C4.1 Populations and Communities

Question 1

Lincoln index

Answer 1

Estimates the size of motile populations

Question 2

Lincoln index equation

Answer 2

Population size = m x (n/r)
m= number of individuals caught+marked in trial 1
n= number of individuals caught in trial 2
r= number of individuals marked in trial 2

Question 3

Chi Squared

Answer 3

Statistical test measuring the difference between achieved and expected results

Question 4

Allelopathy

Answer 4

When organisms secrete biochemicals influencing community/surrounding members