00:01
Hello students in this question we are being asked what is species richness and what is species evenness species richness is the major of number of different species in an ecosystem which means species richness is measured by the number of different species not only one species or a population of a particular species but the different types of species living in a particular area.
00:53
While in case of species evenness, it is the major of relative abundance of each species, which means even if there are different types of species present, how many individuals are in each species and if they are evenly present or the number of each species in evenly present in a particular area.
01:41
That gives the major of species evidences.
01:43
For example, if there is a particular ecosystem and in each ecosystem there are three species and each species has 10, 10 individual walls, then the number of different species present gives the species region.
02:07
So here three species are present.
02:11
We can see this ecosystem has a species richness and each species has 10, 10 individuals, which means that the distribution of different, distribution of individuals of different species is even.
02:27
So even species, evenness is rich also good here and species richness is also good here.
02:34
Now consider another example.
02:36
Same one in an ecosystem suppose there are three species and in one species there are ten individuals another there are five and another there is one even though the species richness is same for example in this one there were three species in this one also there are three species but in this case the number of individuals is not evenly distributed some species are more individuals while and other species are less individual.
03:07
So here species evenness is very low...