In evolutionary biology, fitness landscapes or adaptive landscapes are used to visualize the relationship between genotypes (or phenotypes) and reproductive success. It is assumed that every genotype has a well-defined replication rate (often referred to as fitness). This fitness is the "height" of the landscape. Genotypes which are very similar are said to be "close" to each other, while those that are very different are "far" from each other.
The two concepts of height and distance are sufficient to form the concept of a "landscape". The set of all possible genotypes, their degree of similarity, and their related fitness values is then called a fitness landscape. The idea of a fitness landscape helps explain flawed forms in evolution, including exploits and glitches in animals like their reactions to supernormal stimuli.
In evolutionary optimization problems, fitness landscapes are evaluations of a fitness function for all candidate solutions (see below). The idea of studying evolution by visualizing the distribution of fitness values as a kind of landscape was first introduced by Sewall Wright in 1932.
Other articles related to "fitness landscape, fitness, landscape":
... A fitness landscape, first conceptualized by Sewall Wright, is a way of visualising fitness in terms of a high-dimensional surface, in which height indicates fitness, and each of the other ... Peaks correspond to local fitness maxima it is often said that natural selection always progresses uphill but can only do so locally ... cannot return to the less-fit "valleys" of the landscape on the way to reach higher peaks ...
... in 1915, earned by only 10 Scouts, no known surviving specimens Invention Landscape Gardening 1958 ... Replaced by Landscaping in 1958 Landscaping Landscaping 1966 ... Replaced Landscape Gardening, replaced by ...
... Apart from the field of evolutionary biology, the concept of a fitness landscape has also gained importance in evolutionary optimization methods such as genetic algorithms or evolutionary strategies ... of destination addresses in the case of the delivery truck), which is called the fitness function or fitness landscape ... the solutions are mutated and selected for those with higher fitness, until a satisfying solution has been found ...
... An adaptive landscape is a hypothetical topological landscape upon which evolution is envisioned to take place ... It is similar to Wright's fitness landscape in which the location of each point represents the genotype of an organism and the altitude represents the fitness of that ... However, unlike Wright's rigid landscape, the adaptive landscape is pliable ...
Famous quotes containing the words landscape and/or fitness:
“I have not written in vain if I have heretofore done anything towards diminishing the reputation of the Renaissance landscape painting.”
—John Ruskin (18191900)
“Parentage is a very important profession; but no test of fitness for it is ever imposed in the interest of children.”
—George Bernard Shaw (18561950)