Quantitative characters - population density, Biology

Assignment Help:

Quantitative Characters - Population Density

Density denotes the average number of individuals of a particular species in a unit area. In other words, it represents the numerical strength of a species in a community. A study of density makes it possible to have accurate and direct comparisons of the abundance of species between different areas. Density also gives an idea of the degree of competition between the members of the same species as well as of one species with the other. It is calculated as follows:

Density = Total number of individuals of a species in all the sampling units / Total number of sampling units studied

The value thus obtained is expressed as number of individuals per unit area.

  • Crude density - is the density of individuals of a species throughout the habitat and is determined by random sampling.
  • Ecological density - refers to the density of individuals of a species.

Related Discussions:- Quantitative characters - population density

Determine the purpose of glucometer, Glucometer mainly for the following pu...

Glucometer mainly for the following purpose. (i) In acute and chronic care facilities at the patient's bedside, in clinics or hospitals. (ii) In physician's clinics. (iii

Supplementation for prevention of vitamin a deficiency, Define Supplementat...

Define Supplementation for prevention of vitamin A deficiency? Administration of large doses of vitamin A to children at risk has been the most popular approach to control nutr

Emf, In a neuron with a resting potential of -65 mV, the distribution of wh...

In a neuron with a resting potential of -65 mV, the distribution of which ion across the neuronal membrane represents the greatest potential electromotive force (EMF)? A. Potassiu

How many chromosomes does a human normal haploid cell have, Q. How many chr...

Q. How many chromosomes does a human normal diploid cell have? How many chromosomes does a human normal haploid cell have? How many are the sex chromosomes within each of them?

Difference between adrenergic and cholinergic fibre, Difference between Adr...

Difference between Adrenergic and Cholinergic Fibre- S.NO .   1. ADRENERGI C FIBRE   Release nor adrenaline at their CHOLINE

Define the risk reduction in cardiovascular disease, Q. Define the Risk red...

Q. Define the Risk reduction in cardiovascular disease? Ans. Weight loss by caloric restriction diets has been shown to decrease plasma CRP levels. Additional data indicat

Explain the endocrine glands involved in the menstrual cycle, What are the ...

What are the endocrine glands involved in the menstrual cycle? What are the hormones in action? The endocrine glands that secrete hormones included in the menstrual cycle are t

Sonology, Sonology : This is the study of hearing. Sonology is a type of sc...

Sonology : This is the study of hearing. Sonology is a type of science of neologism which is used to describe the study of sound in a variety of disciplines. In medicine, this term

Spoilage of pasteurized milk, Q. Explain Spoilage of pasteurized milk? ...

Q. Explain Spoilage of pasteurized milk? You would recall that pasteurization is one of the techniques to control and destroy the pathogenic, as well as, .spoilage bacteria i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd