Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)

Crowding occurs in situations of high population density and is a source of environmental stress. In these situations social density increases and personal space is at a premium.

Crowding outEdit

Crowding out is the process in biology where the introduction of new species to an environment causes new competition with previously existing species, usually while radically changing the environment.

When a new species is introduced to an environment, one of two things typically happens. One possibility is that the new species is unprepared for the new environment and dies out quickly. There would be a strong evolutionary pressure to adapt quickly or become extinct.

The second possibility is that the previously existing species are unprepared for the new one. The new species easily and quickly reproduces. As a result of the increase, the competing species may become extinct. Those competing species are said to be crowded out.

See alsoEdit

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.