Organism Distribution Noadswood Science, 2011. Organism Distribution To understand how changes in...
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Transcript of Organism Distribution Noadswood Science, 2011. Organism Distribution To understand how changes in...
Organism Distribution
Noadswood Science, 2011
Organism Distribution
To understand how changes in the environment affect the distribution of organisms
Friday, April 21, 2023
Environmental Change
Animals and plants are exposed to environmental change – these changes may be caused by living factors, such as a change in a predator, a food source or a competitor
Environmental changes may also be caused by non-living factors, such as a change in temperature or rainfall
Predators & Prey
If the prey population grows, predator numbers will respond to the increased food supply by increasing as well
Growing predator numbers will eventually reduce the food supply to the point where it can no longer sustain the predator population, and the number of predators will go down…
Practical – Choice Chamber
Investigate the behaviour of woodlice using a choice chamber – setup the chamber with 4 different environments: -
Dark and damp
Dark and dry
Light and damp
Light and dry
Leave the woodlice on their own for a while, and then the number of animals in each quarter…
* Remember these are living organisms – treat them appropriately
Practical – Choice Chamber
Describe and explain your findings…
Woodlice prefer dark, damp conditions – this is the type of habitat they live in. Should this change in their environment they will seek a better location