Variation in multicomponent recognition cues alters egg rejection decisions: a test of the optimal acceptance threshold hypothesis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73604655" target="_blank" >RIV/61989592:15310/19:73604655 - isvavai.cz</a>
Result on the web
<a href="https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2018.0195" target="_blank" >https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2018.0195</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1098/rstb.2018.0195" target="_blank" >10.1098/rstb.2018.0195</a>
Alternative languages
Result language
angličtina
Original language name
Variation in multicomponent recognition cues alters egg rejection decisions: a test of the optimal acceptance threshold hypothesis
Original language description
The optimal acceptance threshold hypothesis provides a general predictive framework for testing behavioural responses to discrimination challenges. Decision-makers should respond to a stimulus when the perceived difference between that stimulus and a comparison template surpasses an acceptance threshold. We tested how individual components of a relevant recognition cue (experimental eggs) contributed to behavioural responses of chalk-browed mockingbirds, Mimus saturninus, a frequent host of the parasitic shiny cowbird, Molothrus bonariensis. To do this, we recorded responses to eggs that varied with respect to two components: colour, ranging from bluer to browner than the hosts' own eggs, and spotting, either spotted like their own or unspotted. Although tests of this hypothesis typically assume that decisions are based on perceived colour dissimilarity between own and foreign eggs, we found that decisions were biased toward rejecting browner eggs. However, as predicted, hosts tolerated spotted eggs more than unspotted eggs, irrespective of colour. These results uncover how a single component of a multicomponent cue can shift a host's discrimination threshold and illustrate how the optimal acceptance threshold hypothesis can be used as a framework to quantify the direction and amount of the shift (in avian perceptual units) of the response curve across relevant phenotypic ranges.
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
<a href="/en/project/EE2.3.30.0041" target="_blank" >EE2.3.30.0041: POST-UP II.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN
0962-8436
e-ISSN
—
Volume of the periodical
374
Issue of the periodical within the volume
1769
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
"20180195-1"-"20180195-10"
UT code for WoS article
000460486500005
EID of the result in the Scopus database
2-s2.0-85062166216