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4 marksEcosystem Dynamics and Community Stability

CAPE Environmental Science Unit 1 · 2015 · Paper 2 · Question 2(c)

Table 2 shows the results of a mark-recapture study conducted to estimate the population size of manatees.

Use the information provided in Table 2 to calculate the population size of the manatees.

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Other parts of this question

  1. 2(a)Outline the role of natural selection in the evolution of a species.[3 marks]
  2. 2(b)(i)State FOUR deductions that can be made from the information provided in Table 1.[4 marks]
  3. 2(b)(ii)State which of the three environments is expected to have the GREATEST species diversity AND give ONE reason to support your answer.[3 marks]
  4. 2(b)(iii)Explain, using six points, how species diversity influences ecosystem stability.[6 marks]

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