Migration, migratory, or migrate may refer to:

Human migration

* Human migration, physical movement by humans from one region to another **

International migration International migration occurs when people cross state boundaries and stay in the host state for some minimum length of the time. Migration occurs for many reasons. Many people leave their home countries in order to look for economic opportunities ...

, when peoples cross state boundaries and stay in the host state for some minimum length of time

Natural sciences

Biology

* Migration (ecology), the large-scale movement of species from one environment to another **

Animal migration Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, ...

Bird migration Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting b ...

* Plant migration, see

Seed dispersal In Spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, ...

, the movement or transport of seeds away from the parent plant * Gene migration, a process in evolution and

population genetics Population genetics is a subfield of genetics that deals with genetic differences within and between populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and pop ...

Cell migration 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 direct ...

, a process in the development and maintenance of multicellular organisms **

Collective cell migration Collective cell migration describes the movements of group of cells and the emergence of collective behavior from cell-environment interactions and cell-cell communication. Collective cell migration is an essential process in the lives of multicell ...

, describing the movements of group of cells

Physics and chemistry

Molecular diffusion Molecular diffusion, often simply called diffusion, is the thermal motion of all (liquid or gas) particles at temperatures above absolute zero. The rate of this movement is a function of temperature, viscosity of the fluid and the size (mass) o ...

, in physics *

Migration (chemistry) In organic chemistry, a rearrangement reaction is a broad class of organic reactions where the carbon skeleton of a molecule is rearranged to give a structural isomer of the original molecule. Often a substituent moves from one atom to another ato ...

, type of reaction in organic chemistry *

Seismic migration Seismic migration is the process by which seismic events are geometrically re-located in either space or time to the location the event occurred in the subsurface rather than the location that it was recorded at the surface, thereby creating a more ...

, in seismic and ground penetrating radar data processing * Microscopic motion of material caused by an external force, distinct from spontaneous diffusion, including

drift current In condensed matter physics and electrochemistry, drift current is the electric current, or movement of charge carriers, which is due to the applied electric field, often stated as the electromotive force over a given distance. When an electric fi ...

, electrophoresis, electromigration, thermodiffusion,

sedimentation Sedimentation is the deposition of sediments. It takes place when particles in suspension settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the ...

, in physical chemistry and materials * Planetary migration, the alteration of the satellite's orbital parameters

Information technology

* Migration (virtualization), the process by which a running virtual machine is moved from one physical host to another * Content migration, the process of moving information to a new system * Data migration, the process of transferring data between storage types, formats, or computer systems *

PC migration PC migration is the process of transferring the entire user environment (e.g. personal documents and settings) between two computer systems. The migration problem is often associated with the concept of total cost of ownership where the requiremen ...

, the process of transferring the entire user environment between two computer systems *

Schema migration In software engineering, a schema migration (also database migration, database change management) refers to the management of version-controlled, incremental and reversible changes to relational database schemas. A schema migration is performed ...

, the management of incremental, reversible changes to relational database schemas *

Software migration Legacy modernization, also known as software modernization or platform modernization, refers to the conversion, rewriting or porting of a legacy system to modern computer programming languages, architectures (e.g. microservices), software librarie ...

, the conversion, rewriting or porting of a legacy system to a modern computer system *

System migration System migration involves moving a set of instructions or programs, e.g., PLC (programmable logic controller) programs, from one platform to another, minimizing reengineering. Migration of systems can also involve downtime, while the old syst ...

, the tasks involved when moving data and applications from current hardware to new hardware

Arts and media

Music

* "Migrate" (song), a 2008 song from Mariah Carey's album ''E=MC²'' * ''Migration'' (The Amboy Dukes album) * ''Migration'' (Antonio Sánchez album), a 2007 album by Antonio Sánchez * ''Migration'' (Bonobo album), 2017 album by Bonobo * ''Migration'' (Creative Source album), the second album by Los Angeles, California-based R&B group Creative Source * ''Migration'' (Dave Grusin album) * ''The Migration'', album by

Scale the Summit Scale the Summit is an American instrumental progressive metal band based out of Houston, Texas. It formed in 2004 and signed to Prosthetic Records. The band is influenced by other progressive acts such as Cynic and Dream Theater. The band gaine ...

* ''Migrations'' (album), a 2006 album by The Duhks

Other media

* ''Migrations'', a 2000 photo essay and book by

Sebastião Salgado Sebastião Ribeiro Salgado Júnior (born February 8, 1944) is a Brazilian social documentary photographer and photojournalist. He has traveled in over 120 countries for his photographic projects. Most of these have appeared in numerous press pu ...

* ''Migrations'', 1929 novel by

Miloš Crnjanski Miloš Crnjanski ( sr-cyr, Милош Црњански, ; 26 October 1893 – 30 November 1977) was a Serbian writer and poet of the expressionist wing of Serbian modernism, author, and a diplomat. Biography Crnjanski was born in Csongrád (mod ...

* ''Migrations'' (film), a 1988 Yugoslav film based on the novel * ''Migrations'', by Karim Alrawi, a stage play and winner of the John Whiting Award * ''Migration'' (film), a 2014 animated film by Mark Lomond and Johanne Ste-Marie * ''Migration'', an upcoming film from Illumination Entertainment

Other uses

Piercing migration Piercing migration is the process that occurs when a body piercing moves from its initial location. This process can be painful or go unnoticed, until it has progressed. Given enough time, a ring may migrate entirely outside of the skin, althoug ...

, in body modification, a process that occurs when a body piercing moves from its initial location