• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Discuss the implications of global climate change in the future for the biogeography of any organism, group of organisms, or ecosystem/biome of your choice.

Extracts from this document...


Discuss the implications of global climate change in the future for the biogeography of any organism, group of organisms, or ecosystem/biome of your choice. Climate change has now been officially recognized as the dominant environmental problem facing the globe. The concept of global change is not a recent idea; it has been around since the mid nineteenth century particularly in the writings of George Perkins Marsh. According to Walker, global change is the net effect of individual and interactive effects of changes in land use, atmospheric composition, biological diversity and climate. Global climate change will alter the structure of the oceans thus having a direct impact on marine ecosystems. Recent research conducted by the Intergovernmental Panel on Climate Change has indicated that sea levels, ocean temperature and the overall chemistry of the oceans is changing as well as the frequency and intensity of ocean storms. Massive carbon dioxide emissions into the atmosphere adversely impacts both the chemical and biological processes in oceans which in conjunction with overall ...read more.


These processes are strongly influenced by climatic factors which alter ocean currents and circulation which subsequently affects ph balances and overall oceanic temperatures. The total amount of carbon in the world's oceans is approximately fifty times greater than the amount in the atmosphere. The high solubility of the world's oceans means that they form a major sink for anthropogenic carbon dioxide (Prentice et al). Carbon dioxide solubility is very dependent on temperature. Net cooling tends to drive carbon dioxide uptake whereas net warming tends to drive outgassing (Prentice et al). Effects on marine organisms and ecosystems These changes have varying effects on the abiotic and biological functioning of many marine organisms. There is already widespread evidence of the destruction that both natural and anthropogenic climate change is having on marine ecosystems which can be seen in the rapidly diminishing global fish yields and large-scale reductions in coral reef sizes. ...read more.


Increased oceanic acidification also negatively affects the growth of coral reefs and other marine organisms and communities. A similar process to the dissolution of carbon dioxide in sea water occurs in marine organisms, carbon dioxide diffuses through the cell membranes into the blood which disturbs the natural acid-base balance within the organism. The organism therefore has to account for these disturbances and attempt to compensate, however, this ability varies and depends on the genetically determined efficiency of various mechanisms of pH and ion regulation within the organsim (). Despite this, these alterations within the tissue fluid and blood have permanent repercussions for organisms which subsequently affects growth rates, reproductive capacity and in some cases, survival. The current levels of oceanic carbonic dioxide and the rate of increase is the highest ever recorded in the evolutionary history of the past twenty million years. Therefore, it is difficult to ascertain as to how effectively marine fauna can adapt to such an increase over extended periods of time (Lehrnkoster). ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Environmental Management section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Environmental Management essays

  1. Managing change by managing risk

    Without a substantial number of these folks on board, the change will fail. They are pragmatists who want a proven, workable version of the change, complete with a 'how to' manual. Because they are pragmatists, they don't necessarily talk the language of the Innovators and Early Adopters.

  2. Free essay

    The Human and Physical Causes of Climate Change

    When sulphur and ash is spurted out the vent during the eruption, they rise high into the atmosphere and reflect heat from the sun, having a cooling effect. Furthermore, the dust from volcanic eruptions creates a layer, shading parts of the earth which could result in a decrease in global temperatures within the next 5 years.

  1. Ecosystems at Risk - the Great Barrier Reef

    Effectiveness Renewable energy is a clean source of energy but is costly at commercial prices (approximately $18,000 for 18 solar panels installed on your house) and is costly and wholesale prices. On a large scale, it would be a very costly investment and as it depends on the weather conditions

  2. Notes on Managing Climate Change.

    In the UK, car tax is priced by carbon emissions. o Tax band B e.g. Vauxhall Corsa 1.0 litre = �35 o Tax band D e.g. ford focus 1.6 litre = �145 o Tax band G e.g. BMW 550 4.8 litre = �400 Choosing to drive a larger car costs more, as it pollutes more.

  1. Climate Change, sea level rises and engineering Hull for the future. In areas ...

    Ice core analysis which is studied by drilling ice cores from areas such as Antarctica and Greenland, " the carbon dioxide trapped within the ice is a climate indicator"(Redfern D, Skinner M, 2003, Advanced Geography, Chapter 9, Oxfordshire,p202-203) where CO2 levels tend to be lower during cooler periods and tend to be higher during warmer periods.

  2. Free essay

    Theory of Climate change

    future because at present 45% of the population is under 15 years of age. In the North the population growth is slowing down because children are considered an expense. In Italy, Germany and Austria, the growth rate is negative. The slowdown in population growth is a result of the lower

  1. Climate change

    The world's first commercial wave power generator is on Islay, in the Western Isles of Scotland. There are plans for a harbour wall wave power scheme on Lewis.

  2. Free essay

    Biology Group 4 Project

    the surface, this also indicates that the waters were barely polluted as for if they were, wildlife would not be present. In the case of nitrates and nitrites, if there is a large amount of them in the location, it means that there is large amount of organic waste present.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work