Publications Brathen, K.A., Ims, R.A., Yoccoz, N.G., Fauchald, P., Tveraa, T., & Hausner, V.H. (2007) Induced shift in ecosystem productivity ? Extensive scale effects of abundant large herbivores. Ecosystems , 10 , 773-789. abstract Brathen, K.A., Gonzalez, V.T., Iversen, M., Killengreen, S., Ravolainen, V.T., Ims, R.A., & Yoccoz, N.G. (2007) Endozoochory varies with ecological scale and context. Ecography , 30 , 308-320. abstract Fauchald, P., Rodven, R., Bardsen, B.J., Langeland, K., Tveraa, T., Yoccoz, N.G., & Ims, R.A. (2007) Escaping parasitism in the selfish herd: age, size and density-dependent warble fly infestation in reindeer. Oikos , 116 , 491-499. abstract Fauchald, P., Tveraa, T., Henaug, C., & Yoccoz, N. (2004) Adaptive regulation of body reserves in reindeer, Rangifer tarandus: a feeding experiment. Oikos , 107 , 583-591. abstract 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. abstract Ims, R.A. & Fuglei, E. (2005) Trophic interaction cycles in tundra ecosystems and the impact of climate change. Bioscience , 55 , 311-322. pdf Ims, R.A., Yoccoz, N.G., Brathen, K.A., Fauchald, P., Tveraa, T., & Hausner, V. (2007) Can reindeer overabundance cause a trophic cascade? Ecosystems , 10 , 607-622. abstract Killengreen, S.T., Ims, R.A., Yoccoz, N.G., Brathen, K.A., Henden, J.A., & Schott, T. (2007) Structural characteristics of a low Arctic tundra ecosystem and the retreat of the Arctic fox. Biological Conservation , 135 , 459-472. abstract Tveraa, T., Fauchald, P., Henaug, C., & Yoccoz, N.G. (2003) An examination of a compensatory relationship between food limitation and predation in semi-domestic reindeer. Oecologia , 137 , 370-376. pdf Tveraa, T., Fauchald, P., Yoccoz, N.G., Ims, R.A., Aanes, R., & Hogda, K.A. (2007) What regulate and limit reindeer populations in Norway? Oikos , 116 , 706-715. abstract