Read more:
A team led by researchers at the University of Florida found that keeping large mammals away from acacia trees affected ants as well as the trees.
Read more:
A team led by researchers at the University of Florida found that keeping large mammals away from acacia trees affected ants as well as the trees.
Like to rate videos and let people know what you think?
Automatically share your ratings, favorites, and more on Facebook, Twitter, and Google Reader with YouTube Autoshare.
Autoshare makes certain YouTube activities public on the services you choose. Select only the services you are comfortable with - like Facebook, Twitter, or Google Reader - to let your friends know what you like on YouTube. You can turn Autoshare off at any time.
Like to share videos with friends?
Automatically share your ratings, favorites, and more on Facebook, Twitter, and Google Reader with YouTube Autoshare.
Autoshare makes certain YouTube activities public on the services you choose. Select only the services you are comfortable with - like Facebook, Twitter, or Google Reader - to let your friends know what you like on YouTube. You can turn Autoshare off at any time.
This video has been removed from your Favorites. (Undo)
Like to Favorite videos and let people know what you think?
Automatically share your ratings, favorites, and more on Facebook, Twitter, and Google Reader with YouTube Autoshare.
Autoshare makes certain YouTube activities public on the services you choose. Select only the services you are comfortable with - like Facebook, Twitter, or Google Reader - to let your friends know what you like on YouTube. You can turn Autoshare off at any time.
Why? - By what process did this transition happen ? Why would the lack of large animals give any group of ants an advantage over any other ants ? Are they suggesting that evolution happened? It seems to me that that nothing would change. If anything, the ants that protect the tree would have a bit of holiday while the animals are away. Why would they suffer. Am i missing something?
It's ecology, not evolution. If herbivores are present then they change the competitive balance between the defenders and the parasites. I don't know the case in detail, but I would speculate that the parasites are better at ant-ant competition, while the defenders sacrifice this ability in order to defend the nest from herbivores. If herbivores are present then the defenders have the advantage because the parasites can't fight them off, if they are absent the parasites have the advantage.
Autoshare makes certain YouTube activities public on the services you choose. Select only the services you are comfortable with - like Facebook, Twitter, or Google Reader - to let your friends know what you like on YouTube. You can turn Autoshare off at any time.
"both the tree and helpfull ants suffered"