Ørjan Totlands bilde

Ørjan Totland

Instituttleder, Professor
  • E-postorjan.totland@uib.no
  • Telefon+47 55 58 46 01
  • Besøksadresse
    Thormøhlens gate 53 A/B
    5006 Bergen
  • Postadresse
    Postboks 7803
    5020 Bergen
Min forskningsaktivitet har hovedsakelig fokusert på hvordan insekter påvirker planters blomster-evolusjon og reproduksjonssuksess gjennom pollinering, spesielt i fjelløkosystem. Jeg forsker også på hvilken betydning insektpollinering har for jordbruksproduksjon i Afrika. Videre er jeg interessert i hvordan klimaendringer kan påvirke plante-pollinator interaksjoner. Jeg har også forsket mye på hvordan klimaendringer kan påvirke dynamikken til plantepopulasjoner og plantesamfunn, spesielt i alpine økosystemer.
Vitenskapelig artikkel
  • Vis forfatter(e) (2021). The tundra phenology database: more than two decades of tundra phenology responses to climate change. Arctic Science. 1026-1039.
  • Vis forfatter(e) (2021). Ontogenetic niche shifts in a locally endangered tree species (Olea europaea subsp. cuspidata) in a disturbed forest in Northern Ethiopia: Implications for conservation. PLOS ONE. 13 sider.
  • Vis forfatter(e) (2021). Experimental warming differentially affects vegetative and reproductive phenology of tundra plants. Nature Communications. 12 sider.
  • Vis forfatter(e) (2020). Inadequate pollination services limit watermelon yields in northern Tanzania. Basic and Applied Ecology. 35-45.
  • Vis forfatter(e) (2020). Forest fragmentation modifies the composition of bumblebee communities and modulates their trophic and competitive interactions for pollination. Scientific Reports. 15 sider.
  • Vis forfatter(e) (2020). Enhancing pollination is more effective than increased conventional agriculture inputs for improving watermelon yields. Ecology and Evolution. 5343-5353.
  • Vis forfatter(e) (2020). Disentangling direct and indirect effects of habitat fragmentation on wild plants' pollinator visits and seed production. Ecological Applications. 13 sider.
  • Vis forfatter(e) (2019). Unfenced Borders Cause Differences in Vegetation and Fauna Between Protected and Unprotected Areas in a Tropical Savanna. Tropical Conservation Science.
  • Vis forfatter(e) (2018). Warming shortens flowering seasons of tundra plant communities. Nature Ecology and Evolution. 45-52.
  • Vis forfatter(e) (2018). Locally endangered tree species in a dry montane forest are enhanced by high woody species richness but affected by human disturbance. Journal of Arid Environments. 19-27.
  • Vis forfatter(e) (2018). Community level niche overlap and broad scale biogeographic patterns of bee communities are driven by phylogenetic history. Journal of Biogeography. 461-472.
  • Vis forfatter(e) (2018). BioTIME: A database of biodiversity time series for the Anthropocene. Global Ecology and Biogeography. 760-786.
  • Vis forfatter(e) (2017). Disentangling the contributions of dispersal limitation, ecological drift, and ecological filtering to wild bee community assembly. Ecosphere. 16 sider.
  • Vis forfatter(e) (2016). The relative importance of vertical soil nutrient heterogeneity, and mean and depth-specific soil nutrient availabilities for tree species richness in tropical forests and woodlands. Oecologia. 877-888.
  • Vis forfatter(e) (2016). The effects of habitat management on the species, phylogenetic and functional diversity of bees are modified by the environmental context. Ecology and Evolution. 961-973.
  • Vis forfatter(e) (2016). Performance of two alpine plant species along environmental gradients in an alpine meadow ecosystem in central Tibet. Ecological Research. 417-426.
  • Vis forfatter(e) (2016). Experimental simulation of pollinator decline causes community-wide reductions in seedling diversity and abundance. Ecology. 1420-1430.
  • Vis forfatter(e) (2015). Spatial distribution of temporal dynamics in anthropogenic fires in miombo savanna woodlands of Tanzania. Carbon Balance and Management. 15 sider.
  • Vis forfatter(e) (2015). Relationships between tree species richness, evenness and aboveground carbon storage in montane forests and miombo woodlands of Tanzania. Basic and Applied Ecology. 239-249.
  • Vis forfatter(e) (2015). Pollen limitation, species' floral traits and pollinator visitation: Different relationships in contrasting communities. Oikos. 174-186.
  • Vis forfatter(e) (2015). Interactions between Canopy Structure and Herbaceous Biomass along Environmental Gradients in Moist Forest and Dry Miombo Woodland of Tanzania. PLOS ONE. 15 sider.
  • Vis forfatter(e) (2015). Intense use of woody plants in a semiarid environment of Northern Ethiopia: Effects on species composition, richness and diversity. Journal of Arid Environments. 14-21.
  • Vis forfatter(e) (2015). Effects of experimentally simulated pollinator decline on recruitment in two European herbs. Journal of Ecology. 328-337.
  • Vis forfatter(e) (2015). Edge effects on plant communities along power line clearings. Journal of Applied Ecology. 871-880.
  • Vis forfatter(e) (2015). Does the abundance of dominant trees affect diversity of a widespread tropical woodland ecosystem in Tanzania? Journal of Tropical Ecology. 345-359.
  • Vis forfatter(e) (2015). Does multi-level environmental filtering determine the functional and phylogenetic composition of wild bee species assemblages? Ecography. 140-153.
  • Vis forfatter(e) (2014). The influence of floral symmetry, dependence on pollinators and pollination generalization on flower size variation. Annals of Botany. 157-165.
  • Vis forfatter(e) (2014). Structural properties of mutualistic networks withstand habitat degradation while species functional roles might change. Oikos. 323-333.
  • Vis forfatter(e) (2014). Spatio-temporal variation in species assemblages in field edges: Seasonally distinct responses of solitary bees to local habitat characteristics and landscape conditions. Biodiversity and Conservation. 2393-2414.
  • Vis forfatter(e) (2014). Spatial variation in plant species richness and diversity along human disturbance and environmental gradients in a tropical wetland. Wetlands Ecology and Management. 395-404.
  • Vis forfatter(e) (2014). Relationships between the density of two potential restoration tree species and plant species abundance and richness in a degraded Afromontane forest of Kenya. African Journal of Ecology. 77-87.
  • Vis forfatter(e) (2014). Plant species richness, evenness, and composition along environmental gradients in an Alpine meadow grazing ecosystem in Central Tibet, China. Arctic, Antarctic and Alpine research. 308-326.
  • Vis forfatter(e) (2014). Invasion of the cosmopolitan species Echinochloa colona into herbaceous vegetation of a tropical wetland system. Ecological Research. 969-979.
  • Vis forfatter(e) (2014). Heating effect by perianth retention on developing achenes and implications for seed production in the alpine herb Ranunculus glacialis. Alpine Botany. 37-47.
  • Vis forfatter(e) (2014). Experimental reduction of pollinator visitation modifies plant–plant interactions for pollination. Oikos. 1037-1048.
  • Vis forfatter(e) (2014). Community invasibility and invasion by non-native Fraxinus pennsylvanica trees in a degraded tropical forest. Biological Invasions. 2447-2755.
  • Vis forfatter(e) (2013). Woody vegetation dynamics in the rangelands of lower Omo region, southwestern Ethiopia. Journal of Arid Environments. 94-102.
  • Vis forfatter(e) (2013). Woody plant assemblages in isolated forest patches in a semiarid agricultural matrix. Biodiversity and Conservation. 2519-2535.
  • Vis forfatter(e) (2013). Plant functional traits mediate reproductive phenology and success in response to experimental warming and snow addition in Tibet. Global Change Biology. 459-472.
  • Vis forfatter(e) (2013). Phenological response of tundra plants to background climate variation tested using the International Tundra Experiment. Philosophical Transactions of the Royal Society of London. Biological Sciences. 13 sider.
  • Vis forfatter(e) (2013). Influence of Two N-Fixing Legumes on Plant Community Properties and Soil Nutrient Levels in an Alpine Ecosystem. Arctic, Antarctic and Alpine research. 363-371.
  • Vis forfatter(e) (2013). How do pollinator visitation rate and seed set relate to species' floral traits and community context? Oecologia. 881-893.
  • Vis forfatter(e) (2013). Experimental pollinator decline affects plant reproduction and is mediated by plant mating system. Journal of Pollination Ecology. 44-56.
  • Vis forfatter(e) (2013). Ecosystem responses to woody plant encroachment in a semiarid savanna rangeland. Plant Ecology. 1211-1222.
  • Vis forfatter(e) (2013). Are droppings, distance from pastoralist camps, and pika burrows good proxies for local grazing pressure? Rangeland Ecology & Management. 26-33.
  • Vis forfatter(e) (2012). Species composition and functional structure of herbaceous vegetation in a tropical wetland system. Biodiversity and Conservation. 2865-2885.
  • Vis forfatter(e) (2012). Recovery of plant species richness and composition in an abandoned forest settlement area in Kenya. Restoration Ecology. 462-474.
  • Vis forfatter(e) (2012). Interactions for pollinator visitation and their consequences for reproduction in a plant community. Acta Oecologica. 95-103.
  • Vis forfatter(e) (2011). Relationships between densities of previous and simultaneous foragers and the foraging behaviour of three bumblebee species. Ecological Entomology. 221-230.
  • Vis forfatter(e) (2011). Do disturbance and productivity influence evenness of seedling, sapling and adult tree species across a semi-deciduous tropical forest landscape? Oikos. 623-629.
  • Vis forfatter(e) (2011). Bamboo dominance reduces tree regeneration in a disturbed tropical forest. Oecologia. 161-168.
  • Vis forfatter(e) (2010). Recovery of plant species richness and composition after slash-and-burn agriculture in a tropical rainforest in Madagascar. Biodiversity and Conservation. 187-204.
  • Vis forfatter(e) (2010). Population dependence in the interactions with neighbors for pollination: A field experiment with Taraxacum officinale. American Journal of Botany. 760-769.
  • Vis forfatter(e) (2010). Local floral composition and the behaviour of pollinators: attraction to and foraging within experimental patches. Ecological Entomology. 652-661.
  • Vis forfatter(e) (2010). Factors related to the inter-annual variation in plants' pollination generalization levels within a community. Oikos. 825-834.
  • Vis forfatter(e) (2009). The relative importance of positive and negative interactions for pollinator attraction in a plant community. Ecological Research. 929-936.
  • Vis forfatter(e) (2009). The effects of environmental variables and human disturbance on woody species richness and diversity in a bamboo-deciduous forest in northeastern Thailand. Ecological Research. 147-156.
  • Vis forfatter(e) (2009). Relationships between the floral neighborhood and individual pollen limitation in two self-incompatible herbs. Oecologia. 707-719.
  • Vis forfatter(e) (2009). Pollen Limitation in the Alpine: a Meta-Analysis. Arctic, Antarctic and Alpine research. 103-111.
  • Vis forfatter(e) (2009). Co-flowering neighbors influence the diversity and identity of pollinator groups visiting plant species. Oikos. 691-702.
  • Vis forfatter(e) (2008). The relationships between floral traits and specificity of pollination systems in three Scandinavian plant communities. Oecologia. 249-257.
  • Vis forfatter(e) (2008). Simulated environmental change has contrasting effects on defensive compound concentration in three alpine plant species. Arctic, Antarctic and Alpine research. 709-715.
  • Vis forfatter(e) (2008). Macrophyte species diversity in formerly cultivated wetlands in Uganda. African Journal of Ecology. 646-654.
  • Vis forfatter(e) (2008). Is the magnitude of pollen limitation in a plant community affected by pollinator visitation and plant species specialisation levels? Oikos. 883-891.
  • Vis forfatter(e) (2008). Diversity-stability relationships of an alpine plant community under simulated environmental change. Arctic, Antarctic and Alpine research. 679-684.
  • Vis forfatter(e) (2007). Within-population spatial variation in pollinator visitation rates, pollen limitation on seed set, and flower longevity in an alpine species. Acta Oecologica. 262-268.
  • Vis forfatter(e) (2007). The relative role of dispersal and local interactions for alpine plant community diversity under simulated climate warming. Oikos. 1279-1288.
  • Vis forfatter(e) (2007). The effect of forest management operations on population performance of Vaccinium myrtillus on a landscape-scale. Basic and Applied Ecology. 231-241.
  • Vis forfatter(e) (2007). Pollen limitation affects progeny vigour and subsequent recruitment in the insect-pollinated herb Ranunculus acris. Oikos. 1204-1210.
  • Vis forfatter(e) (2007). Do alien plant invasions really affect pollination success in native plant species? Biological Conservation. 1-12.
  • Vis forfatter(e) (2006). Pollinator visitation, pollen limitation, and selection on flower size through female function in contrasting habitats within a population of Campanula persicifolia. Canadian Journal of Botany. 412-420.
  • Vis forfatter(e) (2006). Plant community responses to experimental warming across the tundra biome. Proceedings of the National Academy of Sciences of the United States of America. 1342-1346.
  • Vis forfatter(e) (2006). Effects of an exotic plant and habitat disturbance on pollinator visitation and reproduction in a boreal forest herb. American Journal of Botany. 868-873.
  • Vis forfatter(e) (2005). Willow canopies and plant community structure along an Alpine environmental gradient. Arctic, Antarctic and Alpine research. 428-435.
  • Vis forfatter(e) (2005). The relative importance of vegetation cover and abiotic environmental conditions for population dynamic parameters of two alpine plant species. Journal of Ecology. 493-501.
  • Vis forfatter(e) (2005). Simulated climate change altered dominance hierarchies and diversity of an alpine biodiversity hotspot. Ecology. 2047-2054.
  • Vis forfatter(e) (2005). Relationships between species' floral traits and pollinator visitation in a temperate grassland. Oecologia. 586-594.
  • Vis forfatter(e) (2005). Does forest gap size affects population size, plant size, reproductive success and pollinator visitation in Lantana camara, a tropical invasive shrub? Forest Ecology and Management. 329-338.
  • Vis forfatter(e) (2004). No evidence for a role of pollinator discrimination in causing selection on flower size through female reproduction. Oikos. 558-564.
  • Vis forfatter(e) (2004). Habitat dependent nurse-effects of the dwarf shrub Dryas octopetala on alpine and arctic plant community structure. Écoscience. 410-420.
  • Vis forfatter(e) (2003). Quantitative importance of staminodes for female reproductive success in Parnassia palustris under contrasting environmental conditions. Canadian Journal of Botany. 49-56.
  • Vis forfatter(e) (2003). Breeding system, insect flower visitation, and floral traits of two alpine Cerastium species. Arctic, Antarctic and Alpine research. 242-247.
  • Vis forfatter(e) (2002). Effects of willow canopies on species performance in a low-alpine community. Plant Ecology. 157-166.
  • Vis forfatter(e) (2002). Effects of temperature and date of snowmelt on growth, reproduction, and flowering phenology in the arctic/alpine herb, Ranunculus glacialis. Oecologia. 168-175.
  • Vis forfatter(e) (2001). Pollen limitation of reproductive success in two sympatric alpine willows (Salicaceae) with contrasting pollination strategies. American Journal of Botany. 1011-1015.
  • Vis forfatter(e) (2001). Environment-dependent pollen limitation and selection on floral traits in an alpine species. Ecology. 2233-2244.
  • Vis forfatter(e) (2000). Short-term effects of simulated environmental changes on phenology, reproduction, and growth in the late-flowering snowbed herb Saxifraga stellaris L. Écoscience. 201-213.
  • Vis forfatter(e) (1999). Wind to insect pollination ratios and floral traits in five alpine Salix species. Canadian Journal of Botany. 556-563.
  • Vis forfatter(e) (1999). Responses of tundra plants to experimental warming: meta-analysis of the International Tundra Experiment. Ecological Monographs. 491-511.
  • Vis forfatter(e) (1999). Environmentally-dependent pollen limitation on seed production in alpine Ranunculus acris. Écoscience. 173-179.
  • Vis forfatter(e) (1999). Effects of temperature on performance and phenotypic selection of plant traits in alpine Ranunculus acris. Oecologia. 242-251.
  • Vis forfatter(e) (1999). Effects of temperature and natural disturbance on growth, reproduction, and population density, in the alpine annual hemiparasite Euphrasia frigida. Arctic, Antarctic and Alpine research. 259-263.
  • Vis forfatter(e) (1999). Breeding system and effects of plant size and flowering time on reproductive success in the alpine herb Saxifraga stellaris L. Arctic, Antarctic and Alpine research. 196-201.
  • Vis forfatter(e) (1998). Effects of plant traits on pollen limitation in an early spring flowering herb. Oikos. 491-501.
  • Vis forfatter(e) (1998). Determinants of pollinator activity and flower preference in the early spring blooming Crocus vernus. Acta Oecologica. 155-165.
  • Vis forfatter(e) (1998). Assessment of environmental change effects on performance and density of Bistorta vivipara by multivariate analysis and experimental manipulations. Journal of Ecology. 989-998.
  • Vis forfatter(e) (1997). Response to simulated climate change in an alpine and sub-arctic pollen-risk strategist, Silene acaulis. Global Change Biology. 74-79.
  • Vis forfatter(e) (1997). Limitations on reproduction in alpine Ranunculus acris. Canadian Journal of Botany. 137-144.
  • Vis forfatter(e) (1997). Effects of flowering time and temperature on growth and reproduction in Leontodon autumnalis var. taraxaci, a late-flowering alpine plant. Arctic and Alpine Research. 285-290.
  • Vis forfatter(e) (1996). Flower heliotropism in an alpine population of Ranunculus acris (Ranunculaceae): effects on flower temperature, insect visitation, and seed production. American Journal of Botany. 452-458.
  • Vis forfatter(e) (1996). Factors influencing inter-population variation in Ranunculus acris seed production in an alpine area of southwestern Norway. Ecography. 269-270.
  • Vis forfatter(e) (1994). Intra-seasonal variation in pollination intensity and seed set in an alpine population ofRanunculus acris in southwestern Norway. Ecography. 159-165.
  • Vis forfatter(e) (1994). Influence of climate, time of day and season, and flower density on insect flower visitation in alpine Norway. Arctic and Alpine Research. 66-71.
  • Vis forfatter(e) (1993). Pollination in alpine Norway: flowering phenology, insect visitors, and visitation rates in two plant communities. Canadian Journal of Botany. 1072-1079.
Populærvitenskapelig foredrag
  • Vis forfatter(e) (2010). Honningbienes bidrag til pollinering av ville vekster.
  • Vis forfatter(e) (2004). Plantenes seksualliv.
  • Vis forfatter(e) (2001). Hvorfor har fjellplanter så kjedelige blomster?
Vitenskapelig foredrag
  • Vis forfatter(e) (2018). KD hos bioCEED.
  • Vis forfatter(e) (2011). Relationships between two potential restoration tree species and species richness and abundance in a degraded afromontane forest of Kenya.
  • Vis forfatter(e) (2008). Pollination ecology.
  • Vis forfatter(e) (2007). Prosjekt 154185: Pollineringsinteraksjoner på samfunnsnivå: effekter på planters tiltrekningsevne og reproduksjon.
  • Vis forfatter(e) (2007). Prosjekt 134927: Klimaendringseffekter på artsdiversitet og sammensetning i artsrike alpine områder.
  • Vis forfatter(e) (2007). Manipulating pollinator abundances in natural plant cummunities: impacts on plant reproduction, population growth and species composition.
  • Vis forfatter(e) (2007). Co-flowering species influence the ecological pollinator specialization of plant species.
  • Vis forfatter(e) (2006). Effects of simulated environmental change on epidermal UV-B transmission and concentration of phenolic compounds in three alpine plant species.
  • Vis forfatter(e) (2005). Simulated climate change altered dominance hierarchies and diversity of a mountain biodiversity-hotspot.
  • Vis forfatter(e) (2005). Is there a typical alpine flower?
  • Vis forfatter(e) (2005). Alien invasion and habitat disturbance: effects on pollination and reproduction in a native boreal forest herb.
  • Vis forfatter(e) (2005). Alien impacts on pollination of natives.
  • Vis forfatter(e) (2004). Effekter av klimaforandring på artsdiversitet i alpine reinrosesamfunn i Sør-Norge.
  • Vis forfatter(e) (2004). Does a highly attractive exotic species affect pollinator visitation and reproductive success of a boring boreal forest herb?
  • Vis forfatter(e) (2002). Quantitative importance of the staminodes for female reproductive success in Parnassia palustris L.
  • Vis forfatter(e) (2001). Pollinators care, but plants don’t: selection on the alpine pollination syndrome.
  • Vis forfatter(e) (2001). ITEX work at Finse.
  • Vis forfatter(e) (2001). Community responses to experimental warming at Finse.
  • Vis forfatter(e) (1999). Temperature-based variation in selection on floral traits in alpine Ranunculus acris.
  • Vis forfatter(e) (1999). Presentation of ITEX.
  • Vis forfatter(e) (1999). Pollen limitation and phenotypic selection in alpine Ranunculus acris.
  • Vis forfatter(e) (2012). Overplaying the role of honey bees as pollinators: a comment on Aebi and Neumann (2011). Trends in Ecology & Evolution. 141-142.
Vitenskapelig antologi/Konferanseserie
  • Vis forfatter(e) (2000). The Scandinavian Association for Pollination Ecology Honors Knut Fægri. Det Norske Videnskaps-Akademi.
  • Vis forfatter(e) (2013). Kunnskapsstatus for insektpollinering i Norge - betydningen av det komplekse samspillet mellom planter og insekter. Artsdatabanken.
  • Vis forfatter(e) (2004). Øvingshefte i plantediversitet – BOT100.
  • Vis forfatter(e) (2003). Øvingshefte i plantediversitet – B100.
  • Vis forfatter(e) (2002). Øvingshefte i botanikk – B100.
Populærvitenskapelig artikkel
  • Vis forfatter(e) (2015). Klimaendringer og plante-pollinator interaksjoner. Biolog. 29-34.
  • Vis forfatter(e) (2008). Avskoging i Øst Afrika og på Madagaskar: suksesjon, samfunnsstruktur, og artskomposisjon i et restaureringsperspektiv. Årsmelding, Institutt for naturforvaltning. 20-23.
  • Vis forfatter(e) (2006). Effekter av klimaendringer på artsmangfoldet i alpine plantesamfunn. Årsmelding, Institutt for naturforvaltning. 8-10.
  • Vis forfatter(e) (1997). Økologiske effekter av global oppvarming på alpine planter. Naturen. 5-11.
  • Vis forfatter(e) (2010). Blomster og bier i krise. Aftenposten (morgenutg. : trykt utg.).
  • Vis forfatter(e) (2010). Blomster og bier i krise. Aftenposten Innsikt.
  • Vis forfatter(e) (1999). Våre sårbare fjellområder. Bergens Tidende.
  • Vis forfatter(e) (1995). Community pollination and reproductive ecology of Ranunculus acris in an alpine area of south-west Norway.
  • Vis forfatter(e) (2011). Ville vært en katastrofe å legge ned studiet.
  • Vis forfatter(e) (2011). Fortsatt for få søkere, til tross for garantert jobb.
  • Vis forfatter(e) (2010). Luker vekk navn fra listen over verdens planter.
  • Vis forfatter(e) (2010). Bier på retrett.
  • Vis forfatter(e) (2009). 150 år siden evolusjonsteorien.
  • Vis forfatter(e) (2008). Fauna-forsker finner farer.
  • Vis forfatter(e) (2007). Bare surr for biene.
  • Vis forfatter(e) (2005). Pollineringseksperiment på Ryghsetra.
  • Vis forfatter(e) (2002). Mer skog og mindre vidde.
  • Vis forfatter(e) (2001). Mistelteinen må få leve.
  • Vis forfatter(e) (2001). Mistelteinen er felt.
  • Vis forfatter(e) (2001). Kamp for misteltein.
  • Vis forfatter(e) (2020). Trumfer klimakrisen over biodiversitetskrisen?
  • Vis forfatter(e) (2009). Klimaeffektforskning på Finse.
  • Vis forfatter(e) (2007). Om rød snø i fjellet på sommeren.
  • Vis forfatter(e) (2007). Om dårlig sommer, humler og planters frøproduksjon.
  • Vis forfatter(e) (2007). Om bie-død og konsekvenser.
  • Vis forfatter(e) (2007). Klimaforandring og pollinering.
  • Vis forfatter(e) (2007). Biene i trøbbel.
  • Vis forfatter(e) (2005). Pollineringseksperiment på Ryghsetra.
  • Vis forfatter(e) (2004). Om aliens, blomster og bier.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vis forfatter(e) (2017). Carbon Stocks and Plant Diversity in Different Land Cover Types of Tanzania. 24 sider.
  • Vis forfatter(e) (2007). Vegetasjonen på byfjellene i et varmere klima. 8 sider.
  • Vis forfatter(e) (2000). Is there a typical alpine flower? 10 sider.
  • Vis forfatter(e) (2000). Environment modifies phenotypic selection on flower diameter in alpine Saxifraga stellaris. 8 sider.
  • Vis forfatter(e) (1998). Plantelivet på Finse i et varmere klima. 1 sider.
  • Vis forfatter(e) (1998). Blomster på soljakt. 1 sider.
  • Vis forfatter(e) (1997). Effekter av temperatur og forstyrrelse på reproduksjon hos den ettårige fjelløyentrøst, Euphrasia frigida Pugsley, Finse. 5 sider.
  • Vis forfatter(e) (1997). Blomster, fluer og frø. 2 sider.
  • Vis forfatter(e) (2005). Alien invasion and habitat disturbance: effects on pollination and reproduction in a native boreal forest herb. 195.
  • Vis forfatter(e) (2010). Plant-pollinator interactions - the impact of invasive species.
  • Vis forfatter(e) (2007). Natur ute av fase ? den triste historien om bien og blomsten.
  • Vis forfatter(e) (2005). The importance of biodiversity, flower size and competition vs facilitation for pollinator attraction at plant community scale.
  • Vis forfatter(e) (2005). Does a highly attractive alien species affect pollinator visitation and reproductive success of a native boreal forest herb?
  • Vis forfatter(e) (2005). Are alien species a threat to biodiversity. A review of studies on plant – pollinator interactions between alien and native plant species.
  • Vis forfatter(e) (2004). Pollination interactions in ecosystems.
  • Vis forfatter(e) (2019). Author Correction: Warming shortens flowering seasons of tundra plant communities. Nature Ecology and Evolution. 709-709.
Vitenskapelig oversiktsartikkel/review
  • Vis forfatter(e) (2012). Global assessment of experimental climate warming on tundra vegetation: heterogeneity over space and time. Ecology Letters. 164-175.
  • Vis forfatter(e) (2009). How does climate warming affect plant-pollinator interactions? Ecology Letters. 184-195.
  • Vis forfatter(e) (2000). Knut Fægri, animals on flowers, and the Scandinavian Assocciation for Pollination Ecology. 9-10.
  • Vis forfatter(e) (2010). Natural forest regeneration and succession: an option for restoration of degraded forests. ?. 20-28.
  • Vis forfatter(e) (2006). Om klima, blomster og bier. Cicerone. 17-19.

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