Handful of Speices Key to Ecosystem Health, Study Finds

While conducting field research in the humid salt marshes of Sapelo Island, scientists Marc Hensel and Brian Silliman made an astonishing discovery: species type, not just quantity, is vital for maintaining healthy ecosystems. For decades, scientists believed that preserving the largest number of species was critical for ecosystem function, regardless of their genetic makeup. However, Hensel, a PhD student at the University of Massachusetts at Boston, and Silliman, Rachel Carson Associate Professor at Duke University, counter the old dogma in an article recently published in Proceedings of the National Academy of Sciences.
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