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Haelewaters D, Hiller T, Ceryngier P, Eschen R, Gorczak M, Houston ML, Kisło K, Knapp M, Landeka N, Pfliegler WP, Zach P, Aime MC, Nedvěd O. Do Biotic and Abiotic Factors Influence the Prevalence of a Common Parasite of the Invasive Alien Ladybird Harmonia axyridis? Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.773423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Hesperomyces virescens (Ascomycota, Laboulbeniales), a fungal ectoparasite, is thus far reported on Harmonia axyridis from five continents: North and South America, Europe, Africa, and Asia. While it is known that He. virescens can cause mortality of Ha. axyridis under laboratory conditions, the role of biotic and abiotic factors in influencing the distribution of He. virescens in the field is unknown. We collected and screened 3,568 adult Ha. axyridis from 23 locations in seven countries in Central Europe between October and November 2018 to test the effect of selected host characters and climate and landscape variables on the infection probability with He. virescens. Mean parasite prevalence of He. virescens on Ha. axyridis was 17.9%, ranging among samples from 0 to 46.4%. Host sex, climate, and landscape composition did not have any significant effect on the infection probability of He. virescens on Ha. axyridis. Two color forms, f. conspicua and f. spectabilis, had a significantly lower parasite prevalence compared to the common Ha. axyridis f. novemdecimsignata.
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Gippet JMW, Rocabert C, Colin T, Grangier J, Tauru H, Dumet A, Mondy N, Kaufmann B. The observed link between urbanization and invasion can depend on how invasion is measured. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Jérôme M. W. Gippet
- Department of Ecology and Evolution University of Lausanne Lausanne Switzerland
| | - Charles Rocabert
- Synthetic and Systems Biology Unit Institute of Biochemistry Biological Research Centre Szeged Hungary
- Organismal and Evolutionary Biology Research Programme University of Helsinki Helsinki Finland
| | - Théotime Colin
- School of Life and Environmental Sciences Sydney Institute of Agriculture The University of Sydney Sydney New South Wales Australia
| | - Julien Grangier
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Hugo Tauru
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Adeline Dumet
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Nathalie Mondy
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Bernard Kaufmann
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
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