Mother-Offspring Relationships in Tibetan Macaques (<i>Macaca thibetana</i>) at Mt. Huangshan, China

<p>The mammalian mother-offspring relationship, the first bond an offspring will form, is complex in its development, as well as its costs and benefits to both mother and offspring. Across various non-human primate species, researchers have extensively examined this relationship, yet very little is known about how it changes as offspring age. Mother-infant relationships within the genus <em>Macaca</em>, for example, have been observed for decades in both field and laboratory settings. Researchers have found species differences in maternal behavior, as well as a female offspring bias in female philopatric societies. However, little is known about the mother-offspring relationship of Tibetan macaques (<em>Macaca thibetana</em>) from the two habituated sites in China, Mt. Emei and Mt. Huangshan. In 1991, researchers at Mt. Emei focused on maternal behaviors and found a female-infant bias across the group. It is imperative to study both individuals, however, as mother and offspring contribute efforts into a feedback loop that cannot be defined from the mother’s perspective alone. During the summer of 2016, I observed 12 mothers and 19 immatures (juveniles: 1 – 5 years old; infants: < 1-year-old) at Mt. Huangshan, specifically their behaviors and spatial relationships. I used principal component analysis (PCA) to compress the number of behaviors. I calculated model optimization by backward selection was to predict the principal components based on the characteristics of the mother (i.e., age, parity, matriline size, and dominance rank) and offspring (i.e., age and sex). From these results, I concluded from mother and offspring perspectives that maternal investment biased female offspring.</p>

Name thesis:degree_name

Master of Science (MS)

Discipline thesis:degree_discipline

Primate Behavior

Year dc:date.available

2017

Author dc:creator

• Martinez, Courtney

Contributors dc:contributor

• Lori K. Sheeran
• Jessica A. Mayhew
• Lixing Sun

• Mt. Huangshan
• China; monkey valley; monkeys; mother-juvenile relationships; mother-infant relationships; habituated
• Animal Studies
• Behavior and Ethology

Language dc:language

English

Repository record dc:identifier

https://digitalcommons.cwu.edu/etd/781

OAI identifier oai:identifier

oai:digitalcommons.cwu.edu:etd-1753