TABLE V
Effects of Pesticides on Diversity, Density, Number of Individuals and Biomass: Comparisons Between the Fauna of Sprayed
and Unsprayed Grassland. Data from Menhinick (1962)
~
Diversity
Density
Numbers
Biomass
No. of taxa in which
Category
No. of taxa in
density significantly
No. of individuals
Biomass per 3.7 nip
more abundant
per 3-7 ma
in gms
Treated
Untreated 2;::;
Treated
Untreated
Treat.ed Untreated
Treated
Untreated
Phytophagous
8
14
8
4
5
3 548
2 311
11.0
2.0
FungivorousSaprophytic
37
42
25
13
22
94800
15159
146.6
175.6
Predaceous
14
21
14
2
21
15 085
8 602
1.2
4.1
Total
53
82
51
17
44
113453
26591
154.0
183.0
Xote: The higher value in each set of figures is printed in bold.