Hard to catch: experimental evidence supports evasive mimicry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00541148" target="_blank" >RIV/60077344:_____/21:00541148 - isvavai.cz</a>

Výsledek na webu

<a href="https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.3052" target="_blank" >https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.3052</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1098/rspb.2020.3052" target="_blank" >10.1098/rspb.2020.3052</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hard to catch: experimental evidence supports evasive mimicry

Popis výsledku v původním jazyce

Most research on aposematism has focused on chemically defended prey, but the signalling difficulty of capture remains poorly explored. Similar tonclassical Batesian and Müllerian mimicry related to distastefulness, such ‘evasive aposematism’ may also lead to convergence in warning colours,nknown as evasive mimicry. A prime candidate group for evasive mimicry are Adelpha butterflies, which are agile insects and show remarkablencolour pattern convergence. We tested the ability of naive blue tits to learn to avoid and generalize Adelpha wing patterns associated with the difficulty of capture and compared their response to that of birds that learned to associate the same wing patterns with distastefulness. Birds learned to avoid all wing patterns tested and generalized their aversion to other prey to some extent, but learning was faster with evasive prey compared to distasteful prey. Our results on generalization agree with longstanding observations of striking convergence in wing colour patterns among Adelpha species, since, in our experiments, perfect mimics of evasive and distasteful models were always protected during generalization and suffered the lowest attack rate. Moreover, generalization on evasive prey was broader compared to that on distasteful prey. Our results suggest that being hard to catch may deter predators at least as effectively as distastefulness. This study provides empirical evidence for evasive mimicry, a potentially widespread but poorly understood form of morphological convergence driven by predator selection.

Název v anglickém jazyce

Hard to catch: experimental evidence supports evasive mimicry

Popis výsledku anglicky

Most research on aposematism has focused on chemically defended prey, but the signalling difficulty of capture remains poorly explored. Similar tonclassical Batesian and Müllerian mimicry related to distastefulness, such ‘evasive aposematism’ may also lead to convergence in warning colours,nknown as evasive mimicry. A prime candidate group for evasive mimicry are Adelpha butterflies, which are agile insects and show remarkablencolour pattern convergence. We tested the ability of naive blue tits to learn to avoid and generalize Adelpha wing patterns associated with the difficulty of capture and compared their response to that of birds that learned to associate the same wing patterns with distastefulness. Birds learned to avoid all wing patterns tested and generalized their aversion to other prey to some extent, but learning was faster with evasive prey compared to distasteful prey. Our results on generalization agree with longstanding observations of striking convergence in wing colour patterns among Adelpha species, since, in our experiments, perfect mimics of evasive and distasteful models were always protected during generalization and suffered the lowest attack rate. Moreover, generalization on evasive prey was broader compared to that on distasteful prey. Our results suggest that being hard to catch may deter predators at least as effectively as distastefulness. This study provides empirical evidence for evasive mimicry, a potentially widespread but poorly understood form of morphological convergence driven by predator selection.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GJ20-18566Y" target="_blank" >GJ20-18566Y: Význam mezidruhových interakcí při diversifikaci neotropických motýlů v makroevolučním a mikroevolučním měřítku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Proceedings of the Royal Society B-Biological Sciences

ISSN

0962-8452

e-ISSN

1471-2954

Svazek periodika

288

Číslo periodika v rámci svazku

1946

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

20203052

Kód UT WoS článku

000627840400004

EID výsledku v databázi Scopus

2-s2.0-85102911794