After centuries of exploitation for their fur, flesh and secretions, Eurasian beavers (Castor fiber) were extinct over much of their range, with only a few relic populations totaling about 1200 individuals by the start of the 20th Century. In Britain, they were extinct by the 16th Century. On mainland Europe, recognition of the ecosystem services beavers provide led to many countries adopting reintroduction programmes: for example, from 1922 in Sweden; 1966 in Bavaria; 1988 in Romania. Thompson et al. (2021) have evaluated the costs (to landowners) and very substantial ecosystem services provided by beaver presence, mainly in habitat and biodiversity enhancement, and in greenhouse gas sequestration. Leer más.