Question | Answer |
What is a Pitfall trap used to sample? | small ground insects / invertebrates |
What are Quadrats used to sample? | Plants |
What is a limitation of a pitfall trap | difficult in hard soil |
What is used to sample small ground invertebrates? | Pitfall Trap |
What is used to sample Plants? | Quadrat |
What is a limitation of a quadrat? | Time consuming |
What is a source of error with a pitfall trap and how can it be avoided ? | Organisms eat each other / check traps regularly OR Birds eat organisms /cover the trap |
What is a source of error when using a Quadrat and how can it be avoided? | Not thrown Randomly,/ Don’t look where throwing it |
What is used to measure light intensity? | A light intensity meter |
What is a source of error when using a Light Intensity meter and how can it be avoided? | Shadow on the meter / hold at arm’s length. |
What is a source of error when using a Moisture Meter and how can it be avoided? | Moisture on probe / wipe between readings |
What is a source of error when using a pH Meter and how can it be avoided? | Soil on probe / wipe between readings |
What is used to measure soil pH? | A pH meter |
What is used to measure soil Moisture? | A light Moisture meter |
What is used to measure soil temperature | A thermometer |
What is a source of error when using a soil Thermometer and how can it be avoided? | Not put to same depth/ put to same depth bulb not in soil |