Now showing items 1-5 of 5

  • Breeding system, insect flower visitation, and floral traits of two alpine cerastium species in Norway 

    Totland, Ørjan; Schulte-Herbriiggen, Björn (The Institute of Arctic and Alpine Research, 1999)
    The pollination and reproductive ecology of Saxifraga stellaris was investigated in alpine southwest Norway. A breeding system analysis, with performance of controlled crosses, revealed that S. stellaris is self-compatible ...
    Journal articlePeer reviewed
  • Effects of temperature and natural disturbance on growth, reproduction, and population density in the alpine annual hemiparasite euphrasia frigida 

    Nyléhn, Jorun; Totland, Ørjan (The Institute of Arctic and Alpine Research, 1999)
    The effects of temperature and "natural disturbance" on growth, seed production, and population density in the facultative hemiparasitic annual Euphrasia frigida (Scrophulariaceae) were examined in the middle alpine zone ...
    Peer reviewedJournal article
  • Responses of tundra plants to experimental warming : meta-analysis of the international tundra experiment 

    Arft, A. M.; Walker, M. D.; Gurevitch, J.; Alatalo, J. M.; Bret-Harte, M. S.; Dale, M.; Diemer, M.; Gugerli, F.; Henry, G. H. R.; Jones, M. H.; Hollister, R. D.; Jónsdóttir, I. S.; Laine, K.; Lévesque, E.; Marion, G. M.; Molau, U.; Mølgaard, P.; Nordenhäll, U.; Raszhivin, V.; Robinson, C. H.; Starr, G.; Stenström, A.; Stenström, M.; Totland, Ørjan; Turner, P. L.; Walker, L. J.; Webber, P. J.; Welker, J. M.; Wookey, P. A. (Ecological Society of America, 1999)
    The International Tundra Experiment (ITEX) is a collaborative, multisite experiment using a common temperature manipulation to examine variability in species response across climatic and geographic gradients of tundra ...
    Journal articlePeer reviewed
  • Willow canopies and plant community structure along an alpine environmental gradient 

    Totland, Ørjan; Grytnes, John-Arvid; Heegaard, Einar (The Institute of Arctic and Alpine Research, 2005)
    We examined the impact of Salix lapponum canopies on plantcommunity structure in five sites along a climatic gradient in aglacier foreland in alpine south Norway. Species richness is lowerinside canopies compared to outside ...
    Peer reviewedJournal article
  • Wind to insect pollination ratios and floral traits in five alpine Salix species 

    Totland, Ørjan; Peeters, Liza (National Research Council Canada, 1999)
    This study examines the ratio of wind to insect pollination of five alpine-arctic Salix species and possible correlations between plant traits and this ratio. The field work was done in an alpine area in southwest Norway, ...
    Peer reviewedJournal article