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How could you generate an estimate of total NPP from all producers in system like a lake, pond, or stream?
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- what areas (lake, pond, stream) would you expect to have the highest rate of productivity? The lowest? Why?What is the difference between gross primary productivity and net primary productivity.If the area of a nature reserve is 6215 km2, and the carrying capacity of the area is 0.06 individuals per km2 , what is the carrying capacity of the whole nature reserve?
- The Amazon rainforest continues to be cleared for agricultural land. For each square meter of this rainforest area that was cleared and replaced by farmland, by about how much was NPP reduced each year? Show how you got your answer.Distinguish between gross primary productivity (GPP) and net primary productivity (NPP)What is Primary Production and what are the factors that limit primary production in terrestrial and aquatic ecosystems. Give examples of where some of the most productive systems are on land and in water. Distinguish between Gross Primary Productivity and Net Primary Productivity
- what would you expect to be primary producers in an oligotrophic lakeNet primary production per unit area is likely to be highest in which of the following ecosystems?a. grasslandsb. desertsc. temperate deciduous forestsd. tropical rain forestsIn a community that has 4 trophic levels, what biomass of primary producers is necessary to maintain a tertiary consumer biomass of 1.78 kg/m^2? * a) 178 kg/m^2 b) 17800 kg/m^2 c) 1780 kg/m^2 d) 17.80 kg/m^2
- Why is "carrying capacity" an important parameter for a healthy ecosystem?What percentage of the world reliable runoff are we using and what percentage we likely be using by 2025What conditions produce an inverted pyramid of biomass in which the consumers have a greater biomass than the producers? Can you think of an example of an inverted pyramid of numbers in which there are, for example, more herbivores than plants on which they feed?