explain how to carry out a field investigation into the distribution and abundance of organisms in a habitat and how to determine their numbers in a given area
sampling techniques (random and transects, capture-recapture), use of quadrats, pooters, nets, keys and scaling up methods
describe both positive and negative human interactions within ecosystems and explain their impact on biodiversity
the conservation of individual species and selected habitats and threats from land use and hunting
explain some of the benefits and challenges of maintaining local and global biodiversity
the difficulty in gaining agreements for and the monitoring of conservation schemes along with the benefits of ecotourism
evaluate the evidence for the impact of environmental changes on the distribution of organisms, with reference to water and atmospheric gases