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His philosophy of conservation was never elitist or exclusionary. He believed that the survival of the African elephant was inextricably linked to the prosperity of the local communities that shared their land. He championed “respectful stewardship,” arguing that education and empathy were more powerful deterrents to poaching than any fence or firearm. To Douglas-Hamilton, every person living near a wildlife reserve was a potential guardian, and he spent as much time in village meetings as he did in the field. He possessed a rare ability to translate high-level science into a universal language of moral responsibility, inspiring generations of young conservationists to pick up the mantle of his work.
Statistically, the impact of his work is staggering. When Douglas-Hamilton began his research in Lake Manyara in the 1960s, little was known about the territorial requirements of a healthy herd. Today, thanks to the tracking programs he established, we know that an elephant population might require an area of over $10,000\text{ km}^2$ to thrive. His research into “acoustic communication” also opened a new frontier in biology, suggesting that elephants use infrasonic calls—sounds below the frequency of human hearing—to communicate across distances of up to $10\text{ km}$. These scientific milestones provided the world with a sense of wonder that catalyzed funding and political support for conservation efforts.
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