Skip to main content

Biology notes for class 12- Ecological Succession

Biology notes for class 12- Ecological Succession

This article carries detailed information about ‘Ecological Succession’ from the unit Ecology and Environment of Biology of Class 12.
Ecological Succession(ecological means related to ecology i.e study of the surrounding and succession means series of things following one after another) so ecological succession literally means series of changes that are occurring in the surrounding of a given place. Over the period of time, the change occurs in the conditions of the environment/ surroundings which lead to the disappearance of old species and appearance of the new ones.
Characteristics of ecological succession;
  1. It results from the modification of the physical environment of the community.
  2. It is a well-defined and orderly process of the community development.
  3. It brings about changes in the structure of species and hence increases thediversity of species.
  4. Nutrient variation determines the settlement of new community.
  5. The process of succession is self-going, stable and biologically feasible.
There are three major causes that are responsible for ecological succession-
  1. Initiating Causes: They are the factors that lead to the destruction of the existing habitat and population over there, thus initiating the process of ecological succession. There are two main factors; climatic factors like wind, fire, natural calamities, etc. and biotic factors which include activities of various organisms.
  2. Continuing causes: The continuing causes of succession are also known asecesis.The processessuch as aggregation, competition, migration etc.occur continuously in a particular habitat. These processes cause changes in soil structure of that area like a change of soil nutrients, accumulation of organic matter, soil pH etc.

Visit www.takshilalearning.com for NCERT solutions, online classes for Class 12 Chemistry/Biology.Call us : 8800999280/8800999284

Labels:

Comments

Post a Comment

Thank you we will contact ASAP.

Popular posts from this blog

Why is Hindi Day celebrated on 14 September?

Why is Hindi Day celebrated on 14 September? After independence, the Government of India set a goal to give an ideal form to the mother tongue of the country and set a target for grammar and orthography using the Devanagari script to bring standardization in writing. Subsequently, on September 14, 1949, the Constituent Assembly decided by a vote that Hindi would be the official language of India. To propagate the importance of this decision and to spread Hindi in every region, India is celebrating Hindi Day every year from 1953 to 14 September, at the request of Rashtrabhasha Prachar Samiti, Wardha. Apart from this, 14 September is also the birthday of Rajendra Singh, who worked tirelessly to make Hindi the official language of India. Hindi Day is observed every year on 14 September to mark the importance of the Hindi language in the country. The Hindi language is one of the oldest languages, which derives most of its academic vocabulary from the Sanskrit language written in the Deva
Post a Comment
Read more

Magnetic and non-magnetic material Class 6 Science

Magnetic and non-magnetic material  Class 6 Science A magnet is a substance that is drawn to certain magnetic materials like iron, cobalt, and nickel. Magnets have the ability to draw iron to them. Natural magnets are rocks that naturally draw iron. Non-magnetic materials include things like wood, rubber, coins, feathers, leather, etc. that are not drawn to iron. Magnet characteristics It pulls magnetic materials, such as iron. The magnet's two ends are referred to as its poles. The magnet's diametrically opposed poles are drawn together. Heating, hammering, or dropping causes it to lose its characteristics. On the basis of properties types of Magnets Temporary magnets are those magnets that are magnetic for only a little duration. Typically, iron, cobalt, or nickel are used to make them. When they are close to the powerful magnet, they act like a magnet. When they are yanked away from the powerful magnet, they stop being magnetic. Permanent magnets are magnets that have magne
Post a Comment
Read more