What three ecosystems have the lowest productivity?
The biomes with the lowest levels of primary productivity include deserts, the tundra, the open ocean, and the lakes and streams biome.
What ecosystems have the least amount of productivity per unit area?
What ecosystems are the least productive in the world? Tundras and extreme deserts. The ocean open does not contain as much life per unit area, but is responsible for a large amount of the Earth’s NPP.
What contributes to the lowest net primary production?
Net primary productivity varies among ecosystems and depends on many factors. These include solar energy input, temperature and moisture levels, carbon dioxide levels, nutrient availability, and community interactions (e.g., grazing by herbivores) 2.
Which of these ecosystems has the highest primary productivity per square Metre?
In terms of NPP per unit area, the most productive systems are estuaries, swamps and marshes, tropical rain forests, and temperate rain forests (see Figure 4).
Which is the smallest ecosystem?
a drop of water is the smallest ecosystem…!!!!!!
Why open ocean has lowest net primary productivity?
Because of the density difference between surface water and the deep sea across most of the ocean, ocean circulation can only very slowly reintroduce dissolved nutrients to the euphotic zone. By driving nutrients out of the sunlit, buoyant surface waters, ocean productivity effectively limits itself.
What ecosystems are the least productive in the world?
The two most productive are estuaries, swamps and marshes, and tropical rain forests. The two least productive are open ocean, tundra, and desert.
Which ecosystem has the highest net primary productivity per unit area quizlet?
How is it that the open ocean produces the highest net primary productivity of Earth’s ecosystems, yet net primary productivity per square meter is relatively low? Oceans contain greater concentrations of nutrients compared to other ecosystems. Oceans receive a greater amount of solar energy per unit area.
Which of the following ecosystem has the highest net primary productivity?
The tropical rainforest has highest annual net primary productivity (9000 K cal / m2 / yr).
How much of the net primary productivity of a terrestrial ecosystem eaten and digested by herbivores?
Net primary productivity is actually the amount of energy available at a particular level after meeting the cost of respiration. When a herbivore feeds on the producers only 10 percent of the NPP is available for the herbivores.