BIOL-104 Lecture Notes - Lecture 25: Ecosystem Ecology, Tectonic Uplift, Limiting Factor
Document Summary
Co2 fluxuates throughout the year as plants perform more or less photosynthesis. Co2 is associated with temperature temperature follows co2 because of the greenhouse effect. You can find co2 levels by looking at the bubbles in really old ice. Today our focus is on biomes and ecosystems. Heat, air mass, land surface, ocean currents, etc. influence the temperatures and precipitation of the planet. You can predict a lot of biomes just by looking at the physical earth. The combination of latitude, position of land mas, current, and topography creates different combinations of precipitation and evapotranspiration the amount plants can hold on to/let go of (cid:449)ater. There"s a stro(cid:374)g relatio(cid:374)ship (cid:271)et(cid:449)ee(cid:374) the a(cid:374)(cid:374)ual pre(cid:272)ipitatio(cid:374) a(cid:374)d a(cid:374)(cid:374)ual temperature. The most endangered biomes are often thought to the tundra (but nothing lives here) and rainforests but the amount of habitat lost vs amount in protection makes grasslands the most endangered ecosystem.
