TERME: Description du gloassaire des termes.
Contexte: Ecologie
operational sex ratio
The ratio of males and females available to mate with one another. This may vary greatly from the actual sex ratio
Référence
Barlow, George W.. 2002. "The Cichlid Fishes (Nature's Grand Experiment in Evolution)". Perseus Publishing. pp. 352 pp. (crc03927) (résumé)