b6.1.1 sampling techniques Flashcards
1
Q
what is sampling
A
taking measurements from a small area to represent a larger area
2
Q
sampling techniques
A
pooters kick sampling tree beating pitfall traps sweep nets
3
Q
equation for finding the total population
A
(first sample size * second sample size)/ number of recaptured marked
4
Q
how can you sample plants
A
using a quadrat, count the number of plants. take as many results and find an average. then multiply this by the total area
5
Q
random sampling
A
mark a grid on the sampling area and use a random number generator to find it
6
Q
non-random sampling
A
study how organisms change with distance
