Zusammenfassung der Ressource
Ecological Energetics
- FOOD CHAIN: the feeding relationships between organisms
- Arrows represent direction of enerygy flow
- Stage=Trophic level
- GRAZING FOOD CHAIN- living plant
- DETRITUS FOOD CHAIN- dead organic matter
- most organisms rely on other sources and habitats
- depending on time of year/age.size of population
- Autotrophs; produce their own organic food (PRODUCERS)
- Heterotrophs rely on ready made food (CONSUMERS)
- FEEDING COMMUNITY:
- consumers
- PRIMARY- herbivores/eat producers
- SECONDARY- carnivores/ eat primary consumers
- TERTIARY- carnivores/top carnivores/eat other consumers
- DETRITVORES- earthworms/woodlice/primary consumers/feed on detrtus (dead organic matter) + break into small fragments
- DECOMPOSERS- fungi/bacteria/energy from dead decaying materialand complete decomposition
- PYRAMIDS OF NUMBER,BIOMASS=ENERGY