title: Aggregation, migration and population mechanics.
abstract: 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.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D005075:Biological Evolution; D004463:Ecology; D006801:Humans; D008954:Models, Biological; D009026:Mortality; D009036:Moths / Q000502:physiology; D011156:Population Density; D011157:Population Dynamics; D013997:Time Factors; D006113:United Kingdom