topic 4.2.1: biodiversity Flashcards
1
Q
define species evenness
A
comparison of number of individuals of each species in a community
2
Q
define species richness
A
total number of different species in a habitat
3
Q
give 5 ways of sampling organisms
A
pooter (sucks air containing insects into container via tube)
sweep net
pitfall trap
tree beating (shaking tree or bush so insects fall onto white sheet below)
kick sampling (kicking river bank and catching organisms in net)
4
Q
what are the 4 types of sampling?
A
random, opportunistic (conveniently available organisms), stratfied (taking sample from subgroups of pop), systematic (different areas at reg intervals)
