Evidence map›Paper›PMID 22648157›Full record

ArticleProceedings. Biological sciences2012

Host-parasite coevolution beyond the nestling stage? Mimicry of host fledglings by the specialist screaming cowbird.

María C De Mársico, Mariela G Gantchoff, Juan C Reboreda

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.3field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. How to learn to recognize conspecific brood parasitic offspring.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Article
  11. Avian egg and nestling detection in the wild: should we rely on visual models or behavioural experiments?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Article
  12. Article
  13. Article
  14. Parasite avoidance behaviours in aquatic environments.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Review
  15. Article
  16. Article
  17. Colour, vision and coevolution in avian brood parasitism.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

María C De MársicoDepartamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, C1428EGA, Buenos Aires, Argentina. de_marsico@ege.fcen.uba.ar
Mariela G Gantchoff
Juan C Reboreda
University of Buenos Aires · ARFundación Ciencias Exactas y Naturales · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Egg mimicry by obligate avian brood parasites and host rejection of non-mimetic eggs are well-known textbook examples of host-parasite coevolution. By contrast, reciprocal adaptations and counteradaptations beyond the egg stage in brood parasites and their hosts have received less attention. The screaming cowbird (Molothrus rufoaxillaris) is a specialist obligate brood parasite whose fledglings look identical to those of its primary host, the baywing (Agelaioides badius). Such a resemblance has been proposed as an adaptation in response to host discrimination against odd-looking young, but evidence supporting this idea is scarce. Here, we examined this hypothesis by comparing the survival rates of young screaming cowbirds and non-mimetic shiny cowbirds (Molothrus bonariensis) cross-fostered to baywing nests and quantifying the similarity in plumage colour and begging calls between host and cowbird fledglings. Shiny cowbirds suffered higher post-fledging mortality rates (83%) than screaming cowbirds (0%) owing to host rejection. Visual modelling revealed that screaming cowbirds, but not shiny cowbirds, were indistinguishable from host young in plumage colour. Similarly, screaming cowbirds matched baywings' begging calls more closely than shiny cowbirds. Our results strongly support the occurrence of host fledgling mimicry in screaming cowbirds and suggest a role of visual and vocal cues in fledgling discrimination by baywings.

Indexed as

Feeding BehaviorReproductionAnimalsArgentinaAuditory PerceptionBiological EvolutionColorFemaleMaleModels, BiologicalNesting BehaviorSeasonsSongbirdsSound SpectrographySpecies SpecificityVisual Perception

Identifiers

PMID22648157
PMCPMC3396896
OpenAlexW2145863263

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.