Background Print . Topic 3 (B) The Nisbet and Gurney model x' = rxe(1-x/K) - dx. For your assigned model / topic, write up a report which includes 1. A justification of the model and description of the behaviour of the pop- ulation without harvesting. 2. A justification for the mathematical models used for the constant yield and constant effort harvesting strategies. 3. A discussion of how changing the harvest rates change the population and the yield for harvesting models. 4. A discussion / comparison of the maximum yield from the two strategies 5. Include bifurcation diagrams and some population curves (solutions of the initial value problem) as illustrations