ES101 Chapter 7-10&26-28: ES101 Chapters 7-10 & 26-28.pdf
13 May 2014
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Document Summary
Aquatic life zones: saltwater and freshwater aquatic life zones cover almost of the earth"s surface, 2 categories of aquatic environments are: saltwater (marine) and freshwater, water covers 71% of earths surface. Aquatic systems vs. terrestrial systems: aquatic, temperatures fluctuate slowly, low availability of oxygen, no shortage of water, buoyancy makes for easy locomotion, dispersal, fewer edges, niches, and boundaries, complex food chains. Es101 chapters 7-10 & 26-28: terrestrial environment, large daily/seasonal temperature range, oxygen is plentiful, water unevenly distributed, locomotion, dispersal more constrained, lots of edges, niches, and boundaries, simpler food chains. Why care about the oceans: although oceans occupy most of the earth"s surface and provide many ecological and economic services, we know less about them than we do about the mood. Marine biodiversity greatest points of contact: between ocean and shore, at ocean-air boundary, along benthic boundary. Es101 chapters 7-10 & 26-28: where different temperature waters mix, where freshwater mixes with saltwater.
