ArticleProceedings. Biological sciences2019
Introduced parasite changes host phenotype, mating signal and hybridization risk: Philornis downsi effects on Darwin's finch song.
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 13 papers.
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Who cites it
13 citing papers in PubMed, 20 citations in OpenAlex.
- A supergene and genomic mosaicism are associated with phenotypic evolution in Galápagos tree finches.Nature communications · 2026Article
- Cultural and morphological divergence of Darwin's cactus finches (Biological journal of the Linnean Society. Linnean Society of London · 2025Article
- Genomic Introgression Between Critically Endangered and Stable Species of Darwin's Tree Finches on the Galapagos Islands.Evolutionary applications · 2025Article
- Age effects in Darwin's finches: older males build more concealed nests in areas with more heterospecific singing neighbors.Journal of ornithology · 2024Article
- Host-Parasite Coevolution in Primates.Life (Basel, Switzerland) · 2023Review
- Parental food provisioning and nestling growth underJournal of ornithology · 2023Article
- Temporal and spatial variation in sex-specific abundance of the avian vampire fly (Philornis downsi).Parasitology research · 2022Article
- Beyond illness: Variation in haemosporidian load explains differences in vocal performance in a songbird.Ecology and evolution · 2021Article
- Avian vampire fly (Philornis downsi) mortality differs across Darwin's finch host species.Scientific reports · 2021Article
- Behavioural response to songs between genetically diverged allopatric populations of Darwin's small tree finch in the Galápagos.Journal of evolutionary biology · 2021Article
- Evidence for rapid downward fecundity selection in an ectoparasite (Philornis downsi) with earlier host mortality in Darwin's finches.Journal of evolutionary biology · 2020Article
- Introduced parasite changes host phenotype, mating signal and hybridization risk: Philornis downsi effects on Darwin's finch song.Proceedings. Biological sciences · 2019Article
- An inter-island comparison of Darwin's finches reveals the impact of habitat, host phylogeny, and island on the gut microbiome.PloS one · 2019Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduced parasites that alter their host's mating signal can change the evolutionary trajectory of a species through sexual selection. Darwin's Camarhynchus finches are threatened by the introduced fly Philornis downsi that is thought to have accidentally arrived on the Galapagos Islands during the 1960s. The P. downsi larvae feed on the blood and tissue of developing finches, causing on average approximately 55% in-nest mortality and enlarged naris size in survivors. Here we test if enlarged naris size is associated with song characteristics and vocal deviation in the small tree finch ( Camarhynchus parvulus), the critically endangered medium tree finch ( C. pauper) and the recently observed hybrid tree finch group ( Camarhynchus hybrids). Male C. parvulus and C. pauper with enlarged naris size produced song with lower maximum frequency and greater vocal deviation, but there was no significant association in hybrids. Less vocal deviation predicted faster pairing success in both parental species. Finally, C. pauper males with normal naris size produced species-specific song, but male C. pauper with enlarged naris size had song that was indistinguishable from other tree finches. When parasites disrupt host mating signal, they may also facilitate hybridization. Here we show how parasite-induced naris enlargement affects vocal quality, resulting in blurred species mating signals.
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