Predators and parasitoids of the harlequin ladybird, Harmonia axyridis, in its native range and invaded areas

Ceryngier, Piotr; Nedvěd, Oldřich; Grez, Audrey A.; Riddick, Eric W.; Roy, Helen E.; Martin, Gilles San; Steenberg, Tove; Veselý, Petr; Zaviezo, Tania; Zúñiga-Reinoso, Álvaro; Haelewaters, Danny

doi:10.1007/s10530-017-1608-9

Cited by 49 publications

(46 citation statements)

References 97 publications

(137 reference statements)

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“…At last, our study is based on the premise of enemy release. Although enemy release cannot be excluded (Ceryngier et al., ), a comprehensive assessment of the impact of natural enemies, including pathogens, in the native and introduced range of H. axyridis is still lacking (Haelewaters et al., ). Our common garden experiment thus corresponds to what Colautti and Lau () consider to be the beginning of a conclusive demonstration of EICA, paving the way to additional experiments to identify the mechanisms underlying the evolution of the invasive populations of H. axyridis .…”

Section: Discussionmentioning

confidence: 99%

“…At last, our study is based on the premise of enemy release. Although enemy release cannot be excluded (Ceryngier et al, 2018), a comprehensive assessment of the impact of natural enemies, including pathogens, in the native and introduced range of H. axyridis is still lacking (Haelewaters et al, 2017). Our common garden experiment thus corresponds to what Colautti and Lau (2015) consider to be the…”

Section: Studies On How and Why Non-native Populations Became Invasivementioning

confidence: 99%

“…Nevertheless, Ceryngier et al. () point out that natural enemies, namely parasitoids, are more diverse in the invader's native range, although the acquisition of new parasitoids might in the long term, lead to novel associations in the invaded areas (Ceryngier et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…However, there is a lack of comprehensive studies assessing the natural enemies of H. axyridis in its native and introduced range (Haelewaters et al, 2017;Roy, Rhule, et al, 2011). Nevertheless, Ceryngier et al (2012) point out that natural enemies, namely parasitoids, are more diverse in the invader's native range, although the acquisition of new parasitoids might in the long term, lead to novel associations in the invaded areas (Ceryngier et al, 2018).…”

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confidence: 99%

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The evolution of chemical defenses along invasion routes: Harmonia axyridis Pallas (Coccinellidae: Coleoptera) as a case study

Magro

Ramon‐Portugal

Facon

et al. 2018

Ecology and Evolution

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The evolution of increased competitive ability (EICA) hypothesis (Blossey & Nötzold, 1995) postulates that escaping from coevolved enemies increases invaders fitness by energy reallocation from defenses and immunity to growth and reproduction. In this context, we evaluated the evidence of evolutionary change in invasive populations of Harmonia axyridis Pallas (Coccinellidae: Coleoptera). We measured egg defenses—cocktail of hydrocarbons on the egg's surface flagging egg toxicity and the concentration of the main alkaloid harmonine—in individuals from three populations along the invasion route (Japan: native, United States: introduced more than 30 years ago, South Africa: introduced in the early 2000s) in a common garden experiment. Our results support the EICA hypothesis: We found changes along the invasion route in the profiles of the hydrocarbons coating the eggs’ surface and a decrease in the concentration of harmonine in eggs from the most recent invasive South African population compared to the long established in the United States and the native Japanese ones.

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Section: Discussionmentioning

confidence: 99%

Section: Studies On How and Why Non-native Populations Became Invasivementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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The evolution of chemical defenses along invasion routes: Harmonia axyridis Pallas (Coccinellidae: Coleoptera) as a case study

Magro

Ramon‐Portugal

Facon

et al. 2018

Ecology and Evolution

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“…Independent studies show that natural enemies of native ladybirds have recently employed Ha. axyridis as a new host, sometimes simultaneously 16,17,19,20 . Review of the effects of parasites, pathogens, and parasitoids of Ha.…”

Section: Introductionmentioning

confidence: 99%

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

Haelewaters

Hiller

Kemp

et al. 2020

Preprint

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Harmonia axyridis is an invasive alien ladybird in North America and Europe. 19 Studies show that multiple natural enemies are using Ha. axyridis as a new host. However, thus 20 far, no research has been undertaken to study the effects of simultaneous infections of multiple 21 natural enemies on Ha. axyridis. We hypothesized that high thallus densities of the ectoparasitic 22 fungus Hesperomyces virescens on a ladybird weaken the host's defenses, thereby making it 23 2 more susceptible to infection by other natural enemies. We examined mortality of the North 24 American-native Olla v-nigrum and Ha. axyridis co-infected with He. virescens and an 25 entomopathogenic fungus-either Beauveria bassiana or Metarhizium anisopliae. Laboratory 26 assays revealed that He. virescens-infected O. v-nigrum individuals are more susceptible to 27 entomopathogenic fungi, but Ha. axyridis does not suffer the same effects. This is in line with 28 the enemy release hypothesis, which predicts that invasive alien species in new geographic areas 29 experience reduced regulatory effects from natural enemies compared to native species. 30 Considering our results, we can ask how He. virescens affects survival when confronted by other 31 pathogens that previously had little impact on Ha. axyridis. 32 33In nature and in agricultural ecosystems, hosts may be exploited by more than one natural 34 enemy. These organisms interact with each other and with their hosts 1 . These complex 35 interactions shape the population structure and dynamics of all organisms in the system. Natural 36 enemies also compete with one another, and the impact on the host can be either synergistic, 37 additive, or antagonistic 2 . These interactions can be manifested in various aspects of host fitness 38 or mortality. For example, biological control of Drosophila suzukii (Diptera, Drosophilidae), an 39 important pest of fruit and berry crops, can be improved by treatments combining multiple 40 natural enemies, which have an additive effect 3 . At the same time, dual infections (even if 41 causing an increase in host mortality) may be deleterious to one or both pathogens in terms of 42 pathogen growth, fecundity, or other fitness parameters.43 44Harmonia axyridis (Coleoptera, Coccinellidae), native to eastern Asia, has rapidly increased its 45 global range and is now present on all continents except Antarctica 4,5,6 . Even though it has 46 repeatedly been introduced for its beneficial properties as a biological control agent against aphid 47 pests, its negative effects on native ladybird communities in invaded areas 7,8,9 and on food 48 production 7 have raised serious concerns since the early 2000s 4 . It is now a model organism for 49 studying invasive alien species 10,11 and it has been listed in Europe as "one of the worst" invasive 50 species 12 . Harmonia axyridis is often reported as host to several natural enemies. These include 51 parasites (Hesperomyces virescens, Coccipolipus hippodamiae, Parasitylenchus bifurcatus), 52 parasitoids (phorid and tachinid...

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Biotic Interactions as Mediators of Biological Invasions: Insights from South Africa

Roux

Clusella‐Trullas

Mokotjomela

et al. 2020

Biological Invasions in South Africa

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Predators and parasitoids of the harlequin ladybird, Harmonia axyridis, in its native range and invaded areas

Cited by 49 publications

References 97 publications

The evolution of chemical defenses along invasion routes: Harmonia axyridis Pallas (Coccinellidae: Coleoptera) as a case study

The evolution of chemical defenses along invasion routes: Harmonia axyridis Pallas (Coccinellidae: Coleoptera) as a case study

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

Biotic Interactions as Mediators of Biological Invasions: Insights from South Africa

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