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

Illustrate the functioning of living systems, How are buffers significant t...

How are buffers significant to the functioning of living systems? By neutralizing small amounts of acid or base that might be added to a solution, buffers keep pH values at nor

Define the effect of niacin deficiency on digestive sysytem, Define the Eff...

Define the Effect of niacin deficiency on Digestive Sysytem? The predominant symptoms are glossitis and diarrhoea. Glossitis, cheilosis and stomatitis may vary from mild rednes

Mounting boxes for insect collections, Mounting boxes for insect collection...

Mounting boxes for insect collections Wood or cardboard cigar boxes make very useful and suitable housings for insect collections. After the insect has been separate from the s

Explain the characterstics of acute ar murmur, Explain the characterstics o...

Explain the characterstics of Acute AR Murmur ? Characteristic: Relatively low pitched, decrescendo diastolic murmur, which may end part way through diastole. These murmurs ar

Irritability, Irritability If a bright torch of light is flashed acros...

Irritability If a bright torch of light is flashed across your eyes, you close your eyes instinctively. The bright light acts as a stimulus (pl, stimuli) and closing your eyes

Explain the recommended dietary allowances - nutrition, Explain the Recomme...

Explain the Recommended Dietary Allowances - Nutrition? RDA: The RDA is the average daily dietary intake that is sufficient to meet the nutrient requirement of nearly all healt

What is a recessive gene, What is a recessive gene? With the birth of a...

What is a recessive gene? With the birth of a child, it gets its genes from both parents. Some genes 'override' other genes. Using hair color as instance: If single parent i

Name the food yersinia enterolytica infection isolated from, Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Determine the Yersin

Explain the occurrence of vitamin C, Explain the Occurrence of Vitamin C ...

Explain the Occurrence of Vitamin C Vitamin C (ascorbic acid) is an active ingredient present in any animal or vegetable cell which occurs in the plant in free form and also bo

Determine the size and organization of chromosome, Some relatively simple e...

Some relatively simple eukaryotes, like the adder's tongue fern, may have many more chromosomes than a more complex eukaryote, like a mammal. What might this suggest about the size

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