Torbjørn Håkan Ergon

Associate Professor / Director of Finse Alpine Research Centre
Image of Torbjørn Håkan Ergon
Norwegian version of this page
Phone +47-22857311
Mobile phone +47-92602138
Room 4605
Visiting address Kristine Bonnevies hus 0371 OSLO Department of Biology Blindernveien 31
Postal address University of Oslo PO Box 1066 Blindern 0316 OSLO Department of biology NORWAY

Research interests

As a population ecologist my research focuses on trying to understand variation in life-history traits and demographic rates within populations and link this to population level patterns and processes such as delayed density dependence. I use both theoretical and empirical approaches, and I am particularly interested in using and developing methods and statistical models to estimate (correlated) distributions of latent life-history traits within populations. This work is also highly relevant for selection processes in an evolutionary context, and I aim to contribute towards our understanding of the evolution of phenotypic plasticity in life-history traits.

Tags: Ecological statistics, Capture-recapture, Small rodents, Seabirds, Life-history theory, Population dynamics


  • Nater, Chloé Rebecca; Rustadbakken, Atle; Ergon, Torbjørn; Langangen, Øystein; Moe, S. Jannicke; Vindenes, Yngvild; Vøllestad, Leif Asbjørn & Aass, Per (2018). Individual heterogeneity and early life conditions shape growth in a freshwater top predator. Ecology.  ISSN 0012-9658.  99(5), s 1011- 1017 . doi: 10.1002/ecy.2178
  • Ergon, Torbjørn & Ergon, Rolf (2017). When three traits make a line: evolution of phenotypic plasticity and genetic assimilation through linear reaction norms in stochastic environments. Journal of Evolutionary Biology.  ISSN 1010-061X.  30(3), s 486- 500 . doi: 10.1111/jeb.13003 Full text in Research Archive. Show summary
  • Sengupta, Sagnik; Ergon, Torbjørn & Leinaas, Hans Petter (2017). Thermal plasticity in postembryonic life history traits of a widely distributed Collembola: Effects of macroclimate and microhabitat on genotypic differences. Ecology and Evolution.  ISSN 2045-7758.  7(19), s 8100- 8112 . doi: 10.1002/ece3.3333 Full text in Research Archive.
  • Liow, Lee Hsiang & Ergon, Torbjørn (2016). Fitting ancestral age-dependent speciation models to fossil data, In Warren D. Allmon & Margaret M. Yacobucci (ed.),  Species and Speciation in the Fossil Record.  University of Chicago Press.  ISBN 9780226377445.  Chapter 6.  s 198 - 216
  • Sengupta, Sagnik; Ergon, Torbjørn & Leinaas, Hans Petter (2016). Genotypic differences in embryonic life history traits of Folsomia quadrioculata (Collembola: Isotomidae) across a wide geographical range. Ecological Entomology.  ISSN 0307-6946.  41(1), s 72- 84 . doi: 10.1111/een.12270
  • Schnug, Lisbeth; Ergon, Torbjørn; Jakob, Lena; Scott-Fordsmand, Janeck J; Joner, Erik & Leinaas, Hans Petter (2015). Responses of earthworms to repeated exposure to three biocides Applied singly and as a mixture in an agricultural field. Science of the Total Environment.  ISSN 0048-9697.  505, s 223- 235 . doi: 10.1016/j.scitotenv.2014.09.089
  • Ergon, Torbjørn & Gardner, Beth (2014). Separating mortality and emigration: modelling space use, dispersal and survival with robust-design spatial capture–recapture data. Methods in Ecology and Evolution.  ISSN 2041-210X.  5(12), s 1327- 1336 . doi: 10.1111/2041-210X.12133

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  • Moghadam, Maunya D. & Ergon, Torbjørn (2015). Estimating the animal movements from lightbased data by using state-space modeling.
  • Arce Gonzalez, Fernando & Ergon, Torbjørn (2014). Spatiotemporal distribution of a small mammal assemblage at Finse: A methodological perspective.
  • Ergon, Torbjørn (2014). Ghosts, demons and elusive species; Adaptive multi-method occupancy sampling for monitoring of multiple species.

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Published Nov. 3, 2010 3:26 PM - Last modified Dec. 14, 2012 11:25 PM