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

Disorder of adrenal function, Disorder  of Adrenal Function: The diso...

Disorder  of Adrenal Function: The disorders of  adrenal function may lead  to acute and chronic  .adrenocortical insufficiency. Let  us briefly  describe each  one as follows

Define the obesity in children, Define the Obesity in Children? It is d...

Define the Obesity in Children? It is difficult to measure overweight or obesity in children and adolescents because they grow and mature at different rates. Weight status in c

Electro magnetic radiation, Electro magnetic radiation Light is one ...

Electro magnetic radiation Light is one form of energy. The light rays consist of tiny particles called photons. The energy carried by photon is called quantum. Light

Amino acids, An amino acid is amphiprotic (have both acid and base)  ...

An amino acid is amphiprotic (have both acid and base)              o    Some are polar, non polar, acidic or basic List of amino acids (red are non-polar, yellow are

Determine some methods of blood glucose estimation, Determine some Methods ...

Determine some Methods of Blood Glucose Estimation? The various types of methods for estimation of blood glucose can be grouped under two groups: a) Chemical methods b) E

Which functional groups cannot react with each other, Which of the followin...

Which of the following pairs of functional groups CANNOT react with each other by a dehydration reaction? Select one: a. Carboxyl;Hydroxyl b. Carboxyl;Sulfhydryl c. Pho

State the list of behavioural observations, State the list of Behavioural O...

State the list of Behavioural Observations A typical list of domains would include the following: Mood and affect Motivation and cooperation Social interaction

Nutrition in organisms, a project on different types of heterotrophic mode ...

a project on different types of heterotrophic mode of nutrition in organisms

Nutrition, how do carnivorous feed

how do carnivorous feed

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