sciences · 2019Article
- Population dynamics of an invasive bird parasite, Philornis downsi (Diptera: Muscidae), in the Galapagos Islands.PloS one · 2019Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When confronted with a parasite or pathogen, hosts can defend themselves by resisting or tolerating the attack. While resistance can be diminished when resources are limited, it is unclear how robust tolerance is to changes in environmental conditions. Here, we investigate the sensitivity of tolerance in a single host population living in a highly variable environment. We manipulated the abundance of an invasive parasitic fly, Philornis downsi, in nests of Galápagos mockingbirds ( Mimus parvulus) over four field seasons and measured host fitness in response to parasitism. Mockingbird tolerance to P. downsi varied significantly among years and decreased when rainfall was limited. Video observations indicate that parental provisioning of nestlings appears key to tolerance: in drought years, mockingbirds likely do not have sufficient resources to compensate for the effects of P. downsi. These results indicate that host tolerance is a labile trait and suggest that environmental variation plays a major role in mediating the consequences of host-parasite interactions.
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