Possible book of interest

free online books, not just articles. Many of these books are fairly new and updated. Google Books is now a regular site for me to visit. Information overload is now in overdrive.... So much to read now, I am almost to the point rejecting all scientific reading for a simpler life.

I have recently attended a lecture on "Invasive Plants". The lecture tended to be on the "tens Rule". Also mentioned that studies were done that many of the invasive plants comes from the sale of seeds for livestock that are sold around the world. Seed sacks that might be 99.9 percent pure, that little extra 0.1 percent can have as more that 150 weeds seeds that can be invasive. Also mentioned that not all non native plants are harmful. Many non native plants can be beneficial to humans.

Quote taken from the site:

"The good news comes in the form of the ³tens rule², put forth by Mark Williamson and Allistair Fitter in 1996. According to the ³tens rule², 1 in 10 imported plants will eventually be found in the wild; of these 1 in 10 will establish a self-sustaining population; of these, 1 in 10 will become a pest or invasive. So for every 1,000 imported plant species, 100 may escape into the wild, 10 may establish themselves there , but only 1 will become a pest. Of course, there are always exceptions."