We have opportunities for both master and bachelor projects, as well as smaller term projects focused on various aspects of the moth-mountain birch ecosystem. Whether you are keen on field work, laboratory experiments or remote sensing and GIS, there will be something of interests. Take a look at our research activities for more details.
Current opportunities (spring 2018)
Student projects will be posted here as they become available, but you are always welcome to contact us with your own ideas. Please include your CV at first contact.
Topics of recent student projects
Ragnhild Bjørkås (2017). Spatio-temporal dynamics in breeding occurrence of passerine birds in subarctic birch forest. MSc thesis. UIT Arctic University of Norway.
Petter Bernhard Carlsen (2017). Numerical responses of wood living beetles to dead birch left by moth outbreak in northern Scandinavia. MSc thesis. Norwegian University of Life Sciences (NMBU).
Ole Petter L. Vindstad (2015). Cyclically outbreaking geometrid moths in sub-arctic mountain birch forest: the organization and impacts of their interactions with animal communities. PhD thesis, UIT Arctic University of Norway.
Jakob Iglhaut (2014). Can map-derived environmental data explain fine-scale mosaic created by gepmetrid moth defoliation in northern-boreal birch forests? BSc thesis in International Forest Ecosystem Management, University of Applied Sciences in Eberswalde, Germany.
Moritz Klinghardt (2013). Short term effects of clear cutting on the regeneration of sub-arctic birch forest following severe outbreaks by geometrid moths. MSc thesis in Biology, UIT Arctic University of Norway.
Tino Schott (2013). Determinants and effects of moth population dynamics in altitudinal gradients in northern Fennoscandia. PhD thesis, UIT Arctic University of Norway.
Sabrina Schultze (2012). Do saproxylic beetles respond numerically to rapid changes in dead wood availability forllowing moth outbreaks? MSc thesis in Biology, UIT Arctic University of Norway.
Our data sets are categorized in the following way
- Soil: Data sets on soil nutrients and soil biota.
- Ground vegetation: Data sets on ground vegetation abundance mostly based on point intercept surveys.
- Forest: Data sets on forest structure and forest health.
- Moth: Data sets on moth abundance and moth phenology.
- Parasitoids: Data sets on parasitism rates and parasitoid phenology
- Invertebrates: Data sets on beetles and flies captured using window traps, and various invertebrates captured using pitfall trapping
- Birds: Data sets on birds including breeding performace of passerine birds in nestboxes and point censuses for bird communities.
- Mammal herbivores: Abundance indices on mammalian herbivores (rodents, reindeer, sheep) based on rodent trapping and pellet counts.
- Climate: Data sets on climatic variables, mostly temperature data recorded using ibutton loggers.
- Remote sensing and camera traps: Data sets based on remote sensing such as MODIS satellite imagery, aerial photos and camera traps.
Browse for metadata here
Vindstad, O.P.L., Jepsen. J.U., Yoccoz, N.G., Bjørnstad, O., Mesquita, M. & Ims, R.A. Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages. Journal of Animal Ecology (Accepted Dec 9th 2018)
Vindstad, O.P.L., Jepsen, J.U., Ek, M., Pepi, A. & Ims, R.A. Can novel pest outbreaks drive ecosystem transitions in northern-boreal birch forest? J. Ecology accepted. DOI: 10.1111/1365-2745.13093
Metcalfe, D.B., Cherif, M., Jepsen, J.U., Vindstad, O.P.L., Kristensen, J.Å., & Belsing, U. (2018). Ecological stoichiometry and nutrient partitioning in two insect herbivores responsible for large-scale forest disturbance in the Fennoscandian subarctic. Ecological Entomology DOI: 10.1111/een.12679
Vindstad, O.P.L., Jepsen, J.U., Klinghardt, M., Ek, M. & Ims, R.A. (2017) Salvage logging of mountain birch after geometrid outbreaks: ecological context determines management outcomes. Forest Ecology and Management 405. PDF
Pepi, A., Vindstad, O.P.L., Ek, M. Jepsen, J.U. (2017). Elevationally biased avian predation as a contributor to the spatial distribution of geometrid moth outbreaks in sub-arctic mountain birch forest. Ecological Entomology Early View.
Jepsen, J.U., Vindstad, O.P.L., Barraquand, F., Ims, R.A., Yoccoz, N.G. (2016). Continental scale travelling waves in forest geometrids in Europe: an evaluation of the evidence. Journal of Animal Ecology 85, 385–390. Link
Aarnes, S.G., Fløystad, I., Schregel, J., Vindstad, O.P.L., Jepsen, J.U., Eiken, H.G., Ims, R.A. & Hagen, S.B. (2015). Identification and evaluation of 21 novel microsatellite markers from the autumnal moth (Epirrita autumnata) (Lepidoptera: Geometridae). International Journal of Molecular Sciences 16, 22541-22554; doi:10.3390/ijms160922541. PDF
Vindstad, O.P.L., Jepsen, J.U. & Ims, R.A. (2015). Resistance of a sub-arctic bird community to severe forest damage caused by geometrid moth outbreaks. European Journal of Forest Research 134 (4): 725-736 .PDF
Vindstad. O.P.L., Schultze, S., Jepsen, J.U., Biuw, M., Kapari, L., Sverdrup-Thygeson, A. & Ims, R.A. (2014). Numerical responses of saproxylic beetles to rapid increases in dead wood availability following geometrid moth outbreaks in sub-arctic mountain birch forest. Plos One 9 (6):e99624. doi:10.1371/journal.pone.0099624. PDF
Biuw, M., Jepsen J.U., Cohen, J., Markkola, A., Aikio, S., Ahonen, S., Wäli, P.R., Tejesvi, M., Vindstad, O.P.L., Niemelä, P. and Ims, R.A. (2014). Long-term impacts of contrasting management of large ungulates in the arctic tundra-forest ecotone: Ecosystem structure and climate feedback. Ecosystems 17 (5):890-905. doi:10.1007/s10021-014-9767-3. PDF
Jepsen, J.U., Biuw, M., Ims, R.A., Kapari, L., Schott, T., Vindstad, O.P.L., Hagen, S.B. (2013) Ecosystem impacts of a range expanding forest defoliator at the forest-tundra ecotone. Ecosystems 16: 561-575, DOI: 10.1007/s10021-012-9629-9. PDF
Vindstad, O.P.L., Schott, T., Hagen, S.B., Jepsen, J.U., Kapari, L., Ims, R.A. (2013) How rapidly do invasive birch forest geometrids recruit larval parasitoids? – Insights from comparison with a sympatric native geometrid. Biological Invasions 15: 1573-1589, DOI 10.1007/s10530-012-0393-8. PDF
Schott, T., Kapari, L., Hagen, S.B., Vindstad, O.P.L., Jepsen, J.U., Ims, R.A. (2013) Predator release from invertebrate generalists does not explain geometrid moth outbreaks at high altitudes. Canadian Entomologist 145: 184-192. PDF
Karlsen, S.R., Jepsen, J.U., Odland, A., Ims, R.A., Elvebakk, A. (2013). Outbreaks by canopy feeding geometrid moth cause state-dependent shifts in understorey plant communities. Oecologia 173: 859-870. PDF
Schott T., Ims R.A., Hagen S.B. & Yoccoz N.G. (2012). Sources of variation in larval parasitism of two symmetrically outbreaking birch forest defoliators. Ecological Entomology, 37, 471-479. PDF
Vindstad, O.P.L., Hagen, S.B., Jepsen, J.U., Kapari, L., Schott, T., Ims, R.A. (2011) Phenological diversity in the interactions between winter moth (Operophtera brumata) larvae and parasitoid wasps in sub-arctic mountain birch forest. Bull Entomol. Res. 101: 705-714. PDF
Jepsen, J.U., Kapari, L., Hagen, S.B., Schott, T., Vindstad, O.P.L., Nilssen, A.C. & Ims, R.A. (2011). Rapid northwards expansion of a forest insect pest attributed to spring phenology matching with sub-arctic birch. Global Change Biology 17: 2071-2083. PDF
Vindstad, O.P.L., Schott, T., Hagen, S.B., Ims, R.A. (2010). Spatially patterned guild structure in larval parasitoids of cyclically outbreaking winter moth populations. Ecological Entomology 35: 456-463. PDF
Schott, T., Hagen, S.B., Ims, R.A., Yoccoz, N.G. (2010). Are population outbreaks in sub-arctic geometrids terminated by larval parasitoids? Journal of Animal Ecology 79: 701-708. PDF
Hagen, S.B., Jepsen, J.U, Schott, T., Ims, R.A. (2010). Spatially mis-matched trophic dynamics: cyclically outbreaking geometrids and threir larval parasitoids. Biology Letters 6:566-569. PDF
Jepsen, J.U., Hagen, S.B., Karlsen, S.R., Ims, R.A. (2009). Phase-dependent outbreak dynamics of geometrid moth linked to host plant phenology. Proc. R. Soc. Lond. 276:4119-4128. PDF
Jepsen, J.U., Hagen, S.B., Høgda, K.A., Ims, R.A., Karlsen, S.R., Tømmervik, H., Yoccoz, N.G. (2009). Monitoring the spatial dynamics of geometrid moth outbreaks in birch forest using MODIS-NDVI data. Remote Sensing of Environment 113: 1939-1947. PDF
Archetti, M., Döring, T.F., Hagen, S.B, et al. (2009). Unravelling the evolution of autumn colours: an interdisciplinary approach. TREE 24(3): 166-173. PDF
Hansen, N.M., Ims, R.A., Hagen, S.B. (2009). No impact of pupal predation on the altitudinal distribution of autumnal moth and winter moth (lepidoptera: geometridae) in sub-arctic birch forest. Environmental Entomology 38(3): 627-632. PDF
Hagen, S.B., Jepsen, J.U., Yoccoz, N.G., Ims, R.A. (2008). Anisotropic patterned population synchrony in climatic gradients indicates nonlinear climatic forcing. Proc. R. Soc. Lond. 275: 1509-1515. PDF
Jepsen, J.U., Hagen, S.B., Ims, R.A., Yoccoz, N.G. (2008). Climate change and outbreaks of the geometrids Operophtera brumata and Epirrita autumnata in sub-arctic birch forest: evidence of a recent outbreak range expansion. Journal of Animal Ecology 77: 257-264. PDF
Hagen SB, Ims RA, Yoccoz NG, Sørlibråten O. (2008). Fluctuating asymmetry as an indicator of elevation stress and distribution limits in mountain birch (Betula pubescens). Plant Ecology 195: 157-163. PDF
Hagen, S.B., Jepsen, J.U., Ims, R.A., Yoccoz, N.G. (2007). Shifting altitudinal distribution of outbreak zones of winter moth (Operophtera brumata) in sub-arctic birch forest: A response to recent climate warming? Ecography 30:299-307. PDF
Hagen S. B., Sørlibråten, O., Ims R. A., Yoccoz, N. G. (2006). Density-Dependent melanism in winter moth larvae (Lepidoptera: Geometridae): A countermeasure against parasitoids? Environmental Entomology 35(5): 1247-1253. PDF
Mjaaseth, R.R., Hagen, S.A., Yoccoz, N.G., Ims, R.A. (2005). Phenology and abundance in relation to climatic variation in a sub-arctic insect-herbivore mountain birch system. Oecologia 145: 53-65. PDF
Ims R. A. , Yoccoz N. G. , Hagen S. B. (2004). Do sub-Arctic winter moth populations in coastal birch forest exhibit spatially synchronous dynamics? Journal of Animal Ecology 73 (6): 1129-1136. PDF
Hagen, S.B. , Debeausse, S. , Yoccoz, N.G. , Folstad, I. (2004). Autumn coloration as a signal of tree condition. Proceedings of the Royal Society of London Series B 271: S184-S185 (Suppl.). PDF
Hagen, S.B. , Ims, R.A., Yoccoz, N.G. (2003). Density-dependent melanism in sub-arctic populations of winter moth larvae (Operophtera brumata) . Ecological Entomology 28 (6): 659-665. PDF
Hagen, S.B. , Folstad, I., Jakobsen, S.W. (2003). Autumn colouration and herbivore resistance in mountain birch (Betula pubescens). Ecology Letters 6 (9): 807-811. PDF