I wonder what they say when I cut their cousins down with my weed wacker?
on June 25th, 2007 at 1:55 am(nationalgeographic.com) Plants have family values, too, it seems, with new research suggesting they can recognize close relatives in order to work together.
An ability to tell family from strangers is well known in animals, allowing them to cooperate and share resources, but plants may possess similar social skills, scientists believe.
Susan Dudley and Amanda File of McMaster University in Ontario, Canada, report they have demonstrated for the first time that plants can recognize their kin.
This suggests that plants, though lacking cognition and memory, are capable of complex social interactions.
“Plants have this kind of hidden but complicated social life,” Dudley said.
The study found plants from the same species of beach-dwelling wildflower grew aggressively alongside unrelated neighbors but were less competitive when they shared soil with their siblings.
Sea rocket, a North American species, showed more vigorous root growth when planted in pots with strangers than when raised with relatives from the same maternal family, the study found.
This is an example of kin selection, a behavior common in animals in which closely related individuals take a group approach to succeeding in their environment, the researchers said. (more…)
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