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TROPHIC CASCADE
In 1950, livestock viruses drove the Serengeti's wildebeest herd down to 300,000. Less than a decade later, it surpassed 1.5 million, helping turn the ecosystem into a carbon sinkIn the 1950s, rinderpest and livestock disease pushed the Serengeti’s wildebeest herd to dangerously low numbers. After the virus was broug...- Mountain lions left this suburb a century ago; one returned to Stanford's preserve in 2015, and woody plants grew 64-fold in just 11 yearsA Stanford study reveals that even a single visiting mountain lion can dramatically reshape ecosystems in small preserves. Researchers obse...
- Blue crabs were first found in Italy's Adriatic in 1949; 74 years later, they exploded, cut clam output 90%, and pushed 160 km up the Po RiverAmerican blue crabs, famed for their presence in coastal cuisine, are now making an alarming, unprecedented journey deep into Italy's Po Ri...
- In 1995, 14 wolves were reintroduced to Yellowstone to heal a damaged ecosystem; decades later, researchers are challenging one of the most celebrated predator stories in American ecologyYellowstone's wolf reintroduction success story faces a scientific challenge. New analysis suggests the dramatic impact on willow growth wa...
- The Wolves That Changed a River: What Yellowstone Taught ScientistsYellowstone's ecosystem is showing remarkable recovery following the reintroduction of gray wolves in 1995. Their presence has reshaped elk...
- Not All Species Are Declining: Turtles and Tigers Are Beating the OddsNature is showing signs of recovery in protected areas. Sea turtles are returning to nesting beaches, and tiger populations are increasing ...
- 'Vampire' plants can have positive impact on food chainParasitic 'vampire' plants that attach onto and derive nutrients from another living plant could benefit the abundance and diversity of sur...
- Loss of large predators damaging ecosystemsThe decline of large predators such as lions, wolves and bears is threatening the Earth’s delicate ecosystems, changing the face of landsca...
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