According to the 10% law, in a terrestrial ecosystem during the transfer of energy from one trophic level to the next, about ten percent of the energy in the form of organic matter is eaten and digested and stored as flesh.
How much of the net productivity of a terrestrial ecosystem is eaten and digested by herbivores?
Only 10% of herbivore productivity is utilised for raising productivity of next tropic level (primary carnivores). while the rest 90% is eaten and used up, in process like respiration, maintenance of body heat and other activities.
How much of the net primary productivity of terrestrial ecosystem is eaten and digested by her?
Explanation: b) 10% of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores.
How much of the net primary productivity of a terrestrial ecosystem?
Energy flow in the ecosystem follows the ten percent law (put forth by Lindermann in 1942 ). From the level of primary producers onwards, only 10 % of energy is stored at the higher trophic level and 90 % is lost (as heat or in respiration etc. ). This energy transfer forms the basis of life.
How much of the primary productivity of the plants is consumed by herbivores?
° 83 × 1010 metric tons of carbon are stored in the plant biomass of terrestrial ecosystems. ° Herbivores annually consume less than 17% of the total net primary production.
What is productivity of terrestrial ecosystem?
“Terrestrial ecosystems rely almost exclusively on the sun’s energy to support the growth and metabolism of their resident organisms. Plants are quite literally biomass factories powered by sunlight, supplying organisms higher up the food chain with energy and the structural building blocks of life.
What is primary productivity and secondary productivity?
The portion of fixed energy, a trophic level passes on to the next trophic level is called production. … So, the primary productivity is the production of organic matter by the producers while secondary productivity is the production of the organic matter by the consumers.
Which data is most useful to measure the primary productivity in a terrestrial ecosystem?
In terrestrial ecosystems, mass of carbon per unit area per year (g C m−2 yr−1) is most often used as the unit of measurement.
Which data is most useful to measure the primary productivity?
Primary productivity is usually determined by measuring the uptake of carbon dioxide or the output of oxygen. Production rates are usually expressed as grams of organic carbon per unit area per unit time.
Which of the following is the correct unit of productivity?
The correct answer is option 3. Productivity = production/unit area/unit time.
What is plant productivity?
Productivity refers to rate at which energy is accumulated by green plant in unit time in the form of organic substance that can be used as food.
What trophic level has the largest number of individuals?
Therefore, the Decomposers level has the largest population in the food chain.
What is a large ecosystem?
A very large ecosystem on land having distinct types of vegetation and animal life is called a biome. The biomes are identified on the basis of plants.