Food Chains

• Food Chain: a simple sequence of feeding relationships.– May include a producer, an herbivore and a carnivore.– Shows the different levels of consumers.

Label the producer(s), the herbivore(s), and the carnivore(s). Are there any omnivores in this picture?

Food Webs• Food Web: complex sequences of feeding

relationships. Many food chains coming together!

Food Chains & Food Webs• The arrow points to the animal that is the

consumer. This signifies which direction the energy is flowing!

Label which organism is the producer, the primary consumer, secondary consumer, and tertiary consumer.

Food Chains & Food Webs Vocab• Producer: makes its own food for energy (ex. Plants, trees,

grass)• Consumer: needs to eat something else for energy (ex.

Insects, birds, tiger)– Primary Consumer: eats producers– Secondary Consumer: eats consumers that eat producers– Tertiary Consumer: eats consumers that eats other consumers

• Herbivore: only eats plants• Omnivore: eats both plants and meat• Carnivore: only eats meat• Scavenger: an animal that feeds on dead animal matter.• Decomposer: breaks down dead plant and animal matter

(decomposes organic matter)

Name the ecological relationship that the following slides represent.

Mutualism

Commensalism

Parasitism

Predation

Competition

Ecological Relationships• Symbiotic Relationships– Mutualism: both organisms benefit– Commensalism: one organism benefits, the other

organism is unaffected– Parasitism: one organism benefits, the other organism is

harmed• Other Relationships– Predation: one organism hunts and kills another

organism for food (predator-prey relationship)– Competition: two organisms compete or fight for

resources (shelter, food, mate)

Mountains to Sound Greenway Concepts

• Biotic/Abiotic Factors• Macroinvertebrates• Riparian Zone– Native Species– Invasive Species

• Water Quality– pH– Dissolved Oxygen

• Wildlife• Human Impact