Evidence item

The study commentary reports about a 25% reduction in genome-wide genetic diversity and progressive twentieth-century heterozygosity decline in the moss carder bumblebee. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 18522

Source: A century of genetic erosion in a British bumblebee – a new study just published · locator {} · excerpt hash sha256:9a85cb973b833ae9dd8baa63a2f7cc51bf83603100c3bf91bd85fb038e7f4ae7

Comparing bees collected before 1926 with those collected after 1975, we found about a 25% reduction in genome-wide genetic diversity. Looking at the full time series gives the same basic message: heterozygosity declined progressively through the 20th century, with no obvious sign of recovery.