Biol 201 4-20-2010

Biol 201 4-20-2010 - o Animals role inlandscape formation...

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Landscape Ecology: They are heterogenous areas of land that comprise of patches and matrix. Patches= forest, matrix= everything that is not forest covered. Ways to cover the path area= % cover. Patch Shape= Patch shape is how circular a patch and we quantify that by looking at how circular it is and how much surface area it contains. Focus in Landscape Structure: o Human and Landscape structure From Netherlands, record types of land over time. o Climate, Geology, and disturbances: Geology: Howe natural things such as glaciers and streams cut up the land Climate: Precipitation and its influence on the land. Disturbances: Beavers
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Unformatted text preview: o Animals: role inlandscape formation Beavers dug up creeks, rives, streams • In the area where it is reintroduced, can vastly alter landscape • 4 years, what was mostly forces is now meadow and beaver pond • Effects of Landscape patterns on process: o Edge effects: Brood Parsitism: Metapopulations: Group of sub populations of a species that live in a geographical area. Corridor-links between patches: These are patches that facilitate the movement. How much do these matter? • Corridor vs winged patches to see the edge effects. • The overall richness does not change over time. It only fluctuates....
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