Repeated evolution of local adaptation in swimming performance: population-level trade-offs between burst and endurance swimming inBrachyrhaphisfreshwater fish

Form, performance and trade-offs in swimming and stability of armed larvae

Diverse larval forms swim and feed with ciliary bands on arms or analogous structures. Armed morphologies are varied: numbers, lengths, and orientations of arms differ among species, change through development, and can be plastic in response to physiologicalor environmentalconditions.A hydromechanical model of idealized equal-armed larvae was used to examine functional consequences of these var...

Trade-offs between speed and endurance

expanding discipline of evolutionary physiology is a more detailed understanding of the role of physiological constraints in evolution (Garland and Carter, 1994; Feder et al., 2000). Physiological constraints can arise when an organism has to perform multiple tasks that place conflicting demands on its physiological design: an increase in the performance of one task may lead to a decrease in th...

Swimming performance trade-offs across a gradient in community composition in Trinidadian killifish (Rivulus hartii).

The impacts of predation and competition on life history, behavioral, and morphological traits are well established for many organisms, but effects on locomotor performance have received relatively little attention. We examined variation in sprint speed and critical swimming speed (U(crit), a measure of stamina) in the Trinidadian killifish (Rivulus hartii) across a gradient of ecological commu...

Performance Trade-offs of Tcp Adaptation Methods

Comparison between sprint and endurance swimming records in the morning and evening following caffeine consumption

Introduction: Research has shown that the time of day to absorb caffeine is an intervention variable which should be considered when evaluating caffeine ergogenic. The purpose of this study is to comprise sprint and endurance swimming records on female swimmers in the morning and evening following consumption of caffeine. Material and Methods: Fourteen female swimmers (age 24.6 ± 4 years, BMI 2...