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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10616 - Entomology

Project

<a href="/en/project/GA20-10003S" target="_blank" >GA20-10003S: How ladybirds got their spots: Genetics and ecology of colouration of Coccinellidae</a><br>

Continuities

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

Publication year

2024

Confidentiality

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

Name of the periodical

Ecological Entomology

ISSN

0307-6946

e-ISSN

1365-2311

Volume of the periodical

49

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

357-367

UT code for WoS article

001136568300001

EID of the result in the Scopus database

2-s2.0-85181518987