NDLI: Causes of inter-individual variation in reproductive strategies of the parasitic nematode Graphidioides subterraneus

Content Provider	Springer Nature Link
Author	Rossin, Marìa Alejandra Poulin, Robert Timi, Juan Tomás Malizia, Ana Inés
Copyright Year	2005
Abstract	Several factors capable of affecting the amount of resources available to an individual parasite, such as the number of other parasites in the host or host quality, may cause variability in reproductive success among parasites. Variation in egg output and mean egg volume was investigated among adult females of the nematode Graphidioides subterraneus, parasitic in the herbivorous subterranean rodent Ctenomys talarum (Octodontidae). Female nematode body size correlated strongly with the number of eggs produced. However, neither host body mass nor the number of other nematodes per host had any influence on the number or volume of eggs produced by the parasites. There was also no evidence for a trade-off between the number of eggs produced and mean egg volume among female nematodes. All these results suggest that resource supply to individual worms is not limited by host size or by the number of conspecific parasites vying for the same resources, despite the 30-fold variation in intensity of infection and the twofold variation in host body mass observed in the present study. Instead, resource availability does not appear to constrain reproduction in G. subterraneus, with its host providing a stable, predictable environment.
Starting Page	335
Ending Page	339
Page Count	5
File Format	PDF
ISSN	09320113
Journal	Parasitology Research
Volume Number	96
Issue Number	5
e-ISSN	14321955
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-05-28
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Veterinary Parasitology Insect Science

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