Density independent factors, Biology

Assignment Help:

Density Independent Factors

Density independent factors are the extrinsic factors which tend to regulate the density of a population in ways that are not correlated with its density. Environmental factors such as bad weather and scarcity of space, pollution etc. are some factors. A hurricane, a severe winter, or a drought may kill most of the individuals in a population irrespective of its density.

In a bad weather only some individuals may be able to shelter from it; if the number of shelters is limited. Thus only a fraction of a large population will be protected. However, we cannot pinpoint one or two factors and say that they determine the size of a particular population. Often the sizes of natural populations are affected by many different factors whose interactions can be complex.


Related Discussions:- Density independent factors

Evolution conditions, What are the five conditons that can cause evolution ...

What are the five conditons that can cause evolution to take place?

Human respiratory system - bronchioles, BRONCHUS - In thorax trachea is...

BRONCHUS - In thorax trachea is devided in to 2 bronchi that enter into lungs of its own side. Rings present in it. BRONCHIOLES - These are branches of bronchus.

Explain the goal of bcc for a diabetic patient, The overall goal of BCC pro...

The overall goal of BCC programs for diabetes mellitus is to promote behaviors that control diabetes mellitus and prevent complications. These include: Following treatment

Why plants need to do exchange gases with the environment, Why plants need ...

Why plants need to do exchange gases with the environment? The Plants need to do gas exchange because they create aerobic cellular respiration (like animals) and they need to r

Define drug effects on food intake - cause dry mouth, Define drug effects o...

Define drug effects on food intake - cause dry mouth? cause dry mouth (xerostomia) : Lack of saliva makes it difficult to masticate and swallow foods, especially those of a dry

Acrodynamics, ACRODYNAM IC S Division of air in lungs. Measured by sp...

ACRODYNAM IC S Division of air in lungs. Measured by spirometer. 1. Tidal Air (T.A.): Quantity of air taken in or given out in a breath 500 cc. 2. Inspiratory Reserv

Is gene a triplet of consecutive dna nucleotides, Is gene a triplet of cons...

Is gene a triplet of consecutive DNA nucleotides A gene isn't a triplet of DNA nucleotides with their respective nitrogen-containing bases, like CGT or AAG. The nucleotide trip

Sense organs, difference between optic nerve and auditory nerve

difference between optic nerve and auditory nerve

In how many categories nutrients are divided, In how many categories nutrie...

In how many categories nutrients are divided? The nutrients are grouped into three categories: 1) Energy Yielding: Carbohydrates and fats produce energy in the body. 2) B

Provide the definition of health care, Provide the Definition of Health Car...

Provide the Definition of Health Care? Health care involves much more than just medical care and can be defined as "multitude of services provided to individuals or communities

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