Source link : https://earth-news.info/general/yellowstone-aspen-thriving-again-years-after-wolves-were-reintroduced/
Yellowstone National Park’s iconic aspen trees are exhibiting encouraging signs of recovery nearly three decades after the reintroduction of wolves in 1995, according to recent research from Oregon State University. The study highlights how the return of the park’s top predator has contributed to a notable resurgence in aspen growth, reversing decades of decline driven largely by overbrowsing from elk populations. These findings underscore the complex and far-reaching ecological impacts of wolf restoration efforts, offering renewed hope for the park’s broader ecosystem health.
Yellowstone Aspen Populations Exhibit Notable Recovery Since Wolf Reintroduction
In the decades following the 1995 wolf reintroduction to Yellowstone National Park, researchers from Oregon State University have documented a remarkable resurgence in aspen populations. The apex predators’ return has indirectly restored the park’s ecosystem balance by curbing elk overgrazing, allowing young aspen shoots to thrive and mature. This trophic cascade effect highlights the wolves’ critical role in promoting biodiversity and habitat complexity within the park’s delicate environment.
Field studies reveal several key indicators of this recovery:
- Increased aspen regeneration: Seedlings and saplings grow taller and are more plentiful compared to pre-wolf eras.
- Reduced browsing pressure: Elk herds have shifted their behavior, reducing the intense pressure on young woody plants.
- Improved habitat…
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Author : earthnews
Publish date : 2025-07-26 22:31:00
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