GGR377H5 : GGR377 questions 2.docx
Document Summary
Definition forest ecosystems food security water & marine ecosystems human population: resilience, the ability of a system to deal with change and continue to develop. Use the example of usa and canada to explain the long term migration of species as a result of change in climate conditions. How could be the migration of species at end of this century. Explain the negative and positive feedback of forest ecosystems and illustrate how the forest biodiversity could still be affected even with low human impact such as logging. Deforestation open space for new species to grow. More incoming radiation stimulates the grow of new species in the forest ecosystems increasing co2 may also have negative feedback and improve tree growth. Change in the forest can also affect the rainfall distribution and climate of the local region. Reduced food security: what are the distinction between c3 and c4 crops and how these crops may react at doubling.
