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Ecologically effective population
Organisms & populations
A population occurring at sufficient abundance or density and with appropriate population structure and distribution to perform its specified ecological interactions, roles, or functions. Ecological effectiveness is distinct from persistence: a population may persist without occurring at a level sufficient to perform a particular ecological function consequentially.
Soulé, M. E., Estes, J. A., Berger, J., & Martínez del Río, C. (2003). Ecological effectiveness: Conservation goals for interactive species. Conservation Biology, 17(5), 1238–1250.
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