Migration
Encyclopedia
Migration, Migratory behavior, or Migratory may refer
- Gene migration, a process in evolution and population geneticsPopulation geneticsPopulation genetics is the study of allele frequency distribution and change under the influence of the four main evolutionary processes: natural selection, genetic drift, mutation and gene flow. It also takes into account the factors of recombination, population subdivision and population...
- Animal migrationAnimal migrationAnimal migration is the relatively long-distance movement of individuals, usually on a seasonal basis. It is a ubiquitous phenomenon, found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The trigger for the migration may be local...
, the travelling of long distances in search of a new habitat- Human migrationHuman migrationHuman migration is physical movement by humans from one area to another, sometimes over long distances or in large groups. Historically this movement was nomadic, often causing significant conflict with the indigenous population and their displacement or cultural assimilation. Only a few nomadic...
, physical movement by humans from one area to another - Bird migrationBird migrationBird migration is the regular seasonal journey undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat or weather. Sometimes, journeys are not termed "true migration" because they are irregular or in only one direction...
, the regular seasonal journey undertaken by many species of birds- Reverse migrationReverse migrationReverse migration is a phenomenon in bird migration. Although some large birds such as swans learn migration routes from their parents, in most small species, such as passerines, the route is genetically programmed, and young birds can innately navigate to their wintering area.Sometimes this...
, a phenomenon in bird migration
- Reverse migration
- Fish migrationFish migrationMany types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres...
, the regular journey of fish - Insect migration, the seasonal movement of insects
- Human migration
- Diel vertical migrationDiel vertical migrationDiel vertical migration, also known as diurnal vertical migration, is a pattern of movement that some organisms living in the ocean and in lakes undertake each day. Usually organisms move up to the epipelagic zone at night and return to the mesopelagic zone of the oceans or to the hypolimnion zone...
, a daily migration undertaken by some ocean organisms - Plant migration, see Seed dispersalSeed dispersalSeed dispersal is the movement or transport of seeds away from the parent plant. Plants have limited mobility and consequently rely upon a variety of dispersal vectors to transport their propagules, including both abiotic and biotic vectors. Seeds can be dispersed away from the parent plant...
, the movement or transport of seeds away from the parent plant - Forest migrationForest migrationForest migration is the movement of large seed plant dominated communities in geographical space over time.The emphasis of forest migration is placed on the movement of the tree communities that make up the forest community. Though an individual tree is permanently fixed in a location, tree...
, the movement of large seed plant dominated communities in geographical space over time
Computing
- Data migrationData migrationData migration is the process of transferring data between storage types, formats, or computer systems. Data migration is usually performed programmatically to achieve an automated migration, freeing up human resources from tedious tasks...
, moving information between data storage devices - PC migrationPC migrationPC migration is the process of transferring the entire user environment between two computer systems. The migration problem is often associated with the concept of Total Cost of Ownership where the requirement to migrate information is considered a "cost" in purchasing a new PC, similar...
, moving a user environment between different computers or operating systems - Process migrationProcess migrationProcess migration is when processes in computer clusters are able to move from machine to machine. Process migration is implemented in, among others, OpenMosix....
, in computer & application programming - System migrationSystem migrationSystem migration involves moving a set of instructions or programs, e.g., PLC programs, from one platform to another, minimizing reengineering....
, moving computer programs from one platform to another
Other science
- Cell migrationCell migrationCell 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...
, in biology - Molecular diffusion, in physics
- Migration (chemistry), type of reaction in organic chemistry
- Geophysical migrationGeophysical migrationGeophysical migration is the process by which geophysical 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 an accurate image of the subsurface...
, in seismic and ground penetrating radar data processing - Microscopic motion of material caused by an external force, distinct from spontaneous diffusion, including drift currentDrift currentIn 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 field is applied across a semiconductor material,the...
, electrophoresisElectrophoresisElectrophoresis, also called cataphoresis, is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. This electrokinetic phenomenon was observed for the first time in 1807 by Reuss , who noticed that the application of a constant electric...
, electromigrationElectromigrationElectromigration is the transport of material caused by the gradual movement of the ions in a conductor due to the momentum transfer between conducting electrons and diffusing metal atoms. The effect is important in applications where high direct current densities are used, such as in...
, thermodiffusion, sedimentationSedimentationSedimentation is the tendency for particles in suspension to 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 forces acting on them: these forces can be due to gravity, centrifugal acceleration...
, in physical chemistry and materials - Planetary migrationPlanetary migrationPlanetary migration occurs when a planet or other stellar satellite interacts with a disk of gas or planetesimals, resulting in the alteration of the satellite's orbital parameters, especially its semi-major axis...
, the alteration of the satellite's orbital parameters
Arts and entertainment
- "Migrate" (song)Migrate (song)"Migrate" is a song by American singer-songwriter Mariah Carey, included as a track on her eleventh studio album, E=MC² . Written by Carey, Nathaniel Hills, Faheem Najim, and Balewa Muhammad, and produced by the former two, the song draws influence from pop and R&B music genres...
, a song from Mariah Carey's album E=MC² - Migrations, a 2000 photo essay and book by Sebastião SalgadoSebastião SalgadoSebastião Salgado is a Brazilian social documentary photographer and photojournalist.-Biography:Salgado was born on February 8, 1944 in Aimorés, in the state of Minas Gerais, Brazil. After a somewhat itinerant childhood, Salgado initially trained as an economist, earning a master’s degree in...
- Migrations (film)Migrations (film)Migrations is a 1988 French – Yugoslavian drama film directed by Aleksandar Petrović and starring Isabelle Huppert.-Cast:* Avtandil Makharadze – Vuk Isaković* Isabelle Huppert – Dafina Isaković* Richard Berry – Aranđel Isaković* Bernard Blier...
, a 1988 film - Migrations (album)Migrations (album)Migrations is a 2006 album by The Duhks. It is released under the Sugar Hill Records label.-Track listing:# Ol' Cook Pot # Mountains o' Things # Heaven's My Home...
, a 2006 album by The Duhks - Migration (Creative Source album)Migration (Creative Source album)-Track listing:# I'm Gonna Get There - 2:27 #Harlem - 4:57#I Just Can't See Myself Without You - 7:30#Keep On Movin' - 2:35...
- Migration (The Amboy Dukes album)
Other
- Piercing migrationPiercing migrationPiercing 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, although it may only migrate a small amount and come to...
, in body modification, a process that occurs when a body piercing moves from its initial location