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- W4285036386 abstract "Wild animals have parasites that can compromise their physiological and/or behavioural performance. Yet, the extent to which parasite load is related to intraspecific variation in performance traits within wild populations remains relatively unexplored. We used pumpkinseed sunfish (Lepomis gibbosus) and their endoparasites as a model system to explore the effects of infection load on host aerobic metabolism and escape performance. Metabolic traits (standard and maximum metabolic rates, aerobic scope) and fast-start escape responses following a simulated aerial attack by a predator (responsiveness, response latency and escape distance) were measured in fish from across a gradient of visible (i.e. trematodes causing black spot disease counted on fish surfaces) and non-visible (i.e. cestodes in fish abdominal cavity counted post-mortem) endoparasite infection. We found that a higher infection load of non-visible endoparasites was related to lower standard and maximum metabolic rates, but not aerobic scope in fish. Non-visible endoparasite infection load was also related to decreased responsiveness of the host to a simulated aerial attack. Visible endoparasites were not related to changes in metabolic traits or fast-start escape responses. Our results suggest that infection with parasites that are inconspicuous to researchers can result in intraspecific variation in physiological and behavioural performance in wild populations, highlighting the need to more explicitly acknowledge and account for the role played by natural infections in studies of wild animal performance." @default.
- W4285036386 created "2022-07-12" @default.
- W4285036386 creator A5007755440 @default.
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- W4285036386 creator A5051941590 @default.
- W4285036386 creator A5055070112 @default.
- W4285036386 creator A5074935104 @default.
- W4285036386 date "2022-08-01" @default.
- W4285036386 modified "2023-10-01" @default.
- W4285036386 title "Increased parasite load is associated with reduced metabolic rates and escape responsiveness in pumpkinseed sunfish" @default.
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