Autogenic and allogenic succession, Biology

Autogenic and Allogenic Succession

In many cases the living beings of an ecosystem, modify their environment considerably by their growth, death and decay. The changed conditions lead to the establishment of new kinds of species in that area. The whole process goes on and on, that is, there is replacement of one kind of community with another. Such a succession process is called autogenic succession. To sum up, autogenic succession results because of the changes brought about in the habitat by the members of the community themselves.

In some cases, the changes brought about in the habitat are caused by external agencies and not by the existing vegetation itself. This is called as allogenic succession. Such a succession may occur in a highly disturbed or eroded area or in ponds where nutrients and pollutants enter from outside and modify the environment and in turn the communities.

Posted Date: 1/19/2013 8:12:55 AM | Location : United States

Related Discussions:- Autogenic and allogenic succession, Assignment Help, Ask Question on Autogenic and allogenic succession, Get Answer, Expert's Help, Autogenic and allogenic succession Discussions

Write discussion on Autogenic and allogenic succession
Your posts are moderated
Related Questions
classification of grantia

Explain the Diarrhoeal Management Strategies? The diarrhoeal management strategies have had a major impact on less than 5 mortality rate. The distribution of ORS packets and ne

Which of the following is true for a primary motor cortex (M1) corticospinal interneuron that produces action potentials during movements of the big toe of the right foot? A. A

Q. Effects of smoking on oesophagitis? 1. A decrease in pyloric sphincter pressure which may predispose an individual to duodenal ulcer. 2. An alteration in the nature of ga

Deinococcus radiodurans is a bacterium that was isolated from cooling ponds in and around nuclear power plants. It is highly resistant to ionizing radiation. Propose an hypothesis

Changes in the conformation of molecules - Qualitative Changes You may recall that linear chain of amino acids of a protein folds into a characteristic structure. Acidic resid

Define Vitamins requirement to avoid underweight problem? Vitamins and Minerals: If the diet provides good amounts of fresh fruits and vegetables, vitamin or mineral supplement

Explain the Sedimentation - Air Sampling? It is the simplest method, which involves exposing agar plates in air for specified time at a location to be sampled.  Microorganisms

What happens when the ovum is fertilized? If the ovum is fertilized, there is no breakdown of endometrium and no menstrual flow. The fertilized ovum travels through uterine tub

Explain Atazanavir Atazanavir (ATV, Reyataz) - Atazanavir (Medical Letter 2003; 45:89) is the first single-agent protease inhibitor with once-daily dosing. In clinical trials