Flashcards
ENV final
Cards in this deck (46)
- 1Sound Science (Scientific Method)Objective method of learning about the natural world and human interaction with the natural world
- 2Sustainabilitylife on Earth without long-term depletion of resources and energy
- 3Stewardshipethical framework of interaction with environment.
- 4ecologydeals with the relations of organisms to one another and to their physical surroundings.
- 5Survival Curvea graph showing the proportion of a population living after a given age
- 6limiting factorthe environmental factor that is of predominant importance in restricting the size of a population
- 7law of cons of massmass never changes no matter how parts arrange themselves
- 8biosphereone huge system formed by all living things
- 9Inorganic compoundsmolecules or compounds with neither carbon–carbon nor carbon–hydrogen bonds
- 10lithospherecrust, soil
- 111st law thermodynamicsEnergy is neither created nor destroyed
- 122nd law thermodynamicsIn any energy conversion, you will end up with less usable energy than
you started with. - 13cell respiration purposeto release the potential energy stored in organic matter
which is needed to perform the functions of the consuming organism - 14Critical numberthe lowest population level for survival and recovery
- 15Carrying capacitythe maximum population that a habitat can sustain without suffering degradation
- 16Environmental resistancethe factors that cause death and limit a population’s increase
- 17Top-Down RegulationPopulation regulated by predation
- 18Bottom-Up Regulation:Population regulated by scarcity of necessary resource (food, water, shelter)
- 19Resource PartitioningAdaptation of species to specific conditions to avoid competition
- 20keystone speciesecosystem would suffer without them
- 21annual ecosystem value$35T / year
- 22extirpationspecies ceases to exist in one area but not everywhere
- 23carrying capacitymaximum population the ecosystem can support on a sustainable basis
- 24Maximum sustainable yield (1/2 Carrying capacity)Natural systems can withstand a certain amount of use (or abuse)... HOWEVER, beyond the MSY a system’s regenerative capacities may be damaged or destroyed
- 25Total allowable catchA yearly quota set for the harvest of a species by fisheries managers
- 26Tragedy of the Commonsthe overuse of a common area useable by everyone - where no one maintains the area
- 27Consumptive usePeople harvest natural resources for food, shelter,
tools, fuel, clothing, - 28percolation in hydrologic cyclewater is filtered through silt and sand
- 29subsistence farmingproduces a small yield
- 30Hadley cellwarm air rises at the equator makes rain, dry air falls associated with deserts
- 31true about an ecosystemenergy flows through, nutrients recycle within
- 32photosynthesis6CO2 + 6H2O —> C6H12O6 + 6O2
- 33energy/biomass of trophic levels decrease ___% by each higher level10%
- 34meatit is less effiecient to eat meat
- 35what part of evolution was poorly understood by darwingenetics
- 36total number of known species and estimated # total species2m and 5-30m
- 37cultivars genetic variation comapred to wild speciesgenetic variation has been reduced for uniformity
- 38synthetic fertilizersdisrupt the nitrogen and phosphorous cycles
- 39precautionary principal applied to fisheryTAC below the MSY
- 40fossil fuels representco2 reserve that was removed from atmosphere millions of years ago
- 41nuclear reactor plants rely onfission to generate heat -> boil water
- 42nuclear power is not a complete answer to our energy needs becausetransportation
- 43there are __ nuclear deposits in US0
- 44rate of hydroelectricity usewill stay the same or decrease slightly
- 45disadvantage of wind turbinesbird flight patterns
- 46eagle ford shalefracking site in TX
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- Flashcards on ENV final, created by Andrew Richardson on 14/05/2019.
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- Andrew Richardson
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