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Wildebeest migrating in the Serengeti. Migration, in ecology, is the large-scale movement of members of a species to a different environment.Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type.
Animal migration; Bird migration; Plant migration, see Seed dispersal, the movement or transport of seeds away from the parent plant; Gene migration, a process in evolution and population genetics; Cell migration, a process in the development and maintenance of multicellular organisms Collective cell migration, describing the movements of group ...
In population genetics, gene flow (also known as migration and allele flow) is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent allele frequencies and therefore can be considered a single effective population.
Goose migration is an iconic migration phenomenon in parts of the Northern Hemisphere [1]. Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis.
Cell migration is a central process in the development and maintenance of multicellular organisms. Tissue formation during embryonic development , wound healing and immune responses all require the orchestrated movement of cells in particular directions to specific locations.
Insect migration is the seasonal movement of insects, particularly those by species of dragonflies, beetles, butterflies and moths. The distance can vary with species and in most cases, these movements involve large numbers of individuals.
Net migration is the difference between the number of people arriving and leaving the country.
"Diffusionism", in its original use in the 19th and early 20th centuries, did not preclude migration or invasion.It was rather the term for assumption of any spread of cultural innovation, including by migration or invasion, as opposed "evolutionism", assuming the independent appearance of cultural innovation in a process of parallel evolution, termed "cultural evolutionism".