Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Ecosystem Control
Another important aspect of ecosystem functioning that is how it maintains its ecological balance. By now, it must be obvious to you that an ecosystem is a dynamic system, wherein a lot of events take place. For example, animals eat and in turn are eaten, moisture and nutrients flow in and out of the system, and weathers change. In spite of all these happenings the ecosystems persist and recover from the slight disturbances. This capacity of an ecosystem to self-regulate or self-maintain is called homeostasis. Isn't this ability of ecosystems to recover from certain perturbations remarkable? Let us take a simple example to see that how is this balance maintained in spite of the fight disturbances in the ecosystem.
Consider a grassland, when there is a drought, do not grow well. The mice that eat the grass become malnourished. When this happens, their birth rate decreases. And also the hungry mice retreat to their burrows and sleep. By doing so, they need less food and are less exposed to predators, so their death rates decrease. Their behaviour protects their own population balance as well as that of the grasses which are not being consumed while the mice hibernate. Such a mechanism is known as feedback regulation and is very important to maintain the ecological balance. It is the prime regulatory mechanism for the ecosystem as a whole. You may know that there are several kinds of organisms comprising an ecosystem. So all the organisms in an ecosystem are part of several different feedback loops. A feedback loop may be defined as relationship in which a change in some original rate, alters the rate of direction of further change. In the above example, we had deliberately taken a very small group of living beings that has primarily the mice and the plants.
Q. Definition of Biological diversity? Biological diversity has no single standard definition. One definition holds that biological diversity is a measure of the relative diver
Define about the Classification of polyphenols? The various classes are: a) Phenolic acids and derivatives b) Flavonoids such as Flavonols and Flavones, Isoflavones and
Environment and Health- Impact of Air and Water Pollution Environment includes a host of factors of which air and water are the two major components. Air pollution is caused b
Q. Describe the Non Direct Approach? The counsellor's participation is minimal; here the counsellee freely expresses. The counsellor pays attention to the emotion and attitudes
Advantages and disadvantages of protozoa
When water containing impurities is forced against a filter that allows only water through, this process is called "reverse osmosis". Why is this a good description of what is happ
What is meant by the arch reflex? In some situations the movement of the skeletal striated muscles does not depend upon commands of the superior motor neurons, i.e., it is not
What is the type of digestive system present in beings of the phylum Arthropoda? Are these animals protostomes or deuterostomes? The digestive tube of arthropods is complete, h
With the survival and well-being of humans beings so heavily dependent on biodiversity, its economic value assumes considerable importance. For instance the economic value of ecosy
various parameters which are used in water quality measurement
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd