Limitations of ecological pyramids, Biology

Limitations of Ecological Pyramids

The pyramid of energy is a significant improvement over the previous two types of ecological pyramids, yet all of them overlook one or another important aspect. Some of these limitations are discussed below.

  1. Some species practise more than one mode of nutrition or belong to two or more trophic levels. This is particularly true in the case of consumers of higher trophic levels. Man is an example. He gets his food from primary producers as well as from higher trophic levels. Such organisms which feed at more than one trophic level are extremely difficult to depict in ecological pyramids..
  2. Saprophytes play a vital role in ecosystem but they are not represented in ecological pyramids.
  3. Detritus such as litter and humus is an important source of energy and exerts considerable influence on ecosystem function, yet it is not depicted in ecological pyramids.
  4. Ecological pyramids do not provide any clue to seasonal and diurnal variations.
  5. The rate of transfer from one trophic level to another is not reflected in the ecological pyramids.
Posted Date: 1/19/2013 1:04:00 AM | Location : United States







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

Write discussion on Limitations of ecological pyramids
Your posts are moderated
Related Questions
write down the division of cryptogamae and phanerogamae

Chest Observe for retraction of the intercostal muscle which is indicative of severe respiratory distress (a sign of hyaline membrane  disease).  Inspect the brea

What is deplasmolysis of plant cells? The plant cell when placed under hypertonic medium loses a huge amount of water and its cell membrane detaches from the cell wall. In that

Oxidative decarboxylation of pyruvate Oxidative decarboxylation ofpyruvate : This is an important step in tissues with high oxidative capacity such as cardiac muscle, whereby

Binomial Nomenclature The modern system of classification (Binomial nomenclature) accepted by biologists today was proposed in 1758 by the Swedish botanist Linnaeus (1707-1778

Coronal Disassembly -If the existing restoration functionally designed well fitting and esthetically pleasing , -The access the pulp chamber during retreatment is better app

a patient has experienced a bleed in the left frontal lovel of their brain.descibe the effect on motor function for this patient after the bleed.

Maintenance Therapy A complete remission implies a clinical, haematological and bone marrow remission.  For remission therapy drugs like, methotrexate cyclophospharnide and 6-

Q. Vitamins requirements for ulcerative colitis? Vitamins: Commercial multivitamin preparation should be administered orally especially the ones needed for the healing process

Explain Control of Oedema in Nutritional Care? Low levels of circulating proteins lead to oedema due to loss of colloidal osmotic pressure to maintain the normal fluid shift me