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 starch gelatinization, Starch gelatinization Undamaged starch ...

Starch gelatinization Undamaged starch granules are insoluble in cold water but can imbibe water  reversibly i.e. they can swell slightly and then return to their original siz

Explain the magnesium deficiency and toxicity, Explain the Magnesium Defici...

Explain the Magnesium Deficiency and Toxicity? Deficiency of magnesium is rare for two reasons: frstly, the mineral is widely distributed in the foods, secondly, kidney is able

Explain clinical dietetics and diet therapy, Explain Clinical dietetics and...

Explain Clinical dietetics and Diet therapy Clinical dietetics  :  The application of  dietetics  in a hospital or health care institutional  setting. Diet therapy  :

Epithelial cells of the kidney proximal tubule, Which of the following is t...

Which of the following is true for the epithelial cells of the kidney proximal tubule? A. The sodium-glucose co-transporter in the luminal membrane is responsible for the net f

Explain about the nucleoproteins, Explain about the Nucleoproteins? Nuc...

Explain about the Nucleoproteins? Nucleoproteins are combinations of nucleic acids land simple proteins, which usually consists of a large number of basic amino acids. Nucleopr

Is nitrogen is important plant nutrients, Is nitrogen is important plant nu...

Is nitrogen is important plant nutrients Nitrogen is an important plant nutrient which is assimilated by most of the plants as nitrate and ammonium ions. Organic matter is the

Describe any three adaptations of mangroves, Name and describe any three ad...

Name and describe any three adaptations of mangroves to the conditions prevailing in the Sunderbans.

To show the respiration of a plant, To show the respiration of a plant ...

To show the respiration of a plant Place the plant in a test tube held in a weighted wooden block. Put this in a bowl having lime water and cover the plant with a jar. Keep the

Rigs pattern - types of nursing units, Rigs Pattern: The nursing unit ...

Rigs Pattern: The nursing unit has been divided into small cubicles for 1,2,4  and 6 beds.  The beds are arranged parallel to the  longitudinal wall.  The pattern was first bu

Define functions of selenium in humans, Define Functions of selenium in hum...

Define Functions of selenium in humans? Until recently, the only known metabolic role of selenium in humans was as a component of glutathione peroxidase which along with vitami

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