Responses of avian predators to the polymorphic harlequin ladybird (Harmonia axyridis)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F24%3A43907972" target="_blank" >RIV/60076658:12310/24:43907972 - isvavai.cz</a>

Výsledek na webu

<a href="https://resjournals.onlinelibrary.wiley.com/doi/10.1111/een.13310" target="_blank" >https://resjournals.onlinelibrary.wiley.com/doi/10.1111/een.13310</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/een.13310" target="_blank" >10.1111/een.13310</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Responses of avian predators to the polymorphic harlequin ladybird (Harmonia axyridis)

Popis výsledku v původním jazyce

1. The harlequin ladybird (Harmonia axyridis) shows a high level of colour polymorphism. Particular forms differ in their colour combination, pattern and abundance.2. Two species of wild-caught passerines native to Central Europe were offered various forms of ladybirds, differing in their colour pattern and abundance in nature. We predicted that those forms that are more abundant in the wild are better protected, as they are more familiar to predators.3. Forms novemdecimsignata and spectabilis, which represent 97% of individuals in the wild population, significantly differ in their visual appearance (mostly orange vs. mostly black). The form axyridis is very rare in the wild, and suturalis and aninkae do not occur in the wild and were derived from laboratory breedings4. As predators, we used great tits (Parus major), which are very aversive towards ladybirds, and tree sparrows (Passer montanus), which are quite willing to attack and even eat ladybirds.5. We compared bird responses to particular ladybird colour forms and included a brown-painted control to test the effect of conspicuous colours.6. We showed that both species of birds attacked all conspicuous forms of the ladybird equally and usually very rarely. The brown-painted novemdecimsignata form was attacked more frequently compared with the conspicuous forms, showing that the visual appearance prevents birds from attacking any conspicuous colour combination. Sparrows tended to eat the attacked ladybirds of forms novemdecimsignata, spectabilis and brown painted. The rare axyridis form and laboratory forms were very well protected from the attack, very likely due to neophobia.7. We may conclude that despite the outstanding polymorphism of H. axyridis, its protection against avian predators is very effective as long as the red-and-black pattern is preserved.

Název v anglickém jazyce

Responses of avian predators to the polymorphic harlequin ladybird (Harmonia axyridis)

Popis výsledku anglicky

1. The harlequin ladybird (Harmonia axyridis) shows a high level of colour polymorphism. Particular forms differ in their colour combination, pattern and abundance.2. Two species of wild-caught passerines native to Central Europe were offered various forms of ladybirds, differing in their colour pattern and abundance in nature. We predicted that those forms that are more abundant in the wild are better protected, as they are more familiar to predators.3. Forms novemdecimsignata and spectabilis, which represent 97% of individuals in the wild population, significantly differ in their visual appearance (mostly orange vs. mostly black). The form axyridis is very rare in the wild, and suturalis and aninkae do not occur in the wild and were derived from laboratory breedings4. As predators, we used great tits (Parus major), which are very aversive towards ladybirds, and tree sparrows (Passer montanus), which are quite willing to attack and even eat ladybirds.5. We compared bird responses to particular ladybird colour forms and included a brown-painted control to test the effect of conspicuous colours.6. We showed that both species of birds attacked all conspicuous forms of the ladybird equally and usually very rarely. The brown-painted novemdecimsignata form was attacked more frequently compared with the conspicuous forms, showing that the visual appearance prevents birds from attacking any conspicuous colour combination. Sparrows tended to eat the attacked ladybirds of forms novemdecimsignata, spectabilis and brown painted. The rare axyridis form and laboratory forms were very well protected from the attack, very likely due to neophobia.7. We may conclude that despite the outstanding polymorphism of H. axyridis, its protection against avian predators is very effective as long as the red-and-black pattern is preserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

<a href="/cs/project/GA20-10003S" target="_blank" >GA20-10003S: Jak se dělá tečkování: genetika a ekologie zbarvení slunéček (Coleoptera: Coccinellidae)</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Ecological Entomology

ISSN

0307-6946

e-ISSN

1365-2311

Svazek periodika

49

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

357-367

Kód UT WoS článku

001136568300001

EID výsledku v databázi Scopus

2-s2.0-85181518987