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Article
Nature 265, 415 - 421 (03 February 1977); doi:10.1038/265415a0

Aggregation, migration and population mechanics

L. R. Taylor* & R. A. J. Taylor

*Rothamsted Experimental Station, Harpenden, Hertfordshire, UK
Imperial College Field Station, Silwood Park, Ascot, Berkshire, UK

A concept is developed for the regulation of populations by density-dependent movement, rather than by overt competition alone. Fitness is seen as maximising the reproductive advantage of a balance between migratory and congregatory behaviours. Population density is shown to be spatially, as well as temporally dynamic and a mechanism is proposed that accounts for observed spatial behaviour.

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