Table/Figure – Pesticides Research No. 127 2009 – Buffer zones for biodiversity of plants and arthropods: is there a compromise on width?

Buffer zones for biodiversity of plants and arthropods: is there a compromise on width?

Table 3.14. Schematic summary of the statistical analyses on abundance of pitfall-caught epigaeic arthropods.

Class/order	Family	Subfamily/ Genus	Period²	Test results F_(ndf,ddf)^P¹
				Field³	Distance⁴	Buffer⁵	Buffer × distance⁶
Araneae			1	6.02_{(3, 15)}^**	3.94_{(4, 12)}^*	1.80_{(4, 13)}^NS	2.68_{(16, 49)}^**
			2	4.78_{(3, 15)}^*	10.91_{(4, 16)}^***	20.96_{(4, 14)}^***	7.72_{(16, 47)}^***
			3	6.85_{(3, 13)}^**	39.70_{(4, 40)}^***	42.94_{(4, 17)}^***	25.24_{(16, 48)}^***
	Linyphiidae		1	0.48_{(3, 63.47)}^NS	10.96_{(4, 85.19)}^***	1.38_{(4, 14)}^NS	0.76_{(16, 48)}^NS
			2	3.60_{(3, 11)}^*	13.01_{(4, 12)}^***	17.30_{(4, 14)}^***	7.53_{(16, 49)}^***
			3	6.41_{(3, 16)}^**	34.37_{(4, 19)}^***	38.67_{(4, 18)}^***	21.28_{(16, 46)}^***
	Lycosidae		1	4.30_{(3, 15)}^*	2.06_{(4, 13)}^NS	0.56_{(4, 14)}^NS	2.28_{(16, 49)}^*
Coleoptara	Carabidae		1	5.86_{3, 16)}^**	1.29_{(4, 12)}^NS	0.47_{(4, 12)}^NS	1.70_{(16, 49)}^NS
			2	4.94_{(3, 18)}^*	6.73_{(4, 13)}^**	4.20_{(4, 13)}^*	4.03_{(16, 50)}^***
			3	11.47_{(3, 14)}^***	3.03_{(4, 12)}^NS	5.59_{(4, 12)}^**	3.31_{(16, 49)}^***
		Agonum	3	1.75_{(3, 12)}^NS	2.14_{(4, 13)}^NS	0.55_{(4, 14)}^NS	1.13_{(16, 48)}^NS
		Bembidion	1	4.39_{(3, 12)}^*	10.63_{(4, 9)}^**	1.21_{(4, 17)}^NS	1.76_{(16, 44)}^NS
			2	3.83_{(3, 14)}^*	20.72_{(4, 25)}^***	7.02_{(4, 21)}^***	4.96_{(16, 54)}^***
			3	7.41_{(3, 11)}^**	5.18_{(4, 12)}^*	2.22_{(4, 10)}^NS	2.28_{(16, 47)}^*
		Harpalus	1	17.78_{(3, 13)}^***	3.08_{(4, 9)}^NS	0.42_{(4, 12)}^NS	1.52_{(16, 53)}^NS
			2	5.04_{(3, 17)}^*	1.41_{(4, 12)}^NS	0.38_{(4, 11)}^NS	1.99_{(16, 49)}^*
			3	8.08_{(3, 12)}^**	4.43_{(4, 10)}^*	3.74_{(4, 10)}^*	3.09_{(16, 46)}^**
		Nebria	1	2.00_{(3, 12)}^NS	7.36_{(4, 11)}^**	0.95_{(4, 24)}^NS	1.46_{(16, 48)}^NS
		Pterostichus	1	7.60_{(3, 10)}^**	9.60_{(4, 12)}^***	0.44_{(4, 10)}^NS	1.34_{(16, 47)}^NS
			2	2.95_{(3, 12)}^NS	1.37_{(4, 9)}^NS	1.70_{(4, 11)}^NS	2.01_{(16, 44)}^*
			3	26.89_{(3, 16)}^***	0.58_{(4, 12)}^NS	0.87_{(4, 10)}^NS	1.56_{(16, 53)}^NS
	Staphylinidae		1	4.67_{(3, 17)}^*	5.56_{(4, 13)}^**	0.29_{(4, 12)}^NS	0.68_{(16, 49)}^NS
			2	0.45_{(3, 17)}^NS	0.41_{(4, 12)}^NS	0.20_{(4, 12)}^NS	3.53_{(16, 48)}^***
			3	2.56_{(3, 15)}^NS	1.10_{(4, 12)}^NS	0.22_{(4, 12)}^NS	2.54_{(16, 48)}^**
		Aleocharinae	1	1.57_{(3, 14)}^NS	2.06_{(4, 13)}^NS	0.39_{(4, 11)}^NS	0.77_{(16, 48)}^NS
			2	0.19_{(3, 14)}^NS	4.93_{(4, 15)}^NS	1.18_{(4, 12)}^NS	1.86_{(16, 51)}^*
			3	0.76_{(3, 18)}^NS	0.87_{(4, 13)}^NS	0.20_{(4, 12)}^NS	2.67_{(16, 50)}^**
		Oxytelinae	1	4.45_{(3, 11)}^*	5.45_{(4, 9)}^*	0.15_{(4, 11)}^NS	2.22_{(16, 42)}^*
			2	1.73_{(3, 14)}^NS	1.33_{(4, 12)}^NS	0.42_{(4, 12)}^NS	3.37_{(16, 46)}^***
			3	7.33_{(3, 16)}^**	4.23_{(4, 13)}^*	2.88_{(4, 15)}^NS	2.37_{(16, 53)}^**
		Tachyporus	2	4.92_{(3, 10)}^*	23.66_{(4, 58)}^***	0.53_{(4, 15)}^NS	2.17_{(16, 58)}^*

¹^NSNot significant, ^*P < 0.05, ^**P < 0.01, ^***P < 0.001. F is the F-value, ndf and ddf is the numerator and denominator degree of freedom used for testing the significance.

² Three sampling periods: 1. After herbicide application (May), 2. After first insecticide application (June), 3. After second insecticide application (July).

³ Effect of field (four fields were included in the experiment).

⁴Effect of distance from field edge (sampling was carried out 0, 2, 5, 9 and 18 m from the field edge).

⁵Effect of buffer width (0, 4, 6, 12 and 24 m).

⁶Effect of the combination of distance and buffer width (in total there were 5 × 5 = 25 combinations).