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Table 1 Effect classification according to De Jong et al. [22] for the endpoints “diversity” and “abundance” in soil core and pitfall samples compared to the untreated control (Williams test, one-sided, α = 0.05)

From: Effects of calcium cyanamide on Collembola in a standardized field study. Part 2: lessons learned for chemical risk assessment in field studies with soil invertebrates

Treatment

200 kg/ha

400 kg/ha

Sample type

Pitfall

Soil core

Pitfall

Soil core

Diversity

 Number of species

2↑

2↑

2↓↑a

2↓↑a

 Shannon index

1

2↑

2↓↑a,b

1

 Evenness

2↓

1

2↓↑a

2↓↑a

Abundance

 Sum Collembola

2↓

2↓↑c

2↓d

2↓↑c

 Isotoma viridis

1

2↑c

2↓

2↑c

 Lepidocyrtus violaceus

1

2↓↑c

2↓↑d

2↓↑c

 Lepidocyrtus lignorum

1

(1)

1

(1)

 Heteromurus nitidus

(1)

(1)

 Sminthurinus aureus

(2↓)

(1)

(5↓)e

(2↓)f

 Parisotoma notabilis

1

2↓c

 Folsomia manolachi

2↑c

2↑c

 Protaphorura armata

(1)

(1)

 Tullbergia simplex

1

1

  1. Classes in brackets: numbers too low for a reliable evaluation
  2. aSingle differences with opposing trends
  3. bDifference on day 185 without dose–response relationship
  4. cNo dose–response relationship
  5. dIsolated decreases on day 28 after 1 application, after 2nd application no clear dose–response relationship
  6. eEffect on two consecutive samplings in autumn, next sampling five months later (following spring), for difference on last sampling no treatment relation considered
  7. fQuestionable due to low abundance