title: Macroparasites of introduced parakeets in Italy: a possible role for parasite-mediated competition.
abstract: Alien species are considered a cause of biodiversity loss throughout the world. An important but often overlooked form of competition with native species is the parasite-mediated one. Introduced species may bring their own parasites from their native ranges (spillover) or get native parasites from native species, thus increasing the parasites' spread and transmission risk (spillback). Thus, a complete knowledge of parasites hosted by introduced species is important to assess and to possibly prevent impacts. Ring-necked and monk parakeets have been introduced in many European countries, where they established a number of alien reproductive populations. We sampled 21 ring-necked parakeets and 7 monk parakeets from Italy and identified 35 arthropod ectoparasites belonging to five species. Amongst those, one species was native to India (Neopsittaconirmus lybartota), where alien populations of ring-necked parakeet may have been originated, and one species from South America (Paragoniocotes fulvofasciatus), which is typically found of the monk parakeet in its native range. The other three species of arthropod parasites were native to Italy and commonly found on native species, suggesting the possibility of spillback processes.
authors.affiliation: Department of Agricultural, Forest and Food Sciences, University of Turin, Grugliasco, Turin, Italy, moriemiliano@tiscali.it.
authors.forename: Emiliano
authors.initials: E
authors.lastname: Mori
authors.forename: Leonardo
authors.initials: L
authors.lastname: Ancillotto
authors.forename: Jim
authors.initials: J
authors.lastname: Groombridge
authors.forename: Theresa
authors.initials: T
authors.lastname: Howard
authors.forename: Vincent S
authors.initials: VS
authors.lastname: Smith
authors.forename: Florin
authors.initials: F
authors.lastname: Feneru
authors.forename: Mattia
authors.initials: M
authors.lastname: Menchetti
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000453:epidemiology / Q000469:parasitology*; D058865:Introduced Species; D007558:Italy / Q000453:epidemiology; D010240:Parakeets; D010273:Parasitic Diseases, Animal / Q000453:epidemiology / Q000469:parasitology*