Ecological Pyramids Ecological Pyramids Instead of representing trophic
- Slides: 19
Ecological Pyramids
Ecological Pyramids • Instead of representing trophic levels in a food web, an ecological pyramid can be used. Hawk (1 kcal) 5 4 Snake (10 kcal) Frog (100 kcal) 3 2 Grasshopper (1, 000 kcal) Grass (10, 000 kcal) 1
Ecological Pyramids • Does this pyramid represent a food chain or web? Hawk (1 kcal) • How could this pyramid be changed to represent a food web? 5 4 Snake (10 kcal) Frog (100 kcal) 3 2 Grasshopper (1, 000 kcal) Grass (10, 000 kcal) 1
Ecological Pyramids Hawk (1 kcal) • What do the big numbers represent? 5 4 Snake (10 kcal) Frog (100 kcal) 3 • What does the kcal mean? 2 Grasshopper (1, 000 kcal) Grass (10, 000 kcal) 1
Pyramid of Energy • What happens to the energy as you go up? Hawk (1 kcal) • How much energy is available for the next level? (What %) 5 4 Snake (10 kcal) Frog (100 kcal) 3 2 Grasshopper (1, 000 kcal) Grass (10, 000 kcal) 1
Pyramid of Energy Pyramids of energy show the relative amount of energy available at each trophic level of a food chain or food web. Hawk (1 kcal) 5 4 Snake (10 kcal) Frog (100 kcal) 3 2 Grasshopper (1, 000 kcal) Grass (10, 000 kcal) 1
Pyramid of Energy
Pyramid of Energy
Ecological Pyramids • How is this pyramid different from the previous ones? • What could the multiple pictures of the species at each level represent?
Pyramid of Biomass-the total amount of living tissue within a given trophic level. A pyramid of biomass illustrates the relative amount of living organic matter available at each trophic level
Pyramid of Biomass • What information would this pyramid include if it were a pyramid of biomass? • How do they get a number total for the biomass of a population?
Pyramid of Biomass
Pyramid of Biomass
Pyramid of Numbers A pyramid of numbers shows the relative number of individual organisms at each trophic level.
Pyramid of Numbers • What information would this pyramid include if it were a pyramid of numbers? • How do they get a number total for a population of organisms?
Pyramid of Numbers
Pyramid of Numbers
Pyramids of Aquatic Ecosystems • Numbers • Biomass Phytoplankton are microscopic and weigh very little • Energy
Pyramids of Temperate Forests • Numbers Trees are huge but not as numerous as many smaller forest creatures. • Biomass • Energy
Producers science
Food chains, food webs and ecological pyramids
Ecology is coined by
Biozone unit 1 and 2
Why do cells divide, instead of simply growing larger?
Sound walls vs word walls
What is juliet prepared to do instead of marrying paris
For example 접속사
Email instead of meeting
Defining sentence example
Why did orwell use animals instead of people
Paul fritz home instead
Punctuation for therefore
"the sun came up upon the left, out of the sea came he!"
Why do cells divide instead of growing larger
Why do cells divide instead of growing larger
Instead of punctuation
Clothes iron
Why did god chose moses instead of aaron
Participles instead of relative clauses
