Download - New Foodchain
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Food Chains
and Food Webs
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What is a food chain?
A food chain is a sequence of organisms,
each of which uses the next, lower member ofthe sequence as a food source1
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Important facts about food chains
In a food chain each organism obtains energyfrom the one at the level below.
Plants are called producers because theycreate their own food throughphotosynthesis3
Animals are consumers because they cannotcreate their own food, they must eat plants orother animals to get the energy that theyneed.
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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)
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Primary Producers of NJ Marshes
http://www.nicerweb.com/doc/class/pix/PRAIRIE/2005_07_18/Typha_angustifolia.jpg
Cattails
MarshMallow
http://www.ncdot.org/doh/Operations/dp_chief_eng/roadside/wildflowerbook/graphics/images/page14a.jpg
https://reader010.{domain}/reader010/html5/0621/5b2bcfcc62885/5b2bcfd0c2704.jpg
B
lueFlagIris
http://wisplants.uwsp.edu/scripts/detail.asp?SpCode=THEPALvPUB
M
arshFern
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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
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Other Ways to Classify Consumers
1. Primary Consumers: Herbivores3.
2. Secondary Consumers: Carnivores that eatherbivores3.
3. Tertiary Consumers: Carnivores that eatother carnivores3.
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Primary Consumers in Marshes
Muskrat (eats mostly Cattails)
https://reader010.{domain}/reader010/html5/0621/5b2bcfcc62885/5b2bcfd62071e.jpg
https://reader010.{domain}/reader010/html5/0621/5b2bcfcc62885/5b2bcfd796
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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
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Primary Consumers in Marshes
Glassy-winged Toothpick Grasshoppereats
leaves of plants like cattail and pickerelweed
http://bugguide.net/node/view/41662
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Secondary Consumers
Black Rat Snake eats eggs of animals like wood
duck
http://www.bio.davidson.edu/projects/tate/Terms.htm
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Secondary Consumers
Swamp Sparrow eats seeds but also insects
like the toothpick grasshopper
http://www.jeaniron.ca/2007/SwampSparrow6645.jpg
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Tertiary Consumers
Eat other animals in marsh including snake
and sparrow
www.audubon.orgwww.montereybay.com
Osprey
http://www.audubon.org/http://www.montereybay.com/http://www.montereybay.com/http://www.audubon.org/ -
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Omnivore
Racoon eats seeds, fruits, insects, worms, fish,
and frogs and pretty much anything elsethey can get their paws on!
http://abouttitusville.com/BobPaty/Animals/images/Racoon.jpg
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Detritivore
Worms are common detritivores in many
ecosystems including marshes
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What is a food web?
A food web is an interlocking pattern of foodchains2