Density dependent factors - population regulation, Biology

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.

Posted Date: 1/21/2013 1:22:16 AM | Location : United States







Related Discussions:- Density dependent factors - population regulation, Assignment Help, Ask Question on Density dependent factors - population regulation, Get Answer, Expert's Help, Density dependent factors - population regulation Discussions

Write discussion on Density dependent factors - population regulation
Your posts are moderated
Related Questions
Which one of the following kinds of animals are triploblastic? 1. Flat worms 2. Sponges 3. Ctenophores 4. Corals Flat worms

Q What is the mass transportation across the cell membrane? Mass transportation is the exiting or the entrance of substances in or from the cell engulfed by portions of membran

The diet of a MSUD patient (child) should therefore involve: • Measured quantities of natural protein or leucine from foods. • A BCAA free protein, vitamin and mineral supp

Contagious caprine pleuropneumonia (CCPP) Mycoplasma mycoides subsp. capri (Mmc) is the main causative agent of caprine pleuropneumonia, a serious malady of goats in our countr

Q. How do the availability of water and light and the climate affect the growth of a population? The availability of light and water and the climate are abiotic factors that li

Explain about the Lactation Process? Lactation is a physiologic process which has profound relevance for both the mother and the newborn. It is the period following pregnancy w

Describe Pulsation in cardian examination? 1) Apex impulse; lowest and outermost point of definite cardiac pulsation. 2) Prominent pulsations in left parasternal region suggest

Q. Explain causes of Shigellosis? Shigellosis is caused by the genus Shigella and is a common enteric (intestinal) infection. The genus has four serological groups,


In what way do chlorofluorocarbons (CFCs) cause global problems? Chlorofluorocarbons react with and deplete the ozone in the ozone layer. This permits more ultra-violet light f