GEOG306 Lecture Notes - Lecture 7: Background Extinction Rate, Climate Change Adaptation, Intertidal Zone

• School: University of Waterloo
• Department: Geography and Environmental Management
• Course: GEOG306
• Professor: Johanna Wandel

Document Summary

1970 and 2012: biodiversity loss highest among freshwater species, average all vertebrate species index is about 60, corals and amphibians are of particularly urgent concern. What exactly is biodiversity and why is it. Indirect services children illness: delivered to us by health ecosystems. Climate change impacts on terrestrial (land-based) systems: warming temperatures and changing precipitation patterns can influence, range and abundance of species, life cycles, disturbance regimes and ecosystem level change, evolutionary effects. In the case of range and abundance shifts, changing temperature causes a shift in where a species can find a suitable home. In the northern hemisphere, this often means that home is moving north. In mountainous areas, we also add a third dimension to habitat shifts. Mountain pine beetles are tiny critters that lay eggs under the bark of pine trees, introducing a fungus that blocks water and nutrient transport in the tree.