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

Human development, Human Development Human development is a continuous...

Human Development Human development is a continuous procedure that begins when the ovum from a female is fertilised via sperm from a male to form the zygote. Growth and differ

Explain assessment of iron status, Explain Assessment of Iron Status? I...

Explain Assessment of Iron Status? In view of widespread iron deficiency, it is important to have reliable and sensitive measures of iron status. Iron status can be assessed by

Advantages and disadvantage of using turbidity measurement, Advantages and ...

Advantages and Disadvantage of using Turbidity Measurement? Advantages 1. It is an easy, rapid and sensitive technique. 2. Turbidity measurement can be done without destr

Hydrocarbons do not readily evaporate at room temperature, The fact that so...

The fact that some pure solutions of hydrocarbons do not readily evaporate at room temperature is a result of- Select one: a. London dispersion forces. b. The hydrophobic

Define vitamins required for underweight - nutritional care, Define Vitamin...

Define Vitamins required for underweight - nutritional care? If the diet provides good amounts of fresh fruits and vegetables, vitamin or mineral supplements are usually not re

What do you mean by primary visual and auditory cortex, Q. What do you mean...

Q. What do you mean by Primary Visual and Auditory Cortex? Primary Visual Cortex - in posterior aspects of occipital lobes.  Receives visual information from optic nerve (crani

Rk, how many chromosomes in human

how many chromosomes in human

Theory of natural selection, What key idea, contained in Malthus's essay on...

What key idea, contained in Malthus's essay on populations, helped Darwin formulate his theory of natural selection?

Pulmonary valvotomy with infundibular resection, Pulmonary Valvotomy with I...

Pulmonary Valvotomy with Infundibular Resection :  Infundibular obstruction in cases of pulmonary valvar stenosis could be primary or secondary. 11' this obstruction is signi

Why does bark often die and break naturally, Why does bark often die and br...

Why does bark often die and break naturally? The bark is the mature periderm of the stem, branches and roots. It dies and breaks when these structures grow and thus the perider

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