All Stories

  1. Vegetation and climate impacts on active layer thickness in palsas: insights from 13 years of field course data

    Article • Nordia Geographical Publications, May 2026, Nordia Geographical Publications

    Professor Jan Hjort

  2. Greater Thermal Plasticity Toward Heterogeneous Range‐Edge Environments of Three Hypericum Species

    Article • Ecology and Evolution, April 2026, Wiley

    Professor Jan Hjort

  3. Local-scale field mapping of geodiversity: a case study from sub-Arctic Finland 

    Article • March 2026, Copernicus GmbH

    Professor Jan Hjort

  4. Amplified Arctic–boreal fire regimes from permafrost thaw feedbacks

    Article • Nature Geoscience, January 2026, Springer Science + Business Media

    Dr Yang Chen, Professor Jan Hjort

  5. \articletype Original Articles Divergent links between environmental heterogeneity and thermal plasticity across the European ranges of three Hypericum species

    Article • January 2026, Wiley

    Professor Jan Hjort

  6. Negative effects of climate warming on red-listed boreal peatland plant species can be mitigated through restoration

    Article • Biological Conservation, June 2025, Elsevier

    Professor Jan Hjort

  7. Active-layer detachment failures and the vulnerability of infrastructure in Alaska and northwestern Canada

    Article • March 2025, Copernicus GmbH

    Professor Jan Hjort

  8. Flark area monitoring in boreal aapa mires using multi-resolution optical remote sensing

    Article • January 2025, Copernicus GmbH

    Professor Jan Hjort

  9. A macroecological analysis of ecological uniqueness of freshwater macrophyte assemblages across Europe and North America

    Article • Journal of Ecology, October 2024, Wiley

    Professor Jan Hjort

  10. Residential greenness during pregnancy and early life and development of asthma up to 27 years of age: The Espoo Cohort Study

    Article • Environmental Research, July 2024, Elsevier

    Professor Jan Hjort

  11. Too much diversity—Multiple definitions of geodiversity hinder its potential in biodiversity research

    Article • Diversity and Distributions, April 2024, Wiley

    Professor Jan Hjort

  12. A framework for quantifying geodiversity at the local scale: a case study from the Rokua UNESCO Global Geopark

    Article • Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, February 2024, Royal Society Publishing

    Professor Jan Hjort

  13. Geodiversity data for Europe

    Article • Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, February 2024, Royal Society Publishing

    Professor Jan Hjort

  14. Quantitative measurement of geodiversity uniqueness: research implications and conservation applications

    Article • Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, February 2024, Royal Society Publishing

    Professor Jan Hjort

  15. The status and future of essential geodiversity variables

    Article • Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, February 2024, Royal Society Publishing

    Professor Jan Hjort

  16. Towards a taxonomy of geodiversity

    Article • Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, February 2024, Royal Society Publishing

    Professor Jan Hjort

  17. Boundary of ecosystem services: A response to

    Article • Journal of Environmental Management, February 2024, Elsevier

    Professor Jan Hjort

  18. Residential greenness during pregnancy and early life and development of asthma up to 27 years of age: The Espoo Cohort Study

    Article • November 2023, Wiley

    Professor Jan Hjort

  19. Spatial water table level modelling with multi-sensor unmanned aerial vehicle data in boreal aapa mires

    Article • Remote Sensing Applications Society and Environment, November 2023, Elsevier

    Professor Jan Hjort

  20. Environmental spaces for palsas and peat plateaus are disappearing at a circumpolar scale

    Article • The Cryosphere, August 2023, Copernicus GmbH

    Professor Jan Hjort

  21. Understanding trait diversity: the role of geodiversity

    Article • Trends in Ecology & Evolution, August 2023, Elsevier

    Professor Jan Hjort

  22. Active Layer Thickness and Permafrost Area Projections for the 21st Century

    Article • Earth s Future, July 2023, American Geophysical Union (AGU)

    Professor Jan Hjort

  23. Assessing the relation between geodiversity and species richness in mountain heaths and tundra landscapes

    Article • Landscape Ecology, June 2023, Springer Science + Business Media

    Professor Jan Hjort

  24. Geodiversity uniqueness as a new approach to quantifying geofeature patterns

    Article • May 2023, Copernicus GmbH

    Professor Jan Hjort

  25. Permafrost degradation increases risk and large future costs of infrastructure on the Third Pole

    Article • Communications Earth & Environment, October 2022, Springer Science + Business Media

    Professor Jan Hjort

  26. High-resolution predictions of ground ice content for the Northern Hemisphere permafrost region

    Article • September 2022, Copernicus GmbH

    Professor Jan Hjort

  27. Supplementary material to "High-resolution predictions of ground ice content for the Northern Hemisphere permafrost region"

    Article • September 2022, Copernicus GmbH

    Professor Jan Hjort

  28. Environmental spaces for palsas and peat plateaus are disappearing at a circumpolar scale

    Article • July 2022, Copernicus GmbH

    Professor Jan Hjort

  29. Supplementary material to "Environmental spaces for palsas and peat plateaus are disappearing at a circumpolar scale"

    Article • July 2022, Copernicus GmbH

    Professor Jan Hjort

  30. A methodological guide to observe local‐scale geodiversity for biodiversity research and management

    Article • Journal of Applied Ecology, May 2022, Wiley

    Professor Jan Hjort

  31. Geomorphological processes shape plant community traits in the Arctic

    Article • Global Ecology and Biogeography, May 2022, Wiley

    Professor Jan Hjort

  32. New high-resolution estimates of the permafrost thermal state and hydrothermal conditions over the Northern Hemisphere

    Article • Earth System Science Data, February 2022, Copernicus GmbH

    Professor Jan Hjort

  33. Impacts of permafrost degradation on infrastructure

    Article • Nature Reviews Earth & Environment, January 2022, Springer Science + Business Media

    Professor Jan Hjort

  34. Environmental Controls of InSAR‐Based Periglacial Ground Dynamics in a Sub‐Arctic Landscape

    Article • Journal of Geophysical Research Earth Surface, July 2021, American Geophysical Union (AGU)

    Professor Jan Hjort

  35. Maisematason geodiversiteetti Suomessa

    Article • Terra, June 2021, Terra

    Professor Jan Hjort

  36. Environmental Controls of InSAR-based Periglacial Ground Dynamics in a Sub-Arctic Landscape

    Article • March 2021, Wiley

    Professor Jan Hjort

  37. New high-resolution estimates of the permafrost thermal state and hydrothermal conditions over the Northern Hemisphere

    Article • March 2021, Copernicus GmbH

    Professor Jan Hjort

  38. Quantifying geodiversity with alpha, beta and gamma components

    Article • March 2021, Copernicus GmbH

    Professor Jan Hjort

  39. High potential for loss of permafrost landforms in a changing climate

    Article • Environmental Research Letters, October 2020, Institute of Physics Publishing

    Professor Jan Hjort

  40. Deriving a Frozen Area Fraction From Metop ASCAT Backscatter Based on Sentinel-1

    Article • IEEE Transactions on Geoscience and Remote Sensing, September 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jan Hjort

  41. Degrading permafrost threatens Arctic nature and built environment

    Article • March 2020, Copernicus GmbH

    Professor Jan Hjort

  42. Changes in the functional features of macrophyte communities and driving factors across a 70-year period

    Article • Hydrobiologia, January 2020, Springer Science + Business Media

    Professor Jan Hjort

  43. Accessibility analysis in evaluating exposure risk to an ecosystem disservice

    Article • Applied Geography, December 2019, Elsevier

    Professor Jan Hjort

  44. Geodiversity–biodiversity relationship needs more empirical evidence

    Article • Nature Ecology & Evolution, November 2019, Springer Science + Business Media

    Professor Jan Hjort

  45. Does catchment geodiversity foster stream biodiversity?

    Article • Landscape Ecology, September 2019, Springer Science + Business Media

    Professor Jan Hjort

  46. Is catchment geodiversity a useful surrogate of aquatic plant species richness?

    Article • Journal of Biogeography, July 2019, Wiley

    Professor Jan Hjort

  47. Snow to Precipitation Ratio Controls Catchment Storage and Summer Flows in Boreal Headwater Catchments

    Article • Water Resources Research, May 2019, American Geophysical Union (AGU)

    Professor Jan Hjort

  48. Landforms contribute to plant biodiversity at alpha, beta and gamma levels

    Article • Journal of Biogeography, April 2019, Wiley

    Professor Jan Hjort

  49. New insights into the environmental factors controlling the ground thermal regime across the Northern Hemisphere: a comparison between permafrost and non-permafrost areas

    Article • The Cryosphere, February 2019, Copernicus GmbH

    Professor Jan Hjort

  50. Degrading permafrost puts Arctic infrastructure at risk by mid-century

    Article • Nature Communications, December 2018, Springer Science + Business Media

    Professor Jan Hjort

  51. New insights into the environmental drivers of the circumpolar ground thermal regime

    Article • July 2018, Copernicus GmbH

    Professor Jan Hjort

  52. Supplementary material to "New insights into the environmental drivers of the circumpolar ground thermal regime"

    Article • July 2018, Copernicus GmbH

    Professor Jan Hjort

  53. Statistical Forecasting of Current and Future Circum-Arctic Ground Temperatures and Active Layer Thickness

    Article • Geophysical Research Letters, May 2018, American Geophysical Union (AGU)

    Professor Jan Hjort

  54. Predicting occupancy and abundance by niche position, niche breadth and body size in stream organisms

    Article • Oecologia, October 2017, Springer Science + Business Media

    Dr Tadeu Siqueira, Professor Jan Hjort

  55. Urbanity as a determinant of exposure to grass pollen in Helsinki Metropolitan area, Finland

    Article • PLOS One, October 2017, PLOS

    Professor Jan Hjort

  56. Integrating dispersal proxies in ecological and environmental research in the freshwater realm

    Article • Environmental Reviews, September 2017, Canadian Science Publishing

    Professor Jan Hjort

  57. Geography of global change and species richness in the North

    Article • Environmental Reviews, June 2017, Canadian Science Publishing

    Professor Jan Hjort

  58. Species richness and taxonomic distinctness of lake macrophytes along environmental gradients in two continents

    Article • Freshwater Biology, April 2017, Wiley

    Professor Jan Hjort

  59. Spatial relationship between biodiversity and geodiversity across a gradient of land-use intensity in high-latitude landscapes

    Article • Landscape Ecology, March 2017, Springer Science + Business Media

    Professor Jan Hjort

  60. Average niche breadths of species in lake macrophyte communities respond to ecological gradients variably in four regions on two continents

    Article • Oecologia, March 2017, Springer Science + Business Media

    Professor Jan Hjort

  61. Modelling native and alien vascular plant species richness: At which scales is geodiversity most relevant?

    Article • Global Ecology and Biogeography, March 2017, Wiley

    Professor Jan Hjort

  62. Global variation in the beta diversity of lake macrophytes is driven by environmental heterogeneity rather than latitude

    Article • Journal of Biogeography, February 2017, Wiley

    Professor Jan Hjort

  63. Spatio-temporal aspects of the environmental factors affecting water quality in boreal rivers

    Article • Environmental Earth Sciences, December 2016, Springer Science + Business Media

    Professor Jan Hjort

  64. Combining geodiversity with climate and topography to account for threatened species richness

    Article • Conservation Biology, November 2016, Wiley

    Professor Jan Hjort

  65. Permafrost Map for Norway, Sweden and Finland

    Article • Permafrost and Periglacial Processes, November 2016, Wiley

    Ketil Isaksen, Professor Jan Hjort

  66. Extreme urban–rural temperatures in the coastal city of Turku, Finland: Quantification and visualization based on a generalized additive model

    Article • The Science of The Total Environment, November 2016, Elsevier

    Professor Jan Hjort

  67. Hierarchical decomposition of trait patterns of macroinvertebrate communities in subarctic streams

    Article • Freshwater Science, September 2016, University of Chicago Press

    Professor Jan Hjort

  68. Introducing accessibility analysis in mapping cultural ecosystem services

    Article • Ecological Indicators, July 2016, Elsevier

    Professor Jan Hjort

  69. Fine-Scale Exposure to Allergenic Pollen in the Urban Environment: Evaluation of Land Use Regression Approach

    Article • Environmental Health Perspectives, May 2016, Environmental Health Perspectives

    Professor Jan Hjort

  70. Importance of spatial scale in structuring emergent lake vegetation across environmental gradients and scales: GIS-based approach

    Article • Ecological Indicators, January 2016, Elsevier

    Professor Jan Hjort

  71. Inferring the effects of potential dispersal routes on the metacommunity structure of stream insects: as the crow flies, as the fish swims or as the fox runs?

    Article • Journal of Animal Ecology, July 2015, Wiley

    Professor Jan Hjort

  72. A review of selection-based tests of abiotic surrogates for species representation

    Article • Conservation Biology, April 2015, Wiley

    Professor Jan Hjort

  73. Why geodiversity matters in valuing nature's stage

    Article • Conservation Biology, April 2015, Wiley

    Professor Jan Hjort

  74. Geomorphological factors predict water quality in boreal rivers

    Article • Earth Surface Processes, June 2014, Wiley

    Professor Jan Hjort

  75. Which Environmental Factors Determine Recent Cryoturbation and Solifluction Activity in a Subarctic Landscape? A Comparison between Active and Inactive Features

    Article • Permafrost and Periglacial Processes, April 2014, Wiley

    Professor Jan Hjort

  76. Transferability of geomorphological distribution models: Evaluation using solifluction features in subarctic and Arctic regions

    Article • Geomorphology, January 2014, Elsevier

    Professor Jan Hjort

  77. Land use impacts on trace metal concentrations of suburban stream sediments in the Helsinki region, Finland

    Article • The Science of The Total Environment, July 2013, Elsevier

    Professor Jan Hjort

  78. 2.6 Statistical Methods for Geomorphic Distribution Modeling

    Article • January 2013, Elsevier

    Professor Jan Hjort

  79. Effects of scale on modelling the urban heat island in Turku, SW Finland

    Article • Climate Research, November 2012, Inter-Research Science Center

    Professor Jan Hjort

  80. Inclusion of explicit measures of geodiversity improve biodiversity models in a boreal landscape

    Article • Biodiversity and Conservation, October 2012, Springer Science + Business Media

    Professor Jan Hjort

  81. Can geodiversity be predicted from space?

    Article • Geomorphology, June 2012, Elsevier

    Professor Jan Hjort

  82. Spatial prediction of urban–rural temperatures using statistical methods

    Article • Theoretical and Applied Climatology, March 2011, Springer Science + Business Media

    Professor Jan Hjort

  83. Novel theoretical insights into geomorphic process-environment relationships using simulated response curves

    Article • Earth Surface Processes, February 2011, Wiley

    Professor Jan Hjort

  84. Effects of scale and data source in periglacial distribution modelling in a high arctic environment, western Svalbard

    Article • Permafrost and Periglacial Processes, October 2010, Wiley

    Professor Jan Hjort

  85. Recent vegetation changes at the high-latitude tree line ecotone are controlled by geomorphological disturbance, productivity and diversity

    Article • Global Ecology and Biogeography, June 2010, Wiley

    Professor H John B Birks, Professor Jan Hjort

  86. The thermal state of permafrost in the nordic area during the international polar year 2007-2009

    Article • Permafrost and Periglacial Processes, April 2010, Wiley

    Ketil Isaksen, Professor Jan Hjort

  87. Assessing spatial uncertainty in predictive geomorphological mapping: A multi-modelling approach

    Article • Computers & Geosciences, March 2010, Elsevier

    Professor Jan Hjort

  88. Geodiversity of high-latitude landscapes in northern Finland

    Article • Geomorphology, February 2010, Elsevier

    Professor Jan Hjort

  89. Interaction of geomorphic and ecologic features across altitudinal zones in a subarctic landscape

    Article • Geomorphology, November 2009, Elsevier

    Professor Jan Hjort

  90. Statistical consensus methods for improving predictive geomorphology maps

    Article • Computers & Geosciences, March 2009, Elsevier

    Professor Jan Hjort

  91. Effects of sample size on the accuracy of geomorphological models

    Article • Geomorphology, December 2008, Elsevier

    Professor Jan Hjort

  92. Periglacial distribution modelling with a boosting method

    Article • Permafrost and Periglacial Processes, November 2008, Wiley

    Professor Jan Hjort

  93. A comparison of predictive methods in modelling the distribution of periglacial landforms in Finnish Lapland

    Article • Earth Surface Processes, May 2008, Wiley

    Professor Jan Hjort

  94. Can abundance of geomorphological features be predicted using presence–absence data?

    Article • Earth Surface Processes, January 2008, Wiley

    Professor Jan Hjort

  95. Downscaling of coarse-grained geomorphological data

    Article • Earth Surface Processes, January 2007, Wiley

    Professor Jan Hjort

  96. Landscape scale determinants of periglacial features in subarctic Finland: a grid-based modelling approach

    Article • Permafrost and Periglacial Processes, January 2007, Wiley

    Professor Jan Hjort

  97. Scale matters–A multi-resolution study of the determinants of patterned ground activity in subarctic Finland

    Article • Geomorphology, October 2006, Elsevier

    Professor Jan Hjort

  98. Modelling patterned ground distribution in finnish lapland: an integration of topographical, ground and remote sensing information

    Article • Geografiska Annaler Series A Physical Geography, March 2006, Taylor & Francis

    Professor Jan Hjort

  99. Evaluation of current statistical approaches for predictive geomorphological mapping

    Article • Geomorphology, April 2005, Elsevier

    Professor Jan Hjort

  100. Generalized linear modelling in periglacial studies: terrain parameters and patterned ground

    Article • Permafrost and Periglacial Processes, January 2004, Wiley

    Professor Jan Hjort