Download Interactions-in-the-Ecosystem-lesson

Interactions in the Ecosystem
Niche: the function of a species in its ecosystem
Interactions in the Ecosystem
Niche: the function of a species in its ecosystem
includes: -where it lives
-what it eats
-how it behaves
Interactions in the Ecosystem
Food chain: shows the feeding relationship
among species in an ecosystem
e.g. a weasel, pine cone, squirrel, hawk
Interactions in the Ecosystem
Food chain: shows the feeding relationship
among species in an ecosystem
e.g. a weasel, pine cone, squirrel, hawk
food chain:
hawk
weasel
squirrel
pine cone
Interactions in the Ecosystem
Trophic level: the level of an organism in an
ecosystem based on its feeding position in a
food chain.
Interactions in the Ecosystem
Trophic level: the level of an organism in an
ecosystem based on its feeding position in a
food chain.
fourth trophic level
= tertiary consumers
(top carnivores)
third trophic level
= secondary consumers
(carnivores, omnivores)
second trophic level
= primary consumers
(herbivores)
first trophic level
= producers
Interactions in the Ecosystem
Food Web: a representation of the feeding
relationships within a community
-shows a series of interconnecting food chains