Mortality of native and invasive ladybirds co-infected by ectoparasitic and entomopathogenic fungi

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43901309" target="_blank" >RIV/60076658:12310/20:43901309 - isvavai.cz</a>

Výsledek na webu

<a href="https://peerj.com/articles/10110/" target="_blank" >https://peerj.com/articles/10110/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7717/peerj.10110" target="_blank" >10.7717/peerj.10110</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mortality of native and invasive ladybirds co-infected by ectoparasitic and entomopathogenic fungi

Popis výsledku v původním jazyce

Harmonia axyridis is an invasive alien ladybird in North America and Europe. Studies show that multiple natural enemies are using Ha. axyridis as a new host. However, thus far, no research has been undertaken to study the effects of simultaneous infection by multiple natural enemies on Ha. axyridis. We hypothesized that high thallus densities of the ectoparasitic fungus Hesperomyces virescens on a ladybird weaken the host&apos;s defenses, thereby making it more susceptible to infection by other natural enemies. We examined mortality of the North American-native Olla nu-nigrum and Ha. axyridis co-infected with He. virescens and an entomopathogenic fungus-either Beauveria bassiana or Metarhizium brunneum. Laboratory assays revealed that He. virescens- infected O. nu-nigrum individuals are more susceptible to entomopathogenic fungi, but Ha. axyridis does not suffer the same effects. This is in line with the enemy release hypothesis, which predicts that invasive alien species in new geographic areas experience reduced regulatory effects from natural enemies compared to native species. Considering our results, we can ask how He. virescens affects survival when confronted by other pathogens that previously had little impact on Ha. axyridis.

Název v anglickém jazyce

Mortality of native and invasive ladybirds co-infected by ectoparasitic and entomopathogenic fungi

Popis výsledku anglicky

Harmonia axyridis is an invasive alien ladybird in North America and Europe. Studies show that multiple natural enemies are using Ha. axyridis as a new host. However, thus far, no research has been undertaken to study the effects of simultaneous infection by multiple natural enemies on Ha. axyridis. We hypothesized that high thallus densities of the ectoparasitic fungus Hesperomyces virescens on a ladybird weaken the host&apos;s defenses, thereby making it more susceptible to infection by other natural enemies. We examined mortality of the North American-native Olla nu-nigrum and Ha. axyridis co-infected with He. virescens and an entomopathogenic fungus-either Beauveria bassiana or Metarhizium brunneum. Laboratory assays revealed that He. virescens- infected O. nu-nigrum individuals are more susceptible to entomopathogenic fungi, but Ha. axyridis does not suffer the same effects. This is in line with the enemy release hypothesis, which predicts that invasive alien species in new geographic areas experience reduced regulatory effects from natural enemies compared to native species. Considering our results, we can ask how He. virescens affects survival when confronted by other pathogens that previously had little impact on Ha. axyridis.

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

2020

Kód důvěrnosti údajů

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

Název periodika

PeerJ

ISSN

2167-8359

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

NOV 4 2020

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

000584954300003

EID výsledku v databázi Scopus

2-s2.0-85095754399