Biodiversity Matters More in Wetter Climates, According to New Research

Strategic Insights -

Researchers from the University of Michigan and the German Center for Integrative Biodiversity Research have found that biodiversity has a more significant impact on ecosystem functioning in wetter climates. The study, which analyzed data from over 100,000 trees belonging to nearly 130 species across 15 experimental sites worldwide, revealed that trees with more diverse neighbors in wetter climates grew more than those in drier climates.

The researchers used a granular approach, characterizing tree diversity by looking at every individual tree and its neighbors, rather than quantifying biodiversity at a broad level. This enabled them to show the pronounced impact of biodiversity in wetter forests and make another interesting finding: while biodiversity appears to matter more in wetter climates, its impact in wetter years in those wetter climates is negligible.

The study's findings have important implications for land managers and conservationists working to protect forests, particularly in wetter regions. The researchers recommend planting diverse trees, especially in wetter areas, as a nature-based climate solution.

Key Takeaways:

  • Biodiversity has a more significant impact on ecosystem functioning in wetter climates.
  • Trees with more diverse neighbors in wetter climates grew more than those in drier climates.
  • The study used a granular approach to characterize tree diversity, examining every individual tree and its neighbors.
  • The researchers found that biodiversity's impact in wetter years in wetter climates is negligible.
  • The study recommends planting diverse trees, especially in wetter areas, as a nature-based climate solution.
  • The researchers used data from over 100,000 trees belonging to nearly 130 species across 15 experimental sites worldwide.
  • The study was funded by international sources, including the U.S. National Science Foundation, German Research Foundation, and University of Chinese Academy of Sciences.
  • Peter Reich, professor of environment and sustainability at the University of Michigan and director of the Institute for Global Change Biology, stressed the importance of accounting for climate when assessing biodiversity.
  • Liting Zheng, study lead author, highlighted the importance of establishing and maintaining high neighborhood diversity in forest management to maximize the potential of biodiversity as a nature-based climate solution in wetter regions.

Statistics:

  • 100,000 trees were analyzed in the study, belonging to nearly 130 species across 15 experimental sites worldwide.
  • The researchers used a granular approach to examine every individual tree and its neighbors.
  • The study was funded by multiple international sources, including the U.S. National Science Foundation, German Research Foundation, and University of Chinese Academy of Sciences.
  • 15 long-term experiments were used in the study, which spanned a range of climates.
  • The researchers characterized tree biodiversity by looking at every individual tree and its neighbors, rather than quantifying biodiversity at a broad level.

Sources:

  • University of Michigan
  • German Center for Integrative Biodiversity Research
  • Nature Ecology & Evolution
  • U.S. National Science Foundation
  • German Research Foundation
  • Sao Paulo Research Foundation
  • University of Chinese Academy of Sciences