Pyramid of energy - ecological pyramids, Biology

Pyramid of Energy - Ecological Pyramids

When we wish to compare the functional roles of the trophic levels in an ecosystem, an energy pyramid is probably the most informative. It overcomes some of the objections pertaining to the pyramid of numbers and biomass. An energy pyramid more accurately reflects the laws of thermo dynamics; with loss of energy being depicted at each transfer to another trophic level hence the pyramid is always upright. Energy pyramids in the case of aquatic ecosystem are also upright, even where the pyramid of biomass is inverted.

1124_Pyramid of Energy - Ecological Pyramids.png

Figure:  Pyramid of energy.

In energy pyramids, a given trophic level always has smaller energy content than the trophic level immediately below it. This is due to the fact that some energy is always lost as heat in going from one trophic level to the next. Each bar in the pyramid indicates the amount of energy utilised at each trophic level in a given time, annually per unit area. The unit of measurement is kcal/m2/yr.

Posted Date: 1/19/2013 12:58:19 AM | Location : United States







Related Discussions:- Pyramid of energy - ecological pyramids, Assignment Help, Ask Question on Pyramid of energy - ecological pyramids, Get Answer, Expert's Help, Pyramid of energy - ecological pyramids Discussions

Write discussion on Pyramid of energy - ecological pyramids
Your posts are moderated
Related Questions
What is the genetic family tree? The Genetic family tree is a schematic family tree that shows the biological inheritance of some trait through successive generations. The G

Septa prevent oxygenated and deoxygenated blood. Give reason

what is nomenalistic specie concept

Golgi complex is the organelles in animal cells having a sequence of þattened sacs which sort, chemically modify, and package proteins produced on the rough endoplasmic reticulum.

State the term - neuropsychologists Disorders of speech, language, reading, writing, and mathematical abilities are understood in terms of linguistics and the psychology of lan

iwant to know all about phylem protozoa?

Explain Protein Deficiencies in Nutritional Care? A depleted amino acid pool leads to poor wound healing (dehiscence), delayed healing of fractures, anaemia, depressed pulmonar

Q. Comparative picture of ecosystem? An ecosystem having higher diversity means the number of species and interactions between them which constitute the food web, is large. In

Q. Explain Spoilage of Cereals and Cereal Products? Cereals are the main source of energy to human beings. There are several varieties of cereals, of which wheat and rice are t

Nutritional and functional role of minerals in foods Essential elements including the main elements and a number of trace elements fulfill various functions: as electrolytes, a