Ecological footprint

• A measure of how much biologically productive land and water an individual, population or activity requires to produce all the resources it consumes and to absorb the waste it generates using, prevailing technology and resource management practices.
• Today humanity uses the equivalent of 1.5 planets to provide the resources we use and absorb our waste.

Ecological deficit:

• the difference between the bio-capacity and ecological footprint of a region or country.
• An ecological deficit occurs when the footprint of a population exceeds the biocapacity of the area available to the population.

Ecological reserve

• An ecological reserve exist when the bio-capacity of a region exceeds its population’s footprint.
• Biodiversity buffer/ecosystem buffer: the amount of bio-capacity set aside to maintain representative ecosystem types and viable populations of species (related to resilience of ecosystem)