Lecture 2 Flashcards by Justin Tirrell

Q

What is the law of conservation of mass?

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Q

The amount of nutrients on the earth and in the atmosphere …

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Q

Nutrients are constantly…. at the …. and within….

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Q

What processes do nutrients undergo?

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Q

What questions do Ecologists who stduy nutrient cycling ask?

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Q

What are nutrients?

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Q

Name some important nutrients

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Q

Where do required nutrients originate from?

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Q

where do autotrophs secure nutrients from?

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Q

how do Heterotrophs get nutrients?

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Q

Whats a mineral source?

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Q

How are minerals relesed from mineral sources?

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Q

What is an atmospheric source?

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Q

What is the ultimate source for carbon and nitrogen in ecosystems?

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Q

What two processes does nutrient cycling involve?

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Q

Define nutrient sink

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Q

What is an example of a nutrient sink

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Q

Define nutrient source

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Q

What is an example of a nutrient source?

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Q

what kinds of things can be a compartment for cycling carbon?

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Q

Explain the experiment that we examined for nutrient cycling in class

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Q

What does nutrient accounting tel you?

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Q

What does nutrient cycling tell you?

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Q

What does knowing nutrient cycle conrols tell you?

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What indicates physiological needs?

Name the outputs of the atmospheric CO₂ in the carbon cycle.

Explain how fossil fuels are formed.

How do we know atmospheric carbon dioxide concentrations are increasing?

Where is most carbon located?

Where is most Nitrogen located?

Where is the largest actively cycled pool of Nitrogen in the biosphere?

name something that puts a lot of nitrogen in the atmosphere

How does nitrogen cycle between the atmosphere and the land?

How much nitrogen is in proteins?

Why can't organisms use atmospheric nitrogen?

What two sorces typically fixed nitrogen into NH₃?

Give some examples of nitrogen fixing bacteria.

What is in biological crusts?

what was the historical coverage of Biological Crusts on the Colorado Plateau?

What's another name for a biological crust?

What fixes nitrogen in biological crusts?

What are the positive effects of biological crusts?

What do crusts enhance in plants?

biological crusts may be lowering hte survival of what kind of plants?

What is notable about the resistance of bilogical crusts?

What does Ammonia turn into?

What does nitrite turn into?

What does Nitrate turn into?

How is Nitrite denitrified?

What turns Amonia and Nitrite into atmospheric N₂?

What does organic nitrogen turn into?

What mutualist provides plants with N directly?

What must non-fungal organisms first do to nitrogen before it becomes usable?

What turns organic nitroen into inorganic nitrogen?

What is mineralized nitrogen?

What process have we used to artificilly boost nitrogen fixation?

Explain the haber bosck process

how much human tissue contains nitrogen from Haber Bosch?

Spell the disease for blue baby syndrome

What is a negative health consequence of Haber Bosch nitrogen?

Define Eutrophication

What can eutrophication create?

Where is most phosphorous?

Where is the largest pool of Phosphorous?

Where is the most fluctuation in Phosphorous?

What human activitiy increases phosphorous runoff?

How is phosphorous released?

When ddoes chemical weathering occur?

When is phosphorous the most usable?

What plays a key role iin phosphoous uptake by plants?

Where does most Phosphorous run off into?

Who produces the most phosphorous in the world?

What are th ecurrent sustainability challenges for global nutrient cycling?

What do fast growing organisms need a lot of? Why do fast growing organisms need so much of this thing?

what may have caused the extinction of the majestic Irish elk?

Why can't we just eat dirt?

What do bones have a lot of?

Why do deer need to eat so much?

What migh deer waste be predicted to be high in? and why?

What are Mormon Crickets looking for?

What are two common mutualistic exchanges of nutrients?

What organism have wider ranges for carbon content?

How can nutrient content of autotrophs affect the growth and reproduction of consumers?

How do Salmon cycle nutrients?

Why do rapidly growing zooplankton have high P?

What do Pocket gophers do to nitrogen?

How do bison react to pocket gopher holes?

What is the effect of grazing bison?

What is Myrica?

What is special about Myrica?

where do plants that grow in nutrient poor regions invest their energy?

What is the leaf litter like fo plants in nutrient poor regions?

Where do plants that live in nutrient rich regions invest their resources?

What was the example that we used in class for succession?

When Muir Glacier retreated, what kind of experiment was being performed?

A natural experiment

Are patterns of community change obver time predictable?