M2Q2: Biodiversity

Refer to the graph presented below and answer the questions that follow:


  1. Define the concept of species’ richness and species’ evenness.
    Species richness is a count of number of different species in a given area. The more species found in an area, the richer it is.
    Species evenness is the relative number of individuals among the taxa (proportion)

  2. Explain the shape of the graph.
    This is a type B graph that says species richness increases with increasing number of individuals encountered. The first species encountered is most likely to be a common one. Then the occurrence of meeting the rare one increases as time progress.

  3. How might an ecosystem with a higher species diversity look like compared to the graph shown above?