Transcript POWERPOINT Terminology for Food Chains

Glossary Terms
Sustainable Ecosystems
What is an Ecosystem?
What makes up an ecosystem?
Ecosystem
• interactions between the biotic (living)
organisms and the abiotic (non-living)
materials and how materials and energy
are transferred.
Ecosystem
i) Biotic
ii) Abiotic
• living or dead
• non-living materials;
•
organisms; made up
of cells.
examples: plants,
animals
basic unit is elements
also includes energy
• examples: plastic,
oxygen, water, rocks,
light, heat
Producers
vs
• turn radiant (light)
energy into
chemical (food)
energy by the
•
process of
photosynthesis
examples: plants,
algae, bacteria
Consumers
• can not make their
•
own food (chemical
energy)
examples: cows, fish,
birds
Consumers
• Primary Consumer
– First consuming organism in a
food chain
– Second trophic level
– Examples: herbivores or
omnivores
• Secondary Consumer
– Second consuming organism
in a food chain
– Third trophic level
– Examples: carnivores or
omnivores
• Tertiary Consumer
– Third consuming organism in
a food chain
– Fourth trophic level
– Examples: carnivores or
omnivores
Ecosystem
• Trophic level
– feeding level
Animals
• i) Herbivores
– Only eat producers
• ii) Carnivores
– Only eat consumers
• iii) Omnivores
– Eat producers and
consumers
Put it all together!!!
• Food Chain
– starts with a producer and only connects with
single links to the consumers.
• Now it is time to create your own!!
Last but not least!
• Scavengers
– Feed on bodies of larger animals
– Examples: vultures; bold eagles; ravens; hyenas;
some ants and beetles
• Detrivores
– Feed on bodies of smaller dead animals and plants
and dung (feces)
– Examples: crabs; earthworms; wood beetles;
carpenter ants
• Decomposers
– Feed on any remaining dead plant and animal matter; break
down the cells and get the last remaining energy
– Examples: bacteria; fungi