The scientists found, within the smoke-stimulated plants, that a variety of factors trigger germination. In some species, exposure to smoke alone was enough to cause a seed to germinate. In others, a combination of factors was necessary for germination to take place. Keeley and Fotheringham conclude that the different responses triggered among plants may suggest fire behavior has an important ecological impact on postfire communities by influencing which plants will prosper and reclaim the land. October's issue of Ecology also highlights the effects of large mammals on soil nutrient movements.
River otters deposit urine and feces at specific sites along the coast, known as latrines.
The researchers found that plants at latrine sites had larger concentrations of Nitrogen than those off site. They also discovered that the concentration of Nitrogen in plants located in latrines matched the concentration of fish in the otters' diet. Through ESA reports, journals, membership research, and expert testimony to Congress, ESA seeks to promote the responsible application of ecological data and principles to the solution of environmental problems.