Michelle L. Rafacz

  • Citations Per Year
Learn More
Only one of the 15 species of monogamous hylobatids, the siamang (Symphalangus syndactylus), demonstrates direct paternal care in the form of infant-carrying, providing a unique model for examining hormonal correlates of paternal care differences between siamangs and gibbons. We used behavioral data and fecal hormone analysis to investigate (1) differences(More)
Olfactory enrichment, like odor cues, can positively affect behavior, reproductive success, and stress physiology in zoo-housed species. Our goal was to determine if odor cues were enriching to the African wild dog (AWD; Lycaon pictus), a species with a complex social structure and a highly developed sense of smell. Our objectives were to: (1) examine(More)
Ovarian cyclicity, reproductive behavior, and gestation length were characterized in female hylobatids using non-invasive fecal steroid analyses and behavioral data. Progestagen metabolites were quantified in fecal samples collected for 3 months from seven females housed at seven North American zoological institutions. Mean (±SEM) ovarian cycle length was(More)
Social bonds between adult white-faced sakis (Pithecia pithecia) are strongest between male/female pairs, despite absence of monogamy and pair-bonding behaviors. Applications of carbon and nitrogen stable isotope analysis for understanding modern and extinct primate feeding ecology Bone strain and finite element modeling of the Cebus mandible during hard(More)
  • 1