4.7 Measuring Environmental Change Flashcards
What are animals and plants affected by?
The environment
What happens if the environment changes?
The organisms may not be able to survive there
What are the non-living factors that may change?
Temperature, rainfall, light and oxygen levels
What are the living factors that may change?
Arrival of new predators, disease, the introduction of new plants
What indicated the level of air pollution?
Lichens
What do lichens particularly indicate?
The sulfur dioxide levels
The more species of lichen growing, the…?
Cleaner the air
What are lichen an example of?
Indication species
What do indication species do?
Indicate changes in environmental pollution levels
What are another indication species as well as lichen?
Freshwater invertebrates
What do freshwater invertebrates indicate?
The concentration of dissolved oxygen in the water
The wider the range of the invertebrates…?
The cleaner the water
Where do some freshwater invertebrates only live?
In polluted water
What can be used to monitor non-living changes in the environment?
Rain gauges, thermometers, pH and oxygen sensors and data loggers
