Succession occurs in natural ecosystems. Describe and explain how succession occurs.

Use Figure 1 to calculate the percentage of sunlight energy that would be transferred into the faeces and urine of a zebra. Give your answer to 3 significant figures.

Answer ______________ %

In this ecosystem the net productivity of the vegetation is 24 525 kJ m−2 year−1

Use this information and Figure 1 to calculate the energy stored in new tissues of the zebra in kJ m−2 year−1

Answer ______________ kJ m–2 year–1