Document Detail

Effects of Plagiorhynchus cylindraceus (Acanthocephala) on the energy metabolism of adult starlings, Sturnus vulgaris.
MedLine Citation:
PMID:  1780177     Owner:  NLM     Status:  MEDLINE    
Although the relationship between intestinal parasitism, the ingestion and use of energy, and host survival is expected, little work has been done to outline the effect of such organisms upon their host's nutritional requirements in an ecological context. This study is the first to demonstrate that an intestinal helminth previously reported to be of little or no histopathological consequence, Plagiorhynchus cylindraceus, has a significant detrimental impact upon the flow of food energy through a definitive host, the European starling, Sturnus vulgaris. Within both male and female adult European starlings reductions in standard metabolic rates occurred as the result of initial infection, indicating that the host's basal metabolism/thermal regulatory abilities were altered. Moreover, initially infected male starlings, but not females, had an increased consumption and excretion of energy and maintained lower average daily body weights versus controls when temperature stressed. These results appear to be due to either a parasite-mediated alteration in host activity and/or to the disruption of host-digestive abilities. Additionally, these data indicate that, overall, male and female S. vulgaris respond differently to infection and that intestinal helminths normally thought to be of little or no pathological consequence to the host are factors that should be addressed in future studies regarding animal energetics, ecology, and behaviour.
V A Connors; B B Nickol
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Parasitology     Volume:  103 Pt 3     ISSN:  0031-1820     ISO Abbreviation:  Parasitology     Publication Date:  1991 Dec 
Date Detail:
Created Date:  1992-03-10     Completed Date:  1992-03-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0401121     Medline TA:  Parasitology     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  395-402     Citation Subset:  IM    
School of Biological Sciences, University of Nebraska-Lincoln 68588-0118.
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MeSH Terms
Acanthocephala / physiology*
Basal Metabolism
Bird Diseases / metabolism*
Body Temperature Regulation
Body Weight
Energy Intake
Energy Metabolism*
Helminthiasis / complications,  metabolism
Helminthiasis, Animal*
Intestinal Diseases, Parasitic / complications,  metabolism,  veterinary*
Oxygen Consumption
Sex Characteristics
Stress, Physiological / complications,  veterinary
Grant Support

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

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