Invasive host caught up with a native parasitoid: field data reveal high parasitism of Harmonia axyridis by Dinacampus coccinellae in Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00510669" target="_blank" >RIV/60077344:_____/19:00510669 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs10530-019-02027-4" target="_blank" >https://link.springer.com/article/10.1007%2Fs10530-019-02027-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10530-019-02027-4" target="_blank" >10.1007/s10530-019-02027-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Invasive host caught up with a native parasitoid: field data reveal high parasitism of Harmonia axyridis by Dinacampus coccinellae in Central Europe

Popis výsledku v původním jazyce

The harlequin ladybird, Harmonia axyridis, is considered to be one of the most invasive insect species worldwide. Its invasion success and extreme speed of range expansion has been partially attributed to weak control of its populations by natural enemies. Previously published data on emergence rates of the hymenopteran parasitoid Dinocampus coccinellae support the enemy release hypothesis: H. axyridis has been consistently less successfully parasitized compared to native ladybird species. In this study, we show that since 2016, i.e., 10 years after its arrival in Central Europe, several populations of H. axyridis in the Czech Republic have a very high prevalence of D. coccinellae parasitism. D. coccinellae emerged from 46% of H. axyridis individuals in the most parasitized population. Moreover, H. axyridis was more parasitized than the native Coccinella septempunctata in seven of nine investigated co-occurring populations. The meta-analytically pooled estimate of D. coccinellae emergence rate from H. axyridis across the Czech populations (this study) is thirteen times higher than the pooled estimate for invasive populations of this beetle elsewhere (historical data up to 2016). We hypothesize that some Central European populations of D. coccinellae have evolved to overcome the immune system of H. axyridis, which was previously thought to be responsible for the high larval mortality of D. coccinellae. As parasitism rates are highly variable in time and space, we encourage future research investigating the determinants of parasitoid prevalence in H. axyridis and other large ladybird species on a continental scale.

Název v anglickém jazyce

Invasive host caught up with a native parasitoid: field data reveal high parasitism of Harmonia axyridis by Dinacampus coccinellae in Central Europe

Popis výsledku anglicky

The harlequin ladybird, Harmonia axyridis, is considered to be one of the most invasive insect species worldwide. Its invasion success and extreme speed of range expansion has been partially attributed to weak control of its populations by natural enemies. Previously published data on emergence rates of the hymenopteran parasitoid Dinocampus coccinellae support the enemy release hypothesis: H. axyridis has been consistently less successfully parasitized compared to native ladybird species. In this study, we show that since 2016, i.e., 10 years after its arrival in Central Europe, several populations of H. axyridis in the Czech Republic have a very high prevalence of D. coccinellae parasitism. D. coccinellae emerged from 46% of H. axyridis individuals in the most parasitized population. Moreover, H. axyridis was more parasitized than the native Coccinella septempunctata in seven of nine investigated co-occurring populations. The meta-analytically pooled estimate of D. coccinellae emergence rate from H. axyridis across the Czech populations (this study) is thirteen times higher than the pooled estimate for invasive populations of this beetle elsewhere (historical data up to 2016). We hypothesize that some Central European populations of D. coccinellae have evolved to overcome the immune system of H. axyridis, which was previously thought to be responsible for the high larval mortality of D. coccinellae. As parasitism rates are highly variable in time and space, we encourage future research investigating the determinants of parasitoid prevalence in H. axyridis and other large ladybird species on a continental scale.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Biological Invasions

ISSN

1387-3547

e-ISSN

—

Svazek periodika

21

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

2795-2802

Kód UT WoS článku

000478767600002

EID výsledku v databázi Scopus

2-s2.0-85066802579