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

How to predict that a decrease in co2, Jennifer has the "stomach flu" that ...

Jennifer has the "stomach flu" that is going around campus and has been vomiting profusely for the past 24 hours. Not only has she been unable to keep down fluids or food but she h

What is oxygen-haemoglobin dissociation curve, What is oxygen-haemoglobin d...

What is oxygen-haemoglobin dissociation curve? Explain the role of red blood cells in the transport of oxygen and carbon dioxide by blood. Briefly describe the principle, pr

Explain what is mortality in coronaw artery disease, Explain what is Mortal...

Explain what is Mortality in coronaw artery disease ? Marked prematurity and extensive atherosclerosis leads to markedly higher mortality in young Asian Indians compared to oth

Define the patient care related to neurological disorder, Define the patien...

Define the patient care related to neurological disorder? A few additional points related to the patient care that need to be kept in mind include paying attention to the patie

Types of tissue have the greatest capacity to regenerate, Q. Which types of...

Q. Which types of tissue have the greatest capacity to regenerate? Epithelial and connective tissues have the greatest capacity to regenerate. In injuries andsmall wounds, epit

What is molecular formula of the compound, A solid compound was found to co...

A solid compound was found to contain 42.11% C, 51.46%O and 6.43% H by weight. The molecular weight of the compound was 341. What is the molecular formula of the compound?

Determine the horner ''s pupil disease, Determine the Horner 's Pupil disea...

Determine the Horner 's Pupil disease Homer's syndrome occurs because of ipsilateral interruption of the sympathetic outflow to the head and neck. It can result from lesions an

Explain the dietary fibre and colon cancer, Explain the Dietary fibre and c...

Explain the Dietary fibre and colon cancer? The relationship between colorectal cancer and dietary fibre remains complex. Although a cause-and-effect relationship between fibre

What is the vector of chagas disease, What is the vector of Chagas' disease...

What is the vector of Chagas' disease? How is the disease transmitted? The vector of Chagas' disease is its middle host, a triatomine bug. The major species is Triatoma infesta

Theories of origin of life, what we the strengths and weaknesses of pangene...

what we the strengths and weaknesses of pangenesis theory

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