Robert H. MacArthur (ecologist)

Robert H. MacArthur was an influential American ecologist known for his work on how species compete and coexist in ecosystems. He helped develop the theory that different species can share resources by occupying slightly different roles or "niches," reducing direct competition. His research contributed to understanding the balance of biodiversity and how species adapt to their environments. MacArthur's insights are fundamental in ecology, illustrating how diversity is maintained and how ecosystems function through complex interactions among organisms.