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21 Cards in this Set
- Front
- Back
autecology
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study of a single speices as it relates to its environment
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physiological ecology
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study of the physiological processes of a biota as it relates to its environment
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Justus Von Liebig
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Postulated the LAW OF THE MINIMUM, chemist, discovered N as essential plant element
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Law of the minimum
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Growth is limited by the nutrient that is available in the least amount
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Blackman, 1905
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limitations of gas exchange, cant focus on a single factor when many factors are limiting
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Shelford
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species tolerance ranges for environmental factors - distr. is limited by narrowest tolerance range
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Climate
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characteristic long-term means of light, temperature and water
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Weather
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short-term and local admospheric conditions. climate is the mean of weather
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Black Body
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a perfect emitter and absorber of radiation. Ex. the sun
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Gray body emitter
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imperfect absorber of radiation, so spectral quality changes. Ex the earth and the influence of the atmosphere
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Irradiance
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amount or power of radiation incident on a surface (W m-2)
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Fluence
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total energy recieved on a spherical surface
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Joule
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a measure of work or energy, the amount of work required to produce one Watt for one second
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Calorie
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the amount of energy needed to heat 1g of water one degree C
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Solar constant
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1372 w m-2 s-1
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Albedo
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reflected solar radiation, 30% on earth
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Factors changing incoming energy
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solar output, atmospheric absorbance, and local position
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Thermal equator
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belt which recieves most radiation, moves seasonally
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adiabatic cooling
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occurs when the pressure of a substance is decreased as it does work on its surroundings. 3F per 100 ft.
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Coriolis Effect
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deflections of air masses
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adiabatic lapse rate
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which refer to the change in temperature of a parcel of air as it moves upwards (or downwards) without exchanging heat with its surroundings. The temperature change that occurs within the air parcel reflects the adjusting balance between potential energy and kinetic energy of the molecules of gas that comprise the moving air mass. There are two adiabatic rates
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