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
By now you know that diabetes cannot be cured but can be treated so that an individual leads a normal life. Patients who maintain their blood glucose levels within the normal range

Q. What are active and passive immunization? According to the duration of the protection how do these types of immunization differ? Active immunization is that in which an anti

What is a phenotype? A phenotype is each observable characteristic of a living being conditioned by its genes. Some phenotypes may be changed by nongenetic factors (for instanc

Inhibition Model - Models of Succession According to this model, succession is very heterogenous because the development at any one site depends on who gets there first. Speci

Diet :  Pre-operatively, patients are on low calorie, low fat diet. However in the immediate post-operative period, strict dieting is not advisable. They need good nutrition for p

Determine the purpose of  the study: There must be  a sound  rationale  or justification for every research project.  If  the pui-pose of  the  study is clearly presented and just

Which of the following serves as an effector, or part of an effector, that functions in a negative feedback system? A. 1,25-dihydroxyvitamin D Receptors located intracellularly

Which is the type of gamete (for a given trait) produced by a dominant homozygous individual? What is the genotypical proportion of these gametes? What about a recessive homozygous

Define Phosphorous distribution in plasma? In plasma, phosphorus is distributed in different forms. Figure: Phosphorous distribution in plasma Inorg

Tasks of  Orientation Phase: Establishing contact with the patient  Developing  the pactlcontract  Talking to the patient  Establishing Contact with the Patient