Studied by 27 people
the ecosystem is a self regulatory snd self sustaining
vertical distribution of diff species occupying diff levels of vegetation is?
stratification
rate of conversion of light energy into chem energy of organic molecules in an ecosystem?
gross primary productivity
biomass made available by producer for consumption by herbivores & decomposers?
net primary productivity
what is the rate of production of organic matter by consumers?
secondary productivity
rate of production of new organic matter by rabbit in a grassland is ?
secondary productivity
primary productivity depends upon?
light, temp, water, nutrients, photosynthetic capacity
annual net primary productivity of the whole biosphere is approx?
170 billion tons
most productive ecosystem?
tropical rainforest
productivity at 2nd tropic level is always
less than productivity at the first trophic level
Note 
Flashcard (237)