Source One
"Ecosystems and Biodiversity | Climate Change - Health and Environmental Effects | U.S. EPA." U.S. Environmental Protection Agency. N.p., 8 Sept. 2009. Web. 9 Feb. 2010. http://www.epa.gov/climatechange/effects/eco.html
This article discusses some findings regarding climate change, life's need for the right climate, and how sudden change could be good or bad. It also talks about how future projections on ecosystem loss are not likely to come out accurate because of the quick rate of change giving no precursor or anything to go off of.
Some Quotes:
"Climate is an integral part of ecosystems and organisms have adapted to their regional climate over time. Climate change is a factor that has the potential to alter ecosystems and the many resources and services they provide to each other and to society."
"20 percent to 30 percent of species assessed may be at risk of extinction from climate change impacts within this century if global mean temperatures exceed 2-3 °C (3.6-5.4 °F) relative to pre-industrial levels"
Source Two
" About Climate Change and Biological Diversity." Convention on Biological Diversity. N.p., n.d. Web. 11 Feb. 2010. http://www.cbd.int/climate/about.shtml
This article presents the subject of climate, ecosystems, and biodiversity, presents a problem and why it matters, then finishes it off with things that we need to keep in mind when creating a plan to fix the issue at hand.
Some Quotes:
"According to the Intergovernmental Panel on Climate Change (IPCC) Working Group I (WGI) Fourth Assessment Report, from 1850 to 2005, the average global temperature increased by about 0.76ÂșC and global mean sea level rose by 12 to 22 cm during the last century."
"The present global biota has been affected by fluctuating Pleistocene (last 1.8 million years) concentrations of atmospheric carbon dioxide, temperature, and precipitation, and has coped through evolutionary changes, species plasticity, range movements, and/or the ability to survive in small patches of favourable habitat (refugia)."
"Habitat fragmentation has confined many species to relatively small areas within their previous ranges, resulting in reduced genetic variability. Warming beyond the ceiling of temperatures reached during the Pleistocene will stress ecosystems and their biodiversity far beyond the levels imposed by the global climatic change that occurred in the recent evolutionary past. "
Source Three
Science Daily. "Global Impact Of Climate Change On Biodiversity." Science Daily: News & Articles in Science, Health, Environment & Technology. N.p., 22 Jan. 2009. Web. 11 Feb. 2010. http://www.sciencedaily.com/releases/2009/01/090121091239.htm
This article goes over a survey proving that creatures have already been slowly migrating over the years due to the climate change, and how many others have no where to go. It provides a lot of solid evidence and explains it better than the previous two.
Reflection:
I feel these sources are somewhat reliable. The last one is very good because it shows one study taken over 40 years, showing plenty of progress. The first two are more summations of the issue as a whole. Other than the sources, I feel that I am really driven to do this subject. I love biology, and I am very interested in the process of cloning endangered animals in order to rapidly repopulate the many ecosystems. The whole climate change thing really does effect the biodiversity levels because the more climates change, the more the animals have to change, and sometimes there isn't any room for them to go, leaving them for dead.
Thursday, February 11, 2010
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I think you should elaborate a little more on some of the specific resources you are referring to.
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