TERTIARY SEX-RATIOS IN WILD GALAGO POPULATIONS (MAMMALIA, PRIMATES)

Previous studies have proposed that species within the genus Galago ex hibit a secondary sex ratio that is strongly skewed (approximately 70% ) in favour of males. It has further been suggested that this sex rati o is maintained into adulthood. We present data obtained from 669 adul t galagos, representing eight wild populations and five species, to in dicate that the sex ratio among sexually mature individuals is close t o parity. If the observations regarding sex ratios at birth are correc t, this implies that juvenile/sub-adult males suffer significantly hig her mortalities than do their female counterparts.