China's Sinkholes Shield Rare Magnolia Trees but Risk Their Long-Term Survival

In China, large sinkholes serve as natural refuges for the endangered Magnolia aromatica, offering stable microclimates that protect the trees from climate change pressures. These underground environments help sustain isolated populations of the rare species. However, the same isolation that shields the trees also restricts genetic exchange between populations, potentially reducing their adaptability to future environmental shifts. Scientists warn that limited genetic diversity could undermine the long-term survival of the species. Conservation strategies must therefore balance habitat protection with measures that promote gene flow across separate Magnolia aromatica populations.