Enter the numbers separated by commas and the calculator will readily calculate the diversity of a species within a particular area of land along with statistical index parameters.
The quantity that is used to represent the numerous life sorts on the planet is called biodiversity.
“a selected parameter that determines the range of a species in an atmosphere is called the Shannon diversity index”
Now you may effortlessly estimate the range of a species in an atmosphere with the assist of the following Shannon Index Equation given beneath:
$$ H = - \sum[\left(p_{i}\right) * \log\left(p_{i}\right)] $$
in which:
H = Shannon diversity index
It corresponds to the abundance of an man or woman species with appreciate to the others.
$$ p_{i} = \frac{n}{N} $$
n = No of people in a given species
N = the entire wide variety of individuals in a community
Along with checking the variety of a population in an surroundings, you ought to pass for determining the different factors which have a terrific effect at the populace of a species within the surroundings. So allow's circulate in the direction of them:
average population size is truely the quantity of individuals residing within one single unit of location.you could discover the common populace length within a locality through subjecting to the formulation under:
$$ \text{Average Population Size} = \frac{\text{Total Individual Sum of Species}}{\text{No. of Species}} $$
Evenness:
Evenness corresponds to the closeness of diverse species in an environment. essentially, it is an extent to which exclusive species are allotted in an atmosphere. you can determine this amount by subjecting to the following equation:
$$ - \sum \left(\frac{n_{i}}{N} * ln\left(\frac{n_{i}}{N}\right)\right) $$
The free Shannon range calculator additionally takes into attention the usage of the above noted formulation to depict the very last effects in a fragment of seconds.
Richness:
Richness corresponds to the total number of species residing in a selected habitat.
$$ Richness = \text{No. Of Individuals} $$
Margalef Richness Index:
it's miles an alternative way to decide the species richness in an environment. move for figuring out the Margalef richness index by the usage of the following equation:
$$ \frac{S-1}{lnN} $$
in which:
S = number of Species
N = overall sum of the individuals
Inverted Berger Parker Dominance:
This unique parameter gives you organic statistics approximately the maximum ample species in an ecosystem.
$$ \text{Inverted Berger Parker Dominance} = \frac{N}{n_{max}} $$
Where:
\(N_max\) = Maximum number of the individuals
Simpson’s Index:
This element determines the biodiversity of a species relying upon the relative species’ abundance together with the overall character families present.
$$ \text{Simpson’s Index} = \frac{\sum_{i} n_{i} \left(n_{i} - 1\right)}{N\left(N-1\right)} $$
Dominance Index:
The quantity of the most not unusual species in a n ecosystem is calculated with the usage of this index as follows:
$$ \text{Dominance Index} = \frac{1 - \sum_{i} n_{i} \left(n_{i} - 1\right)}{N\left(N-1\right)} $$
opportunity Reciprocal Simpson Index:
$$ \text{Alternative Reciprocal Simpson Index} = \frac{1}{Simpson’s Index} $$
Menhinick Index:
you could measure this index by commencing to the formula as written underneath:
$$ \text{Menhinick Index} = \frac{S}{\sqrt{\sum_{i}n_{i}}} $$
Simpson’s Index Approximation:
$$ \text{Simpson’s Index Approximation} = \frac{\sum_{i}n_{i}^{2}}{N^{2}} $$
Reciprocal Simpson Index:
$$ \text{Reciprocal Simpson Index} = \frac{1}{\frac{\sum_{i}n_{i}^{2}}{N^{2}}} $$
Dominance Index Approximation::
$$ \text{Dominance Index Approximation} = 1-\frac{\sum_{i} n_{i}^{2}}{N^{2}} $$
Buzas And Gibson’s Index:
$$ \text{Buzas And Gibson’s Index} = \frac{e- \sum_{i} \left(\frac{n_{i}}{N} * ln \left(\frac{n_{i}}{N}\right)\right)}{S} $$
Gini Coefficient:
it's far every other approach used to decide biodiversity that compares the species cumulative percentage in opposition to the cumulative proportion of the people found in an atmosphere.
$$ \text{Gini Coefficient} = \frac{2 \sum_{i}in_{i}}{n \sum_{i}n_{i}} - \frac{N+1}{N} $$
Our fine Shannon diversity index calculator also determines a lot of these parameters however in seconds that save you a variety of time.
Get going to analyse a species’ diversity in an surroundings with this loose biodiversity calculator. permit’s find out the way it works!
Input:
Output: The unfastened shannon wiener index calculator determines:
every time the have an impact on of richness gets very high over the biodiversity, it creates a bad relation amongst both evenness of the species and their diversities. this could permit the Shannon index emerge as bad as nicely that would be verified through the use of our exceptional Shannon diversity index calculator.
The variety index lies in between zero and 1. The greater the fee gets towards the 1, it is taken into consideration greater dependable.
