Room size and offspring presence impact pair-bonded primate affiliation

Article Ecology

Moderate evidence for heritability in the duet contributions of a South American primate

Dena J. Clink et al.

Summary: Acoustic signals are common in mammals and play important roles in social bonding. Duetting has independently evolved at least four times in primates, but mechanisms shaping vocal variation remain unclear. In a study on captive coppery titi monkeys, researchers found moderate heritability in certain vocal features of duets, suggesting a possible kin recognition function.

JOURNAL OF EVOLUTIONARY BIOLOGY (2022)

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Article Behavioral Sciences

Assessing variability in affiliative maintenance behaviours in captive coppery titi monkeys, Plecturocebus cupreus

Lynea R. Witczak et al.

Summary: This study examines the predictors of affiliation in coppery titi monkeys, such as temperament, age at pairing, pregnancy status, and presence of an infant. The results show that pregnancy predicts higher levels of affiliation, while the presence of an infant and aggression do not predict variability in affiliation. The role of age in affiliation remains inconclusive.

ANIMAL BEHAVIOUR (2022)

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Review Behavioral Sciences

What is a pair bond?

Karen L. Bales et al.

Summary: Pair bonding is a psychological construct that has varying definitions across different taxonomic groups. This review aims to explore the historical definitions of pair bonding, behavioral evidence in different groups, and future directions in research on pair bonding.

HORMONES AND BEHAVIOR (2021)

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Article Family Studies

Parenting costs time: Changes in pair bond maintenance across pregnancy and infant rearing in a monogamous primate (Plecturocebus cupreus)

Chloe L. Karaskiewicz et al.

Summary: The study found that new parents need to balance pair-bond maintenance with infant care when transitioning to parenthood. Affiliation between titi monkey pairs peaks during pregnancy, decreases postpartum, but rises again after a certain period, influenced by the amount of time fathers spend carrying the infants.

EARLY ATTACHMENT NETWORKS TO MULTIPLE CAREGIVERS (2021)

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Article Zoology