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

Nervous system - midbrain, MID BRAIN - Optics lobes 4 in number ( Corpo...

MID BRAIN - Optics lobes 4 in number ( Corpora Quadrizemmini ) in frog corpora bizemmini . Solid, optocoel is absent. 2 superior coculi and 2 inferior coculi are present.

Why is the sun the motor of the water cycle, Q. Why is the sun the "motor" ...

Q. Why is the sun the "motor" of the water cycle? The sun can be considered the motor of the water cycle for the reason that upon its energy the transformation of liquid water

Single vessel disease, Single Vessel Disease (SVD) :  They do well on medi...

Single Vessel Disease (SVD) :  They do well on medical treatment or with angioplasty. However if proximal LAD is significantly blocked and LIMA can be used as a conduit, surgery g

Explain about the smoking - methods of food processing, Explain about the S...

Explain about the Smoking - methods of food processing? Smoking was known as a method of food preservation at an early date. Foods are exposed to smokes by burning some special

Introduction to heart surgery, INTRODUCTION :  It took just hundred years ...

INTRODUCTION :  It took just hundred years for cardiac surgery to advance to what it is today. Before 1896, surgeons considered heart to be "inviolable" and it was stated that ope

Ribosomes in eukaryotic, Q. How dissimilar are the location of ribosomes in...

Q. How dissimilar are the location of ribosomes in eukaryotic and in prokaryotic cells? In eukaryotic cells they can also be found free in cytoplasm and mainly adhered to the e

Agro industrial-molybdenum, Molybdenum Although molybdenum functions as a ...

Molybdenum Although molybdenum functions as a component for the enzymes xanthine oxidase, sulfite oxidase and aldehyde oxidase, requirements for it are not established. Molybdenum

Modern biochemistry and cell physiology, This problem set is a little diffe...

This problem set is a little different, in that it is one large project/problem. To answer it, you must write a short single-spaced typed report of 4-5 pages MAXIMUM. Here is the p

Conduct of perfusion-cardio pulmonary bypass, Conduct of Perfusion :  At t...

Conduct of Perfusion :  At the beginning of the bypass, the pump output is usually kept at 2.4 litres per meter per minute. On coming off bypass, the flow is gradually reduced til

Kingdoms , phlum,class,characteristics of chromalveolata

phlum,class,characteristics of chromalveolata

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