obtained energy of each organism is utilized in their various
metabolic activities and only 10% energy transferred to the next
trophic level. So that 90% energy is lost at each trophic level
therefore, top consumers like lion etc., are weakest ecologically.- Pyramids of energy show the productivity of any ecosystem.
- Plant community : All types of plants present at a
particular place to form a community, is called as plant community.
The distribution of any species at a place depends upon social nature
of the species which indicates cooperation between them.
- Plant community : All types of plants present at a
- Synecology : The ecological study of any plant community is called
as “gynecology”.
- Phytosociology : The study of structure of plant community is
known as “phytosociology”
- Phytogeography : The study of distribution of the plants
on the earth is called as “phytogeography”. Some characteristics of
plant community are as follows :
(i) Species diversity : There are many verities of organisms found in
a community. The total number of species of plants called as
population. The ecological study of population is called as
Autecology’s. The maximum species diversity is found in tropical
forest. The plants are called as flora and animals are termed as
fauna. The lowest species diversity is found in Tundra biome or
Arctic desert.
(ii) Dominant species : The highest number of plants of a species
present in a community is called as dominant species and whole plant
community is knows as the name of the species. Such as Prosop is
community on Aravali hills and Aravali hills and Pinus
community on Himalaya.