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Could conserving tigers in forests be an integral part of climate change solutions?

2025-05-07
(Press-News.org) Forests without top predators (such as tigers) risk being overgrazed by large herbivore prey, depleting vegetation carbon stocks and their capacity to remove carbon dioxide from the atmosphere, an essential ecosystem function for mitigating climate change. Therefore, just as forest protection and restoration can support top predator recovery “bottom-up,” large carnivore conservation likely promotes vegetation recovery “top-down” and represents an understudied component in nature-based solutions to climate change. Research published in Global Change Biology provides new insights into these relationships. 

Investigators found that tiger presence is associated with higher forest vegetation carbon stocks per unit area, as well as overall lower carbon dioxide emissions and higher carbon dioxide removal than tiger-absent forests. Also, forest vegetation or soil carbon stocks increased with tiger density in four forest habitat types studied. 

The findings reveal that tigers are both an indicator and a driver of forest ecosystem carbon stocks, depending on underlying ecological conditions, and could help safeguard against carbon emissions. 

“Our analysis indicates that tiger density can influence forest vegetation carbon stocks by controlling large herbivore prey, but there is important context-dependency and variable outcomes to consider,” said corresponding author Guangshun Jiang, PhD, of Northeast Forestry University, in China. “Rebuilding forest carbon stocks can support tiger population growth, while tiger presence also seems to have a guardian effect to protect forests from deforestation and associated carbon emissions.” 

URL upon publication: https://onlinelibrary.wiley.com/doi/10.1111/gcb.70191

 

Additional Information
NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. For more information or to obtain a PDF of any study, please contact: Sara Henning-Stout, newsroom@wiley.com.

About the Journal
Global Change Biology is an environmental change journal dedicated to shaping the future and solving the world's most challenging problems by tackling sustainability, climate change and environmental protection, food and water safety and provision, as well as global health.

About Wiley      
Wiley is one of the world’s largest publishers and a trusted leader in research and learning. Our industry-leading content, services, platforms, and knowledge networks are tailored to meet the evolving needs of our customers and partners, including researchers, students, instructors, professionals, institutions, and corporations. We empower knowledge-seekers to transform today’s biggest obstacles into tomorrow’s brightest opportunities. For more than two centuries, Wiley has been delivering on its timeless mission to unlock human potential. Visit us at Wiley.com. Follow us on Facebook, X, LinkedIn and Instagram.

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[Press-News.org] Could conserving tigers in forests be an integral part of climate change solutions?