TABLE 2.

In situ parameters along the alimentary canal of L. terrestrisa

Alimentary canal siteMoisture content (%)Total nitrogen (mg g [dry wt]−1)Total carbon (mg g [dry wt]−1)Organic carbon (mg g [dry wt]−1)Nitrate (mmol liter [water content]−1)Nitrite (mmol liter [water content]−1)Ammonium (mmol liter [water content]−1)Iron(II) (mmol liter [water content]−1)
Crop/gizzard41.8 ± 3.06.8 ± 0.554.9 ± 5.149.5b0.3 ± 0.13.8 ± 0.217.9c5.4 ± 0.5
Foregut51.9 ± 0.29.0 ± 0.462.0 ± 3.558.8 ± 2.80.1 ± 0.02.5 ± 0.515.8b2.9 ± 0.5
Midgut49.1 ± 2.35.2 ± 1.249.6 ± 8.548.4 ± 8.20.1 ± 0.00.2 ± 0.111.0 ± 1.60.5 ± 0.3
Hindgut44.0 ± 3.34.4 ± 0.842.1 ± 6.541.3 ± 5.90.3 ± 0.00 ± 011.5 ± 1.40.1 ± 0.1
Soil19.9 ± 1.43.4 ± 0.838.6 ± 8.637.3 ± 8.20.9 ± 0.10.2 ± 0.10.8 ± 0.20.1c
  • a Unless otherwise stated, values are the means from triplicates (± standard deviations); each worm replicate consists of gut content derived from five worms.

  • b No standard deviation is given because three replicates had to be pooled to obtain sufficient material for analysis.

  • c No standard deviation is given because two replicates were analyzed, and the value is the average for the replicates.