2notes - Page 1 of 3 8/31/07 Number one take home message o...

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Page  1  of  3 8/31/07 Number one take home message o One species: one niche o Natural selection designs species o not your reproductive effort that governs the number of organisms Why are big fierce animals rare o Very little niche : rare o Koala – small niches – only eats one thing – rare What makes ecologist ask o How does an ecosystem work and why is there many parts to it? Why not more? What is defining all of this? o Reasoning : why Natural selection designs species They design to fit a niche Long enough to gather enough energy to reproduce o Darwinian fitness Getting genes into the next generation Niche – an organisms place in the ecosystem o What it eats? Who eats it? physical condition o Everything a organism does to survive and reproduce o “The Profession” Every organism is capable of over reproducing
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2notes - Page 1 of 3 8/31/07 Number one take home message o...

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