ArticleBiology letters2019
Mimicry-dependent lateralization in the visual inspection of foreign eggs by American robins.
Article in Biology letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Patterns of stress response to foreign eggs by a rejecter host of an obligate avian brood parasite.Ecology and evolution · 2023Article
- Lateralization in feeding is food type specific and impacts feeding success in wild birds.Ecology and evolution · 2022Article
- Signal detection and optimal acceptance thresholds in avian brood parasite-host systems: implications for egg rejection.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Review
- Endocrine regulation of egg rejection in an avian brood parasite host.Biology letters · 2020Article
- Inter-Individual Variation in Anti-Parasitic Egg Rejection Behavior: A Test of the Maternal Investment Hypothesis.Integrative organismal biology (Oxford, England) · 2020Article
- Mimicry-dependent lateralization in the visual inspection of foreign eggs by American robins.Biology letters · 2019Article
Corrections and comments
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Authors and funding
6 authors.
Funding
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Abstract
Brain lateralization, or the specialization of function in the left versus right brain hemispheres, has been found in a variety of lineages in contexts ranging from foraging to social and sexual behaviours, including the recognition of conspecific social partners. Here we studied whether the recognition and rejection of avian brood parasitic eggs, another context for species recognition, may also involve lateralized visual processing. We focused on American robins (Turdus migratorius), an egg-rejecter host to occasional brood parasitism by brown-headed cowbirds (Molothrus ater) and tested if robins preferentially used one visual hemifield over the other to inspect mimetic versus non-mimetic model eggs. At the population level, robins showed a significantly lateralized absolute eyedness index (EI) when viewing mimetic model eggs, but individuals varied in left versus right visual hemifield preference. By contrast, absolute EI was significantly lower when viewing non-mimetic eggs. We also found that robins with more lateralized eye usage rejected model eggs at higher rates. We suggest that the inspection and recognition of foreign eggs represent a specialized and lateralized context of species recognition in this and perhaps in other egg-rejecter hosts of brood parasites.
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