test 3 SI - 22:01 Lecture1:

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22:01 Lecture 1: Ecology- all of the biological interactions. (2 main components abiotic-nonliving  elements, biotic- living elements) Levels Organism- survival and reproduction (a unit of natural selection aka how well it survives  and how many offspring) Population- unit of evolution (hardy-wineburg) Community- all the populations (positive and negative interactions) ---predation and  parasitism is a positive-negative interactions competition is a negative Ecosystems- non-living and living factors Biosphere- climate change is a main processes  Plants-Photoautotrophs Animals- heterotroph (get your food from other organisms) Bacteria- cycle nutrients Fungi- heterotrophs (decomposers aka detritovores) Difference between habitat and niche- a niche is what they need and their role in the  habitat. No species has the exact same niche. Types of niches: Fundamental- what the organism needs in an ideal world and the habitat that fulfils that. Realized niche-(shrunken niche) competition from other species causes it to go from  fundamental to realized niche **What makes a species invasive is how many things are eating  (parasitism) it or  competing with it.
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22:01 Latitudes
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22:01 At 0 degrees: a lot of precipitation, constant temp. Earth’s Axis Tilted at 23.5 degrees (north) –causes four seasons, more and  Tropic of cancer 23.5 degrees (north) Tropic of capricorn 23.5 degrees (south) Most energy and sunlight from sun is between equator and tropics Hadly cells- circulating air masses that rise and fall between 0,30,60,90 degree latitudes Intetropic convergence zone- between tropics Subtropical high pressure belt- the air is going down Seasons Summer solstice Winter solstice September solstice Haroh Solstice cliamate is long term vs. weather is short term
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22:01 oceanic circulation gulf stream - hot water moves 200 ft below surface then comes up and evaporates and  makes the air warm. That is why Europe is warmer than Canada even though they are  on the same longitude as Candida. ocean currents - distribute warm air, the warm energy in the water evaporate.  upwelling - an area where water from the bottom of the ocean that contains lots of  nutrients is brought up to the surface by currents. el nino year- no fish 
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This note was uploaded on 11/29/2011 for the course BIOLOGY BIO 187 taught by Professor Capco during the Spring '11 term at ASU.

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test 3 SI - 22:01 Lecture1:

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