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
After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 66.2 m horizontally from the end of the ramp. His velocity, just before landing, is 18

IMPLAN TA TIO N - Attachement of blastocyst on the endometrium of the uterus is called implantation. Generally it occurs 7th day after fertilisation. (6-10 days). Blas

Which of the below is a term for mononuclear, granulocytic white blood cells which produce immunoglobulins? a) Platelets b) Lymphocytes c) Erythrocytes (pron: eh-rith-reh

Which of the following is NOT required to determine equilibrium potential of a particular ion? Select one: size of the ion valence of the ion concentration gradient for

Q. What and how many are the pulmonary veins? The pulmonary veins are part of the pulmonary circulation they are vessels that carry oxygen-rich (arterial) blood from the lungs

Q. What is Biological Contaminants? You may recall reading about food borne diseases caused by the consumption of contaminated food items in the last unit. In the

Amylose Amylose molecules have molecular weights ranging from 10 4 -20 6 . Amylose can form an extended shape (hydrodynamic radius 7-22 nm) but generally tends to wind up into

How I can optimize shake flask culture?

What type of athlete would have a above average reaction time please explain.

Q. Which types of tissue have the greatest capacity to regenerate? Epithelial and connective tissues have the greatest capacity to regenerate. In injuries andsmall wounds, epit