The Effects of a Nematode Lungworm (Rhabdias hylae) on its Natural and Invasive Anuran Hosts.

Détails

ID Serval
serval:BIB_C25A284A8028
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The Effects of a Nematode Lungworm (Rhabdias hylae) on its Natural and Invasive Anuran Hosts.
Périodique
Journal of Parasitology
Auteur(s)
Nelson F.B., Brown G.P., Dubey S., Shine R.
ISSN
1937-2345 (Electronic)
ISSN-L
0022-3395
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
101
Numéro
3
Pages
290-296
Langue
anglais
Résumé
Biological invasions can bring both the invader and native taxa into contact with novel parasites. As cane toads ( Rhinella marina ) have spread through Australia, they have encountered lungworms (Rhabdias hylae) that occur in native frogs. Field surveys suggest that these lungworms have not host-switched to toads. In our laboratory studies, R. hylae infected cane toads as readily as it infected native frogs, but failed to reach the lungs of the novel host (i.e., were killed by the toads' immune response). Plausibly, then, R. hylae might reduce the viability both of their native hosts (frogs, that can exhibit high parasite burdens) and cane toads (that must deal with infective larvae traveling through the host body). Our laboratory trials suggest, however, that the impacts of the parasite on infected anuran hosts (both frogs and toads) were minimal, with no significant decrements to host survival, activity, growth, or locomotor performance. Ironically, the lack of impact of the parasite on its native hosts appears to be an outcome of co-evolution (frogs tolerate the lungworm), whereas the lack of impact on the novel host is due to a lack of co-evolution (toads can recognize and eliminate the lungworm).
Mots-clé
Animals, Anura/growth & development, Anura/parasitology, Body Size, Bufo marinus/growth & development, Bufo marinus/parasitology, Feces/parasitology, Feeding Behavior, Female, Lung/parasitology, Male, Movement, Northern Territory/epidemiology, Prevalence, Rhabditida Infections/epidemiology, Rhabditida Infections/parasitology, Rhabditoidea/physiology
Pubmed
Web of science
Création de la notice
30/01/2015 16:37
Dernière modification de la notice
03/03/2018 21:09
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