Agricultural impacts (Other Keyword)

DOCUMENT Citation Only Mark Bush.

A shifted baseline is the intergenerational acceptance of the progressive degradation of a system as reflecting its natural state. Paleoecological analyses have revealed the long-term usage by humans of sites previously thought to be ‘pristine’. Analysis of lake sediments in remote areas of Panama and Ecuador revealed unexpected histories of land usage. In Ecuador, Lake Ayauch provided a record of maize agriculture from 6000 years BP. At Lake Wodehouse, in Panama, a 3300-year long record from an...