Publications by authors named "Siti Norsyuhada Kamaluddin"
Assessments of the welfare status of captive and semi-captive animals often compare how their expression of natural behaviors differs from that of free-ranging conspecifics. From December 2015-2016, we recorded and analyzed the activity budget and postural behaviors of three orangutans in Bukit Merah Orang Utan Island (BMOUI) to evaluate their welfare status. The orangutans' activity budget was dominated by resting (60%), feeding (13%), playing (14%), and moving (9%).
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- This study investigates how the mandible shape of Japanese macaques varies between wild and captive environments, revealing significant differences.
- Captive macaques have a square jaw and longer tooth rows, which may indicate a masculinization of their mandibles compared to their wild counterparts.
- The research highlights that social environment and hormonal changes in captivity likely affect skull morphology, but more research is needed to confirm these findings and explore other potential causes of variation.