Intraspecific and interspecific competition, Biology

Assignment Help:

In the preceding block you learnt the Darwinian premise of natural selection based on certain facts and deductions thereof. You would have noticed that one of the foundations for the concept of natural selection relates to competition among the individuals belonging to the same species - the intraspecific competition. You may also recall that intraspecific competition involves two components - (1) the individuals belonging to the same species compete among themselves for thc same requisites from the eilvironment which results in physical competition, including the competition for mates and the individuals belonging to a species may compete as to which of them leaves behind a major share of descendents in the future populations. The second type of competition is more subtle, by which is meant that individuals do not compete directly or in any physical way. The success of the second type of competition is measured in terms of the survival of offsprings, and therefore alleles in the next generation. You might have by now deduced that the two types of competition are interrelated. Success in the first type of competition known as ecological intraspecific competition is a prerequisite for success in the second type of competition namely reproductive intraspecific competition. It does not mean that ecological success always ensures reproductive success, for ecologically successful individuals may be sterile; but ecological success is always necessary to achieve reproductive success. We may then summarise that intraspecific competition results in adaptations to a given environment and this helps to perpetuate the genotypes of successful individuals generation after generation.


Related Discussions:- Intraspecific and interspecific competition

Explain the pre pregnancy height and foetal outcome, Explain the Pre Pregna...

Explain the Pre Pregnancy Height and Foetal Outcome? Maternal height prior to conception, determined by heredity, socio-economic environment and maternal nutritional status, is

What is fermentation, What is Fermentation ? Fermentation is a process ...

What is Fermentation ? Fermentation is a process used by anaerobic organisms and certain cells of aerobic organisms, such as muscle cells deprived of oxygen, to obtain addition

What is atrial switch operation and rastelli in heart diease, What is Atria...

What is Atrial Switch operation and Rastelli in Heart dieases? Atrial Switch Operation: (Senning or Mustard procedures) By means of a baffle the systemic venous blood could b

What are the pupillary defects, What are the Pupillary defects There ar...

What are the Pupillary defects There are certain deviations  from normal pupillary reflexes which point towards certain specific pathology.

What is p-k reaction, The response produced when an allergen is injected in...

The response produced when an allergen is injected into an individual, who is sensitive is known as P-K reaction.

What do you understand by compound eye, What do you understand by Compound ...

What do you understand by Compound eye? The characteristic eye of the Arthropoda. It comprise many ommatidia, the basic optical unit of compund eye, grouped together to form th

Explain about the net protein ratio (npr), Explain about the Net Protein Ra...

Explain about the Net Protein Ratio (NPR)? This method was introduced by Bender and Doell (1957) and is a modification of the PER method. In this method, an allowance is made f

Describe the term epinephrine, Describe the term Epinephrine? Epinephri...

Describe the term Epinephrine? Epinephrine is administered IV in increments of 1 mg diluted in 10 mls of normal saline (1:10,000). It can be given through the endotracheal tube

Active transport during membranes, Q Which are the molecules that make poss...

Q Which are the molecules that make possible active transport during membranes? Active transport is prepared by specific membrane proteins. These proteins are known as "pumps"

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