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

Physiological adaptation of parasites for infectioness, physiological adapt...

physiological adaptation of parasites for infectiousness?

Introduction to ecosystem, The terms ecosystem was introduction by Sir Arth...

The terms ecosystem was introduction by Sir Arthur tensely in 1935. An ecosystem can be defined s " a structural and function unit of biosphere consisting of living organisms and t

Explain the stages in taxonomic procedures - gamma taxonomy, Explain the st...

Explain the stages in taxonomic procedures - Gamma Taxonomy This phase of taxonomy is also called biological taxonomy and is concerned with the study of speciation. It is inclu

Aortic and pulmonary orifices, These circular orifices are located at the u...

These circular orifices are located at the upper ends of the outflow parts of the left and right ventricles respectively. The pulmonary orifice which is 3 cms, is 0.5 cm larger tha

What to do to speed up the reaction, Sucrose, or table sugar, can react wit...

Sucrose, or table sugar, can react with water to produce two other compounds, glucose and fructose. Though, when you add sugar to a glass of water, this reaction proceeds ext

The oxidative phase generates nadph, 1)  The oxidative phase  generates N...

1)  The oxidative phase  generates NADPH The oxidative branch of  the pathway  generates NADPH  and pentose-5-phosphate, through the following  reactions: a)  Glucose-6-pho

Plants of the open water zone, Plants of the open water zone In this z...

Plants of the open water zone In this zone plants are restricted to the limnetic one and generally consist of phytoplankton such as dinoflagellates, blue green algae and green

Define the redia larva - platyhelminthes, Define the Redia Larva? Redia...

Define the Redia Larva? Redia is the third larval stage in the life cycle of F. heputicn. Redia develops from the germ cell Is of the sporocyst and comes out of the sporoc

What is st elevation in leads without q-wave, Q. What is ST Elevation in Le...

Q. What is ST Elevation in Leads without Q-Wave? ST elevation in leads without Q-waves can occur in few very different situations, both of which are fairly uncommon. The first

Diabetes mellitus in the world, Diabetes Mellitus in the World As per t...

Diabetes Mellitus in the World As per the International Diabetes Federation Directory, in 1994 the global burden of the disease was estimated at 110 million. These cases will i

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