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

Explain class mammalia in animal kingdom, Explain Class Mammalia in animal ...

Explain Class Mammalia in animal kingdom? Class Mammalia: Mammals are distinguished by their hair and their mammary glands. Mammary glands, after which this group of vertebrate

What is sex-influenced dominance, What is sex-influenced dominance? The...

What is sex-influenced dominance? The Sex-influenced dominance is the phenomenon in which the manifestation of a phenotype of a gene in heterozygosity depends on the sex of the

Etiologic factor of atherosclerosis, Q. Etiologic factor of atherosclerosis...

Q. Etiologic factor of atherosclerosis? Various factors are responsible for atherosclerosis. These include: 1. Hyperlipidemin: Excess circulating fats in blood especially th

Explain the indole production test, Explain the Indole Production Test? ...

Explain the Indole Production Test? Many microorganisms produce an enzyme tryptophanase which oxidizes amino acid tryptophan to produce pyruvic acid, indole and ammonia. We can

Explain the fistulative surgery - endodontic surgery, Explain the Fistulati...

Explain the Fistulative surgery - Endodontic Surgery = (Incision and drainage) 1 Cortical trephination 2 Decompression 3

Why a species has a diploid chromosome number of 56, A species has a diploi...

A species has a diploid chromosome number of 56. Is it true or false that of the 28 chromosomes in an ovum, 14 are always paternal? Ignore the effects of crossing over. Justify you

Conduction system of the heart, Structure of the Conduction System of the H...

Structure of the Conduction System of the Heart Sinoatrial (SA) Node is the pacemaker node located in the right atrium near the opening of superior venacava. It is called

Determine the term - origin of life on earth, Based on your reading of the ...

Based on your reading of the article "Origin of Life on Earth" which of the following is a false statement regarding how life developed? A. As proteins are needed for the repli

Hand washing in sterilization process, Q. Hand Washing in sterilization pro...

Q. Hand Washing in sterilization process? Hand washing is considered the single most important measure to reduce the risk of transmitting organisms to patients and HCWs (health

Mollusca, family ,genus, class order , species of mollusca

family ,genus, class order , species of mollusca

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