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

What is the reason of post endodontic disease, What is the reason of post e...

What is the reason of post endodontic disease ? Either there is persistent or reintroduce intracanal microorganisms.. that means if I do improper instrumentation, improper clea

Clathrin-coated pits and vesicles, Clathrin-coated pits and vesicles are in...

Clathrin-coated pits and vesicles are included in both the endocytosis   of material   at the plasma membrane and the exocytosis of proteins from the Golgi   apparatus.  Electron

Explain the concept of atoms are associated, What is the logical order in w...

What is the logical order in which the concepts of atoms, molecules, cells... up to biosphere are associated? Atoms form molecules that structure cells that form tissues that f

History of quantitative impacts on biology, Show History of Quantitative Im...

Show History of Quantitative Impacts on Biology Quantitative threads have been woven into the fabric of biology since at least the late 19th century, when Malthus warned of the

Viruses, what are viruses?its history?its life cycle and the diseases cause...

what are viruses?its history?its life cycle and the diseases caused by it?

Determine fluids and electrolyte need at high altitude, Determine the Fluid...

Determine the Fluids and Electrolyte Requirement at high Altitude? In addition to cold induced diuresis, hyperventilation together with a dry environment at HA makes an individ

Explain physical properties of an oil, Explain Physical properties of an oi...

Explain Physical properties of an oil Physical properties of an oil or fat are of critical importance in determining its functional characteristics or use in food products. One

What are nerve function, The major function of the nerve cells of the body ...

The major function of the nerve cells of the body is contact. This is accomplished by passing electrical and chemical messages from neuron to neuron or from neuron to one other goa

What property of the dna fragments permits this separation, DNA can be divi...

DNA can be divide into fragments using restriction enzymes.    (a) Outline the technique used to separate these fragments.    (b) What property of the DNA f

Hypothermia, Hypothermia As the blood passes through the oxygenato...

Hypothermia As the blood passes through the oxygenator, hypothermia machine allows the blood to cool to the required temperature. Generally, the temperature is brought dow

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