0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
The amount of organic material that the autotrophic organisms of an ecosystem produce?
primary productivity.
Why does the level of primary productivity increases at the equatorial approach?
The theory that the level of primary productivity increases at the equatorial approach is relatedÊto what is called theÊlatitudinal diversity gradient. Basically, it occurs because the numbers of species are higher near the tropic zone than at the poles. There is an increase in solar energy at lower latitudes orÊthe equator that causes an increase in net primary productivity or photosynthesis. With more plants availability at lower latitudes, more species can be supported in these regions.
What part of the organization has primary responsibility of productivity?
The manager
What biome has the highest primary production in terrestrial ecosystems?
Tropical rain forests have the highest primary productivity of any ecosystem on the planet.
What is the primary productivity hypothesis?
The primary productivity or "bottom up" hypothesis suggests that plant growth is limited by the energy available to plants which is determined in turn by temperature and precipitation. Additional plant growth means more forage is available--thus herbivores, and ultimately carnivores, should increase in abundance.
What is the difference between net primary productivity and primary productivity?
primary productivity is defined as the amount of . organic matter produced per unit area over a time period by plant during photosynthesis. and gross primary productivity minus respiration losses is the net primary productivity .
How are gross and net primary productivity of a community related?
Gross Primary Productivity- Total amount of chemical energy stored by photosynthesis. Net Primary Productivity- Remaining energy, which is available to the consumers as food.
What is the gross primary productivity minus the respiration rate of producers?
net
What has an immediate effect on net primary productivity?
light temperature, and precipitation
Equals the gross primary productivity minus the respiration rate of producers?
net
Which organisms are responsible for the majority of the net primary productivity in shallow marine waters?
Phytoplankton
Net primary productivity is greatest on land?
The oxygen in the atmosphere is primarily derived from plant respiration
What name given to describe the amount of plant biomass available for consumption by heterotrophs?
net primary productivity
Rank these ecosystems from lowest to highest primary productivity open ocean tropical rainforest desert lake?
from lowest to highest it is: desert, open ocean, lake, tropical rain forest
The amount of organic material that the autotrophic organisms of an ecosystem produce?
primary productivity.
What is the difference between gross primary productivity and net primary productivity?
Gross primary production consists of the amount of light energy that is converted to chemical energy by photosynthesis per unit of time. This chemical energy is going to two places-- respiration and growth of new biomass. Net primary production omits the energy used in respiration... just the energy going to new plant growth. Mathematically: (R = respiration) NPP = GPR - R
Is the net primary productivity more at he equator or poles?
NPP decreases from the equator to the poles as a result of the amount of solar radiation available. Therefore, NPP is more at the equator.
