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#deme

2 public questions tagged with this topic.

Population Ecology

A deme refers to:

“Randomly mating population group” for a deme refers to. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Mechanistic support comes from showing how resource limitation, enemies, mate availability, or physiological stress changes demographic performance. A descriptive association alone does not establish regulation or causation. The remaining alternatives—“A large continuous population”, “Completely isolated population”, “Population with no migration”—refer to different states, processes, or scales

Ref: Campbell Biology, Urry et al., 12th Ed., Unit 8 Ecology

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Density Dispersion Meta pop

Deme is defined as:

A deme is a local interbreeding population: individuals share a geographic area and constitute a reproductive community with appreciable random mating relative to individuals outside the group. In population genetics, the idealized deme is often treated as panmictic, meaning mating is random with respect to genotype within that local unit. This permits allele-frequency models such as Hardy–Weinberg expectations to be applied, while migration connects different demes. Real demes may deviate from perfect random mating because of inbreeding, assortative mating, social structure, or spatial subdiv

Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 9

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