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 amylopectin, Amylopectin Amylopectin forms a branched structure...

Amylopectin Amylopectin forms a branched structure with about 30 glucose units in a chain among branches. There are usually slightly more  'outer' unbranched chains (called A-c

Sociability - qualitative characters, Sociability (Gregariousness) Soc...

Sociability (Gregariousness) Sociability refers to the nature of grouping of individual plants, that is, whether they grow singly, in patches, in colonies or evenly intermixed

Chest complications-peri operative problems, Chest Complications : Many of...

Chest Complications : Many of the patients undergoing coronary artery bypass surgery have risk factors for post-operative lung complications. These include old age, chronic obstru

Bovine rotavirus diarrhoea, B o v i ne rotavirus diarrhoea The bovi...

B o v i ne rotavirus diarrhoea The bovine rotavirus is a RNA virus with 11 segments of double stranded RNA belonging to the genus Rotavirus in the family Reoviridae. Rotavi

Pyruvate carboxylase activation, Oxaloacetate has two main roles. It is an ...

Oxaloacetate has two main roles. It is an intermediate which is consumed in gluconeogenesis and it is also a key intermediate in the citric acid cycle where it fuses with acetyl Co

Explain uristix benedicts test, Q. Explain Uristix Benedicts test? No s...

Q. Explain Uristix Benedicts test? No sugar/glucose is excreted in the urine in normal individuals. In diabetics, glucose is excreted by the kidneys when the blood sugar levels

Epithelial tissue, conclusion for epithelial tissue when finish experiment?...

conclusion for epithelial tissue when finish experiment?

Photolithoautotrophs - nutritional types of microorganisms, Explain Photoli...

Explain Photolithoautotrophs - Nutritional Types of Microorganisms? These microorganisms use light as an energy source, inorganic substance as electron source and CO 2 as the

Define biomaterial and an implant, Define biomaterial and an implant and st...

Define biomaterial and an implant and state their role in general Biomaterial : A pharmacologically inert material that is capable of interacting with a living organism witho

Extravascular compression, Most of the coronary blood flow to the left vent...

Most of the coronary blood flow to the left ventricular myocardium occurs during diastole. Thus the contracting heart obstructs its own blood supply. The systolic compressive force

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