Loop method for inbreeding coefficient 

Summation of all possible loop (1/2)n

n= number of individuals in loop except than inbreeding

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#XL - T Zoology

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

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#XL - T Zoology

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

                                                                                    

                                                                                              

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#XL - T Zoology

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

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#XL - T Zoology

          Richard hypothesis 

            

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#XL - T Zoology

Resource partitioning promote coexist  of ecologically similar species

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#XL - T Zoology

                                   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