Quantitative characters - population density, Biology

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.
Posted Date: 1/19/2013 7:44:53 AM | Location : United States







Related Discussions:- Quantitative characters - population density, Assignment Help, Ask Question on Quantitative characters - population density, Get Answer, Expert's Help, Quantitative characters - population density Discussions

Write discussion on Quantitative characters - population density
Your posts are moderated
Related Questions
Explain about Diabetes mellitus Diabetes mellitus (DM) has relation with all the systems of our body. With some systems it has direct relationship, while with others it has in

1. In modern blimps, the gas of choice used to inflate them is helium rather than hydrogen. Hydrogen would be lighter, but helium is safer. Compare and contrast the atomic structur

Q. List the goals of management of Type 1 Diabetes Mellitus? Goals of management of Type 1 Diabetes Mellitus: a) to keep blood sugar level as close to normal as possible.

Define Initial Phase for nutritional treatment of neuro trauma patients? In this, the life threatening conditions need to be controlled first.  Soon the nutritional support mu


Define Nutritional and metabolic factors that contribute to the malnutrition of CHD? Nutritional and metabolic factors that contribute to the malnutrition of CHD infant are ele

Osseointegration Vs. Biointegration In 1985, dePutter observed that there are two ways of implant anchorage or retention: mechanical and bioactive. Mechanical retention refers

Why Neuron A is a healthy neuron Neuron A is a healthy neuron with all the usual ion channels.  When at rest with a membrane voltage of R millivolts, neuron A produces no acti

Is it more indicated for a geneticist desiring to map the X chromosome of the mother of a given family (the researcher does not have access to her DNA, only access to the genetic m

Define Factors affecting Absorption of Dietary Iron? There are mainly four factors that determine iron bioavailability absorption from the diet. These include: i) Form of ir