Day 6
AT HOME
Reading Assignment:
Read pages 95-98 and answer the following questions:
Read pages 95-98 and answer the following questions:
- Explain the link between sustainable yield and productivity.
- Complete To Do on page 96
No Video!!!!
IN CLASS
Measuring GSP and NSP in an Ecosystem
The following table shows the results of an experiment aimed at determining GSP, NSP and R of the Cabbage White Caterpillar (Pieris brassicae)
The following table shows the results of an experiment aimed at determining GSP, NSP and R of the Cabbage White Caterpillar (Pieris brassicae)
It has been estimated that about 25% of the fresh body mass of the caterpillars is dry mass (biomass). At the beginning of this experiment 20 g of fresh cabbage leaves were placed in the cage containing the caterpillars. After 5 days only 5.0 g of cabbage leaves were left over and 2.0 g of faeces were collected. It has been estimated that 40% of the cabbage leaves are dry mass and 80% of faeces are dry mass.
- Calculate the NSP, GSP and R showing one example of your work for each type of calculation you do.
- Evaluate this method (e.g. remark the strengths, weaknesses and limitations of this method, state under what circumstances this method can give reliable estimates and what circumstances can make estimations not so reliable).
- Present this data using a flow diagram.