Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats
The prevalence of obligate parasitic fungi may depend partly on the environmental conditions prevailing in the habitats of their hosts. Ectoparasitic fungi of the order Laboulbeniales (Ascomycetes) infect arthropods and form thalli on the host's body surface. Although several studies report the...
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Institute of Entomology, Biology Centre, Czech Academy of Science
2010-02-01
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Series: | European Journal of Entomology |
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Online Access: | https://www.eje.cz/artkey/eje-201001-0009_Incidence_of_infection_of_carabid_beetles_Coleoptera_Carabidae_by_laboulbenialean_fungi_in_different_habitat.php |
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author | Shinji SUGIURA Kazuo YAMAZAKI Hayato MASUYA |
author_facet | Shinji SUGIURA Kazuo YAMAZAKI Hayato MASUYA |
author_sort | Shinji SUGIURA |
collection | DOAJ |
description | The prevalence of obligate parasitic fungi may depend partly on the environmental conditions prevailing in the habitats of their hosts. Ectoparasitic fungi of the order Laboulbeniales (Ascomycetes) infect arthropods and form thalli on the host's body surface. Although several studies report the incidence of infection of certain host species by these fungi, quantitative data on laboulbenialean fungus-host arthropod interactions at the host assemblage level are rarely reported. To clarify the effects of host habitats on infection by ectoparasitic fungi, the incidence of infection by fungi of the genus Laboulbenia (Laboulbeniales) of overwintering carabid beetles (Coleoptera: Carabidae) in three habitats, a riverside (reeds and vines), a secondary forest and farmland (rice and vegetable fields), were compared in central Japan. Of the 531 adults of 53 carabid species (nine subfamilies) collected in the three habitats, a Laboulbenia infection of one, five and one species of the carabid subfamilies Pterostichinae, Harpalinae and Callistinae, respectively, was detected. Three species of fungus were identified: L. coneglanensis, L. pseudomasei and L. fasciculate. The incidence of infection by Laboulbenia was higher in the riverside habitat (8.97% of individuals; 14/156) than in the forest (0.93%; 2/214) and farmland (0%; 0/161) habitats. Furthermore, the incidence of infection by Laboulbenia in the riverside habitat ranged from 0 to 33.3% and differed significantly in the ten microhabitats (riverbank, edge of track, tall reeds, kudzu vines, slope of a hollow, rotten wood, vine reeds, under stones, the shoulder of a terrace and marshy ground) where the carabid beetles overwintered. These results suggest that host habitats and microhabitats are closely associated with successful infection by laboulbenialean fungi. |
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id | doaj.art-fb178b1c92b5458d9eb6a7f437b11e4a |
institution | Directory Open Access Journal |
issn | 1210-5759 1802-8829 |
language | English |
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publishDate | 2010-02-01 |
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series | European Journal of Entomology |
spelling | doaj.art-fb178b1c92b5458d9eb6a7f437b11e4a2022-12-21T20:33:43ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292010-02-011071737910.14411/eje.2010.009eje-201001-0009Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitatsShinji SUGIURA0Kazuo YAMAZAKI1Hayato MASUYA2Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan; e-mail: ssugiura@affrc.go.jpOsaka City Institute of Public Health and Environmental Sciences, Osaka 543-0026, JapanForestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan; e-mail: ssugiura@affrc.go.jpThe prevalence of obligate parasitic fungi may depend partly on the environmental conditions prevailing in the habitats of their hosts. Ectoparasitic fungi of the order Laboulbeniales (Ascomycetes) infect arthropods and form thalli on the host's body surface. Although several studies report the incidence of infection of certain host species by these fungi, quantitative data on laboulbenialean fungus-host arthropod interactions at the host assemblage level are rarely reported. To clarify the effects of host habitats on infection by ectoparasitic fungi, the incidence of infection by fungi of the genus Laboulbenia (Laboulbeniales) of overwintering carabid beetles (Coleoptera: Carabidae) in three habitats, a riverside (reeds and vines), a secondary forest and farmland (rice and vegetable fields), were compared in central Japan. Of the 531 adults of 53 carabid species (nine subfamilies) collected in the three habitats, a Laboulbenia infection of one, five and one species of the carabid subfamilies Pterostichinae, Harpalinae and Callistinae, respectively, was detected. Three species of fungus were identified: L. coneglanensis, L. pseudomasei and L. fasciculate. The incidence of infection by Laboulbenia was higher in the riverside habitat (8.97% of individuals; 14/156) than in the forest (0.93%; 2/214) and farmland (0%; 0/161) habitats. Furthermore, the incidence of infection by Laboulbenia in the riverside habitat ranged from 0 to 33.3% and differed significantly in the ten microhabitats (riverbank, edge of track, tall reeds, kudzu vines, slope of a hollow, rotten wood, vine reeds, under stones, the shoulder of a terrace and marshy ground) where the carabid beetles overwintered. These results suggest that host habitats and microhabitats are closely associated with successful infection by laboulbenialean fungi.https://www.eje.cz/artkey/eje-201001-0009_Incidence_of_infection_of_carabid_beetles_Coleoptera_Carabidae_by_laboulbenialean_fungi_in_different_habitat.phpcoleopteracarabidaeectoparasitic fungiascomyceteslaboulbeniamicrohabitatoverwintering sites |
spellingShingle | Shinji SUGIURA Kazuo YAMAZAKI Hayato MASUYA Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats European Journal of Entomology coleoptera carabidae ectoparasitic fungi ascomycetes laboulbenia microhabitat overwintering sites |
title | Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats |
title_full | Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats |
title_fullStr | Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats |
title_full_unstemmed | Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats |
title_short | Incidence of infection of carabid beetles (Coleoptera: Carabidae) by laboulbenialean fungi in different habitats |
title_sort | incidence of infection of carabid beetles coleoptera carabidae by laboulbenialean fungi in different habitats |
topic | coleoptera carabidae ectoparasitic fungi ascomycetes laboulbenia microhabitat overwintering sites |
url | https://www.eje.cz/artkey/eje-201001-0009_Incidence_of_infection_of_carabid_beetles_Coleoptera_Carabidae_by_laboulbenialean_fungi_in_different_habitat.php |
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