Detecting Climate Change Natural Causes of Climate Change ...
Climate Change + Life Histories
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Transcript of Climate Change + Life Histories
Climate Change + Life Histories
Biology 1510
Alejandra Arango, Ashley MedlockRyan Evans, John Durham, Jeremy Carmack
GroupA25
IntroductionWhat we will be discussing.
Cause of climate change
Effect of climate change on arctic marine life
Case study - Apherusa glacialis
Future consequences of climate change
Figure 1:http://www.sciencedaily.com/releases/2012/09/120913173030.htm#.UFOdjtawXDA.twitter
Why is this happening?The cause of climate changeBurning fossil fuels introduced to carbon cycle
Greenhouse effect
Expansion of Hadley Cell
Warming of the poles
Figure 2:http://www.earth-policy.org/indicators/C52/carbon_emissions_2010
Figure 3:http://www.theresilientearth.com/?q=content/wetter-world-during-eocene
What is happening?The effect of climate change on arctic marine lifeIncrease in density gradient
Primary consumers not receiving proper nutrients
Figure 4:http://www.bio.utexas.edu/faculty/sjasper/Bio213/aquahab.html
Case StudyApherusa glacialis
Nemo hypothesis – downward vertical migration
Pelagic phase
Ascend during spring algal bloom
Figure 5.
http://rsbl.royalsocietypublishing.org/content/early/2012/09/04/rsbl.2012.0517.full.pdf
Nemo: http://images.catchsmile.com/wp-content/uploads/2011/04/Nemo.jpg
Impending consequencesHow climate change will affect future marine life.
Restructuring of food web
Escape of methane gas in the atmosphere
Major fishing areas decrease in size
Figure 6http://oceansnorth.org/climate-change
Conclusion.Take home message.
NPP decreases
Species richness declines
Organisms adapt or die Figure 7
http://www.worldatlas.com/webimage/countrys/polar/arctic.gif
ReferencesLiterature Cited.
Langford, William. 2009. Poleward Expansionof Hadley Cells. University of Guelph.
J. Berge et al. 2012. Retention of ice-associated amphipods: possible consequences for an ice-free Arctic Ocean. Biology Letters
Moore, S.E., and H.P. Huntington. 2008. Arctic marine mammals and climate change: impacts and resilience. Ecological Applications