Ecosystem Flashcards
Who termed ecosystem
Reiter
Father of Indian ecology
Ram Deo Mishra Odum
Father of modern ecology
Eugene P Odum
Basic unit of ecology
Individual
Local population adapted genetically to its particular environment
Exotyoe
No of biomes and divided it
12 and Robert Whitaker
Tropical and subtropical grass lands having scattered trees are called as
Savanna
Vertical distribution of different species
Stratification
The amount of biomass or organic matter produced per unit area over a time period during photosysnthesis
Primary productivity
Net primary productivity
GPP- R
Annual net primary productivity of the whole world
170 billion tons
Net Primary productivity by oceans
55 billion tons
Humus is ——- in nature
Colloidal
Decomposition rate is slow in case of
Lignin and chitin
Decomposition is quicker if
Rich in nitrogen and water soluble substances
Climatic condition for quicker decomposition
Warm and moist environment
Incident Solar energy is—- of total solar energy
Less than 50% of par
Plants capture —— % of the PAR
2-10%
Detrivorous are also called as
Saprotrophs
In aquatic ecosystem which is the major conduit for energy transfer
GFC
In terrestrial ecosystem which is the major conduit of energy transfer
DFC
Each tropic level has a certain mass living material at a particular time called as
Standing crop
Pyramid of number in grass land ecosystem
Upright
Pyramid of biomass is inverted in
Aquatic ecosystem
