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

What are holandric genes, What are holandric genes? Holandric genes are...

What are holandric genes? Holandric genes are genes situated in the nonhomologous region of the Y chromosome. Holandric genes condition phenotypes that emerge only in men as in

Explain the distant osteogenesis, Explain the Distant Osteogenesis In t...

Explain the Distant Osteogenesis In this an extracellular matrix establishes the implant surface contact. The osteogenic cells line the host bone surface. The blood supply to t

Fructose does not have an aldehyde group, first of all  bonds of fructose ...

first of all  bonds of fructose was breaked by fehling solution then fructose coverted to aldehydic group then that is react with fehlings solution.

Explain taxonomy - modern trends in animal taxonomy, Explain Taxonomy - Mod...

Explain Taxonomy - Modern Trends in Animal Taxonomy The term taxonomy which is derived from the Greek word 'taxis', meaning order or arrangement and nbmos ' meaning law, deals

Supply of animals in lab, Supply of Animals: Lab animals must be obtained ...

Supply of Animals: Lab animals must be obtained from accredited dealers and by accredited dealers, we mean suppliers in the business of supplying animals for lab use, and not from

What is the meaning of reitan''s program, What is the meaning of Reitan's p...

What is the meaning of Reitan's program Reitan's program can be conceptualised as an effort to demonstrate the usefulness nad accuracy of Halstead's tests and related procedure

Arthropod classes characterized to the body division, Q. How are the three ...

Q. How are the three major arthropod classes characterized according to the body division? In arachnids and crustaceans the head is fused with the thorax forming the cephalotho

Explain about harvesting autogenous bone grafts, What are the precautions t...

What are the precautions to be taken when harvesting autogenous bone grafts from mandibular symphysis and ramus? When harvesting grafts from the mandibular symphysis region, fo

Define the term parasite -giardia, Normal 0 false false fal...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Determine the types of cell, Determine the types of Cell Based OII the ...

Determine the types of Cell Based OII the degree of complexity of the cell organisation, two types of cells, namely, prokaryotes and eukaryotes, are recognised. The prokaryotic

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