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Benign Biogeography
The study of the distribution of biodiversity over space and time. It aims to reveal
where organisms live, and at what abundance.
Arthur Baney, Lindsey Pedroncelli,
Tiffany Blanton, Husna Hadi
Evolution
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Adaptive change over long time periods
Only best adapted to environment survive
Survivors pass on genes to offspring
Next generation slightly better than last
Microevolution!
yay!
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slow evolution resulting in gene change
little genetic changes being new subspecies
slight evolutionary change in little time
lots of microevolution results in macroevolution
Microevolution
-Examples-
• cold weather, larger birds in North
• warm weather, smaller birds in South
• natural selection, pesticide, herbicide, antibiotic
resistence
• difference of species' color or size
What is Biogeography?
• Separated animals gradually change to adapt
• Evolve differently to suit different environments
• Example of
catalysts:
climate, food,
predators
• Can trace
ancestors by
circling area
Macroevolution
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A grand scale of evolutionary change.
Artemia (Brine Shrimp) had many legs.
Various Marsupials don't reside in Australia.
Species of Finches in Galapagos Islands.
Darwin's Finches
• Galapagos Finches
differ slightly from
mainland
• Adapated to survive
in different
environments
• When isolated, the
finches evolve
separately
• Can trace ancestory
back to mainland
What is a Molecular Record?
• Record of molecular structures of
everything.
• Part of a chromosome that isn't perfect.
• Same pseudogene in same chromosomal location.
• Provides evidence of having common ancestry.
Conclusion of Evolution Theory
• Gradual change of species over time
• Evidence (biogeography, molecular record) support
evolution
• Explains how everything's come to be
• Evolution is a very likely theory
The End ... May the forces of
evolution be on your side!
Bibliography
* "Evolutionscientifictheory." EncyclopediaBritannica. 10 December.
2008. http://www.britannica.com/EBchecked/topic/197367/evolution/49849/Biogeog
raphy
* "Example of Microevolution." UnderstandingEvolution. 10 December.
2008. http://evolution.berkeley.edu/evolibrary/article/_0/evoscales_03
* Lance F. "Evolution GAQ." About.com. 11 December.
2008. http://atheism.about.com/library/FAQs/evolution/blfaq_evolution_evidence14.htm
* Douglas Theobald, Ph.D. "29+ Evidences For Macroevolution." ThetalkOriginsArchive. 19992004. 10 December. 2008. http://www.talkorigins.org/faqs/comdesc/section3.html
* "Science and Engineering." UCSD. 2 February. 2002. 10 December.
2008. http://ucsdnews.ucsd.edu/newsrel/science/mchox.htm
* Lisa Gardiner. "Fossil Evidence For Macroevolution." Evidence of Evolution. Randy
Russel. 4 February. 2008. UniversityofMichigan. 10 December.
2008. http://www.windows.ucar.edu/tour/link=/cool_stuff/tour_evolution_3.html