Ursula Friberg‐Jensen

Effects of the pyrethroid insecticide, cypermethrin, on a freshwater community studied under field conditions. I. Direct and indirect effects on abundance measures of organisms at different trophic levels

Ursula Friberg‐Jensen, Lina Wendt-Rasch, Per Woin et al. · Aquatic Toxicology · 2003 · 92 citations

Life Sciences, Ecology, Environmental Sciences +17

Effects of the pyrethroid insecticide cypermethrin on a freshwater community studied under field conditions. II. Direct and indirect effects on the species composition

Lina Wendt-Rasch, Ursula Friberg‐Jensen, Per Woin et al. · Aquatic Toxicology · 2003 · 64 citations

Veterinary Medicine, Ecology, Environmental Sciences +15

Frequency of inhibitors of daphnid trypsin in the widely distributed cyanobacterial genus <i>Planktothrix</i>

Thomas Rohrlack, Kirsten Christoffersen, Ursula Friberg‐Jensen · Environmental Microbiology · 2005 · 34 citations

Life Sciences, Microbiology, Toxicology +7

Soil respiration profiles and protozoan enumeration agree as microbial growth indicators

Søren Christensen, Regin Rønn, Flemming Ekelund et al. · Soil Biology and Biochemistry · 1996 · 33 citations

Agriculture, Microbiology, Soil Sciences +13

Early signs of lethal effects in <i>Daphnia magna</i> (Branchiopoda, Cladocera) exposed to the insecticide cypermethrin and the fungicide azoxystrobin

Ursula Friberg‐Jensen, Gösta Nachman, Kirsten Christoffersen · Environmental Toxicology and Chemistry · 2009 · 30 citations

Veterinary Medicine, Pharmacology, Toxicology +17