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

Hindbrain - cerebellum, HIND BRAIN - 1 .       CEREBELLUM - Li...

HIND BRAIN - 1 .       CEREBELLUM - Little part, lies below the posterior part of cerebrum & above the medulla oblongeta. It conists of median lobe vermis & 2 lat

Self help group - psychoactive substance use disorders, Self Help Group: ...

Self Help Group: The first and perhaps the most influential of substance abuse rehabilitation is Self Help Group. The self help programme was founded in 1935 by two men, Dr. B

Transpiration, Most of the water taken up by a plant passes through it and ...

Most of the water taken up by a plant passes through it and is evaporated to the atmosphere.What use is made of the tiny fraction of this water which is retained by the plant?

CRUSTACEA, Respiratory system of Crustacea ?

Respiratory system of Crustacea ?

What are the habits effect on implant, Habits: Any abnormal habits need...

Habits: Any abnormal habits needs to be identified. Following habits may have detrimental effect on the implant: 1. Parafunction -  Bruxism/ Clenching 2. Tongue Thrusting

How does phosphocreatine act in the muscle relaxation, Q. How does phosphoc...

Q. How does phosphocreatine act in the muscle relaxation and contraction? Phosphocreatine is the major means of energy storage of the muscle cells. During relaxed periods AT

Adrenal glands, Adrenal glands There are two adrenal glands one each...

Adrenal glands There are two adrenal glands one each on the top of each kidney. Adrenal gland has two parts, the outer cortex and inner medulla. Both cortex and medull

Which phase of the menstrual cycle does nidation occur, Q. What is nidation...

Q. What is nidation? In which phase of the menstrual cycle does nidation occur? Nidation is the implantantion of the embryo in the uterus and Nidation takes place around the 7t

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