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The amount of CO2 in the atmosphere is stable over a period of one year.

Most evapotranspiration occurs from the sea.

Which graph correctly depicts the Intermediate Disturbance Hypothesis?a) Linear increase in diversity with disturbance frequencyb) U-shaped curve with lowest diversity at moderate disturbancec) Hump-shaped curve with peak diversity at moderate disturbanced) Exponential decline in diversity with increased disturbance

Using a site in Northern California, you repeat Stiling and Drake’s experiments in elevated and ambient CO2 chambers, and achieve similar results. However, you notice that for one species of herbivore, the mortality rate from predators and parasitoids is equal in the elevated and ambient chambers, while the mortality rate due to nutritional inadequacy is higher in elevated chambers. The herbivore species in question is native to Asia and has only recently arrived in the United States. What is a likely explanation for your findings?

Using the principle of island biogeography to predict the number of species you will find at various prairie preserves, which preserve would you predict to have the greatest species richness?

An indicator species

In the island biogeography model, species richness is a balance between

This question is to ensure that you are in the room taking the quiz. If you are not in the classroom or at an approved testing location (such as the DRC), close this quiz immediately and contact your instructor (deenaw@umn.edu).  What is the secret code?  

A key exception to the Species-Productivity Hypothesis is:

After a volcanic eruption, the colonization of the area that was covered by the lava from the eruption is best described as: