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

Define about the sporocyst larva, Define about the Sporocyst Larva? Sp...

Define about the Sporocyst Larva? Sporocyst is the second larval stage in the life cycle of F. hepatica. It develops from the miracidium larva within the pulmonary chamber of

What are protozoans? explain their functions, Protozoans are microscopic in...

Protozoans are microscopic in size however some are large enough to be seen with naked eye. Microscopic organisms such as these have numerous advantages, one of which is that they

Effects of marasmus on a child, Marasmus is a disease due to the deficiency...

Marasmus is a disease due to the deficiency of both proteins and calories.The child is weaned out before one year of age and is given a diet low in both proteins and carbohydrates.

The genetic code is a triplet code, In During translation, the series of an...

In During translation, the series of an mRNA molecule is examined from its 5' end by ribosomes that then synthesize an appropriate polypeptide. Together in prokaryotes and in eukar

Contra indication in circulatory assist devices, Contra Indication :  It i...

Contra Indication :  It is absolutely contra indicated if their is more than trivial aortic regurgitation. Aortic aneurysm and severe aorto iliac disease are also contra indicatio

Main moral problem about the cloning of human individuals, What is the main...

What is the main moral problem about the cloning of human individuals? As well biological perils, a very serious moral problem involves the nucleus transplantation technology c

What are some factors that can lead to protein denaturation, What are some ...

What are some factors that can lead to protein denaturation? Protein denaturation can be caused by temperature variation, pH change, alters in the concentration of surrounding

Electronic chip is implanted in the body – vivo and vivo, An electronic chi...

An electronic chip is to be implanted in the body. During in vitro (in the lab) testing it is observed that the chip will dissolve over time if exposed to liquid with similar pH to

How emulsion are formed, How emulsion are formed The most common method...

How emulsion are formed The most common method of preparing an emulsion is by mechanically dispersing one liquid phase in another by formation of small droplets. This takes pla

What is cerebral hemorrhage, What is Cerebral Hemorrhage Cerebral hemor...

What is Cerebral Hemorrhage Cerebral hemorrhage is a massive bleeding into the substance of the brain. The most frequent cause is high blood pressure, or hypertension. Other ca

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