sampling methods revision (quadrats) mock revision 2022 Flashcards
1
Q
pooters collect…
A
- ground insects
- bottom of tree
2
Q
pooters are…
A
- jars that have a bung sealing the top of it, with two tubes running through the bung, long tube and short tube.
3
Q
how are pooters used?
A
- the long tube is placed over the insect on the ground above the insect.
- suck on the shorter tube and the insect is then sucked into the jar and collected.
4
Q
how are pooters useful for sampling?
A
- once all insects from the 2/however many sampling areas are collected the amount of insects can be compared.
5
Q
Pitfall traps collect…
A
- ground insects, range from beetles to snails.
6
Q
pitfall traps are…
A
- containers that are placed in a hole within the ground
- they have slanted sides and the top is partially open
7
Q
how are pitfall traps used?
A
- leave the trap overnight
- insects will walk/ fall into the trap and wont be able to escape as the sides are slanted
- next day look and count the amount of insects were found in the 1st sampling area
- repeat in another sampling area and then compare.
8
Q
Sweep nets collect…
A
- insects
- flies/ aphids
- spiders
9
Q
sweep nets are used in…
A
- tall grass
10
Q
how are sweep nets used?
A
- the net is swept through the tall grass
- insects are collected and then counted
- repeat in 2nd sampling area and then compare.
11
Q
pond net collects…
A
- insects
- water snails
12
Q
how are pond nets used?
A
- swept under water
- number of insects are counted
- used in another sampling area, compare
13
Q
Quadrats collect…
A
- insects, ground normally
14
Q
what is a quadrat?
A
- 1m^2 frame that is placed randomly within a nm^2 area.
15
Q
how are quadrats placed randomly?
A
- use random number generator to figure out coordinates and place the quadrat accordingly within the sampling area.
