BIOLOGY 1B Lecture Notes - Lecture 14: Atmospheric Circulation, Ecological Succession
Document Summary
Ecology topics: environment, populations, ecological communities, ecosystems and global biology. ->one of main reasons why we see organisms where they are. Ecological system: has both abiotic and biotic components. ->biotic: biological parts, abiotic: parts that don"t have to do with biology. ->how do microbes function inside community of microbes gut. -->experimental manipulation, or, natural experiments (in time or space) ->in yellowstone: natural example-->something happens to some habitats, not all the habitats. ->researchers did not physically manipulate these, but in this case, nature manipulated. ->natural experiments->occur naturally, can also happen over time-->ecological succession. Seasonality: throughout the year, the climate may change, but it will be predictable because of seasonalities. Solar energy: latitude and tilt of the earth. ->when the sun hits the earth: mostly at equator. ->variation in climate greater in the north: more land in the north. ->descending dry air absorbs moisture, ascending moist air releases moisture. ->may have patterns that are similar across the earth.
