biodiversity

Question 1

use information in table and table 2 to suggest and explain a reason for the difference in the numbers of the slate drake mayfly at these sites in this river

Answer 1

more angler curse mayfly at site 2
therefore more competition for resources such as food

so more mayfly starve

Question 2

what is specie richness

Answer 2

the number of different species in a community

Question 3

explain the relationship between the concentration of the herbicides and the mean index of diversity of insects

Answer 3

more plant species
greater variety of habitats

greater variety of food available