10 point each. You discover two previously undescribed species of iguana, which you name the Banana Iguana and the Havana Iguana, on a large tropical island. Both have similar diets of fruit and leaves, and you suspect that they compete with each other. Design an exclosure experiment to test the hypothesis that they compete. Include two appropriate control treatments as well as experimental treatments and explain what the controls are controlling for.
Predation can either increase or decrease species diversity in a community.
Clearly explain how it can decrease species diversity and provide real or hypothetical evidence that it has this effect. Now clearly explain how it can increase species diversity and describe how to experimentally test whether a particular predator in a community is causing an increase in species diversity. Clearly write the equation for the logistic growth formula that can result in a population that undergoes stable limit cycles. Explain what is meant by the fundamental niche of a species and what is meant by the realized niche. Explain how it is possible for this reversal of the usual pattern to be present.