) The bonnet macaque has a very wide range of gestures and behaviors, which can be easily differentiated. Lip-smacking is one of the most common affiliative behaviors, where one individual may open and close its mouth in rapid succession, with its tongue between its teeth and its lips pressing against each other, giving an audible sound. A grimace is the most common gesture of fear or submission that a subordinate shows to a dominant individual during aggressive encounters. It consists of pulling back its upper lip, showing its upper teeth. It also has distinct alarm calls for predators such as
pythons and
leopards.
Communication Bonnet macaques that are living in the presence of humans show flexible and conditional signaling behaviors. Research conducted in southern India focused on communicative behaviors produced during interactions that were goal-oriented, specifically involving the gain of food. Several features differentiate these signals from incidental behavior such as directing signals toward a specific recipient, using signals only when the recipient is attentive, repeating signals when the first initial attempt was unsuccessful, and continuing the signal until the individual has received a response in return. These communicative gestures involve combinations of gestures, body orientation, and eye behavior. Furthermore, signaling behavior. occurs most often in human-dominated environments such as temples, roadside areas, and urban settings. The structure and frequency of these signals vary depending on the context and the expected outcome the individual wants to gain, indicating that the have behavioral flexibility.
Social structure The Bonnet macaque species live in multi-male, multi-female social groups with a structured dominance hierarchy. Females of the group typically remain in their natal groups throughout their lives whereas males disperse when the reach sexual maturity. Differences in dominance related behaviors are linked to personality variation such as individuals with higher sociability tend to participate more often in play and connectional contact with other individuals. The bonnet macaque are very social animals and they communicate in a different range of facial expressions. The bonnet macaque, like other macaques, shares a linear dominance hierarchy; the alpha male is the most dominant male of the troop, followed by a beta male and a gamma male, and so on according to their dominance. Similarly, females also follow this linear hierarchy. The male and female hierarchies are different and of a non-overlapping or non-mixing types. Males are usually dominant over females. In their social groups females tend to stay in the same group they were born in, whereas males tend to disperse. Different males may employ various means to rise in rank. Coalition formation between unrelated males to oust a more dominant male has been observed. Males often move from troop to troop to gain a higher rank with the resulting benefits. However, males remaining in a single troop have been observed to rise to become dominant male of that troop. An important note is male bonnet macaques are generally far more laid back and carefree in their social lives than many other macaque species. Competition among male bonnet macaques is much more subdued and there is a much higher emphasis on pacifism. Male bonnet macaques groom each other, hug each other, sleep near each other, play together and engage in male-male mounting as a social defuser. While assertive males may take measures to monopolize matings, they cannot control females and these females will mate promiscuously, as macaques do. Some mysterious environmental pressures must have driven the bonnet macaque to form an unusually egalitarian social structure. Why this trend crops up convergently in separate macaque species rather than being an ancestral macaque trait is an enigma. A possible driving force may be these pacifist species inhabit more fertile habitats with more abundant food. Bonnet macaques are also strong swimmers.
Feeding and diet The bonnet macaques have been known to be omnivores. They have been regularly seen to be eating fruits, seeds, nuts, flowers, along with some
invertebrates such as crickets, grasshoppers, termites, insect larva/eggs, and spiders. When eating food from the ground, the bonnets will rub the food between their palms before often stuffing their cheek pouches with food.
Reproduction Bonnet macaques attain reproductive maturity when they are three to four years old. The majority of births take place from February to April, before the arrival of the
monsoon. The
gestation period lasts 24 weeks and a single infant is the normal result of a pregnancy. Infant survival among the Bonnet macaque is closely related to maternal care and social conditions within the group of species. First-time mothers typically have a lower infant survival rate when compared to experienced mothers. This is due to the distribution of energy which influences offspring survival rates. Mothers must learn to balance energy between current offspring and future reproduction, especially since younger mothers are still growing themselves. A higher investment of energy can improve infant survival but consequently reduce future reproduction success. When it comes to the sex of the infant Bonnet macaque, female infants typically receive more consistent maternal care wheres male infants show higher mortality rates because of their need for more resources and maternal care that some mothers are unable to provide. ==References==