Exam 55: Ecosystems and Restoration Ecology

Use the following figure to answer the question. Consider the global nitrogen cycle depicted in the figure. What is the limiting portion of the cycle for plants?

Use the following figure to answer the question. Which habitat type in the figure makes available the most new tissue to consumers?

Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?

Use the following figure to answer the question. Food web for a particular terrestrial ecosystem (arrows represent energy flow and letters represent species) Examine this food web for a particular terrestrial ecosystem. Which pair of species could be omnivores?

Which of the following is an accurate statement regarding mineral nutrients in soils and their implication for primary productivity?

Which of the following locations are major reservoirs for carbon in the carbon cycle?

Owls eat rats, mice, shrews, and small birds. Assume that, over a period of time, an owl consumes 5,000 J of animal material. The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. What is the production efficiency of this owl?

Use the following figure to answer the question. Consider the global nitrogen cycle depicted in the figure. How are humans altering this cycle?

Why is terrestrial productivity higher in equatorial climates?

Use the following figure to answer the question. After looking at the experiment in the figure, what can be concluded about productivity in marine ecosystems?

Use the following figure to answer the question. After looking at the results in the figure, what can be concluded about productivity in the experimental ecosystem?

What advantage would there be for an ecosystem ecologist to measure net ecosystem production (NEP) instead of net primary production (NPP)?

Which of the following has the greatest effect on the rate of chemical cycling in an ecosystem?

Which of the following organisms is incorrectly paired with its trophic level?

Many of the organisms in the ocean are nutrient-limited. If you wanted to investigate this phenomenon, one reasonable approach would be to ________.

Which of the following statements is correct about biogeochemical cycling?

Nitrifying bacteria participate in the nitrogen cycle mainly by

How is net ecosystem production (NEP) typically estimated in ecosystems?

Suppose you are studying the nitrogen cycling between vegetation, sediments, and water in a pond ecosystem over the course of a month. While you are collecting data, a flock of 100 Canada geese lands and spends the night during a fall migration. What could you do to eliminate error in your study as a result of this event?

Why does a vegetarian leave a smaller ecological footprint than an omnivore?