Different blossoming schedules have kept these flowers from driving each other extinct
A big part of evolution is competition-- when there are limited resources to go around, plants and animals have to duke it out for nutrients, mates, and places to live. That means that the flower-covered meadows of China’s Hengduan mountains were an evolutionary mystery-- there are dozens of species of closely-related rhododendrons that all live in harmony. To figure out why, scientists spent a summer carefully documenting the flowering patterns of 34 Rhododendron species, and they discovered the reason why the plants were able to coexist: they burst into bloom at different points in the season so they don’t have to compete for pollinators. “There’s this basic idea in ecology of the niche, that a species’ lifestyle, like what it eats and how it fits into the environment, cannot be repl...
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