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Sperm swimming speed and energetics vary with sperm competition risk in bluegill (Lepomis macrochirus)
Under sperm competition, a male’s fertilization success depends largely on the ejaculate characteristics of competing males. Theoretical models predict that, in external fertilizers, increased riskExpand
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Juveniles exposed to embryonic corticosterone have enhanced flight performance
Exposure to maternally derived glucocorticoids during embryonic development impacts offspring phenotype. Although many of these effects appear to be transiently ‘negative’, embryonic exposure toExpand
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Is there an energetic-based trade-off between thermoregulation and the acute phase response in zebra finches?
SUMMARY There has been recent interest in understanding trade-offs between immune function and other fitness-related traits. At proximate levels, such trade-offs are presumed to result from theExpand
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Motility, ATP levels and metabolic enzyme activity of sperm from bluegill (Lepomis macrochirus).
Male bluegill displays one of two life history tactics. Some males (termed "parentals") delay reproduction until ca. 7 years of age, at which time they build nests and actively courts females. OthersExpand
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Carotenoid-Based Ornaments of Female and Male American Goldfinches (Spinus tristis) Show Sex-Specific Correlations with Immune Function and Metabolic Rate
Conspicuous ornamentation has been linked to immunological and physiological condition in males of many species. In species where both sexes are ornamented, it is unclear whether the signal contentExpand
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Can Hypoxia Tolerance Explain Differences in Distribution of Two Co-Occurring North Temperate Sunfishes?
Many small, isolated north temperate waterbodies experience hypoxic conditions and winterkill events. Although such waterbodies are found in the natural ranges of two congeneric sunfishesExpand
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To boldly go where no goby has gone before: boldness, dispersal tendency, and metabolism at the invasion front
The successful establishment and expansion of invasive species may be linked to the behavior and dispersal tendency of individuals within an introduced population. To test the prediction that theExpand
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Effects of parasites on host energy expenditure: the resting metabolic rate stalemate
Detrimental effects of parasitism on host fitness are frequently attributed to parasite-associated perturbations to host energy budgets. It has therefore been widely hypothesized that energetic costsExpand
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Tropics, trophics and taxonomy: the determinants of parasite‐associated host mortality
Empirical studies often reveal deleterious effects of parasites on host survival, but the ecological and environmental pro cesses modulating parasite-associated host mortality are not wellExpand
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Cyclic bouts of extreme bradycardia counteract the high metabolism of frugivorous bats
Active flight requires the ability to efficiently fuel bursts of costly locomotion while maximizing energy conservation during non-flying times. We took a multi-faceted approach to estimate howExpand
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