To protect ecosystems, Gill says start with largest inhabitants – J. Gill

The extinction of mammoths, ground sloths and other large plant-eaters thousands of years ago triggered shifts in global habitats and changes in ecosystems, says University of Maine paleoecologist Jacquelyn Gill. The assistant professor in the School of Biology and Ecology and the Climate Change Institute says fossils and other records from the deep past provide read more To protect ecosystems, Gill says start with largest inhabitants – J. Gill