Abstract
Parasites have been suggested to influence many aspects of host behaviour. Some of these effects may be mediated via their impact on host energy budgets. This impact may include effects on both energy intake and absorption as well as components of expenditure, including resting metabolic rate (RMR) and activity (e.g. grooming). Despite their potential importance, the energy costs of parasitism have seldom been directly quantified in a field setting. Here we pharmacologically treated female Cape ground squirrels (Xerus inauris) with anti-parasite drugs and measured the change in body composition, the daily energy expenditure (DEE) using doubly labelled water, the RMR by respirometry and the proportions of time spent looking for food, feeding, moving and grooming. Post-treatment animals gained an average 19 g of fat or approximately 25 kJ d(-1). DEE averaged 382 kJ d-1 prior to and 375 kJ d-1 post treatment (p> 0.05). RMR averaged 174 kJ d-1 prior to and 217 kJ d-1 post treatment (p
Original language | English |
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Pages (from-to) | 2169-2177 |
Number of pages | 9 |
Journal | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
Volume | 274(1622) |
Issue number | 1622 |
DOIs | |
Publication status | Published - 07 Sept 2007 |
ASJC Scopus subject areas
- General Agricultural and Biological Sciences
- Agricultural and Biological Sciences (miscellaneous)