BIO 282 Lecture Notes - Lecture 12: Mutation Rate, Generation Time, Sympatry
Document Summary
How can we predict future impacts of today"s threats to biodiversity: fundamental niche. Moth example: future has narrow temperature which will cause a decrease in population. This is called a climate envelope model. Which niche is being modeled: realized niche does not equal the fundamental niche. Take-home message: realized niches can be used to predict responses to climate change, but fundamental niches would be better, need to know more than the niche: Allopatry: populations occur in different places. Sympatry: populations occur in the same places, rare. Indications that climate change has already had an impact. Species that have no where to go (polar bears cannot find anywhere colder) Climate envelope model: reconstructs idea of a niche for a species, where will they be in the future based on the information now. Example: pythons: do we have to worry about them in other areas, they have decreased the biodiversity of other species in florida, look at climate envelopes of python.
