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

Newton, meaning of the law of inertia

meaning of the law of inertia

Illustrate the interphase, Q. Is the cell division happening during the ent...

Q. Is the cell division happening during the entire cell cycle? What is the interphase? Cell division properly occurs throughout the mitotic phase of the cell cycle. During int

Explain genotypical and phenotypical forms, In the F2 generation of hybridi...

In the F2 generation of hybridization for a given trait conditioned by a pair of alleles T and t, according to Mendel's first law what are the genotypes of each phenotypical form?

In dental traumatology-Pulp Tissue revascularization, In Dental Traumatolog...

In Dental Traumatology Traumatic injuries in young kids (8 to 14 years old male > female)  are commonly nowadays. Dental traumatic injuries are mostly in anterior teeth

Obelia, economic importance

economic importance

Agriculture, what''s a mature female sheep called

what''s a mature female sheep called

Knock-out experiment, Knock-out experiment  is a method for deleting, mutat...

Knock-out experiment  is a method for deleting, mutating or otherwise inactivating the gene in a mouse. This laborious technique involves transfecting a crippled gene into cultured

What do you mean by hypertension, Q. What do you mean by Hypertension? ...

Q. What do you mean by Hypertension? Hypertension is one of the major risk factors for cardiovascular disease. It is the most common public health problem and often referred to

Regulation of senescence, Regulation of Senescence Senescence is a par...

Regulation of Senescence Senescence is a part of a developmental sequence of events and has to be a controlled process. You must have seen that if you cut twigs having leaves

Explain about the antioxidant activity of sugar, Explain about the Antioxid...

Explain about the Antioxidant Activity of Sugar? Several carbohydrates are tremendous scavengers for metal ions. Glucose, fructose and sugar alcohols (sorbitol and mannitol) ha

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