pies in south Sweden, I enlarged or re- duced broods of various sizes by adding or removing nestlings in three breeding seasons. Reproductive output of dif- ferent clutch and brood sizes, and mean nestling …
Abstract In this study, I take a new approach to modeling the evolutionary constraint of protein sequence, introducing the stabilizing selection of pro-tein function into the nearly-neutral theory. In …
abstract: Disruptive selection is potentially critical in maintaining variation and initiating speciation. Yet there are few convincing ex-amples of disruptive selection from nature. Moreover, relatively little is …
Feb 14, 2007 · 9. What type of natural selection takes place when individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle? a. directional selection b. …
Trait selection was stabilizing and/or directional when the environment was harshest (winter) and disruptive and/or directional when conditions were milder (summer).
Male genitals are strikingly divergent in animals with internal fertilization. Most studies attempting to explain this diversity have focussed on testing the major hypotheses of genital evolution (the lock …
At the microevolutionary level, stabilizing se-lection is a process that restricts the amount of morphological variation in a population of in-dividuals (either through normalizing selection or …