Mitchell Center Researcher Sarah Nelson Speaks 海角社区 Sentinel Species
Researcher Sarah Nelson was interviewed recently by the Portland Press Herald about her work with dragonfly larvae, just one of the 鈥渟entinel species鈥 that can provide early indicators to scientists about potentially harmful environmental conditions.聽 Nelson鈥檚 work focuses on food web mercury levels in Acadia National Park and in 25 other national parks across the nation.