Test questions and terminology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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show | the orderly and predictable sequence of changes that occur over time in a community’s species composition
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show | A series of stages of community change in a successional sequence leading toward a stable state. Entire successional sequence (0-250+)
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Seral Stages | show 🗑
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Pioneer Community | show 🗑
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Climax Community | show 🗑
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Primary Succession | show 🗑
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show | B = Succession in a habitat that has been disturbed, but in which some aspects of the community remain. N = Succession that begins on previously occupied substrate following a disturbance.
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Examples of Environmental Disturbances | show 🗑
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show | Variation of species within a community based on species richness and species evenness.
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show | The number of different species found within some given area. (Measurements are highly dependent on the size of the sampling units)
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Species Evenness | show 🗑
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Allopatric Speciation | show 🗑
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Sympatric Speciation | show 🗑
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Producer | show 🗑
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show | Animals that cannot make their own food. They get their energy from other plants and animals. A food chain can have as many as three to four of these. Heterotrophs.
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Decomposer | show 🗑
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Autotroph | show 🗑
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show | Organisms that get the carbon necessary for life from organic substrates. They cannot synthesize organic carbon-based compounds from inorganic sources in the environment like an autotroph can.
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show | An organism that consumes living plants or their parts.
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show | An animal that consumes primarily the flesh of other animals.
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Omnivore | show 🗑
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Gross Primary Production (GPP) | show 🗑
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Net Primary Production (NPP) | show 🗑
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Water Use Efficiency (Aka. Transpiration Efficiency ) | show 🗑
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show | Energy from the initial amount of food eaten
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Egestion (D) | show 🗑
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show | Energy from the food that is actually digested
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show | New biomass = stored energy (growth, reproduction, and stored materials)
P = A-(R-E); P = I-(D+R+E)
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show | The ratio of assimilated energy to ingested energy (%).
AE = A/I (x 100) = %
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Net Production Efficiency (NPE) | show 🗑
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Ecological Efficiency (EcE) “food chain efficiency” | show 🗑
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show | EcE = consumer production / prey production (x 100) = %
EcE = production of level “n”/ production of level “n-1” (x 100) = %
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show | Freshly dead or partially decomposed remains of organisms and their indigestible excreta.
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show | Biological assimilation of atmospheric nitrogen to form organic nitrogen-containing compounds. N2 + 6 H+ + 6 e− → 2 NH3 (enzyme Nitrogenase)
ex. Rhizobium bacteria symbiosis with legume roots
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show | Oxidation reactions (require oxygen). The oxidation of ammonia by specialized bacteria, yielding nitrite and nitrate.
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Denitrification | show 🗑
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show | Removal of soluble compounds from detritus or soil by water (a physical process)
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show | organic -> inorganic
“true decomposers” = bacteria & fungi
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show | B = The size of a landscape area of interest. N = Overall area encompassed by the study.
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Grain | show 🗑
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Created by:
rstacey1
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