January 9, 2013
Brett Smith for redOrbit.com Your Universe Online
Networking might be the key to moving along in your career path, but its also a great way to meet that special someone and its a skill that just might be inherited.
Thats the conclusion of researchers who have just completed a new study titled Genetic Origins of Social Networks in Rhesus macaques which was recently published in the journal Nature Scientific Reports.
If you are a more social monkey, then youre going to have greater reproductive success, meaning your babies are more likely to survive their first year, said post-doctoral research fellow Lauren Brent, who led the study. Natural selection appears to be favoring pro-social behavior.
This is really a landmark paper, said James Fowler, a professor of medical genetics and political science at the University of California-San Diego who studies human social networks but was not part of the study. Theyre showing that the positive behaviors which build social networks might be heritable, and thats consistent with what weve been seeing in human studies.
In the study, researchers spent two years observing the social interactions of a group of free-ranging monkeys as well as analyzing their family trees. These macaques are the descendents of a group of monkeys released in 1938 from India on the undeveloped 38-acre Cayo Santiago Island off the eastern coast of Puerto Rico.
After learning to identify each of the almost 90 monkeys on sight, field researchers recorded social interactions between individuals in 10-minute periods, recording some four to five hours of behavioral data per primate.
Based on the observational data, the team constructed a network of interactions to analyze pro-social and anti-social behavior. They also used a metric that they called betweenness or the shortest paths between individuals and eigenvector, a friends-of-friends measure that showed degrees of separation among a group of friends.
The really popular monkeys would have a high eigenvector, or a really big friends-of-friends network, Brent explained.
Original post:
Social Networking May Be An Inherited Skill Say Duke Researchers