Variation in intensity of a parasitic mite (Spinturnix myoti) in relation to the reproductive cycle and immunocompetence of its bat host (Myotis myotis)

Détails

ID Serval
serval:BIB_4252415FFA54
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Variation in intensity of a parasitic mite (Spinturnix myoti) in relation to the reproductive cycle and immunocompetence of its bat host (Myotis myotis)
Périodique
Ecology Letters
Auteur(s)
Christe P., Arlettaz R., Vogel P.
ISSN
1461-023X
Statut éditorial
Publié
Date de publication
2000
Peer-reviewed
Oui
Volume
3
Numéro
3
Pages
207-212
Langue
anglais
Résumé
Given the intimate association in host-parasite systems, parasites are expected to initiate their own reproduction when vulnerable hosts become abundant and/or when adult hosts are less resistant. In this study, we examined the variation in the intensities of a blood-sucking mite (Spinturnix myoti, Acarina) with respect to the reproductive cycle and immunocompetence of its host, the greater mouse-eared bat Myotis myotis. Reproductive, pregnant females were less immunocompetent and harboured more parasites than nonreproductive females, whilst, during lactation, immunocompetence was positively associated with female body mass. There was a dramatic increase in the T-cell response of gravid females with the advancement of gestation, which coincided with a diminution of individual parasite loads and a progressive switch of parasites from adults to juveniles. The latter not only harboured greater numbers of mites than adult female bats, but they also exhibited gravid parasites in higher proportions, indicating that juvenile hosts are more attractive for parasite reproduction than adult females.
Mots-clé
bats, immunocompetence, mites, reproduction
Web of science
Création de la notice
24/01/2008 20:14
Dernière modification de la notice
03/03/2018 16:37
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