However, colony locations were never preceded by the nursery location. There were very few cases in which a social group birth location less than 15 days was preceded by a cage location. However, the colony and nursery cage locations less than 15 days were preceded by the social group location very frequently. The nursery location less than 15 days was also frequently preceded by the colony cage location. The table below presents summary birth weight statistics by sex and primary location.
Figures present cumulative birth weight distributions.
Figure 1 shows female and male distributions in one centile units for all individuals regardless of primary location. Figures 2a and 2b show distributions by location for each sex. Limitations A number of variables are associated with birthweights of captive primates in addition to sex and primary pregnancy location. Among these are maternal age and parity. It is likely that parity effects underlie the cage versus social group differences presented here.