Mexico restores bison to desert ecosystem after 200 years
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In Mexico’s Chihuahua Desert, authorities reintroduced 48 bison to the Cuatrociénegas biosphere reserve after a 200-year absence.
The Fundación Pro Cuatrociénegas transported the bison from other areas of Mexico last year, hoping to restore the area’s arid grasslands. Bison once thrived in this region, acting as vital ecosystem anchors by dispersing seeds, fertilizing soil with their dung, and creating varied landscapes through their natural behaviors.
The reintroduction aims to replicate the positive effects bison have on grasslands, as seen in places like North America’s Great Plains and even in Europe. Their weight and movements help water and seeds penetrate the soil, increasing plant growth and water retention. However, officials acknowledge the bison could create challenges for local cattle ranchers.
Currently, the bison are contained within a 10,000-acre area because the region lacks the natural predators, like the now-rare Mexican wolf, that once kept their population in check. Fundación Pro Cuatrociénegas is looking to programs in the United States and Canada for models of sustainable bison management, hoping to create economic benefits for nearby communities.
