"Temperature, rainfall, soil composition, and sunlight may not be the only contributors to a plant's success. Ants, in their role as seed dispersers, may play an equally important part in determining whether a plant species thrives or fails.
In the October 28, 2013 online issue of Global Change Biology, Robert Warren, assistant professor of biology at SUNY Buffalo State, and co-author Mark A. Bradford, assistant professor in the Yale School of Forestry, investigate how the presence of cold- or warm-adapted ants impacts early-blooming spring plants. In "Mutualism fails when climate response differs between interacting species," the authors assert, "Timing is everything when species interact." - October 28, 2013, Science Daily, http://www.sciencedaily.com/releases/2013/10/131028090246.htm