EcologybioRxiv
Rapid and continuing regional decline of butterflies in eastern Denmark 1993-2019
Emil Blicher Bjerregård, Lars Baastrup-Spohr, Bo Markussen, Hans Henrik Bruun
The paper tracks butterfly population declines in eastern Denmark from 1993-2019, finding significant regional extinctions and continued declines despite protected areas.
DOI 10.1016/j.biocon.2023.110208