3.2 Flashcards
Abiotic factor
Non living factor that can effect biodiversity and distribution of organisms
Biotic factor
Living factors that can effect biodiversity and distribution of organisms
Examples of abiotic factors
Ph
Temperature
Moisture
Light intensity
Example of biotic factors
Grazing
Food availability
Predation
Disease
Competition for resources
Light intensity how is it messured and a procaution
Light intensity meter
Avioid shading sensor with body
How ph is measured and procaution
Ph meter
Clean and dry probe between samples
Abundance
Population of organisms in a defined area
Low abundance
High abundance
Non favourable conditions
Favourable conditions
How temperature is messured and a precaution
Thermometer
Same depth each time
Let thermometer a-just before reading values
Soil moisture
Moisture meter
Clean probe each time
Same depth each time
What are quadrats used to measure
Plants/slow moving animals
Pitfull trap definition do and don’t do
Used to sample small animals living on the soil surface /leaf litter
Check trap regularly
Don’t set traps too high above soil organisms can’t fall in
