landscape in Biological Definition

Fitness landscape

... the distribution of fitness values as a kind of landscape was first introduced by Sewall Wright in 1932 ... from which most paths lead uphill). A fitness landscape with many local peaks surrounded by deep valleys ... replication rate, on the other hand, a fitness landscape is said to be flat. An evolving population ...

Biology

... of organisms In population genetics the evolution of a population of organisms is sometimes depicted as if travelling on a fitness landscape . The arrows indicate the preferred flow of a population on the landscape, and the points A, B, and C are local optima. The red ball indicates a ...

Evolution

... endosymbiont evolutionary algorithm evolution of sex evolutionary tree experimental evolution fitness landscape genetic algorithm gradualism modern evolutionary synthesis natural science neutral theory of molecular evolution niche ...

Extinction

... is the most dramatic example of a population bottleneck. Habitat degradation The degradation of a species' habitat may alter the fitness landscape to such an extent that the species is no longer able to survive and becomes extinct. This may occur by direct effects, such as the environment ...

Metapopulation

... c This result, that N is always less than one, implies that some fraction of a species habitat will always be unoccupied. See also landscape ecology Conservation biology References Levins, R. (1969) "Some demographic and genetic consequences of environmental heterogeneity ...

Population genetics

... is Stanford -based population geneticist particularly interested in human population genetics. See also Ecological genetics Fitness landscape Founder effect Genotype-phenotype distinction Hardy-Weinberg principle Microevolution Molecular evolution Muller's ...