Food Chains, food webs and energy pyramids
Co Herbivore re o niv Om Plant eater rn ivo re Meat eater Scavenger er po s m Eats already dead animals (road kill) Breaks down dead organisms co Food Chain Vocab Has to eat to get energy Co He nsu ter m otr er/ op h Ca De Pr Au odu to ce tro r/ ph Plant and meat eater Makes own food He n te sum ro tro ers ph / s
A food chain shows how we are all connected by what we eat
Notice the arrow direction!! A food chain shows the path of energy from one living thing to another. The arrows show the direction of energy not who's eating who.
So the bird is eating the butterfly. The energy is flowing to the bird.
(Photosynthesis) Radiant energy is converted to chemical energy and passed on to other organisms in the ecosystem. Energy passes from Sun to Producers to consumers
A food chain always starts with a Producer or Autotroph.
$10, 000 $10 Only 10% of the energy is passed on. http: //www. cambridgema. gov/The. Works/departments/re cycle/images/grass. jpg Some energy is used and some is lost as heat. http: //www. vdh. state. va. us/epidemiology/DEE/Vectorborne/West. Ni le/images/Hawkrt. jpg $1000 $100 http: //www. idratherbewriting. com/wpcontent/uploads/2007/07/grasshopper. jpg http: //www. australianfauna. com/images/pilligamouse. jpg
$10, 000 $10 http: //www. cambridgema. gov/The. Works/departments/re cycle/images/grass. jpg http: //www. vdh. state. va. us/epidemiology/DEE/Vectorborne/West. Ni le/images/Hawkrt. jpg $1000 $100 http: //www. idratherbewriting. com/wpcontent/uploads/2007/07/grasshopper. jpg http: //www. australianfauna. com/images/pilligamouse. jpg
A food web is several connected food chains Food Chain Food Web http: //www. bigelow. org/edhab/images/food_web. jpg
http: //www. agen. ufl. edu/~chyn/age 2062/lect_28/40_07. GIF
Energy Pyramid http: //www. waterprisms. com/shop/Cartpix/Pyramid. Lamps. Anasazi. Sun. JPG
Chains can also be arranged in an energy pyramid. Producers are on the bottom because they have the most energy http: //www. westone. wa. gov. au/k 12 lrcd/learning_areas/geography/geog 2 B/content/cell 4_spatial_impact/images/se 751_idea 04_pic 04. gif
Least mass Least Energy 3 rd to eat Tertiary Consumer 2 nd to eat Secondary Consumer First to eat Primary Consumer Most mass Producer Most energy
http: //www. world-builders. org/lessons/less/biomes/deciduous/decfor/dec-py. gif
Pyramid of Energy Heat 0. 1% Consumers 10% Consumers Heat http: //www. glencoe. com/qe/images/b 153/q 4715/ch 02_0_e. gif 100% Producers
Pyramid of Numbers 3 30 3000 Fox/Tertiary Consumer Birds/Secondary Consumer Grasshoppers/Primary Consumer Grasses/Producer http: //www. glencoe. com/qe/images/b 153/q 4715/ch 02_0_e. gif
Herbivore Primary Consumer Heterotroph Secondary Consumer Omnivore Heterotroph Producer Autotroph Heterotroph Decomposer Carnivore Tertiary Consumer
Removing an organism from the chain or pyramid will cause great harm and the closer it is to the beginning or bottom the worse it is.