Ecosystem balance, Biology

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.

Posted Date: 1/19/2013 1:44:08 AM | Location : United States







Related Discussions:- Ecosystem balance, Assignment Help, Ask Question on Ecosystem balance, Get Answer, Expert's Help, Ecosystem balance Discussions

Write discussion on Ecosystem balance
Your posts are moderated
Related Questions
State the Definition of respiration Respiration is an act of breathing. (i.e. rise and fall of the chest).  Respiration hastwo parts i.e. inhalation and exhalation. When we bre

Explain Atrial Switch Operation ? The hospital mortality reported varies between 0 and 15 per cent. Late survival is worse for TGA with VSD compared to simple TGA. 15 year surv

The enzyme in the TCA cycle that catalyzes a substrate level phosphorylation is -citrate dehydrogenase -succinate thiokinase -isocitrate dehydrogenase

Once the decision has been made to retain the tooth there are two ways for ttt: •     Non surgical retreatment :             -  guided access to apex via coronal access

Explain about the Reproduction in Fungi? Fungi, we have seen above, reproduce both sexually and asexually. Asexual mode of reproduction include budding, binary fission and more


Pre-conditions for GTT You are advised to carry out the GTT (OGTT) test to confirm a diagnosis of diabetes mellitus for a person with: a) The history of glycosuria (glucose

put the following events in the most probable order. A. Dead algae decomposed by bacteria B.excess nitrate and phosphate discharge into rivers C. Fish die of suffocation D.bacteria

Define Modelling the evolution of correlated characters? Current discoveries in genomics and proteomics have illustrated that the link between genotype and phenotype is much mo

What are the main interspecific ecological interactions? The major harmonious interspecific ecological interactions are: protocooperation, mutualism and commensalism. The major