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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:

In community A 99% of its insects are species 1 and 1% are species 2.  In community B 50% of its insects are species 1 and 50% are species 2.  With regard to insects: I.          Community B has more species richness than Community A II.         Community A and B have identical species richness III.        Community B has more species diversity than Community A IV.        Community A and B have identical species diversity

In succession, the ability of one species to make the area more suitable for another species is called

Consider a compartmental model for a SARS-COV-2 (COVID19) virus, with susceptible, infected, and immune categories. Match each of the following with one of the three categories: A person who was vaccinated against the COVID 2 years ago (vaccine effective for 1 year) [choice3] A person who has recovered from the COVID recently [choice4] A person who has been vaccinated for the COVID a month ago [choice5]