Wallflower center pack baboons find place

Are you the kind of person who, at a party, tends to be surrounded by friends in the middle of the crowd, or do you prefer to find a quiet corner where you can sit and talk? Recent work by scientists at UC Davis shows that wild baboons behave similarly to humans—with some animals consistently found in the vanguard of their troop while others crowd to the center or lag in the rear.

Using high-resolution GPS tracking, UC Davis Assistant Professor Margaret Crofoot and her team of researchers continuously monitored the movements of nearly an entire baboon troop in central Kenya to discover how interactions among group-mates influenced where in the troop individuals tended to be found.

"How animals position themselves within their social group can have life or death consequences," explained Crofoot, an anthropologist. "Individuals at the front of their group may get the first crack at any food their group encounters, but they are also more vulnerable to being picked off by predators."

Interestingly, the team's work suggests that very simple behavioral rules may explain baboons' apparent preferences for particular spatial positions. "Animals who pay attention to more of their group-mates when deciding where to move will inevitably end up at the center of their group," said Crofoot. Differences in social sensitivity may therefore explain why younger baboons end up in the safest positions at the center of their troop, while adult males find themselves exposed on the leading edge.

Researchers have long noted that spatial positioning has important fitness implications, but where an animal is positioned in its group depends not only on its own behavior, but also on the behavior of its group-mates. "How natural selection shapes such emergent properties is fundamental to understanding the evolutionary dynamics of social organisms," Crofoot said.

Wallflower center pack baboons find place

Are you the kind of person who, at a party, tends to be surrounded by friends in the middle of the crowd, or do you prefer to find a quiet corner where you can sit and talk? Recent work by scientists at UC Davis shows that wild baboons behave similarly to humans—with some animals consistently found in the vanguard of their troop while others crowd to the center or lag in the rear.

Using high-resolution GPS tracking, UC Davis Assistant Professor Margaret Crofoot and her team of researchers continuously monitored the movements of nearly an entire baboon troop in central Kenya to discover how interactions among group-mates influenced where in the troop individuals tended to be found.

"How animals position themselves within their social group can have life or death consequences," explained Crofoot, an anthropologist. "Individuals at the front of their group may get the first crack at any food their group encounters, but they are also more vulnerable to being picked off by predators."

Interestingly, the team's work suggests that very simple behavioral rules may explain baboons' apparent preferences for particular spatial positions. "Animals who pay attention to more of their group-mates when deciding where to move will inevitably end up at the center of their group," said Crofoot. Differences in social sensitivity may therefore explain why younger baboons end up in the safest positions at the center of their troop, while adult males find themselves exposed on the leading edge.

Researchers have long noted that spatial positioning has important fitness implications, but where an animal is positioned in its group depends not only on its own behavior, but also on the behavior of its group-mates. "How natural selection shapes such emergent properties is fundamental to understanding the evolutionary dynamics of social organisms," Crofoot said.

The Baboon Is A Terrestrial And Ground Dwelling Animal

Baboons are medium sized primates found in Africa, and are best known for their bright behinds! The two most common species of baboon in east Africa are the olive baboon and the yellow baboon. The baboon is generally found in more forested areas but is also commonly known to wander the African plains.

Habitat
Baboons are found in surprisingly varied habitats and are extremely adaptable. The major requirements for any habitat seems to be water sources and safe sleeping places in either tall trees or on cliff faces. When water is readily available, baboons drink every day or two, but they can survive for long periods by licking the night dew from their fur.

Behavior
Baboons usually leave their sleeping places around 7 or 8 a.m. After coming down from the cliffs or trees, adults sit in small groups grooming each other while the juveniles play. They then form a cohesive unit that moves off in a column of two or three, walking until they begin feeding. Fanning out, they feed as they move along, often traveling five or six miles a day. They forage for about three hours in the morning, rest during the heat of the day and then forage again in the afternoon before returning to their sleeping places by about 6 p.m. Before retiring, they spend more time in mutual grooming, a key way of forming bonds among individuals as well as keeping the baboons clean and free of external parasites.

Baboons sleep, travel, feed and socialize together in groups of about 50 individuals, consisting of seven to eight males and approximately twice as many females plus their young. These family units of females, juveniles and infants form the stable core of a troop, with a ranking system that elevates certain females as leaders. A troop's home range is well-defined but does not appear to have territorial borders. It often overlaps with the range of other baboons, but the troops seem to avoid meeting one another.

When they begin to mature, males leave their natal troops and move in and out of other troops. Frequent fights break out to determine dominance over access to females or meat. The ranking of these males constantly changes during this period.

Males are accepted into new troops slowly, usually by developing "friendships" with different females around the edge of a troop. They often help to defend a female and her offspring.

For the first month, an infant baboon stays in very close contact with its mother. The mother carries the infant next to her stomach as she travels, holding it with one hand. By the time the young baboon is 5 to 6 weeks old it can ride on her back, hanging on by all four limbs; in a few months it rides jockey style, sitting upright. Between 4 and 6 months the young baboon begins to spend most of its time with other juveniles.

Diet
Baboons are opportunistic omnivores and selective feeders. Grass makes up a large part of their diet, along with berries, seeds, pods, blossoms, leaves, roots, bark and sap from a variety of plants. Baboons also eat insects and small quantities of meat, such as fish, shellfish, hares, birds, vervet monkeys, and small antelopes.

Predators and Threats
The baboon's major predators are humans. Knowing that humans can easily kill or injure them when they are in trees, baboons usually escape through undergrowth. Males may confront other predators like leopards or cheetahs by forming a line and strutting in a threatening manner while baring their large canines and screaming. Baboons are fierce fighters, but a demonstration such as this can put the predator on the run.

The baboon is intelligent and crafty; it can be an agricultural pest, so is often treated as vermin. Trade in baboons as laboratory animals has increased in recent years.