Document Detail

Wild rabbit host and some parasites show trophic-level relationships for delta 13C and delta 15N: a first report.
MedLine Citation:
PMID:  9854844     Owner:  NLM     Status:  MEDLINE    
We report the first isotopic study of an animal host-parasite system. Parasitic, intestinal nematodes, Graphidium strigosum and Passalurus ambiguus, were 15N-enriched relative to their host, the European rabbit Oryctolagus cuniculus, while parasitic cestodes, Cittataenia denticulata and Mosgovoyia pectinata, were 15N-depleted, suggesting different trophic relationships. Host embryos were more similar in their delta 13C and delta 15N values to maternal muscle than were any of the parasites. Coprophagy, the direct recycling of food by the rabbit eating its own faeces, did not lead to isotopic differences between stomach contents and faeces, suggesting that the major point for isotopic discrimination in lagomorph nitrogen metabolism is in the animal rather than in the gut. We conclude that bulk delta 13C and delta 15N can reveal valuable new information about host-parasite relationships, and these could be explored further at the biochemical level using compound-specific isotopic analyses.
B Boag; R Neilson; D Robinson; C M Scrimgeour; L L Handley
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Isotopes in environmental and health studies     Volume:  34     ISSN:  1025-6016     ISO Abbreviation:  Isotopes Environ Health Stud     Publication Date:  1998  
Date Detail:
Created Date:  1999-01-28     Completed Date:  1999-01-28     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9602611     Medline TA:  Isotopes Environ Health Stud     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  81-5     Citation Subset:  IM    
Stable Isotope Unit, Scottish Crop Research Institute, Dundee, UK.
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MeSH Terms
Carbon Isotopes
Cestoda / metabolism,  pathogenicity
Food Chain
Host-Parasite Interactions*
Nematoda / metabolism,  pathogenicity
Nitrogen Isotopes
Rabbits / metabolism,  parasitology*
Reg. No./Substance:
0/Carbon Isotopes; 0/Nitrogen Isotopes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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