Works by Hjort, Jan

Results: 60

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

Published in:

Hydrobiologia, 2020, v. 847, n. 18, p. 3811, doi. 10.1007/s10750-019-04165-1

By:

Lindholm, Marja;
Alahuhta, Janne;
Heino, Jani;
Hjort, Jan;
Toivonen, Heikki

Publication type:

Article

Different species trait groups of stream diatoms show divergent responses to spatial and environmental factors in a subarctic drainage basin.

Published in:

Hydrobiologia, 2018, v. 816, n. 1, p. 213, doi. 10.1007/s10750-018-3585-0

By:

Lindholm, Marja;
Grönroos, Mira;
Hjort, Jan;
Karjalainen, Satu Maaria;
Tokola, Laura;
Heino, Jani

Publication type:

Article

The role of landscape, topography, and geodiversity in explaining vascular plant species richness in a fragmented landscape.

Published in:

Boreal Environment Research, 2016, v. 21, n. 1/2, p. 53

By:

Räsänen, Aleksi;
Kuitunen, Markku;
Hjort, Jan;
Vaso, Asta;
Kuitunen, Tuomo;
Lensu, Anssi

Publication type:

Article

Environmental Drivers of Palsa and Peat Plateau Occurrences: A Regional Comparison Across the Northern Hemisphere.

Published in:

Permafrost & Periglacial Processes, 2025, v. 36, n. 1, p. 37, doi. 10.1002/ppp.2253

By:

Leppiniemi, Oona;
Karjalainen, Olli;
Aalto, Juha;
Luoto, Miska;
Hjort, Jan

Publication type:

Article

Permafrost Map for Norway, Sweden and Finland.

Published in:

Permafrost & Periglacial Processes, 2017, v. 28, n. 2, p. 359, doi. 10.1002/ppp.1922

By:

Gisnås, Kjersti;
Etzelmüller, Bernd;
Lussana, Cristian;
Hjort, Jan;
Sannel, A. Britta K.;
Isaksen, Ketil;
Westermann, Sebastian;
Kuhry, Peter;
Christiansen, Hanne H.;
Frampton, Andrew;
Åkerman, Jonas

Publication type:

Article

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

Published in:

Permafrost & Periglacial Processes, 2014, v. 25, n. 2, p. 136, doi. 10.1002/ppp.1808

By:

Hjort, Jan

Publication type:

Article

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

Published in:

Permafrost & Periglacial Processes, 2010, v. 21, n. 4, p. 345, doi. 10.1002/ppp.705

By:

Hjort, Jan;
Etzelmüller, Bernd;
Tolgensbakk, Jon

Publication type:

Article

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

Published in:

Permafrost & Periglacial Processes, 2007, v. 18, n. 2, p. 115, doi. 10.1002/ppp.584

By:

Hjort, Jan;
Luoto, Miska;
Seppälä, Matti

Publication type:

Article

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

Published in:

Permafrost & Periglacial Processes, 2004, v. 15, n. 4, p. 327, doi. 10.1002/ppp.482

By:

Luoto, Miska;
Hjort, Jan

Publication type:

Article

Modelling patterned ground distribution in Finnish Lapland: an integration of topographical, ground and remote sensing information.

Published in:

Geografiska Annaler Series A: Physical Geography, 2006, v. 88, n. 1, p. 19, doi. 10.1111/j.0435-3676.2006.00280.x

By:

Hjort, Jan;
Luoto, Miska

Publication type:

Article

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

Published in:

Earth Surface Processes & Landforms, 2008, v. 33, n. 14, p. 2241, doi. 10.1002/esp.1695

By:

Marmion, Mathieu;
Hjort, Jan;
Thiller, Wilfreied;
Luoto, Miska

Publication type:

Article

Can abundance of geomorphological features be predicted using presence-absence data?

Published in:

Earth Surface Processes & Landforms, 2008, v. 33, n. 5, p. 741, doi. 10.1002/esp.1572

By:

Hjort, Jan;
Luoto, Miska

Publication type:

Article

Downscaling of coarse-grained geomorphological data.

Published in:

Earth Surface Processes & Landforms, 2008, v. 33, n. 1, p. 75, doi. 10.1002/esp.1529

By:

Luoto, Miska;
Hjort, Jan

Publication type:

Article

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

Published in:

PLoS ONE, 2017, v. 12, n. 10, p. 1, doi. 10.1371/journal.pone.0186348

By:

Hugg, Timo T.;
Hjort, Jan;
Antikainen, Harri;
Rusanen, Jarmo;
Tuokila, Mirkka;
Korkonen, Sanna;
Weckström, Jan;
Jaakkola, Maritta S.;
Jaakkola, Jouni J. K.

Publication type:

Article

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

Published in:

Cryosphere Discussions, 2022, p. 1, doi. 10.5194/tc-2022-135

By:

Könönen, Oona H.;
Karjalainen, Olli;
Aalto, Juha;
Luoto, Miska;
Hjort, Jan

Publication type:

Article

Multi-resolution remote sensing for flark area detection in boreal aapa mires.

Published in:

International Journal of Remote Sensing, 2024, v. 45, n. 13, p. 4324, doi. 10.1080/01431161.2024.2359732

By:

Keränen, Kaapro;
Isoaho, Aleksi;
Räsänen, Aleksi;
Hjort, Jan;
Kumpula, Timo;
Korpelainen, Pasi;
Rana, Parvez

Publication type:

Article

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

Published in:

Landscape Ecology, 2023, v. 38, n. 9, p. 2227, doi. 10.1007/s10980-023-01702-1

By:

Salminen, Henriikka;
Tukiainen, Helena;
Alahuhta, Janne;
Hjort, Jan;
Huusko, Karoliina;
Grytnes, John-Arvid;
Pacheco-Riaño, L. Camila;
Kapfer, Jutta;
Virtanen, Risto;
Maliniemi, Tuija

Publication type:

Article

Does catchment geodiversity foster stream biodiversity?

Published in:

Landscape Ecology, 2019, v. 34, n. 10, p. 2469, doi. 10.1007/s10980-019-00901-z

By:

Kärnä, Olli-Matti;
Heino, Jani;
Laamanen, Tiina;
Jyrkänkallio-Mikkola, Jenny;
Pajunen, Virpi;
Soininen, Janne;
Tolonen, Kimmo T.;
Tukiainen, Helena;
Hjort, Jan

Publication type:

Article

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

Published in:

Cryosphere Discussions, 2018, p. 1, doi. 10.5194/tc-2018-144

By:

Karjalainen, Olli;
Miska Luoto;
Aalto, Juha;
Hjort, Jan

Publication type:

Article

Highly variable species distribution models in a subarctic stream metacommunity: Patterns, mechanisms and implications.

Published in:

Freshwater Biology, 2018, v. 63, n. 1, p. 33, doi. 10.1111/fwb.12993

By:

de Mendoza, Guillermo;
Kaivosoja, Riikka;
Grönroos, Mira;
Hjort, Jan;
Ilmonen, Jari;
Kärnä, Olli‐Matti;
Paasivirta, Lauri;
Tokola, Laura;
Heino, Jani

Publication type:

Article

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

Published in:

Freshwater Biology, 2017, v. 62, n. 7, p. 1194, doi. 10.1111/fwb.12936

By:

Alahuhta, Janne;
Toivanen, Maija;
Hjort, Jan;
Ecke, Frauke;
Johnson, Lucinda B.;
Sass, Laura;
Heino, Jani

Publication type:

Article

Maisematason geodiversiteetti Suomessa.

Published in:

Terra, 2021, v. 133, n. 2, p. 55, doi. 10.30677/terra.99435

By:

TUKIAINEN, HELENA;
HJORT, JAN

Publication type:

Article

Tilastollisia perusmenetelmiä yleistajuisesti.

Published in:

Terra, 2009, v. 121, n. 4, p. 323

By:

Hjort, Jan;
Kuusisto-Hjort, Paula

Publication type:

Article

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

Published in:

Environmental Health Perspectives, 2016, v. 124, n. 5, p. 619, doi. 10.1289/ehp.1509761

By:

Hjort, Jan;
Hugg, Timo T.;
Antikainen, Harri;
Rusanen, Jarmo;
Sofiev, Mikhail;
Kukkonen, Jaakko;
Jaakkola, Maritta S.;
Jaakkola, Jouni J. K.

Publication type:

Article

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

Published in:

Global Ecology & Biogeography, 2010, v. 19, n. 6, p. 810, doi. 10.1111/j.1466-8238.2010.00570.x

By:

Virtanen, Risto;
Luoto, Miska;
Räm, Teppo;
Mikkola, Kari;
Hjort, Jan;
Grytnes, John-Arvid;
Birks, H. John B.

Publication type:

Article

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

Published in:

Environmental Earth Sciences, 2017, v. 76, n. 1, p. 1, doi. 10.1007/s12665-016-6338-2

By:

Varanka, Sanna;
Hjort, Jan

Publication type:

Article

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?

Published in:

Journal of Animal Ecology, 2015, v. 84, n. 5, p. 1342, doi. 10.1111/1365-2656.12397

By:

Kärnä, Olli‐Matti;
Grönroos, Mira;
Antikainen, Harri;
Hjort, Jan;
Ilmonen, Jari;
Paasivirta, Lauri;
Heino, Jani;
Johansson, Frank

Publication type:

Article

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

Published in:

Water Resources Research, 2019, v. 55, n. 5, p. 4096, doi. 10.1029/2018WR023031

By:

Meriö, Leo‐Juhani;
Ala‐aho, Pertti;
Kløve, Bjørn;
Marttila, Hannu;
Linjama, Jarmo;
Hjort, Jan

Publication type:

Article

Spatial prediction of urban-rural temperatures using statistical methods.

Published in:

Theoretical & Applied Climatology, 2011, v. 106, n. 1-2, p. 139, doi. 10.1007/s00704-011-0425-9

By:

Hjort, Jan;
Suomi, Juuso;
Käyhkö, Jukka

Publication type:

Article

Retrogressive thaw slump susceptibility in the northern hemisphere permafrost region.

Published in:

Earth Surface Processes & Landforms, 2024, v. 49, n. 11, p. 3319, doi. 10.1002/esp.5890

By:

Makopoulou, Eirini;
Karjalainen, Olli;
Elia, Letizia;
Blais‐Stevens, Andrée;
Lantz, Trevor;
Lipovsky, Panya;
Lombardo, Luigi;
Nicu, Ionut C.;
Rubensdotter, Lena;
Rudy, Ashley C. A.;
Hjort, Jan

Publication type:

Article

Geomorphological factors predict water quality in boreal rivers.

Published in:

Earth Surface Processes & Landforms, 2015, v. 40, n. 15, p. 1989, doi. 10.1002/esp.3601

By:

Varanka, Sanna;
Hjort, Jan;
Luoto, Miska

Publication type:

Article

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

Published in:

Earth Surface Processes & Landforms, 2011, v. 36, n. 3, p. 363, doi. 10.1002/esp.2048

By:

Hjort, Jan;
Luoto, Miska

Publication type:

Article

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

Published in:

Biodiversity & Conservation, 2012, v. 21, n. 13, p. 3487, doi. 10.1007/s10531-012-0376-1

By:

Hjort, Jan;
Heikkinen, Risto;
Luoto, Miska

Publication type:

Article

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

Published in:

Earth's Future, 2023, v. 11, n. 8, p. 1, doi. 10.1029/2023EF003573

By:

Peng, Xiaoqing;
Zhang, Tingjun;
Frauenfeld, Oliver W.;
Mu, Cuicui;
Wang, Kang;
Wu, Xiaodong;
Guo, Donglin;
Luo, Jing;
Hjort, Jan;
Aalto, Juha;
Karjalainen, Olli;
Luoto, Miska

Publication type:

Article

Geomorphological processes shape plant community traits in the Arctic.

Published in:

Global Ecology & Biogeography, 2022, v. 31, n. 7, p. 1381, doi. 10.1111/geb.13512

By:

Kemppinen, Julia;
Niittynen, Pekka;
Happonen, Konsta;
le Roux, Peter C.;
Aalto, Juha;
Hjort, Jan;
Maliniemi, Tuija;
Karjalainen, Olli;
Rautakoski, Helena;
Luoto, Miska;
McGill, Brian

Publication type:

Article

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

Published in:

Global Ecology & Biogeography, 2017, v. 26, n. 7, p. 763, doi. 10.1111/geb.12574

By:

Bailey, Joseph J.;
Boyd, Doreen S.;
Hjort, Jan;
Lavers, Chris P.;
Field, Richard;
Ruggiero, Adriana

Publication type:

Article

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

Published in:

Earth System Science Data, 2022, v. 14, n. 2, p. 865, doi. 10.5194/essd-14-865-2022

By:

Ran, Youhua;
Li, Xin;
Cheng, Guodong;
Che, Jingxin;
Aalto, Juha;
Karjalainen, Olli;
Hjort, Jan;
Luoto, Miska;
Jin, Huijun;
Obu, Jaroslav;
Hori, Masahiro;
Yu, Qihao;
Chang, Xiaoli

Publication type:

Article

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

Published in:

Environmental Reviews, 2017, v. 25, n. 3, p. 334, doi. 10.1139/er-2016-0110

By:

Heino, Jani;
Alahuhta, Janne;
Ala-Hulkko, Terhi;
Antikainen, Harri;
Bini, Luis Mauricio;
Bonada, Núria;
Datry, Thibault;
Erős, Tibor;
Hjort, Jan;
Kotavaara, Ossi;
Melo, Adriano S.;
Soininen, Janne

Publication type:

Article

Geography of global change and species richness in the North.

Published in:

Environmental Reviews, 2017, v. 25, n. 2, p. 184, doi. 10.1139/er-2016-0085

By:

Vilmi, Annika;
Alahuhta, Janne;
Hjort, Jan;
Kärnä, Olli-Matti;
Leinonen, Kirsti;
Rocha, Mariana Perez;
Tolonen, Katri E.;
Tolonen, Kimmo T.;
Heino, Jani

Publication type:

Article

Correlates of different facets and components of beta diversity in stream organisms.

Published in:

Oecologia, 2019, v. 191, n. 4, p. 919, doi. 10.1007/s00442-019-04535-5

By:

Perez Rocha, Mariana;
Bini, Luis M.;
Grönroos, Mira;
Hjort, Jan;
Lindholm, Marja;
Karjalainen, Satu-Maaria;
Tolonen, Katri E.;
Heino, Jani

Publication type:

Article

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

Published in:

Oecologia, 2018, v. 186, n. 1, p. 205, doi. 10.1007/s00442-017-3988-z

By:

Rocha, Mariana P.;
Bini, Luis M.;
Siqueira, Tadeu;
Hjort, Jan;
Grönroos, Mira;
Lindholm, Marja;
Karjalainen, Satu-Maaria;
Heino, Jani

Publication type:

Article

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

Published in:

Oecologia, 2017, v. 184, n. 1, p. 219, doi. 10.1007/s00442-017-3847-y

By:

Alahuhta, Janne;
Virtala, Antti;
Hjort, Jan;
Ecke, Frauke;
Johnson, Lucinda;
Sass, Laura;
Heino, Jani

Publication type:

Article

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

Published in:

Diversity & Distributions, 2024, v. 30, n. 6, p. 1, doi. 10.1111/ddi.13843

By:

Maliniemi, Tuija;
Tukiainen, Helena;
Hjort, Jan;
Toivanen, Maija;
Vernham, Grant;
Bailey, Joseph J.;
Baines, Oliver;
Benniston, Lucy;
Brilha, José;
Field, Richard;
Fox, Nathan;
Gray, Murray;
Grytnes, John‐Arvid;
Huusko, Karoliina;
Kemppinen, Julia;
Pereira, Paulo;
Salminen, Henriikka;
Schrodt, Franziska;
Turner, Laura;
Alahuhta, Janne

Publication type:

Article

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

Published in:

Earth System Science Data Discussions, 2022, p. 1, doi. 10.5194/essd-2022-144

By:

Karjalainen, Olli;
Aalto, Juha;
Kanevskiy, Mikhail Z.;
Luoto, Miska;
Hjort, Jan

Publication type:

Article

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

Published in:

Earth System Science Data Discussions, 2021, p. 1, doi. 10.5194/essd-2021-83

By:

Youhua Ran;
Xin Li;
Guodong Cheng;
Jingxin Che;
Aalto, Juha;
Karjalainen, Olli;
Jan Hjort;
Miska Luoto;
Huijun Jin;
Obu, Jaroslav;
Masahiro Hori;
Qihao Yu;
Xiaoli Chang

Publication type:

Article

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

Published in:

Journal of Applied Ecology, 2022, v. 59, n. 7, p. 1756, doi. 10.1111/1365-2664.14183

By:

Hjort, Jan;
Tukiainen, Helena;
Salminen, Henriikka;
Kemppinen, Julia;
Kiilunen, Petteri;
Snåre, Henna;
Alahuhta, Janne;
Maliniemi, Tuija

Publication type:

Article

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

Published in:

Cryosphere, 2023, v. 17, n. 8, p. 3157, doi. 10.5194/tc-17-3157-2023

By:

Leppiniemi, Oona;
Karjalainen, Olli;
Aalto, Juha;
Luoto, Miska;
Hjort, Jan

Publication type:

Article

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

Published in:

Cryosphere, 2019, v. 13, n. 2, p. 693, doi. 10.5194/tc-13-693-2019

By:

Karjalainen, Olli;
Luoto, Miska;
Aalto, Juha;
Hjort, Jan

Publication type:

Article

Quantifying alpha, beta and gamma geodiversity.

Published in:

Progress in Physical Geography: Earth & Environment, 2023, v. 47, n. 1, p. 140, doi. 10.1177/03091333221114714

By:

Tukiainen, Helena;
Maliniemi, Tuija;
Alahuhta, Janne;
Hjort, Jan;
Lindholm, Marja;
Salminen, Henriikka;
Snåre, Henna;
Toivanen, Maija;
Vilmi, Annika;
Heino, Jani

Publication type:

Article

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

Published in:

Landscape Ecology, 2017, v. 32, n. 5, p. 1049, doi. 10.1007/s10980-017-0508-9

By:

Tukiainen, Helena;
Alahuhta, Janne;
Field, Richard;
Ala-Hulkko, Terhi;
Lampinen, Raino;
Hjort, Jan

Publication type:

Article