Activity: Constructing A Food Web

M. Stafford

Food Chains and Food WebsReview

• Food chain – a series of organisms that transfer food between trophic levels

Oak beauty

House Wren

Cooper’s Hawk

• Food web - a network of food chains representing the feeding relationships among organisms in an ecosystem

Muhlenbergia Deer Grass

Quercus

Black Oak

Elodea and other aquatic plants

Aquatic Protozoans

Three spinned stickleback

Belted Kingfisher

Chinook Salmon (Salmo)

Bald Eagle (Haliaeetus leucocephalus)

Black Bear (Ursus)

Deer Grass (Muhlenbergia)

Valley Oak (Quercus)

Oak weevil and other insects

Gall Wasp

California Ground Squirrel(Ottospermophilos)

Cottontail (Sylvalagus)

Cooper’s Hawk (Accipiter)

Acorn Woodpecker (Melanerpes)

Plain Titmouse (Parus)

Black throated gray warbler

Western Fence Lizard (Sceloporus)

Common King Snake (Lampropeltis)

Timber Rattlesnake (Crotalus)

Roadrunner (Geococcyx)

Coyote (Canus)

Mountain Lion (Felis)

Mule Deer (Odocoileus)

Turkey Vulture (Carthartes)

Your task

• To construct a food web using the information from lecture.You may have one computer for your group if you want to

Arrows point the way energy flows

Scavengers and Decomposers purple

• Producers (plants) will be shaded green

• Primary consumers shaded blue

• Secondary Consumers shaded red.

• Omnivores may have more than one color