quiz review. productivity of ecosystems gpp = npp + respiration if producers use 3.4g c/m2/yr and...
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Quiz Review
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Productivity of Ecosystems
• GPP = NPP + Respiration• If producers use 3.4g C/m2/yr and the gross
primary productivity is 5.0 g C/m2/yr what is the NPP?
• 5.0 = x + 3.4• X=1.6
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What are the products of cellular respiration?What are the products of photosynthesis?
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• Does photosynthesis use or produce carbon dioxide?
• Does cellular respiration use or produce carbon dioxide?
• HINT! LOOK AT SLIDES BEFORE!
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What is another name for producers?
A : ?
Q :What is another name for Consumers?A: Heterotrophs
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What is percolation? What is infiltration?
What is transpiration? What is leaching?
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What are two limiting nutrients?
• Nitrogen and Phosphorus
• An excess of these cause? E_____________• remember fertilizer runoff, algal blooms,
hypoxic environments
• What other cycle/abiotic factor carries these nutrients?
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What percent of E is Reflected? Absorbed?
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Carbon Cycle
• What are four anthropogenic effects on the the atmospheric carbon reservoir?
-Transportation-Deforestation-Forest fires-Burning fossil fuelsDo these activities increase or decrease atmospheric carbon?
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Forms of Nitrogen
Nitrite: NO2 -
Nitrate: NO3 - ----Memory trick : I ate three nitrateAmmonium: NH4----- Memory trick : um its 4+Ammonia: NH3
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FixNAAD ANPAN Process ProductFix-nitrogen fixation AmmoniaNitrification NitratesAssimiliation ProteinsAmmonification AmmoniaDenitrification Nitrogen
Nitrogen Fixation Assimiliation Ammoniification Nitrification Denitrification
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Phosphorus, Calcium, Magnesium, Potassium
• Do not exist as gaseous forms
• Phosphorus is usually found in rocks, soils
• Phosphorous can cause eutrophication
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Instrumental Values of Ecosystems
Provisions- Goods that humans can use directly.
Regulating services- The service provided by natural systems that helps regulate environmental conditions.
Support systems- The support services that natural ecosystems provide such as pollination, natural filters and pest control.
Resilience- Resilience of an ecosystem ensures that it will continue to provide benefits to humans. This greatly depends on species diversity.
Cultural services- Ecosystems provide cultural or aesthetic benefits to many people.
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Resistance versus Resilience
Resistance- A measure of how much a disturbance can affect its flows of energy and matter.
Resilience- The rate at which an ecosystem returns to its original state after a disturbance.
Restoration ecology- A new scientific discipline that is interested in restoring damaged ecosystems.
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Temperature
Mesopause
Stratopause
Tropopause
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Temperature
Mesopause
Stratopause
Temperature
Mesopause
Stratopause
Temperature
increasing
decreasingincreasing decreasing
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Earth's Rotation and the Coriolis Effect
• Causes Prevailing Winds and Gyre Formation• Gyres- the large-scale patterns of
water circulation. The ocean surface currents rotate in a clockwise direction in the Northern Hemisphere and a counterclockwise direction in the Southern Hemisphere.
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Five Major Gyres
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Where is the windward side?Does it receive rain?
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APHOTIC
PHOTIC