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Ecological efficiency is a combination of several related efficiencies that describe resource utilization and the extent to which resources are converted into biomass. [ 1] Exploitation efficiency is the amount of food ingested divided by the amount of prey production ( ) Assimilation efficiency is the amount of assimilation divided by the ...
An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in an ecosystem . A pyramid of energy shows how much energy is retained in the form of new biomass from each trophic level, while a pyramid ...
Energy flow is the flow of energy through living things within an ecosystem. [ 1] All living organisms can be organized into producers and consumers, and those producers and consumers can further be organized into a food chain. [ 2][ 3] Each of the levels within the food chain is a trophic level. [ 1] In order to more efficiently show the ...
The trophic level of an organism is the position it occupies in a food web. Within a food web, a food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain. A food web starts at trophic level 1 with primary ...
Liebig's law has been extended to biological populations (and is commonly used in ecosystem modelling). For example, the growth of an organism such as a plant may be dependent on a number of different factors, such as sunlight or mineral nutrients (e.g., nitrate or phosphate). The availability of these may vary, such that at any given time one ...
The photosynthetic efficiency is the fraction of light energy converted into chemical energy during photosynthesis in green plants and algae. Photosynthesis can be described by the simplified chemical reaction. 6 H 2 O + 6 CO 2 + energy → C 6 H 12 O 6 + 6 O 2. where C 6 H 12 O 6 is glucose (which is subsequently transformed into other sugars ...
Only about 10% of the energy transferred between each trophic level is converted to biomass. Main article: Ecological pyramid An ecological pyramid is a graphical representation that shows, for a given ecosystem , the relationship between biomass or biological productivity and trophic levels .
Carrying capacity. The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available. The carrying capacity is defined as the environment 's maximal load, [clarification needed] which in population ...