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 about 25 parasites of protozoans? And writ the class family and full history about these parasites?

WORL D CONSERVATION STRATEGY PROPOSES THE FOLLOWING STEPS - 1.       Preservation of critical habitats. 2.       Protection of wild life in situ (in natural habitats) as we

Plants of Estuary The plants of the estuary are of four basic types: Phytoplankton, Marginal marsh vegetation, Mud-flat algae and Epiphytic plants

Q. Living beings are made of inorganic and organic substances. According to the molecular complexity how can each of those substances be classified? Inorganic substances, mole

What is meant when it is said that a virus is in an inactive state? Viruses considered in inactive state are those whose genetic material is within host cells without synthesis

ADRENA L MEDULLA The adrenal medulla develops from the neuroectoderm of the embryo. Medulla consists of chromaffin cells or phaeochromocytes. These cells are connected wi

Indications for Surgery : Patients usually present with fatigue, dyspnoea and ventricular arrhythmias. If they have additional tricuspid regurgitation, pulmonary valve replacement

Devonian  is the period of geologic time from 410 - 360 million years before the present. Life on land diversified, with amphibians appearing late in this period of time. Plants we

Why Fish and Sea Foods are important for human Body? They are rich sources of proteins (20-25%) of a high biological value. Dry fishes contain more (60%) proteins since most of

Explain how you would create a standard curve to determine the amount of orange dye that had been added to a can of orange soda