Week 4 BIO 301-01
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This 3 page Class Notes was uploaded by carr34 Notetaker on Sunday September 18, 2016. The Class Notes belongs to BIO 301-01 at University of North Carolina - Greensboro taught by Robert H. Stavn in Fall 2016. Since its upload, it has received 41 views. For similar materials see Principles of Ecology in Biology at University of North Carolina - Greensboro.
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Date Created: 09/18/16
Climate and Habitability 1. Why is the amount of solar radiation important? a. Climate/weather i. Habitability (Biome) b. Photosynthetically active radiation (PAR) c. Greenhouse effect [diagram] 2. What produces climate? a. Primarily solar radiation i. What happens to the solar radiation that hits the planet 1. [figure 2.3] 2. Sun short waves and Earth long waves [2.2] 3. *remember* solar radiation includes visible and invisible wavelength [2.4] b. The amount of solar radiation hitting the planet varies i. Varies with location 1. What is a day(rotation of the earth on its axis), a year(seasons)? 2. [2.5, 2.6] 3. [2.7a] ii. Variations due to the time of year 1. Average amount of light at any location is 12 hours/day 2. [2.7b] c. The amount of solar radiation affect many aspects of climate i. Isothermal lines and temperature variation 1. Latitude and time of year [2.8] ii. Air circulation patterns 1. Perpendicular to the surface [2.12], [2.10] a. Farther from the equator the longer the dry seasons 2. Parallel to the surface (trade winds, easterlies, and westerlies) [2.14] a. Coriolis effect plays a role as well [2.13] 3. Habits/ meter vs. latitude and air currents iii. Ocean currents [2.15] 1. Produced by 3 main factors a. Solar energy (heating and cooling of the water) b. Winds (solar energy) c. Landmasses 2. Gyres a. 2 in each ocean b. Great Pacific garbage patch, growing in Atlantic 3. Precipitation a. Difference at different latitudes [2.17][2.20] b. Latitude, wind and air currents [2.18] i. Rising air precipitation ii. Desce nding air dry c. Rain shadow [2.23] [2.20] i. topogr aphy d. Weather on a regional scale i. Normal [2.23a] 1. Trade winds move water west across the surface > cool water rising off the coast of Peru (upwelling of water) > rain falls as air rising over Indonesia > rain over Indonesia ii. El Nino position of rising air shifts/ cool water does not reach the surface [2.23b] 1. Winds moving in opposite directions (east and west) > cool water does not reach the surface > converge over open ocean > air rises > precipitation iii. Factors that produce these regional effect 1. Water temperature differences (depth), air temperature, wind direction, wind speed, pressure at different sea levels, cloud cover e. Ecosystems i. Plants are dictated by climate ii. Plants play a large role in weather 1. Transpiration a. Photosynthesis transpiration compromise 3. There is a transfer of large amount of energy from the equator to the poles transparency. a. Wind patterns, upwelling, wind (hurricanes, tornadoes etc.), humidity, etc. 4. Microclimates a. Defined i. Size varies 1. Examples: under a log, Sunol CA b. Organisms live in microclimates i. Lizard in its hole versus out in the sun 1. Utilities different microclimates ii. Different levels of a tropical rain forest 1. Resource partitioning iii. Dividing the levels of the intertidal zone 5. Continental a. How would that change the climate? *change Greenhouse and Ice Ages Most of last 100,000 years on Ice Age Milutin Milankovitch