Compiled_Study_Questions_3 - Compiled Study Questions The...

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Compiled Study Questions The following study questions were written by your fellow students, and at least one will appear on the next exam. Keep in mind that these questions focus on just a few topics and do not cover all the material that may appear on the exam. Thus you should not use this as a comprehensive study guide! 1. In several classes a few weeks ago, we talked in depth about morphological innovations and the relationship they have with the diversification of species. Using plants as an example, describe several innovations that allowed them to diversify as land plants from their water-dwelling ancestors. 2. There is a population of trolls that live in a remote mountain on a tropical island. There are 1000 trolls in the population that we know of to this day. They have plenty of resources, and no enemies. Each year there are about 500 deaths and 700 births. Few trolls leave, only about 20 per year, and there are not any trolls that come into the population. Predict how many trolls will be in the next generation. Calculate b, d, and r, and predict if the population will grow or decline. 3. Suppose you are involved with wildlife management in a natural park. Within this park, there is an increasing overabundance of a species of rodent. You propose to control this population with the introduction of a natural predator already present in a different part of the park. Initially, your results look promising – the prey population appears to be falling within levels sustainable by the park’s resources; however the introduction of this predator appears to be having a ripple effect on the ecosystem as a whole. Previously stable levels of one of the park’s endangered plant species, a type of grass, have been falling recently, and you have a suspicion that the introduction of the predator is somehow playing a role; however, neither the rodent nor the predators are known to eat this species. Meanwhile, a particularly hardy species of grass that is a favorite with the rodents has been cropping up increasingly. Come up with one explanation that could explain your findings, and formulate a plan on how this situation could be rectified (remember, conservation of the endangered species is now your first priority). Knowing the outcome of the introduction of this predator, do you see any reason why this might not have been the best strategy for population management? Explain. 4. You have just graduated from college and have joined a research team dedicated to studying the populations
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This note was uploaded on 05/23/2008 for the course BIOL 22 taught by Professor Preston during the Winter '08 term at Santa Clara.

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Compiled_Study_Questions_3 - Compiled Study Questions The...

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