ecology unit lesson the following power point provides additional information to assist you with...
TRANSCRIPT
Ecology Unit Lesson
The following power point provides additional information to assist you with answering the homework for the ecology
review
Ecological Levels of Organization
From smallest to largest
1. Organism (species)2. Population3. Community4. Ecosystem5. Biome6. Biosphere
(Click on the hyperlink to see an example of each)
There are inferences of biotic and abiotic interactions depicted in the diagram including but not limited to the fungi (biotic) decomposing the rotting log, the kangaroo (biotic) potentially
drinking from the pond, and sunlight (abiotic) providing warmth and energy to promote photosynthesis in the grass, trees and shrubs.
SymbiotIc
commensalism
mutualism
parasitism
R e l a t o n s h i p s
Click on each picture to read more about the symbiotic relationship
living together
A food chain model shows the feeding relationships of organisms and the movement of energy with the direction of the arrows
herbivore carnivorecarnivore
This energy pyramid indicates that amount of energy an organism receives at each trophic level. Each trophic level receives 10% of the energy from the previous level because 90% of the energy is used by the organism for daily life processes or lost at heat energy.
Biogeochemical Cycles
• The Water Cycle• The Carbon Cycle• The Nitrogen Cycle• The Phosphorus Cycle
Click on the hyperlink to see the diagram of each cycle
is a model depicting how water cycles through an ecosystemis a model depicting how carbon cycles through an ecosystem
is a model depicting how nitrogen cycles through an ecosystem
is a model depicting how phosphorus cycles through an ecosystem
SuccessionThe natural changes that occur in an area over time
Click on each picture to learn more about primary and secondary succession
This is a cheetah, an example of a single organism (living thing)or a species of cat
Click on picture to go back to main menu
This is a population of cheetahs a species living together in the same area
Click on picture to go back to main menu
This is a community of rhinos, zebras, and antelope- populations living together in the same area
Click on picture to go back to main menu
This ecosystem consists of animals, birds, grass, trees, a small pond, air and sunshine- all of the biotic and abiotic factors in an area
Click on picture to go back to main menu
The Tundra is a biome (a region depicted by its climate- avg. temp. and rainfall in a year) closest to the Arctic characterized by short plants, a permanently frozen subsoil called permafrost, and Caribou
Click on picture to go back to main menu
The biosphere includes all of the parts of the Earth including the atmosphere above and the ocean deep
Click on picture to go back to main menu
In a mutualistic relationship the Nile bird cleans the teeth of the crocodile
Click on picture to go back to main menu
The commensal relationship of the remora (sucker fish) and the stingray allow the remora to move from place to place without any effort
Click on picture to go back to main menu
The pupa of the braconid wasp covers the tomato hornworm and kills it in this parasitic relationship
Click on picture to go back to main menu
Click on the diagram to learn about the Water Cycle
The Water Cycle
Click here to return to the main menu
Click on the diagram to read an article about the carbon cycle and to complete the carbon cycle assignment sheet
Click on the button below to play the carbon cycle game
The Carbon CycleClick here to return to the main menu
start
The Nitrogen Cycle
To learn more about the Nitrogen Cycle, you will play a game that is set up around the room. You will act as a nitrogen atom and travel from place to place. You will need your passport and the nitrogen assignment sheet as you play the game.
Click here to return to the main menu
The Phosphorus Cycle
Study the diagram and describe how phosphorus cycles through an ecosystem
Click here to return to the main menu
Click here to return to succession menu
Secondary succession occurs after a natural disaster such as a forest fire or human action such as clear cutting where much of the vegetation is destroyed, but soil remains for plants to grow again.
This form of succession occurs similarly to primary succession except it occurs faster since there is no need to breakdown rock.