“To know Tom was to know an extraordinary scientist, professor, advisor, and unyielding champion for our planet,” said Jill Tiefenthaler, the Society's CEO, in a statement. “He was also a consummate connector, helping bring people and organizations together to preserve and protect some of our most fragile ecosystems and cornerstone species.”

In 1980, he also published the first estimate of global extinction rates, correctly projecting that by the early 21st century a huge number of species would be lost forever. Lovejoy, who held a Ph.D. in biology from Yale University, advised three administrations, the United Nations Foundation, the World Bank, and other organizations on how to protect species and advance the field of conservation biology. Since 2010, Lovejoy served