Sexual selection: when to expect trade-offs

Sexual selection: when to expect trade-offs.

Empirical evidence is mixed for interspecific trade-offs in investment among sexually selected traits. One important reason may be the way resources are allocated among species. Consider a set of species that obtains the same fitness pay-off for investment in song or plumage. Simulations where resources were normally distributed among species revealed significant trade-offs between song and plu...

When natural selection should optimize speed-accuracy trade-offs

Considering Trade-offs When Assessing Resilience

This article describes the development of a prototype Resilience Analysis Grid for rail traffic management. The findings from testing of the initial model led to the identification of a set of potential vectors for improvement, in particular the need to integrate trade-offs. Based on Resilience Engineering trade-off theory this paper discusses how to integrate trade-offs into the system descrip...

Detecting Ecological Trade-offs Using Selection Experiments

Theories of the evolution of niche breadth usually depend on the assumption that genotypes that are well adapted to exploit one habitat or resource are not well adapted to others. Such ‘‘trade-offs’’ are often apparent in interspecific comparisons, but have been harder to document at the within-population level. Selection experiments provide a promising means for detecting within-population tra...

Trade-offs in Daphnia Habitat Selection

Diel vertical migration (DVM) is a dynamic behavioral pattern found extensively in the world’s oceans and lakes, yet the role of food and temperature distribution on DVM is still unclear. While DVM has been mostly studied in systems with surface food maxima, deep-water food maxima are quite common in lakes and oceans. In such ecosystems, optimal conditions of temperature and food are uncoupled....