While for males there is only one social life consisted of “doing nothing, just mate and die”, for females there are “three social endpoints” said Smith, a former graduate student at the University of Illinois and postdoctoral researcher at Arizona State University. Females can be destined to become queen, major or minor workers. Gynes, as the queen ant is also called, is always the biggest one in the whole ant colony. Scientist were working with eight different ant colonies and testing about 1,200 ants. Except investigating the role of nutrition in determining social status, they also found out that offspring of some fathers were more likely to become gynes than descendants of other males. Biologists were also analyzing the diet of ants when they are in a stage of becoming adults from larvae. The results showed that those ants which had eaten a more carnivorous diet had higher nitrogen content and so they were eating higher on the food chain than major and minor workers. Even though the results are pointing at importance of both nature and nurture, there still some questions remain. One of them is how exactly these two factors work – is it a nature or nurture what can influence social status more, or is it a combination of both factors what determines if the ant is going to be a queen or worker?
related story: http://news.yahoo.com/s/livescience/20080819/sc_livescience/keystoantsocialstatusfound;_ylt=AlNIVeFRtuMdYXsuQyATW4ms0NUE
by Barbora Misakova for PocketNews (http://pocketnews.tv) |
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posted by Lucia Adamova
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