• Publications
  • Influence
Does excess dietary carbon affect respiration of Daphnia?
Like many invertebrate herbivores, Daphnia frequently face diets with excess carbon (C) relative to elements like phosphorus (P), and with limited ability to store C-rich compounds. To cope with thisExpand
  • 48
  • 5
Effects of food quality on life history of the rotifer Brachionus calyciflorus Pallas
1. Herbivorous zooplankton face considerable temporal and spatial variation in food quality, to which they respond by adapting their life histories. Zooplankton may even take up mineral nutrientsExpand
  • 49
  • 5
Age-dependent shift in response to food element composition in Collembola: contrasting effects of dietary nitrogen
We examined the effect of different food qualities, in terms of the C:N:P content, on the collembolan Hypogastrura viatica. We hypothesised that (faster growing) juveniles would have higher demandsExpand
  • 19
  • 2
Does excess carbon affect respiration of the rotifer Brachionus calyciflorus Pallas
1. Herbivorous zooplankton maintain a rather constant elemental composition in their body mass as compared with the variability commonly encountered in their food. Furthermore, their high phosphorusExpand
  • 21
  • 2
Cladocerans respond to differences in trophic state in deeper nutrient poor lakes from Southern Norway
We investigated the role of trophic state in structuring the cladoceran assemblages in 35 relatively deep lakes of low nutrient levels in Southern Norway. The lakes cover gradients of altitude,Expand
  • 19
  • 2
Meta-analysis of multidecadal biodiversity trends in Europe
Local biodiversity trends over time are likely to be decoupled from global trends, as local processes may compensate or counteract global change. We analyze 161 long-term biological time seriesExpand
  • 7
  • 1
  • PDF
Alien species in Norway: results from quantitative ecological impact assessments
Hanno Sandvik1,2 Olga Hilmo2 Snorre Henriksen2 Reidar Elven3 Per Arvid Åsen4 HanneHegre5 Oddvar Pedersen3 Per Anker Pedersen6 Heidi Solstad3 Vigdis Vandvik7 Kristine B.Westergaard1 FrodeØdegaard1,8Expand
  • 1
  • 1
Biotic and abiotic preferences of the cladoceran invader Limnosida frontosa
During the late 1980s and early 1990s, the cladoceran Limnosida frontosa invaded several lakes within its natural range in southeastern Norway. In this project, we wanted to study the types of lakesExpand
  • 15
  • PDF
Climate variability and lake ecosystem responses in western Scandinavia (Norway) during the last Millennium
Abstract This paper provides a high-resolution temperature reconstruction for the last Millennium from Lake Atnsjoen, SE Norway (61°52′31″N, 10°10′37″E). The sedimentary record reveals strongExpand
  • 14