the value of biodiversity

Question 1

describe meta analysis

Answer 1

• Meta analysis - for quantitative review of existing data
○ Cant just use the same data and analyze it the same way- the data is measured differently
○ Zero effect line

Question 2

examples from metanalysis example?

Answer 2

○ Ex. Without otters, sea urchins increase and kelp decrease
○ w/o dingos - more fox, less mice, kangaroos increase (compete with mice for vegetation), biomass of grass decreases