Sylvain Gérard

The paper resurveys earthworm communities in Finland to assess changes in diversity and abundance over 10 years, finding a decline in abundance and shifts in species composition linked to climate change and land use.

This study maps research on life-history traits of native and introduced earthworms, finding that introduced species are more studied and research focuses on a few model species and specific environmental factors.

The paper estimates the global number of earthworm species using the Joppa model, suggesting around 30,000 species with current descriptions representing only 20%.