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Lecture Quiz 5 Jeopardy Stuff
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$200 $400 $600 $800 Vitality Chronicles
Accommodation to Thermal Readings Transformation to Inferno Vitality Chronicles Populace Arrangement and Affluence Populace Fluctuations $200 $400 $600 $800
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Define Counter-Current Heat exchange and provide one example of it in an organism
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Two pathways run anti-parallel to each other in close proximity, allowing for an exchange of heat, nutrients, etc. between the two Reduce water loss, reduce heat loss, cools down the brain, etc.
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Define Allen’s Rule
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Extremities will be larger on organisms in hotter areas
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TN zone is the temperature range in which metabolic rate of an organism will stay the same. Below the lower critical temperature, the animal has to spend much energy to produce heat. Above the upper critical temperature, metabolic rate goes up because it costs energy to get rid of heat. The more insulated an organism is, the lower the rate of increase of metabolic rate will be
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Provide 3 adaptations to heat (behavioral, morphological, or physiological) for both a kangaroo rat and a camel
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Kangaroo rat: Does not drink liquid water, produces dry feces, counter-current heat exchange in the nose reduces evaporation Camel: Counter-current multiplier in kidney, large body mass, fat storage, fur insulation, CCHE in the nose, sweating
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List the 3 factors that affect fire occurrence
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Ignition, Fuel, and Weather
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List and define the 4 types of fires that occur
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Surface Fires: Fire below the canopy burning only the surface vegetation Crown Fires: Fire reaching the canopy burning everything in its path Head Fires: Fires moving with the wind Back Fires: Fires moving against the wind
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Provide 3 reasons for more frequent massive, violent fires in America
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Increase in fuel abundance Loss of mosaic pattern of vegetation Hot, dry weather Overgrazing
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List an adaptation to fire for each, Lodgepole Pine, Longleaf pine, Grasslands, and Redwoods
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Lodgepole Pines: Serotinous Cones Longleaf Pine: Protected meristem in early ages, grows rapidly out of the danger zone Grasslands: Underground meristem Redwoods: Thick fire-resistant bark
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Define the terms Iteroparous and Semelparous
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Iteroparous: An organism that will reproduce more than once during its life cycle Semelparous: An organism that will only reproduce once in its life cycle
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Define the Principle of Allocation
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If organisms use energy for one function such as growth, the amount of energy available for other functions is reduced
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Compare and Contrast 4 different aspects of the life histories of both r-selected, and k-selected individuals
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Define the environments that classify Ruderals, Stress-tolerant plants, and Competitive plants
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Ruderals: Low Stress, High Disturbance Stress-tolerant: High Stress, Low Disturbance Competitive: Low Stress, Low Disturbance
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Define the terms Genet, Ramet, and Clone
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Genet: Products of a single fertilization Ramet: Independent members of a genet Clone: Genetically identical copies
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List the 3 types of distribution and define what processes cause them
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Regular: High competition of limited resources (Negative interactions) Random: Neutral interactions, each individual has the same chance of survival anywhere Clumped: Resources limited to certain areas (Positive interactions)
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Explain the process of niche modeling and how it’s used to estimate abundances and distribution
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Niche modeling examines the suitable habitat (ecological niche) of a given organism, and compares that niche to other areas to determine whether that organism would survive/thrive elsewhere
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Give one example how both biotic and abiotic factors affect the distribution of a population
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Organisms, like the Semibalanus balanoides barnacle, can only survive in climates to which they are adapted, but even if the abiotic factors are tolerable, biotic factors such as predators may limit where the barnacle can survive
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Define the terms Survivorship and Fecundity
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Survivorship: the percentage of individuals that will survive to the next time period Fecundity: the number of newborns those survivors will produce in the next time period
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Define and give an example of an organism that experiences each type of survivorship curve
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Type I: Majority of mortality occurs among older individuals (ex
Type I: Majority of mortality occurs among older individuals (ex. Dall Sheep) Type II: Constant rate of survival throughout lifetime (American Robins) Type III: High mortality among young, followed by high survivorship (Sea turtles)
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Populations with more younger individuals than older individuals will experience rapid growth and vis versa
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Define each of these variables and explain what their definitions mean: Ro, x, lx, Mx, T
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Ro. =. Net reproductive rate x. =. Age interval in years lx. =. % pop
Ro = Net reproductive rate x = Age interval in years lx = % pop. surviving to each age (x) Mx = Average number eggs produced by each individual in each age category T = Average Generation Time r = Per Capita Rate of Increase
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