Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Frequency - Synthetic Characters
This term refers to the degree of dispersion of individual species in an area, and is usually expressed in terms of percentage. Frequency can be studied by sampling the study area at several places at random or in a desired pattern, so that the site is covered adequately and the names of the species that occur in each sampling unit are recorded. Let us now see how frequency of a species is determined. Consider a species that occurs in five sampling units out of a total of 20 sampling units, and then its frequency (F) is 25%. It is calculated by the following formula:
F = (Number of sampling units in which that species occurred /Total number of sampling units studied) * 100
A species most abundantly spread all over the area will have chance of occurring in all the sampling units, and therefore, its frequency will be 100%. A poorly dispersed species, with large number of individuals aggregated in one place will have a chance of occurrence in only a few sampling units and its frequency value will be low. Thus a high frequency value shows a greater uniformity of its dispersion. Have you noticed that for determining the frequency, the presence or absence of a species in the sampling units is recorded and not the number of individuals of each species, and thus, you should be able to differentiate it from density for which the number of individuals per unit area is recorded. 'Frequency of a species relative to other species in a community is called relative frequency, and is calculated as:
Relative Frequency = (Frequency of a species /Total frequencies of all species) * 100
What are the main functions of (a) the basal (Malpighian) layer, (b) the cornified layer of the skin? (a) The basal (Malpighian) layer makes new skin cells and the pigment
Q. What is the official name of pyruvic acid? Pyruvic acid is named as 2-oxopropanoic acid it is thus a molecule made of three linearly bound carbons with one extremity forming
Determine Pull-ups test for check the body strength? This test is also done to measure upper body strength or endurance by maximum number of pull-ups completed. Subject hangs f
a_molecule can be dissolved in water solution but a _molecule does not mix with water
Define the Concept of Health Care? We are aware of the fact that health is a fundamental human right. Thus, it becomes imperative for the State to assume responsibility for the
How is the nervous system of nematodes organized? Where are the neural chords located in their body? Roundworms have a ganglial nervous system with an anterior neural ring sho
What is the typical biological function of the connective tissues? How is this function associated to the main features of its cells? The typical function of the connective tis
HEMICELLULOSE It consists of mannose, galactose, arabinose & xylose. It is a structural polysaccharide which helps in formation of cell wall. Maximum quantity of hemic
name two examples of biotechnology that use recombinant DNA technology and two examples that do nnot
Nutrient Availability You have seen that cation exchange plays an important part in nutrient availability to plants. Cation exchange functions in two ways as nutrients are rele
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd