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biology prezi

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monica lecce

on 27 February 2013

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Transcript of biology prezi

The Importance of Biodiversity Selina and Monica Moisture and Precipitation Cons Pros In the Arctic In the Ocean Around the Lily Pad Climate change will result in an increase in precipitation.
This is because carbon dioxide from burning fossil fuels accumulates in the atmosphere, trapping heat. This extra heat causes global temperatures to rise, and causes more evaporation from oceans. This evaporation accumulates in the atmosphere for increased precipitation. The Arctic The Arctic, Antarctic and Siberia and other frozen regions of the world my experience more plant growth and milder climates.
The arctic tree line is expected to rise. - Due to climate change our polar icecaps are receding

- Species that will be affected the most from this change will be the polar bear, bowhead whale, and walruses. Amphibians like frogs are said to be the signal of a change in biodiversity
Amphibians are the most sensitive to changes in the environment
In recent years, amphibian species have been declining at an extremely fast rate Pros and Cons of Climate Change
on Biodiversity FROGS DISAPPEARING Anthropogenic induced effects increase in carbon dioxide carbon dioxide gets dissolved into water increase in ocean acidity ocean biodiversity decreases The increase in carbon in the water affects the ability of sea life (plants and animals) to make structures like shells and skeletons that are made of calcium carbonate, due to the fact that when it reacts with carbon it forms carbon dioxide, water and salt. increase in ocean acidity affects marine animals like fish and shell fish which are major contributors to the food chain.
this increase also affects coral which is where most sea creatures' homes are. 30% increase in ocean acidity
2/3 of Switzerland's ice sheet is gone
10-30% of birds, amphibians, reptiles, and mammals have become threatened with extinction because of anthropogenic effects towards climate change. (Millennium Ecosystem Assessment, 2005)
Extinction rates have increased to 1000 times.
Recovery rates will be much slower if extinction stays at this rate. Statistics Survival Species Climate change poses the question, who will survive? At what cost? "In the struggle for survival, the fittest win out at the expense of their rivals because they succeed in adapting themselves best to their environment." Charles Darwin Plant Life Increased agriculture due to increased precipitation leads to more food for plant-eating species.
More carbon dioxide in the air may increased tree growth.
This provides more oxygen in the air for all species and increased wild life habitats.
Decreased moisture in soil will cause more drought-resistant trees and grasslands. Argus butterfly Australian Grey
Nurse Shark Trumpeter Swan Conclusion Introduction LOOK AT THE LIZARD "We should preserve every scrap of biodiversity as priceless while we learn to use it and come to understand what it means to humanity."
-E. O. Wilson It's normal for Earths climate to change over a long period of time. But when it starts to change rapidly, this is when the real danger starts. We, as humans, have only started to realize what we are doing to not only our planet, but the biodiversity in it. Anthropogenic effects are harming biodiversity and we are losing more and more of it every day. On Land increase in temperature can result in droughts which increases the risk of forest fires
forest fires can disturb the population of a type of tree making it more susceptible to extinction
Deforestation of trees for industry reduce the amount of oxygen and increase carbon dioxide in the atmosphere and contributes to habitat loss for animals. forest fires + deforestation = habitat loss and decrease in plant and animal biodiversity Main Points Anthropogenic Factors Affect... Sea Levels Arctic Ice and Animals Ocean Acidity and Life Extinction Rate Rise Land Animals and Plants Global Temperature BIODIVERSITY! Once rare butterfly from the UK is now thriving in warmer temperatures. Thanks to warmer waters around Australia, this species can thrive.
Two separate populations on either sides of the continent may be able to unite for the first time in 100 000 years. This species of swan has made a comeback in Alaska. Longer summers have allowed for a greater opportunity for breeding and raising young. The increase in temperature in the Arctic increases the decomposition of the large quantities of organic materials which are frozen in the Arctic soil. This results in thicker soil production and causes the release of considerable quantities of nitrogen and phosphorus. The increased concentrations of CO cause the increase in the production of plant biomass, which is a result of increased photosynthesis. Biodiversity Thank you for listening to our presentation on the pros and cons of climate change on biodiversity. Climate change is the survival of the fittest.
Animals must adapt to survive, becoming more resilient to different climates.
This adaptation will increase biodiversity across the globe as species are forced to evolve.
Changing migration patterns will diversify the globe. Common frog:
Adaptation to environment The arctic tree line is a transition zone of vegetation that separates the Arctic Tundra from the Forest.
The expanding forest provides more habitat for forest animals. Why is biodiversity important?
Why should we care about global warming? Climate change is a direct response of our human interferences.
There are many pros and cons to consider about climate change, however the cons out weigh the pros.
Us, as a new generation must do all that we can to preserve our earth for our children and future generations.
Biodiversity depends on how we take care of our earth today. The rising global temperatures pose serious threats to everyone, especially those impacted by unbalanced ecosystems. http://www.plantsneedco2.org/default.aspx?menuitemid=325 S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M S.M
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