Sentinel species in Maine
Ocean scientists, ecologists and biologists are studying a wide range of Ã¢ÂÂsentinel speciesÃ¢ÂÂ in Maine. These plants and animals offer clues to climate change, pollution, toxic contamination and changes in whole ecosystems. Some of the species are surrogates, or proxies, for other populations, including humans. They can disclose key elements in addressing environmental problems and help gauge whether corrective measures are working or need to be intensified. Below are some of the scores of sentinel species being studied in Maine.