Jan Ohlberger

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Research topics:

Population and community dynamics: The dynamics of structured populations with respect to intra- and interspecific interactions such as predation, cannibalism, competition, and the effect of abiotic environmental factors, specifically temperature.

Life-history traits: Selective pressures shaping life-history evolution, for instance the evolutionary response of populations to increased mortality rates caused by exploitation or pathogens.

Ecological diversification: Ecological factors facilitating evolutionary divergence and the traits involved in adaptive diversification, particularly metabolic adaptation along environmental temperature gradients.

Metabolic scaling: Effects of temperature on the scaling of metabolic rate with body mass, and how fish species differ in metabolic scaling exponents.

Swimming energetics: The energetics of fish swimming, especially the effects of temperature, body size and morphology on standard and active metabolic rates.

Research projects: 

Assessment of the effects of oil exposure on the population dynamics and abundances of Atlantic cod and haddock using state-space models (current)

Modelling ecosystems under climate change: Windermere as a model lake system (completed)

Collaborations:

Applying a new demographic framework to understand and project consequences of climate change in size- and age-structured populations (starting 2013)

Risk, endogenous preferences, and investment behavior in Norwegian fisheries (starting 2013)

Homepage

Full list of publications

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Tags: Animal physiology, Evolutionary ecology, Food web dynamics, Life-history evolution, Local adaptation, Thermal physiology, Ecophysiology, Fish, Population dynamics, Predator-prey interactions

Publications

  • Ohlberger, Jan Philipp; Langangen, Øystein; Winfield, Ian J & Vindenes, Yngvild (2019). The importance of variation in offspring body size for stability in cannibalistic populations. Oikos. ISSN 0030-1299. 129(1), p. 59–69. doi: 10.1111/oik.05507. Full text in Research Archive
  • Langangen, Øystein; Olsen, Erik Joel Steinar; Stige, Leif Christian; Ohlberger, Jan Philipp; Yaragina, Natalia A. & Vikebø, Frode Bendiksen [Show all 9 contributors for this article] (2017). The effects of oil spills on marine fish: Implications of spatial variation in natural mortality. Marine Pollution Bulletin. ISSN 0025-326X. 119(1), p. 102–109. doi: 10.1016/j.marpolbul.2017.03.037. Full text in Research Archive
  • Langangen, Øystein; Ohlberger, Jan; Stige, Leif C.; Durant, Joel M.; Ravagnan, Elisa & Stenseth, Nils C. [Show all 7 contributors for this article] (2017). Cascading effects of mass mortality events in Arctic marine communities. Global Change Biology. ISSN 1354-1013. 23(1), p. 283–292. doi: 10.1111/gcb.13344. Full text in Research Archive
  • Edeline, Eric; Groth, Andreas; Cazelles, Bernard; Claessen, David; Winfield, Ian J. & Ohlberger, Jan Philipp [Show all 9 contributors for this article] (2016). Pathogens trigger top-down climate forcing on ecosystem dynamics. Oecologia. ISSN 0029-8549. 181, p. 519–532. doi: 10.1007/s00442-016-3575-8.
  • Patin, Rémi; Rogers, Lauren & Ohlberger, Jan Philipp (2016). Using a state-space population model to detect age-dependent species interactions. Canadian Journal of Fisheries and Aquatic Sciences. ISSN 0706-652X. 73(5), p. 811–818. doi: 10.1139/cjfas-2015-0004.
  • Ohlberger, Jan Philipp & Langangen, Øystein (2015). Population resilience to catastrophic mortality events during early life stages. Ecological Applications. ISSN 1051-0761. 25(5), p. 1348–1356. doi: 10.1890/14-1534.1.sm.
  • Ohlberger, Jan; Thackeray, Stephen J.; Winfield, Ian J.; Maberly, Stephen C. & Vøllestad, Leif Asbjørn (2014). When phenology matters: Age-size truncation alters population response to trophic mismatch. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 281(1793). doi: 10.1098/rspb.2014.0938.
  • Ohlberger, Jan; Rogers, Lauren & Stenseth, Nils Christian (2014). Stochasticity and determinism: How density-independent and density-dependent processes affect population variability. PLOS ONE. ISSN 1932-6203. 9(6). doi: 10.1371/journal.pone.0098940. Full text in Research Archive
  • Hidalgo, Manuel; Olsen, Esben Moland; Ohlberger, Jan; Saborido-Rey, Francisco; Murua, Hilario & Piñeiro, Carmen [Show all 7 contributors for this article] (2014). Contrasting evolutionary demography induced by fishing: The role of adaptive phenotypic plasticity. Ecological Applications. ISSN 1051-0761. 24(5), p. 1101–1114. doi: 10.1890/12-1777.1.
  • Vindenes, Yngvild; Edeline, Eric; Ohlberger, Jan; Langangen, Øystein; Winfield, Ian J. & Stenseth, Nils Christian [Show all 7 contributors for this article] (2014). Effects of climate change on trait-based dynamics of a top predator in freshwater ecosystems. The American Naturalist. ISSN 0003-0147. 183(2), p. 243–256. doi: 10.1086/674610. Full text in Research Archive
  • Ohlberger, Jan (2013). Climate warming and ectotherm body size - from individual physiology to community ecology. Functional Ecology. ISSN 0269-8463. 27(4), p. 991–1001. doi: 10.1111/1365-2435.12098.
  • Ohlberger, Jan; Brannström, Åke & Dieckmann, Ulf (2013). Adaptive Phenotypic Diversification along a Temperature-Depth Gradient. The American Naturalist. ISSN 0003-0147. 182(3), p. 359–373. doi: 10.1086/671169. Full text in Research Archive
  • Ohlberger, Jan; Mehner, Thomas; Staaks, Georg & Hölker, F. (2012). Intraspecific temperature dependence of the scaling of metabolic rate with body mass in fishes and its ecological implications. Oikos. ISSN 0030-1299. 121, p. 245–251. doi: 10.1111/j.1600-0706.2011.19882.x.
  • Ohlberger, Jan; Villar, Jaime Otero; Edeline, Eric; Winfield, Ian J.; Stenseth, Nils Christian & Vøllestad, Leif Asbjørn (2012). Biotic and abiotic effects on cohort size distributions in fish. Oikos. ISSN 0030-1299. doi: 10.1111/j.1600-0706.2012.19858.x.
  • Ohlberger, Jan; Langangen, Øystein; Stenseth, Nils Christian & Vøllestad, Leif Asbjørn (2012). Community-Level Consequences of Cannibalism. The American Naturalist. ISSN 0003-0147. 180(6), p. 791–801. doi: 10.1086/668080. Full text in Research Archive
  • Mehner, Thomas; Busch, Susan; Clemmesen, Catriona; Helland, Ingeborg Palm; Hölcker, Franz & Ohlberger, Jan [Show all 7 contributors for this article] (2012). Ecological commonalities among pelagic fishes: comparison of freshwater ciscoes and marine herring and sprat. Marine Biology. ISSN 0025-3162. 159, p. 2583–2603. doi: 10.1007/s00227-012-1922-9.
  • Ohlberger, Jan; Langangen, Øystein; Edeline, Eric; Claessen, David; Winfield, Ian J. & Stenseth, Nils Christian [Show all 7 contributors for this article] (2011). Stage-specific biomass compensation by juveniles in response to increased adult mortality in a wild fish population. Ecology. ISSN 0012-9658. 92(12), p. 2175–2182. doi: 10.1890/11-0410.1.
  • Langangen, Øystein; Edeline, Eric; Ohlberger, Jan; Winfield, Ian J.; Fletcher, Janice M. & James, J. Ben [Show all 8 contributors for this article] (2011). Six decades of pike and perch population dynamics in Windermere. Fisheries Research. ISSN 0165-7836. 109, p. 131–139. doi: 10.1016/j.fishres.2011.01.029.
  • Ohlberger, Jan; Edeline, Eric; Vøllestad, Leif Asbjørn; Stenseth, Nils Christian & Claessen, David (2011). Temperature-Driven Regime Shifts in the Dynamics of Size-Structured Populations. The American Naturalist. ISSN 0003-0147. 177(2), p. 211–223. doi: 10.1086/657925.
  • Ohlberger, Jan; Langangen, Øystein; Edeline, Eric; Olsen, Esben Moland; Winfield, Ian J. & Fletcher, Janice M. [Show all 9 contributors for this article] (2011). Pathogen-induced rapid evolution in a vertebrate life-history trait. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 278(1702), p. 35–41. doi: 10.1098/rspb.2010.0960.

View all works in Cristin

  • Bellier, Edwige; Langangen, Øystein & Ohlberger, Jan Philipp (2017). Stage-dependent interactions of two harvested competitors.
  • Ohlberger, Jan (2014). Adaptive phenotypic diversification along a temperature-depth gradient – an evolutionary model based on laboratory and field data.
  • Ohlberger, Jan (2013). Stochasticity and determinism: How density-independent and density-dependent processes affect population variability.
  • Vindenes, Yngvild; Ohlberger, Jan; Langangen, Øystein & Winfield, Ian J. (2013). How does carrying capacity depend on temperature? A density dependent IPM for pike (Esox lucius).
  • Vindenes, Yngvild; Edeline, Eric; Ohlberger, Jan; Langangen, Øystein; Winfield, Ian J. & Stenseth, Nils Christian [Show all 7 contributors for this article] (2013). Effects of climate warming on trait-based dynamics in a freshwater top predator.
  • Vindenes, Yngvild; Edeline, Eric; Ohlberger, Jan; Langangen, Øystein; Winfield, Ian J. & Stenseth, Nils Christian [Show all 7 contributors for this article] (2013). Trait-based dynamics of a top predator in freshwaters and effects of climate change.
  • Ohlberger, Jan (2012). Biomass overcompensation revealed by long-term time series data from Windermere.
  • Ohlberger, Jan (2012). Ecological and evolutionary responses to size-selective mortality caused by a disease outbreak in Windermere perch.
  • Ohlberger, Jan (2012). Cannibalism effects on species interactions and community structure.
  • Ohlberger, Jan (2012). Community-level consequences of cannibalism.
  • Ohlberger, Jan (2012). Ecological and evolutionary responses to size-selective mortality – a disease outbreak in Windermere perch as a large-scale natural experiment.
  • Rouyer, Tristan Alexander; Sadykov, Alexander; Ohlberger, Jan & Stenseth, Nils Christian (2012). Does increasing mortality change the response of fish populations to environmental fluctuations? Ecology Letters. ISSN 1461-023X. 15(7), p. 658–665. doi: 10.1111/j.1461-0248.2012.01781.x.
  • Ohlberger, Jan (2011). Stage-specific biomass overcompensation by juveniles in response to increased adult mortality.
  • Ohlberger, Jan; Edeline, Eric; Vøllestad, Leif Asbjørn; Stenseth, Nils Christian & Claessen, David (2011). PR: Temperature Driven Regime Shifts in the Dynamics of Size-Structured Populations. [Internet]. American Society of Naturalists.
  • Ohlberger, Jan (2010). An empirically calibrated model of adaptive diversification along an environmental temperature‐depth gradient.
  • Ohlberger, Jan (2010). Temperature-driven regime shifts in size-structured populations.
  • Ohlberger, Jan (2009). A physiological pathway in coregonid speciation.

View all works in Cristin

Published May 26, 2011 9:50 PM - Last modified Apr. 3, 2018 2:22 PM

Projects

Research groups