Nothofagus has been regarded as a key genus in Southern Hemisphere biogeography. From an examination of its ecology, distribution and evolutionary history, explain why the genus should have been given such status and consider the extent to which it is appropriate. Discuss the role of Torres Strait in the biogeography of Australia. Illustrate your answer with respect to flora and fauna. The floristic and structural diversity of tropical rainforest varies greatly over space and time.
Nutrient cycling is a major bridgehead between vegetation dynamics and soil processes .
Comment on this statement with the aid of examples. Examine the role of the maritime continent in shaping the character of the Austro-Asiatic monsoon circulation. With aid of appropriate diagrams, indicate the sequence of development of a mid-latitude Northern Hemisphere depression and the weather associated with the different stages of development. Briefly outline the fundamental differences that occur in mid-latitude depressions in the Southern Hemisphere. Examine the fundamental processes of tropical cyclogenesis.