TY - JOUR
T1 - Effects of spatial and temporal variation in metal availability on earthworms in floodplain soils of the river Dommel, The Netherlands.
AU - Bleeker, E.A.J.
AU - van Gestel, C.A.M.
PY - 2007
Y1 - 2007
N2 - Regarding impact on ecological soil functioning, metal pollution is often considered a constant factor for certain sampling sites. However, especially bioavailable concentrations may differ in space and time. This aspect was investigated on four sites along a metal-polluted river, differing in soil characteristics and metal concentrations. Every four weeks earthworm densities, soil characteristics, and metal concentrations in soil and earthworms were determined. Earthworm biomass and density fluctuated in time and increased with increasing metal contamination, indicating the presence of compensating factors. Multivariate analysis suggested organic matter and moisture content to be the main factors explaining earthworm biomass. Metal concentrations in the earthworms increased with increasing total or 0.01 M CaCl
AB - Regarding impact on ecological soil functioning, metal pollution is often considered a constant factor for certain sampling sites. However, especially bioavailable concentrations may differ in space and time. This aspect was investigated on four sites along a metal-polluted river, differing in soil characteristics and metal concentrations. Every four weeks earthworm densities, soil characteristics, and metal concentrations in soil and earthworms were determined. Earthworm biomass and density fluctuated in time and increased with increasing metal contamination, indicating the presence of compensating factors. Multivariate analysis suggested organic matter and moisture content to be the main factors explaining earthworm biomass. Metal concentrations in the earthworms increased with increasing total or 0.01 M CaCl
U2 - 10.1016/j.envpol.2007.01.034
DO - 10.1016/j.envpol.2007.01.034
M3 - Article
SN - 0269-7491
VL - 148
SP - 824
EP - 832
JO - Environmental Pollution
JF - Environmental Pollution
ER -