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Food Chainsand Food Webs
What is a food chain?• A food chain is “a sequence of organisms,  each of which uses the next, lower member of  the sequen...
Important facts about food chains• In a food chain each organism obtains energy  from the one at the level below.• Plants ...
Primary Producers• Primary producers are “organisms capable of  producing their own food4”• We can also say that they are ...
Primary Producers of NJ Marshes                                                                                           ...
Four types of consumer• Herbivores: animals that eat only plants3• Carnivores: animals that eat only other  animals3.• Omn...
Other Ways to Classify Consumers1. Primary Consumers: Herbivores3.2. Secondary Consumers: Carnivores that eat   herbivores...
Primary Consumers in MarshesMuskrat (eats mostly Cattails)                                                               h...
Primary Consumers in Marshes• Wood Duck eats seeds like those of the  Swamp Marsh Mallow and Blue Flag Iris          http:...
Primary Consumers in Marshes• Glassy-winged Toothpick Grasshopper – eats  leaves of plants like cattail and pickerelweed  ...
Secondary Consumers• Black Rat Snake eats eggs of animals like wood  duck       http://www.bio.davidson.edu/projects/tate/...
Secondary Consumers• Swamp Sparrow eats seeds but also insects  like the toothpick grasshopper        http://www.jeaniron....
Tertiary Consumers• Eat other animals in marsh including snake  and sparrow  Osprey   www.montereybay.com                 ...
Omnivore• Racoon eats seeds, fruits, insects, worms, fish,  and frogs… and pretty much anything else  they can get their p...
Detritivore• Worms are common detritivores in many  ecosystems including marshes
What is a food web?A food web is “an interlocking pattern of foodchains2”
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New food chainpp

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New food chainpp

  1. 1. Food Chainsand Food Webs
  2. 2. What is a food chain?• A food chain is “a sequence of organisms, each of which uses the next, lower member of the sequence as a food source1”
  3. 3. Important facts about food chains• In a food chain each organism obtains energy from the one at the level below.• Plants are called producers because they create their own food through photosynthesis3• Animals are consumers because they cannot create their own food, they must eat plants or other animals to get the energy that they need.
  4. 4. Primary Producers• Primary producers are “organisms capable of producing their own food4”• We can also say that they are photosynthetic, use light energy.• Examples of primary producers include algae, phytoplankton, and large plants.• Primary producers are eaten by primary consumers (herbivores)
  5. 5. Primary Producers of NJ Marshes Marsh Mallow Cattailshttp://www.nicerweb.com/doc/class/pix/PRAIRIE/2005_07_18/Typha_angustifolia.jpg http://www.ncdot.org/doh/Operations/dp_chief_eng/roadside/wildflowerbook/graphics/images/page14a.jpg Blue Flag Iris Marsh Fern http://www.ontariowildflower.com/images/blueflag2.jpg http://wisplants.uwsp.edu/scripts/detail.asp?SpCode=THEPALvPUB
  6. 6. Four types of consumer• Herbivores: animals that eat only plants3• Carnivores: animals that eat only other animals3.• Omnivores: animals that eat animals and plants3.• Detritivores: Animals that eat dead materials and organic wastes
  7. 7. Other Ways to Classify Consumers1. Primary Consumers: Herbivores3.2. Secondary Consumers: Carnivores that eat herbivores3.3. Tertiary Consumers: Carnivores that eat other carnivores3.
  8. 8. Primary Consumers in MarshesMuskrat (eats mostly Cattails) http://wdfw.wa.gov/wlm/living/graphics/muskrat1.jpghttp://www.advancedwildlifecontrolllc.com/images/muskrat.jpg
  9. 9. Primary Consumers in Marshes• Wood Duck eats seeds like those of the Swamp Marsh Mallow and Blue Flag Iris http://dsf.chesco.org/ccparks/lib/ccparks/wood_duck_pair.jpg
  10. 10. Primary Consumers in Marshes• Glassy-winged Toothpick Grasshopper – eats leaves of plants like cattail and pickerelweed http://bugguide.net/node/view/41662
  11. 11. Secondary Consumers• Black Rat Snake eats eggs of animals like wood duck http://www.bio.davidson.edu/projects/tate/Terms.htm
  12. 12. Secondary Consumers• Swamp Sparrow eats seeds but also insects like the toothpick grasshopper http://www.jeaniron.ca/2007/SwampSparrow6645.jpg
  13. 13. Tertiary Consumers• Eat other animals in marsh including snake and sparrow Osprey www.montereybay.com www.audubon.org
  14. 14. Omnivore• Racoon eats seeds, fruits, insects, worms, fish, and frogs… and pretty much anything else they can get their paws on! http://abouttitusville.com/BobPaty/Animals/images/Racoon.jpg
  15. 15. Detritivore• Worms are common detritivores in many ecosystems including marshes
  16. 16. What is a food web?A food web is “an interlocking pattern of foodchains2”

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