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Unformatted text preview: 19:36 Islands 19:36 Read: A Geography of Islands: Chapter 2 Stephen Royle www.lib.unc.edu 3 Themes of Islands Remoteness Smallness How Many islands We don’t know because there isn’t a precise definition Australia is a continent, therefore anything less is an island (Greenland is the biggest island) Problem comes in at the small end, what is the smallest thing that we would consider an island What about things that are surrounded by water only some of the time? Islands and Physical Geography Two island categories Regional Scale, Continental Caused by waves, tides (Outer banks) Most commonly caused by sea level rise Global Scale, Oceanic Caused by tectonic shifts (Azores) Combination: Global and Regional Process Ferrel Islands Volcanic eruption followed by glaciation and sea level rise Islands and Biogeography Theory of Island Biogeography Species Richness the number of the species present in one place Islands...
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This document was uploaded on 10/28/2011 for the course GEOG 110 at UNC.
- Spring '08