Density dependent factors - population regulation, Biology

Assignment Help:

Density Dependent Factors - Population Regulation

The density dependent factors are intrinsic or biotic factors and they depend on interactions between individuals within same population or populations of different species. Density dependent factors may stabilise the population at the level determined by carrying capacity of the environment. The important density dependent factors are reproductivity, emmigration, competition for resources, predation, parasites, and diseases. The contribution of these factors may vary from species to species.

In large populations the number of offsprings produced are less, thus self-regulating the population size. You have also read how emmigration of individuals from a population reduces its density. Competition can be between individuals of same species called intra specific competition and between individuals of different species called inter specific competition. Generally, members of the same species need same resources and are bound to compete for them. In some bird species males and females have different beak lengths enabling them to feed on different insect prey.


Related Discussions:- Density dependent factors - population regulation

Anti lipid drugs-peri operative problems, Anti Lipid Drugs :  The current ...

Anti Lipid Drugs :  The current thinking is that it is very important to keep lipid levels low. It helps in preventing atherosclerotic changes in venous grafts and the long-term p

Supernumerary or accessory chromosomes, SUPERNUMERARY OR ACCESSORY CHROMOSO...

SUPERNUMERARY OR ACCESSORY CHROMOSOMES Wilson (1905) discovered them in Matapodium insect. Very small Chromosomes present in nucleus in addition to normal number of Chr

What are the physical signs of mitral stenosis, Q. What are the Physical Si...

Q. What are the Physical Signs of mitral stenosis? A typical malar flush is described in mitral stenosis. It is difficult to appreciate in Indians. Pulse is normal or low volum

Characteristics of man, CHARACTERISTIC S OF MAN - Humans posses ere...

CHARACTERISTIC S OF MAN - Humans posses erect posture and bipedal locomotion. Humans possess large sized brain. Humans are less dependent on smell. Humans possess

Define historical example of virulence, Define Historical example of virule...

Define Historical example of virulence? The "classical dogma" of epidemiologists was that pathogens all the time evolve in the direction of lower virulence, eventually becoming

Explain about regenerative therapy, Explain about Regenerative therapy   ...

Explain about Regenerative therapy   Is also used to achieve the above objectives but with the ultimate goal of regeneration of lost bone tissue.

Describe about the detectors used in hplc, Question 1 Explain pharmacokine...

Question 1 Explain pharmacokinetic parameters observed in plasma concentration time curve Question 2 What is Gas Chromatography? Mention the quantitative applications of gas

Automated dna sequencing, Automated DNA sequencing is now common place whic...

Automated DNA sequencing is now common place which is based on the chain termination method but using a fluorescent dye attached to an oligonucleotide primer instead of using radio

Explain fats requirements during thyphoid, Explain fats requirements during...

Explain fats requirements during thyphoid Fats: Use of fats should be in moderation. This is because the typhoid patient has a compromised ability to digest and assimilate due

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