Communities and ecosystems
- Created by: lavithedemon
- Created on: 06-04-16 08:21
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- Communities and Ecosystems
- most species occupy different trophic levels in multiple food chains
- trophic level - its feeding position in a food chain
- A food web shows all the possible food chains in a community
- the type of stable ecosystem that will emerge in an area is predictable based on climate
- temperature
- precipitation
- High rainfall
- forest
- high temperatures
- tropical rainforest
- cooler temperatures
- temperate rainforests
- moderate rainfall
- grassland
- no rainfall
- desert
- the percentage of ingested energy converted to biomass is dependent on the respiration rate
- Net production = gross production - respiration
- gross production - total amount of organic matter produced per unit area per unit time
- net production - amount of gross production remaining after subtraction of the amount used for respiration
- Net production = gross production - respiration
- Disturbance influences the structure and rate of change within ecosystems
- In closed ecosystems energy but not matter is exchanged with the surroundings
- Open ecosystems
- Untitled
- most species occupy different trophic levels in multiple food chains
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