1. CHARACTERIZATION OF AN ECOSYSTEM



CHARACTERIZATION OF AN ECOSYSTEM


The term derived from the greek term oekologie
                              Oikos – house/home
                              Logy- the science of or the study of

The term ecology was coined by a German biologist “ Ernst Haekel” in 1869.

Definition

Ecology can be defined as the science of plants and animals in relation to their environment.

  • v  Autecology:  Study of individual organism or an individual species in relation to the environment.
  • v  Synecology: study of the group or groups of organisms associated in a community in the same environment.

TERMINOLOGIES
  • v  Habitat ecology: study of habitat and its effects on the organisms.
  • v  Biome: The grouping of communities that have similar structure composed of ecosystem of a similar vegetation type.
  • v  Biome ecology: interaction between different communities in an area.
  • v  Biota: Fauna and flora of a particular habitat.
  • v  Population: Individual organisms of the same species living together. (or) A group of individuals or a species occurring in a given area or locality at a specific time.
  • v  Community: All population in the area at a specific time.
  • v  Ecosystem: The complex system of biotic and abiotic factors.(Living organisms and non living environment).
  • v  Agro-ecosystem: Crops+ Insects+ Other animals(Birds, Rodents etc.,)+ Physical abiotic factors.
  • v  Biosphere/Ecosphere: It is the largest, self sufficient system which includes all of earth’s living organisms and physical environment.
  • v  Niche: It is a compilation of all needed resources both qualitative and quantitative terms.


             A food chain is the path of food from a primary producer to a final consumer.


    TERRESTRIAL ECOSYSTEM- FOREST ECOSYSTEM
        

AQUATIC ECOSYSTEM - POND ECOSYSTEM

   
     
    

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