Host Responses to Foreign Eggs across the Avian Visual Color Space
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73604650" target="_blank" >RIV/61989592:15310/19:73604650 - isvavai.cz</a>
Result on the web
<a href="https://obd.upol.cz/id_publ/333184536" target="_blank" >https://obd.upol.cz/id_publ/333184536</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1086/703534" target="_blank" >10.1086/703534</a>
Alternative languages
Result language
angličtina
Original language name
Host Responses to Foreign Eggs across the Avian Visual Color Space
Original language description
Despite extensive research on the sensory and cognitive processes of host rejection of avian brood parasites' eggs, the underlying perceptual and cognitive mechanisms are not sufficiently understood. Historically, most studies of host egg discrimination assumed that hosts rejected a parasite's egg from their nest based on the perceived color and pattern differences between the parasite's egg and their own. A recent study used a continuous range of parasitic egg colors and discovered that hosts were more likely to reject browner foreign eggs than foreign eggs that were more blue green, even when their absolute perceived color differences from the hosts' own egg colors were similar. However, the extent of these color biases across the avian perceivable color space remains unclear. Therefore, we built on this previous study by testing European blackbirds' (Turdus merula) responses to model eggs spanning an unprecedented volume of the avian color space. We found that host decisions depended on avian perceived hue, saturation, and luminance of the parasite's egg; hosts generally accepted eggs that were bluer or more blue green and more often rejected eggs that were less saturated or darker. We suggest that future studies investigate the underlying mechanisms of foreign egg discrimination in other host lineages to determine the prevalence and phylogenetic conservation of such perceptual biases among birds.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
AMERICAN NATURALIST
ISSN
0003-0147
e-ISSN
—
Volume of the periodical
194
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
17-27
UT code for WoS article
000474250000004
EID of the result in the Scopus database
2-s2.0-85065795967