Class notes 2.1

Class notes 2.1 - Bio 1006-2/1 Tropical desert thornwood...

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Bio 1006-2/1 Tropical: desert, thornwood, savanna, seasonal forest, tropical rainforest 2/3 of earth’s surface is ocean Freshwater Lakes and Ponds: o Generally strong inflow and restricted outflow, nutrients tend to move into lake o Lifespan doomed over time due to sedimentation and accumulation of organic material (mud may fill up the lake, could be as high as 5 feet deep and in some cases it could eventually completely fill with mud) o Limnetic Zone-shallow layers where photosynthesis occurs o Apothotic Zone- deeper levels where light does not penetrate o Oligotrophic Lakes- deep lakes, low in nutrients, photosynthesis at top layers, temperature layers, high in O2 o Shows seasonal turnover of nutrients o Lake life zones- littoral zone( where the plants mostly grow), limnetic zone (where the most productivity occurs) Oceans: o Covers 2/3 of planet surface o Most important biome for global productivity and oxygen production o Stabilizes earth temperatures and provides for planet rainfall patterns
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This note was uploaded on 01/18/2012 for the course BIO 1006 taught by Professor Staff during the Spring '10 term at Virginia Tech.

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Class notes 2.1 - Bio 1006-2/1 Tropical desert thornwood...

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