Over the past two decades, the Qinghai-Tibet Plateau has witnessed varying degrees of grassland degradation, raising concerns among environmentalists and local communities. While pikas—small mammals native to the region—have often been blamed for this environmental issue, new research suggests otherwise.
Li Li, an assistant professor from the Department of Health and Environmental Sciences at Xi’an Jiaotong-Liverpool University, has challenged the widespread belief that pikas are the primary cause of grassland degradation. According to her findings, the size of the pika population is more an indicator of the degradation rather than its cause.
“Our studies show that pikas are not the culprits behind the deteriorating grasslands,” said Li Li. “In fact, their increasing numbers may reflect underlying ecological issues affecting the plateau.”
She emphasized the need for comprehensive research to uncover the true factors contributing to grassland degradation. “It’s crucial to explore the complex relationship among yaks, pikas, and the grassland ecosystem,” Li Li added. “Understanding these dynamics will help in developing effective conservation strategies.”
The Qinghai-Tibet Plateau, often referred to as the “Roof of the World,” holds significant ecological importance, not just for Asia but globally. The degradation of its grasslands could have far-reaching impacts on biodiversity, water resources, and climate regulation.
Environmental experts suggest that overgrazing by livestock, climate change, and human activities may be more significant contributors to the degradation. Li Li’s call for further studies aims to shift the focus towards a holistic understanding of the plateau’s environmental challenges.
As the debate continues, stakeholders are urged to consider the broader ecological context rather than placing undue blame on a single species. Collaborative research and sustainable practices could pave the way for restoring the health of the Qinghai-Tibet Plateau’s grasslands.
Reference(s):
cgtn.com
