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A banner advocating "remigration" during an anti-immigration protest in Calais, France, in 2015. Remigration, sometimes euphemized as "repatriation", [1] [failed verification] [2] [failed verification] [3] [failed verification] is a far-right and Identitarian political concept referring to the forced or promoted return of non-ethnically European immigrants, often including their descendants ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
[2] [3] [4] As such, there is no simple accepted definition of migration. [5] One of the most commonly used definitions, proposed by the zoologist J. S. Kennedy [6] is Migratory behavior is persistent and straightened-out movement effected by the animal's own locomotory exertions or by its active embarkation on a vehicle.
Gene flow is the transfer of alleles from one population to another population through immigration of individuals.. In population genetics, gene flow (also known as migration and allele flow) is the transfer of genetic material from one population to another.
Reinforcement is the deliberate introduction and integration of an organism into an area where its species is already established. [1] This mode of translocation is implemented in populations whose numbers have dropped below critical levels, become dangerously inbred, or who need artificial immigration to maintain genetic diversity. [15]
An acquired characteristic is a non-heritable change in a function or structure of a living organism caused after birth by disease, injury, accident, deliberate modification, variation, repeated use, disuse, misuse, or other environmental influence.
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.
Assisted migration is a specific type of species introduction. Species introduction is any act of establishing a species in a habitat it does not currently occupy. It often refers to a long-distance relocation, such as the accidental introduction of an invasive species from one continent to another, or the intentional relocation of a species in decline to a habitat where it can persist.