Components of primary production

a. Gross primary production - Total organic matter production including reparatory loss during measurement of period.

b. Net primary production - Amount of matter accumulated by plant per unit area given time. 

 Gross – net = respiration 

TLS Online TPP Program

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#Unit 10. Ecological Principles

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

TLS Online TPP Program

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#Unit 10. Ecological Principles

The Hutchinsonian niche is an "n-dimensional hypervolume", where the dimensions are environmental conditions and resources

                                                                                    

                                                                                              

TLS Online TPP Program

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#Unit 10. Ecological Principles

The differentiation of niches that enables similar species to coexist in a community is called resource partitioning.

TLS Online TPP Program

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#Unit 10. Ecological Principles

          Richard hypothesis 

            

TLS Online TPP Program

#Id: 8010

#Unit 10. Ecological Principles

Resource partitioning promote coexist  of ecologically similar species

TLS Online TPP Program

#Id: 8011

#Unit 10. Ecological Principles

                                   Richard hypothesis 

d/w = resource separation ratio.

d/w < 1, species cannot coexist;

1 < d/w < 3, there will be some competition between species

d/w > 3, species coexist harmoniously