WebbDisruptive selection arises when extreme phenotypes have a fitness advantage compared to more-intermediate phenotypes. Theory and evidence suggest that intraspecific resource competition is a key driver of disruptive selection. However, while competition can be indirect (exploitative) or direct (interference), the role of interference competition in … WebbThe birds shown above have beaks with three different shapes and sizes. These genetic variations in the beak each appeared initially due to... A.) environmental factors. B.) …

Discordance between genomic divergence and phenotypic …

Webb4 beak models, 1 of each model for each lab group: toothpicks, plastic forks, spoons, and knives 2. Two large paper plates 3. Two model food items: hard food items(beans) and … WebbIndividuals of this bird species vary over two characteristics (color and beak type), with three possible phenotypes for each one. The user can choose individuals to form an initial population and monitor variation through successive generations. Birds breed independently of their phenotype, and natural selection (based on the fitness of shepwell centre walsall

Plumage condition in laying hens: genetic parameters for direct …

WebbLab: Natural Selection (modified from Sepup: Science & Global Issues – Natural Selection) Background: In this simulation you will investigate populations of birds living … WebbProcedure Step 1: Simulate Birds with Three Beak Phenotypes Each flock of birds will have a different beak phenotype. Flock X will have pointed, piercing beaks that are good at … WebbB) Small birds mutating their beak genes with the result that later-generation offspring have larger beaks. C) Small birds anticipating the long drought and eating more to gain weight and, consequently, growing larger beaks. D) More small-beaked birds dying than the larger-beaked birds. The offspring produced in subsequent generations have a ... shepwell