A direct driver is a driver that unequivocally influences
ecosystem processes and can therefore be identified and measured to differing
degrees of accuracy. [Important direct drivers include
habitat change,
climate change, invasive alien species,
overexploitation, and pollution.]
An indirect driver is a driver that operates by altering the
level or rate of change of one or more direct drivers. [Important indirect
drivers include changes in population, economic activity, and technology, as
well as socio-political and cultural factors.]
