Robert “Bob” Ricklefs, who died on June 7th, a day after his 83rd birthday, helped shape modern ecology through his work on birds, island biogeography, life histories, and biodiversity.His textbooks, Ecology and The Economy of Nature, introduced generations of students to the field with uncommon clarity and breadth.He believed that careful observation and field experience remained essential to science, even as ecology became more model-driven and publication-focused.Colleagues and students remembered him as exacting, generous, independent-minded, and gentle in manner while firm in judgment.
At the mouth of the Carmel River, a teacher set up a spotting scope and let a boy look through it. The birds were the first thing he saw. The habit of looking came next. He saw that the world could be understood, though not quickly, and that its order did not reveal itself to those in a hurry. Later he would say he never recovered from that experience. The remark was light, but also true. A childhood near Monterey, with woods behind the house and the Pacific within walking distance, gave him the subject of his life.
Robert “Bob” Ricklefs, who died on June 7th, a day after his 83rd birthday, spent that life asking how living things came to be where they are, and why they lived as they did. He became one of the most influential ecologists of his generation: an ornithologist, biogeographer, theorist, teacher, author and member of the National Academy of Sciences. His textbooks, Ecology and The Economy of Nature, shaped how thousands of students first encountered the field. Their authority came from clarity. He could take a tangled subject and find a usable path through it.
