Hyperparasitism in caves: Bats, bat flies and ectoparasitic fungus interaction

Katrine M. Jensen, Luísa Rodrigues, Thomas Pape, Anders Garm, Sergi Santamaria, Ana Sofia P.S. Reboleira

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

© 2019 Elsevier Inc. Bat flies (Diptera: Nycteribiinae) are highly specialized bloodsucking bat ectoparasites. Some of the ectoparasitic bat flies are themselves parasitized with an ectoparasitic fungus of the genus Arthrorhynchus (Laboulbeniales). Ascospores of the fungus attach to the cuticle of a bat fly and develop a haustorium that penetrates the host cuticle. This interaction defines the fungus as a hyperparasite. Both the fly and the fungus are obligate parasites and this peculiar case of hyperparasitism has remained largely unstudied. We studied the prevalence of Laboulbeniales, genus Arthrorhynchus, in natural populations of bat flies infesting the bat species Miniopterus schreibersii, Myotis bechsteinii, My. blythii, My. daubentonii, My. escalerai and My. myotis in Portuguese caves. Laboulbeniales were found infecting 10 of the 428 screened bat flies (2.3%) in natural populations, with fewer infections in winter. Images obtained with transmission electron microscopy show the fungal haustorium within the bat fly host tissue, from where it extracts nutrition.
Original languageEnglish
Article number107206
Pages (from-to)107206
Number of pages10
JournalJournal of Invertebrate Pathology
Volume166
DOIs
Publication statusPublished - 1 Sep 2019

Keywords

  • ARTHRORHYNCHUS-NYCTERIBIAE
  • ASCOMYCOTA
  • BEHAVIOR
  • DIPTERA
  • Ectoparasites
  • HIGH HOST-SPECIFICITY
  • Hyperparasites
  • LABOULBENIALES FUNGI
  • Laboulbeniales
  • MILLIPEDES
  • Nycteribiidae
  • Parasitism
  • Subterranean ecosystems

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