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BIODIVERSITY AND RESEARCH METHODOLOGY

by sandesh thapa | 08-04-2020 00:57 recommendations 0

Biodiversity and research methodology

This topic I am discussing today may be completely new,most of us may be unaware of it. But we are aware of our biodiversity and number of species observed around us.

Now lets calculate the bioDiversity index of our homegarden in lockdown and quarantine days.

What we should do to calculate the diversity index?

Its very simple guys, calculate the number of individual plant recorded in your home garden. Eg. If you have 12 plants of marigold then record as marigold=12 and so on.

Accordingly you will get population of all the species. Now we are calculating the diversity indices. Diversity index and their significance are listed as:

 

Shannon Weiner diversity: values of diversity lies between 1.5-3.5, greater than 3.5 is very rare [1], [2].

Equation is presented in picture where;

 H = the Shannon index;

 Pi = fraction of the entire population made of species i

 S = number of species encountered;

 ¢² = sum from species to species and

ln= natural logarithm to the base e

(log).

Simpson 1-D:  The measure of diversity which reveals that higher the value of 1-D higher is the sample diversity and value lies between 0 and 1 [1], [3]–[5].

 

 Equation is presented in picture Where n= total number of particular species; N = total number of all species sampled; D= Simpson index.

Lets try this in all of our home gardens I have recorded 89 species in my home garden and Shannon diversity index was 3.34.

Is there any calculation shortcuts?

Yes, there'S calculation shortcuts. You can calculate using Ms excel and PAST 4.0.1 [6]. Past being a data analysis software not only these indices are calculate more information on your home garden can be elaborated.

This research methodology is adopted in most of the ecological studies for calculating ecosystem diversity. Here we have tried to explain in terms of homegarden diversity.

 

Thank you

Sandesh Thapa

 

 

References

[1]      A. Magurran, ¡°Measuring Biologcial Diversity,¡± Blackwell Publishing. p. 256, 2004.

[2]      R. K. Peet, ¡°The Measurement of Species Diversity,¡± Annu. Rev. Ecol. Syst., vol. 5, no. 1, pp. 285–307, 1974.

[3]      A. A. Semu, ¡°The Study of Homegarden Agrobiodiversity, Practices of Homegardening and Its Role for <i>In-Situ</i> Conservation of Plant Biodiversity in Eastern Hararghe, Kombolcha Town Oromia Regional State Ethiopia,¡± Open J. For., vol. 08, no. 02, pp. 229–246, 2018.

[4]      kerekhoff, ¡°Measuring biodiversity of ecological communities,¡± 2010.

[5]      A. J. Daly, J. M. Baetens, and B. De Baets, ¡°Ecological diversity: Measuring the unmeasurable,¡± Mathematics, vol. 6, no. 7, 2018.

[6]      D. A. T. Hammer, P. D. Ryan, ¨ª. Hammer, and D. A. T. Harper, ¡°Past: Paleontological Statistics Software Package for Education and Data Analysis,¡± 2001.

 

 

 

 

 

 


EQUATION OF SHANNON DIVERSITY AND SIMPSON D.

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14 Comments

  • sandesh thapa says :
    Greetings Rupak,

    You are welcome and thankyou.

    Regards,
    Sandesh
    Posted 18-04-2020 21:54

  • sandesh thapa says :
    Greetings Saurav,

    You are welcome and thank you.

    Regards,
    Sandesh!!!
    Posted 18-04-2020 21:53

  • Rupak Jaiswal says :
    Thank you for report!!
    Posted 17-04-2020 15:35

  • sandesh thapa says :
    Hello Sandhya,

    Thank you For the Response and hope you too have calculated diversity index of your houses.



    Regards,
    Sandesh!!
    Posted 10-04-2020 13:20

  • sandesh thapa says :
    Greetings Asmita,

    Yes, it is included in course of environment sciences and ago-ecology. home garden researches in Nepal s too low. using these tools we can calcualte the species richness of our area.
    for, details of study you can contact on: sand.thapa.2056@gmail.com

    Thank you
    Sandesh!!
    Posted 10-04-2020 13:18

  • Sandhya Adhikari says :
    Hello Sandesh,
    Thanks for making us more clear about this topic!!
    keep writing,
    Yours,
    Sandhya
    Posted 10-04-2020 01:33

  • Asmita Bhusal says :
    Hello Sandesh
    Thanks for sharing.
    We got to read this on our course book too.
    Thank you for making it more clear.
    Regards
    Asmita
    Posted 10-04-2020 00:08

  • sandesh thapa says :
    Greetings Sarah,

    thankyou for the response.
    Posted 09-04-2020 18:01

  • Sarah Poudel says :
    Greetings
    Thank you so much for this report

    Green cheers!!
    Sarah
    Posted 09-04-2020 16:32

  • sandesh thapa says :
    Greetings Bidhya,


    you are welcome and stay safe stay healthy and stay at home.



    Regards,

    Sandesh!!!
    Posted 09-04-2020 11:57

  • Biddhya pandey says :


    Thank you for this report

    Posted 09-04-2020 03:47

  • sandesh thapa says :
    Greetings Sonika,


    You are welcome and hope to present many more in coming days.
    #STAYSAFE

    Regards.
    Sandesh!!!
    Posted 08-04-2020 11:28

Sonika Pariyar

  • Sonika Pariyar says :
    Hello Sandesh!!

    Thank you for report!!

    Keep on writing !!
    GREEN CHEERS!!

    Posted 08-04-2020 11:10

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