Ecosystem balance, Biology

Assignment Help:

Ecosystem Balance

We take up, another parameter of ecosystem balance. One factor that affects the stability or persistence of some ecosystems under small or moderate environmental stress is species diversity - the number of species and their relative abundance in a given ecosystem. High species diversity tends to increase long-term persistence of the ecosystem.

It is because with so many different species and the linkages between them, risk is spread more widely. An ecosystem having a good variety of species has more ways available to respond to most environmental stresses. For example, the loss or drastic reduction of one species in an ecosystem, with complex food web usually does not threaten the existence of others, because most consumers have several alternative food supplies. In contrast, the highly specialised agricultural ecosystem, planted with only one type of crop such as wheat or rice is highly vulnerable to destruction from a single plant disease or insects. Therefore, the essence of the whole discussion is that most balanced ecosystems contain many different species.


Related Discussions:- Ecosystem balance

Isomerisms types of unsaturated fatty acids, Unsaturated fatty acids show ...

Unsaturated fatty acids show different types of  isomerisms. We have already learnt about the.concept of  isomerism  in  the  last unit. You would  realize that fatty acids with s

Define needs of fluid in postoperative nutritional care, Define Requirement...

Define Requirements of Fluid in Postoperative Nutritional Care Extensive fluid losses may occur through vomiting, haemorrhage, diesis, excudate, fever and sweating after a surg

What is the nucleolus, What is the nucleolus? The nucleolus is a small ...

What is the nucleolus? The nucleolus is a small and optically dense region in the interior of the cell nucleus. It is made of ribosomic RNA (rRNA) and proteins. Single nucleus

What is aprecise diagnosis, Q. What is Aprecise diagnosis? Aprecise dia...

Q. What is Aprecise diagnosis? Aprecise diagnosis is necessary to establish the mode of therapy. Patients with initial blood phenylketonuria level of 121 m moll1 (> 2 mg/dl) sh

Define species of biological species concept, Define species according to t...

Define species according to the biological species concept. What two problems often make this definition impractical?

Locomotion in arthropoda, Locomotion in Arthropoda The Arthropods are...

Locomotion in Arthropoda The Arthropods are characterized by the existence of some special features which can be considered key to their success. These involve a rigid exoske

Do all vascular plants develop annual rings, Do all vascular plants develop...

Do all vascular plants develop annual rings? Vascular plants are those, which have phloem and xylem structures within them to transport water and nutrients around the plant. Mo

Zoology, classification mollusca

classification mollusca

Explain theory of gram staining of bacterial cultures, Explain Theory or Pr...

Explain Theory or Principle of Gram Staining of Bacterial Cultures? Foods are rich in various nutrients and can support the growth and survival of microorganisms. The microbial

Explain the quantitative techniques - microbial culture, Explain the Quanti...

Explain the Quantitative Techniques? Now that we are well-versed with the techniques involved in preparing and maintaining cultures, it is also important for us to learn how to

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