BIOL 180 Lecture Notes - Lecture 44: Primary Production, Species Richness, The Theory Of Island Biogeography
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Describe net primary productivity as how much sunlight energy is captured and used to grow. Gpp stays constant around places near the equator as their seasons do not change as much. Scientists sometimes use these terms interchangeably but know the difference as in different communities where a few species dominate, species richness might be high but species diversity low! Analyze the impact of species diversity on npp. Why is there a positive correlation between biodiversity and productivity: resource use efficiency, use the same amount of npp, decrease in competition. If species a uses a resource, then species b will use another, different one: facilitation, one takes care of the other, mutualism!! Species act in accordance or have a relationship in which both of them benefit in some way: sampling effect, random chance; as you increase number of species, you get more producers. The theory of island biogeography (predicting species richness)
