Construct · 3 fields · 4 citations

Where does migration collide?

One name. Different field. Different construct. One map.

● jingle · one word, three constructs Nearest construct by meaningmovementcompare the meanings
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Every construct on the map is compared with every other by the meaning of its definitions, and the closest one is surfaced here. The nearest construct to migration is movement.

Hold this as a prompt, not a verdict. Two constructs sitting close in meaning is a reason to read them side by side and decide for yourself whether they are one idea under two names. It is not proof that they are. Compare the meanings in the Collider.

migration3 CONSTRUCTSHuman migrationLEE · PUSH AND PULLAnimal migrationDINGLE · SEASONAL MOVECell migrationRIDLEY · CRAWLING CELL

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1885Human migration2003Cell migration2007Animal migration
2026

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Demography and migration studies

the relatively permanent movement of people across a boundary to take up a new place of residence.

The relatively permanent movement of people across a boundary to take up a new place of residence, together with the theories of why they move. Ravenstein's 1885 The Laws of Migration drew empirical regularities from census returns, and Lee's 1966 A theory of migration recast the decision as a balance of push factors at the origin, pull factors at the destination, intervening obstacles, and personal factors. The referent is a person relocating between areas, counted as flows and as the net migration rate, not an animal on a seasonal circuit, a cell crawling through tissue, or a database moved between systems.[1][2]

Unit
A person's change of residence across a boundary, aggregated as migration flows and the net migration rate
Recovery means
Return and circular migration can reverse a flow, and out-migration from one area is in-migration to another
Measured by
Estimated from censuses, population registers, and surveys as gross and net flows, migration rates, and origin-destination matrices

Ecology and zoology

the regular, often seasonal, directional movement of animal populations between separate habitats such as breeding and wintering grounds.

The regular, often seasonal, directional movement of animals between separate habitats, such as breeding and wintering grounds, undertaken by the whole population or cohort rather than by wandering individuals. Dingle and Drake's 2007 What is migration? defined it as persistent, straightened-out movement that is not arrested by the resources that would halt ordinary foraging, marking off true migration from dispersal, ranging, and nomadism. The referent is a bird, ungulate, or fish traversing a route on a life-cycle schedule, not a human changing address, a cell moving within tissue, or data transferred between systems.[3]

Unit
An animal's round-trip journey between habitats, tracked as routes, timing, and distance
Recovery means
Migration is typically a return circuit, with the animal or its descendants completing the journey back to the origin habitat
Measured by
Followed by banding, satellite and GPS tags, radar, and stable isotope analysis to map routes, timing, and connectivity

Cell biology

Directed crawling of a cell

The coordinated crawling of a cell across or through tissue, driven by cycles of actin polymerisation at the leading edge, adhesion, and retraction at the rear, and often steered by chemical gradients through chemotaxis. Ridley and colleagues' 2003 Cell migration: integrating signals from front to back synthesised how signalling pathways organise the cytoskeleton and adhesions into one directed movement, central to embryonic development, wound healing, and cancer metastasis. The referent is a single cell relocating within an organism over micrometres and hours, not a population of animals on a route, a person changing residence, or a data set moved between machines.[4]

Unit
A cell's directed displacement through tissue, in micrometres per hour
Recovery means
Not applicable
Measured by
Quantified by time-lapse microscopy and cell-tracking assays as speed, persistence, and directionality, and in vitro by wound-healing and transwell assays

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Nearby collisions

metastasis3 fields · 4 citationsjingle · one word, three constructsmovement2 fields · 3 citationsjingle · one word, two constructspopulation4 fields · 4 citationsjingle · one word, four constructs

References

  1. Ravenstein, E. G. (1885). The laws of migration. Journal of the Statistical Society of London, 48(2), 167. https://doi.org/10.2307/2979181
  2. Lee, E. S. (1966). A theory of migration. Demography, 3(1), 47–57. https://doi.org/10.2307/2060063
  3. Dingle, H., & Drake, V. A. (2007). What is migration? BioScience, 57(2), 113–121. https://doi.org/10.1641/B570206
  4. Ridley, A. J., Schwartz, M. A., Burridge, K., Firtel, R. A., Ginsberg, M. H., Borisy, G., Parsons, J. T., & Horwitz, A. R. (2003). Cell migration: Integrating signals from front to back. Science, 302(5651), 1704–1709. https://doi.org/10.1126/science.1092053

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