Employee photo: Kristian Hassel

Kristian Hassel

Professor II
Faculty of Biosciences and Aquaculture
Study location
Steinkjer
2025
Genetic structure of the Sphagnum magellanicum (Sphagnaceae) complex in Europe 2025 The Bryologist - A. Jonathan Shaw, Marta Nieto-Lugilde, Blanka Aguero, Aaron M. Duffy, Sean Robinson, Kristian Hassel, Kjell Ivar Flatberg, Nele Ingerpuu, Kai Vellak, Aaron Pérez-Haase, Martin Jiroušek, Mathias Krebs, Teemu Juselius-Rajamäki, Sanna Piilo, Bjorn Robroek, Paul Lamkowski, Gustaf Granath
From bare peat to Sphagnum cover: The success of Sphagnum-fragment and straw-mulch application for initiating peatland restoration 2025 Mires and Peat - Marte Fandrem, Kristian Hassel, James David Mervyn Speed, Anders Lorentzen Kolstad, Magni Olsen Kyrkjeeide
Sphagnum talbotianum R.E.Andrus, a new peatmoss species of Norway from Svalbard 2025 Lindbergia - Kjell Ivar Flatberg, Kristian Hassel, Magni Olsen Kyrkjeeide, Tommy Prestø
Molecular species delimitation of Sphagnum subgenus Subsecunda in Europe 2025 Botanical journal of the Linnean Society - Olena Meleshko, Magni Olsen Kyrkjeeide, Hanne Torsdatter Petlund, Kjell Ivar Flatberg, Line Birkeland Eriksen, Sarah Louise Martin, Kristian Hassel
Discrete ecological gradient in thermokarst ponds in a palsa mire in northern Norway 2025 Scientific Reports - Ewa Jabłońska, Anders Lyngstad, Izabela Jaszczuk, Jan Kucharzyk, Kristian Hassel, Mateusz Grygoruk, Wiktor Kotowski
An annotated checklist of bryophytes of the Nordic countries 2025 Lindbergia - Niklas Lönnell, Kristian Hassel, Irina Goldberg, Sanna Huttunen, Ágúst H. Bjarnason, Hans H. Blom, Tomas Hallingbäck, Lars Hedenäs, Torbjørn Høitomt, Kati Pihlaja, Tommy Prestø, Kimmo Syrjänen, Lars Söderström, Tauno Ulvinen, Henrik Weibull
Long-term trends in global flowering phenology 2025 New Phytologist - David Roddan Williamson, Tommy Prestø, Kristine Bakke Westergaard, Beatrice Maria Trascau, Vibekke Vange, Kristian Hassel, Wouter Koch, James David Mervyn Speed
2024
Linked Selection and Gene Density Shape Genome-Wide Patterns of Diversification in Peatmosses 2024 Evolutionary Applications - Olena Meleshko, Michael David Martin, Kjell Ivar Flatberg, Hans Kristen Stenøien, Thorfinn Sand Korneliussen, Péter Szövényi, Kristian Hassel
Parallel patterns of genetic diversity and structure in circumboreal species of the Sphagnum capillifolium complex 2024 American Journal of Botany - Karn Imwattana, Blanka Aguero, Marta Nieto-Lugilde, Aaron Duffy, Juan Jaramillo-Chico, Kristian Hassel, Olga Afonina, Paul Lamkowski, Shaw Jonathan Shaw
2023
Short stories from Sphagnum of rare species, taxonomy, and speciation 2023 Ecology and Evolution - Magni Olsen Kyrkjeeide, Olena Meleshko, Kjell Ivar Flatberg, Kristian Hassel
Tardigrade diversity and community composition across Norwegian boreal forests 2023 Zoological Journal of the Linnean Society - Roberto Guidetti, K. Ingemar Jönsson, Łukasz Kaczmarek, Terje Meier, James David Mervyn Speed, Tommy Prestø, Elisabeth Stur, Lasse Topstad, Michele Cesari, Milena Roszkowska, Krzysztof Zawierucha, Kristian Hassel, Torbjørn Ekrem
TYPIFICATION OF JUNGERMANNIA PINGUIS L. (MARCHANTIOPHYTA, ANEURACEAE) 2023 Edinburgh journal of botany - David Long, Laura L. Forrest, Kristian Hassel, Ana Séneca, Lars Söderström
Studies on Aneura (Aneuraceae): The Aneura maxima complex 2023 Hattoria - Lars Söderström, Laura L. Forrest, Kristian Hassel, David G. Long, Ana Séneca, Yuya Inoue
Restoring heathlands after afforestation on two islands in western Norway 2023 Nordic Journal of Botany (NJB) - Heidi Iren Saure, Ole Reidar Vetaas, Kristian Hassel, Vigdis Vandvik
Sphagnum diabolicum sp. nov. and S. magniae sp. nov.; morphological variation and taxonomy of the "S. magellanicum complex" 2023 The Bryologist - A. Jonathan Shaw, Marta Nieto-Lugilde, Blanka Aguero, Aaron Duffy, Bryan T. Piatkowski, Juan Jaramillo-Chico, Sean Robinson, Kristian Hassel, Kjell Ivar Flatberg, David J. Weston, Scott Schuette, Karen A. Hicks
The Sphagnum cuspidatum complex: phylogeny, species delimitation, and morphology 2023 Biological Journal of the Linnean Society - Sean C. Robinson, Marta Nieto-Lugilde, Aaron M. Duffy, Katherine Martinez Muñoz, Blanka Aguero, Amelia Merced, Kristian Hassel, Kjell Ivar Flatberg, Shaw Jonathan Shaw
2022
Sphagnum magniporosum (Sphagnaceae, subgenus Subsecunda) a new peatmoss species from Venezuela 2022 Lindbergia - Kjell Ivar Flatberg, Kristian Hassel, Tommy Prestø, Magni Olsen Kyrkjeeide, A. Jonathan Shaw, Teuvo Ahti
Encalypta driva (sp. nov.) and its relationship to E. vulgaris in Scandinavia 2022 Lindbergia - Kristian Hassel, Mohsen Falahati-Anbaran, Torbjørn Høitomt
The annual excursion of the Nordic Bryological Society (NBS) and the Finnish Bryophyte Expert Group to Finnish Lapland in 2019. 2022 Lindbergia - Kati Pihlaja, Riikka Juutinen, Tapani Sallantaus, Kimmo Syrjänen, Rudi Zielman, Michael Lüth, Esa Ervasti, Tuomo Kuitunen, Kristian Hassel, Kjell Ivar Flatberg, Richard Åkesson, Eva Mikulášková, Pia Kangas, Antje Neumann
Morphological-molecular incongruence in Sphagnum majus ssp. majus and ssp. norvegicum 2022 The Bryologist - Marta Nieto-Lugilde, Sean Robinson, Blanka Aguero, Aaron Duffy, Karn Imwattana, Kristian Hassel, Kjell Ivar Flatberg, Hans K. Stenøien, Anna V. Shkurko, Vladimir E. Fedosov, A. Jonathan Shaw
A regionally coherent ecological fingerprint of climate change, evidenced from natural history collections 2022 Ecology and Evolution - James David Mervyn Speed, Ann Evankow, Tanja Kofod Petersen, Peter Sjolte Ranke, Nellie Henriette Nilsen, Grace Winifred Turner, Kaare Aagaard, Torkild Bakken, Jan Grimsrud Davidsen, Glenn Dunshea, Anders Gravbrøt Finstad, Kristian Hassel, Magne Husby, Karstein Hårsaker, Jan Ivar Koksvik, Tommy Prestø, Vibekke Vange
Lophozia lantratovae Bakalin new to northern Europe 2022 Lindbergia - Lars Söderström, Kristian Hassel, Tommy Prestø
Phylogenomic structure and speciation in an emerging model: the Sphagnum magellanicum complex (Bryophyta) 2022 New Phytologist - A. Jonathan Shaw, Bryan Piatkowski, Aaron M. Duffy, Blanka Aguero, Karn Imwattana, Marta Nieto-Lugilde, Adam Healey, David J. Weston, Megan N. Patel, Jeremy Schmutz, Jane Grimwood, Joseph B. Yavitt, Kristian Hassel, Hans K. Stenøien, Kjell Ivar Flatberg, Christopher P. Bickford, Karen A. Hicks
Heterogeneous genetic structure in eastern North American peat mosses (Sphagnum) 2022 Biological Journal of the Linnean Society - Aaron M Duffy, Mariana Ricca, Sean Robinson, Blanka Aguero, Matthew G Johnson, Hans K. Stenøien, Kjell Ivar Flatberg, Kristian Hassel, A. Jonathan Shaw
Studies on genus Aneura (Marchantiophyta, Aneuraceae): typification of Riccardia fuscovirens Lindb. 2022 Lindbergia - Lars Söderström, Kristian Hassel, David G. Long, Laura L. Forrest, Ana Séneca
2021
Extensive genome-wide phylogenetic discordance is due to incomplete lineage sorting and not ongoing introgression in a rapidly radiated bryophyte genus 2021 Molecular Biology and Evolution (MBE) - Olena Meleshko, Michael David Martin, Thorfinn Sand Korneliussen, Christian Schröck, Paul Lamkowski, Jeremy Schmutz, Adam Healey, Bryan T Piatkowski, A. Jonathan Shaw, David J Weston, Kjell Ivar Flatberg, Péter Szövényi, Kristian Hassel, Hans K. Stenøien
Gene flow and genome evolution in peatmosses (Sphagnum) 2021 - Olena Meleshko, Kristian Hassel, Hans K. Stenøien, Michael David Martin
Land of retreating glaciers – checklist of liverworts on Svalbard 2021 Arctoa: A Journal of Briology - Lars Söderström, Nadezhda A Konstantinova, Anders Hagborg, Tommy Prestø, Kristian Hassel, Matt von Konrat
The Ecological Integrity of Spring Ecosystems: A Global Review Reference Module in Earth Systems and Environmental Sciences 2021 - Lawrence E. Stevens, Anwar A. Aly, Sarah M. Arpin, Iva Apostolova, Gail M. Ashley, Paulo Quadri Barba, Jose Barqúin, Aude Beauger, Lachen Benaabidate, Sami Ullah Bhat, Lhoussaine Bouchaou, Marco Cantonati, Teresa M. Carroll, Russell Death, Kathleen A. Dwire, Miguel Fernandes Felippe, Roderick J. Fensham, Alan E. Fryar, Roger Pascual i Garsaball, Vojsava Gjoni, Douglas, S. Glazier, Nico Goldscheider, Joseph T. Gurrieri, Ragnhildur Gudmundsdottir, Atzalan Rodriguez Guzman, Michal Hájek, Kristian Hassel, Tamara Heartsill-Scalley, Jaume Solé i Herce, Dirk Hinterlang, Joseph H. Holway, Jari Ilmonen, Jeffrey Jenness, Jutta Kapfer, Ioannis Karaouzas, Robert L. Knight, Agnes-Katharina Kreiling, Christian Herrera Lameli, Jeri D. Ledbetter, Nataly Levine, Melinda D. Lyons, Robert E. Mace, Angeliki Mentzafou, Pierre Marle, NIls Moosdorf, Monica K. Norton, Allan Pentecost, Guillermo Garcia Pérez, Bianca Perla, Kamilla Skaalsveen, Olivier Voldoire
2020
Alien species in Norway: Results from quantitative ecological impact assessments 2020 Ecological Solutions and Evidence - Hanno Sandvik, Olga Hilmo, Snorre Henriksen, Reidar Elven, Per Arvid Åsen, Hanne Hegre, Oddvar Pedersen, Per Anker Pedersen, Heidi Solstad, Vigdis Vandvik, Kristine Bakke Westergaard, Frode Ødegaard, Sandra Charlotte Helene Åström, Hallvard Elven, Anders Endrestøl, Øivind Gammelmo, Bjørn Arild Hatteland, Halvor Solheim, Björn Nordén, Leif Sundheim, Venche Talgø, Tone Falkenhaug, Bjørn Gulliksen, Anders Jelmert, Eivind Oug, Jan Henry Sundet, Elisabet Forsgren, Anders Gravbrøt Finstad, Trygve H. Hesthagen, Kjell Harald Nedreaas, Rupert Wienerroither, Vivian Husa, Stein Fredriksen, Kjersti Sjøtun, Henning Steen, Haakon Hansen, Inger Sofie Hamnes, Egil Karlsbakk, Christer Magnusson, Bjørnar Ytrehus, Hans Christian Pedersen, Jon Swenson, Per Ole Syvertsen, Bård Gunnar Stokke, Jan Ove Gjershaug, Dag Dolmen, Gaute Kjærstad, Stein Ivar Johnsen, Thomas Correll Jensen, Kristian Hassel, Lisbeth Gederaas
Phylogenetic structure in the Sphagnum recurvum complex (Bryophyta: Sphagnaceae) relative to taxonomy and geography 2020 American Journal of Botany - A Duffy, Blanka Aguero, Hans K. Stenøien, Kjell Ivar Flatberg, MS Ignatov, Kristian Hassel, AJ Shaw
The annual excursion of the Nordic Bryological Society (NBS) and the Finnish Bryophyte Expert Group to Finnish Lapland in 2019 2020 Lindbergia - Kati Pihlaja, Riikka Juutinen, Tapani Sallantaus, Kimmo Syrjänen, Rudi Zielman, Michael Lüth, Esa Ervasti, Tuomo Kuitunen, Kristian Hassel, Kjell Ivar Flatberg, Richard Åkesson, Eva Mikulášková, Pia Kangas, Antje Neumann
Phylogenetic structure in the Sphagnum recurvum complex (Bryophyta) in relation to taxonomy and geography 2020 American Journal of Botany - Aaron M. Duffy, Blanka Aguero, Hans K. Stenøien, Kjell Ivar Flatberg, Michael S. Ignatov, Kristian Hassel, A. Jonathan Shaw
New national and regional bryophyte records, 64 2020 Journal of Bryology - L. T. Ellis, M. Kh. Alikhadzhiev, R. S. Erzhapova, Hans H. Blom, H. Bednarek-Ochyra, M. Burghart, M. J. Cano, I.V. Czernyadjeva, E. Yu. Kuzmina, A. D. Potemkin, G. Ya. Doroshina, D. Dagnino, C. Turcato, L. Minuto, P. Drapela, M. V. Dulin, E. Fuertes, A. Graulich, Kristian Hassel, Lars Hedenäs, Tom Hellik Hofton, Torbjørn Høitomt, I. Jukonienė, M. Kırmacı, N. E. Koroleva, Ł. Krajewski, M. Kropik, H. Kürschner, E. V. Kushnevskaya, J. Larraín, M. Lebouvier, A. I. Maksimov, O. Yu. Pisarenko, V. Plášek, Z. Skoupá, S. Yu. Popov, V. E. Fedosov, M. Puglisi, A Stebel, S. Ştefănut, G. Vončina, M. Wierzgoń, S.-L. Guo
2019
Can mowing restore boreal rich-fen vegetation in the face of climate change? 2019 PLOS ONE - Louise C. Ross, James David Mervyn Speed, Dag-Inge Øien, Mateusz Grygoruk, Kristian Hassel, Anders Lyngstad, Asbjørn Moen
Alien plants, animals, fungi and algae in Norway: an inventory of neobiota 2019 Biological Invasions - Hanno Sandvik, Dag Dolmen, Reidar Elven, Tone Falkenhaug, Elisabet Forsgren, Haakon Hansen, Kristian Hassel, Vivian Husa, Gaute Kjærstad, Frode Ødegaard, Hans Christian Pedersen, Halvor Solheim, Bård Gunnar Stokke, Per Arvid Åsen, Sandra Åström, Tor Erik Brandrud, Hallvard Elven, Anders Endrestøl, Anders Gravbrøt Finstad, Stein Fredriksen, Øivind Gammelmo, Jan Ove Gjershaug, Bjørn Gulliksen, Inger Hamnes, Bjørn Arild Hatteland, Hanne Hegre, Trygve Hesthagen, Anders Jelmert, Thomas C Jensen, Stein Ivar Johnsen, Egil Karlsbakk, Christer Magnusson, Kjell Nedreaas, Björn Nordén, Eivind Oug, Oddvar Pedersen, Per Anker Pedersen, Kjersti Sjøtun, Jon Kristian Skei, Heidi Solstad, Leif Sundheim, Jon E Swenson, Per Ole Syvertsen, Venche Talgø, Vigdis Vandvik, Kristine B Westergaard, Rupert Wienerroither, Bjørnar Ytrehus, Olga Hilmo, Snorre Henriksen, Lisbeth Gederaas
A miniature world in decline: European Red List of Mosses, Liverworts and Hornworts 2019 - Nick Hodgetts, Marta Cálix, Eve Englefield, Nicholas Fettes, M. García Criado, Lea Patin, Ana Nieto, Ariel Bergamini, Irene Bisang, Elvira Baisheva, Patrizio Campisi, A Cogoni, Tomas Hallingbäck, Nadya A. Konstantinova, Neil Lochhart, Marko Sabovljevic, Norbert Schnyder, Christian Schröck, Cecília Sérgio, Manuela Sim-Sim, Jaroslav Vrba, Catarina C. Ferreira, Olga M. Afonina, T.L. Blockeel, Hans H. Blom, Steffen Caspari, Rosalina Gabriel, Cesar Garcia, Ricardo Garilleti, J González Mancebo, Irina Goldberg, Lars Hedenäs, David T. Holyoak, Vincent Hugonnot, Sanna Huttunen, Mikhail S. Ignatov, Elena A. Ignatova, Marta Infante, Riikka Juutinen, Thomas Kiebacher, Heribert Köckinger, Jan Kucera, Niklas Lönnell, Michael Lüth, Anabela Martins, Oleg Maslovsky, Beata Papp, Ron Porley, Gordon Rothero, Lars Söderström, Sorin Ştefǎnuţ, Kimmo Syrjänen, Alain Untereiner, Jíri Vána, Alain Vanderpoorten, Kai Vellak, Michele Aleffi, J. W. Bates, Neil Bell, Montserrat Brugués, Nils Cronberg, Jo Denyer, J.G. Duckett, Heinjo During, Johannes Enroth, Vladimir E. Fedosov, Kjell Ivar Flatberg, Anna Ganeva, Piotr Gorski, Urban Gunnarsson, Kristian Hassel, Helena Hespanhol, Mark O. Hill, Rory Hodd, Kristoffer Hylander, Nele Ingerpuu, Sanna Laaka-Lindberg, Francisco Lara, Vicente Mazimpaka, Anna Mežaka, Frank Müller, Jose David Orgaz, Jairo Patiño, Sharon Pilkington, Felisa Puche, Rosa Maria Ros, Fred Rumsey, José Gabriel Segarra-Moragues, Ana Séneca, Adam Stebel, Risto Virtanen, Henrik Weibull, Jo Wilbraham, Jan Zarnowiec
Sphagnum Xlydiae, the first allotriploid peatmoss in the northern hemisphere 2019 The Bryologist - Magni Olsen Kyrkjeeide, Kristian Hassel, Blanka Aguero, Eva M. Temsch, Olga M. Afonina, A. Jonathan Shaw, Hans K. Stenøien, Kjell Ivar Flatberg
2018
Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data 2018 PLOS ONE - James David Mervyn Speed, Mika Bendiksby, Anders Gravbrøt Finstad, Kristian Hassel, Anders Lorentzen Kolstad, Tommy Prestø
Sphagnum incundum a new species in Sphagnum subg. Acutifolia (Sphagnaceae) from boreal and arctic regions of North America 2018 Phytotaxa - Magni Olsen Kyrkjeeide, Kristian Hassel, Blanca Shaw, Jonathan Shaw, Eva M. Temsch, Kjell Ivar Flatberg
Is interspecific gene flow and speciation in peatmosses (Sphagnum) constrained by phylogenetic relationship and life-history traits? 2018 Lindbergia - Olena Meleshko, Hans K. Stenøien, James David Mervyn Speed, Kjell Ivar Flatberg, Magni Olsen Kyrkjeeide, Kristian Hassel
Sphagnum divinum (sp. nov.) and S. medium Limpr. and their relationship to S. magellanicum Brid. 2018 Journal of Bryology - Kristian Hassel, Magni Olsen Kyrkjeeide, Narjes Yousefi, Tommy Prestø, Hans K. Stenøien, Jonathan A. Shaw, Kjell Ivar Flatberg
2017
New national and regional bryophyte records, 52. 2017 Journal of Bryology - LT Ellis, M Alatas, M Aleffi, A. Alegro, V. Segota, S. Ozimec, N. Vukovic, N. Koletic, D. Prlic, M. Bontek, AK Asthana, D. Gupta, V Sahu, K.K. Rawat, VA Bakalin, K.G. Klimova, K. Baráth, L.N. Beldiman, J Csiky, J Deme, MJ Cano, J. Guerra, I.V. Czernyadjeva, M.V. Dulin, P Erzberger, T. Ezer, V.E. Fedosov, S. Fontinha, M Sim-Sim, C.A. Garcia, A. Martins, I. Granzow-de la Cerda, L. Sáez, Kristian Hassel
Future directions and priorities for Arctic bryophyte research. 2017 Arctic Science - Lily R. Lewis, Stefanie M. Ickert-Bond, Elisabeth M. Biersma, Peter Convey, Bernard Goffinet, Kristian Hassel, Hans J.D. Kruijer, Catherine La Farge, Jordan Metzgar, Michael Stech, Juan Carlos Villarreal, Stuart F. McDaniel
Impact of climate change on alpine vegetation of mountain summits in Norway 2017 Ecological Research - Thomas Vanneste, Ottar Michelsen, Bente Jessen Graae, Magni Olsen Kyrkjeeide, Håkon Holien, Kristian Hassel, Sigrid Lindmo, Rozália Erzsebet Kapás, Pieter De Frenne
Divergent evolution and niche differentiation within the common peatmoss Sphagnum magellanicum 2017 American Journal of Botany - Narjes Yousefi, Kristian Hassel, Kjell Ivar Flatberg, Petri Kemppainen, Emiliano Trucchi, A. Jonathan Shaw, Magni Olsen Kyrkjeeide, Péter Szövényi, Hans K. Stenøien
2016
Long-distance dispersal and barriers shape genetic structure of peatmosses (Sphagnum) across the Northern Hemisphere 2016 Journal of Biogeography - Magni Olsen Kyrkjeeide, Kristian Hassel, Kjell Ivar Flatberg, A. Jonathan Shaw, Christian Brochmann, Hans K. Stenøien
Spatial Genetic Structure of the Abundant and Widespread Peatmoss Sphagnum magellanicum Brid. 2016 PLOS ONE - Magni Olsen Kyrkjeeide, Kristian Hassel, Kjell Ivar Flatberg, A. Jonathan Shaw, Narjes Yousefi, Hans K. Stenøien
2015
The dark morph of Sphagnum fuscum (Schimp.) H. Klinggr. In Europe is conspecific with the North American S. beothuk 2015 Journal of Bryology - Magni Olsen Kyrkjeeide, Kristian Hassel, Hans K. Stenøien, Tommy Prestø, Erik Boström, Jonathan Shaw, Kjell Ivar Flatberg
Highly overlapping winter diet in two sympatric lemming species revealed by DNA metabarcoding 2015 PLOS ONE - Eeva M Soininen, Gilles Gauthier, Frederic Bilodeau, Dominique Berteaux, Ludovic Gielly, Pierre Taberlet, Galina Gusarova, Eva Bellemain, Kristian Hassel, Hans K. Stenøien, Laura Epp, Audun Schrøder-Nielsen, Christian Brochmann, Nigel Gilles Yoccoz
Lake sediment multi-taxon DNA from North Greenland records early post-glacial appearance of vascular plants and accurately tracks environmental changes 2015 Quaternary Science Reviews - Laura Epp, Galina Gussarova, Sanne Boessenkool, J. Olsen, J Haile, Audun Schrøder-Nielsen, A. Ludikova, Kristian Hassel, Hans K. Stenøien, S. Funder, Eske Willerslev, K. Kjær, Christian Brochmann
Grimsdalen - et skattet landskap for villreinfangst og seterbruk Fjellets kulturlandskap. Arealbruk og landskap gjennom flere tusen år 2015 - Kathrine Stene, Anne Sætren, Lillian Gustafson, Helge Irgens Høeg, Kristian Hassel, Magne Samdal
Budalen landskapsvernområde - seterdal med flere historiske lag Fjellets kulturlandskap. Arealbruk og landskap gjennom flere tusen år 2015 - Aud Mikkelsen Tretvik, Egil Ingvar Aune, Marc Daverdin, Kristian Hassel, Thyra Lise Solem, Lars Fredrik Stenvik, Dag-Inge Øien, Gunnar Austrheim
Genetic variation and structure in peatmosses (Sphagnum) 2015 - Magni Olsen Kyrkjeeide, Hans K. Stenøien, Kristian Hassel
2014
High morphological diversity in remote island populations of the peat moss Sphagnum palustre: glacial refugium, adaptive radiation or just plasticity? 2014 The Bryologist - Hans K. Stenøien, Kristian Hassel, Rossana Segreto, Rosalina Gabriel, EF Karlin, A. J Shaw, Kjell Ivar Flatberg
Glacial refugia and post-glacial colonization patterns in European bryophytes 2014 Lindbergia - Magni Olsen Kyrkjeeide, Hans K. Stenøien, Kjell Ivar Flatberg, Kristian Hassel
Colura calyptrifolia a new oceanic liverwort to Norway and Scandinavia 2014 Lindbergia - Kristian Hassel, Leif Appelgren, Hans H. Blom, Kirstin M. Flynn, Geir Gaarder, Einar Heegaard, Torbjørn Høitomt, John Bjarne Jordal, Maria Lima, Lars Söderström, Kristin Wangen
2013
Palaeoenvironment in northern Norway between 22.2 and 14.5 cal. ka BP 2013 Boreas - Tore Ola Vorren, Karl-Dag Vorren, Odd Aasheim, K.I.Torbjørn Dahlgren, Matthias Forwick, Kristian Hassel
Shedding new light on the diet of Norwegian lemmings: DNA metabarcoding of stomach content 2013 Polar Biology - Eeva Marjatta Soininen, Lucie Zinger, Ludovic Gielly, Eva Bellemain, Kari Anne Bråthen, Christian Brochmann, Laura Epp, Galina Gusarova, Kristian Hassel, John-André Henden, Siw Turid Killengreen, Teppo Rämä, Hans Stenøien, Nigel Yoccoz, Rolf Anker Ims
2012
High genetic diversity in a remote island population system: sans sex 2012 New Phytologist - EF Karlin, SC Hotchkiss, SB Boles, Hans K. Stenøien, Kristian Hassel, Kjell Ivar Flatberg, A. J. Shaw
Pyramidula tetragona (Brid.) Brid. rediscovered in Fennoscandia and new to Norway 2012 Lindbergia - Torbjørn Høitomt, Leif Appelgren, Niklas Lönnell, Kåre Lye, Kristian Hassel
Circumarctic dispersal and long-distance colonization of South America: the moss genus Cinclidium 2012 Journal of Biogeography - Rosalia Pineiro, Magnus Popp, Kristian Hassel, Daniela Listl, Kristine Bakke Westergaard, Kjell Ivar Flatberg, Hans K. Stenøien, Christian Brochmann
New environmental metabarcodes for analysing soil DNA: potential for studying past and present ecosystems 2012 Molecular Ecology - Laura Epp, Sanne Boessenkool, Eva Bellemain, James Haile, Alfonso Esposito, Tiayyba Riaz, Christer Erséus, Vladimir Gusarov, Mary E. Edwards, Arild Johnsen, Hans K. Stenøien, Kristian Hassel, Håvard Kauserud, Nigel Yoccoz, Kari Anne Bråthen, Eske Willerslev, Pierre Taberlet, Eric Coissac, Christian Brochmann
Long-term land-use and landscape dynamics in Budalen, central Norway 2012 International Journal of Biodiversity Science, Ecosystem Services & Management - Thyra Lise Solem, Egil Ingvar Aune, Marc Daverdin, Kristian Hassel, Per Johan E Sjøgren, Lars Stenvik, Aud Mikkelsen Tretvik, Dag-Inge Øien, Gunnar Austrheim
2008
Large scale experimental effects of three levels of sheep densities on an alpine ecosystem 2008 Oikos - Gunnar Austrheim, A Mysterud, Bård Pedersen, R Halvorsen, Kristian Hassel, M Evju
2007
Interactions between sheep, rodents, graminoids, and bryophytes in an oceanic alpine ecosystem of low productivity 2007 Écoscience - Gunnar Austrheim, Atle Mysterud, Kristian Hassel, Marianne Evju, Rune Halvorsen Økland, Rune Halvorsen Økland
2005
Økologiske effekter av sauebeiting i Setesdal-Vesthei Økologiske effekter av sauebeiting i høyfjellet: korttidseffekter 2005 - Gunnar Austrheim, Atle Mysterud, Kristian Hassel, Marianne Evju, Rune Halvorsen Økland
Effekter av sauebeite på planter i Hol, Buskerud Økologiske effekter av sauebeiting i høyfjellet: korttidseffekter 2005 - Gunnar Austrheim, Marianne Evju, Kristian Hassel, Synøve Lindgren, Atle Mysterud
2002
Moser Miljøregistrering i skog - biologisk mangfold. Hovedrapport 2002 - Hans H. Blom, Kristian Hassel, Tommy Prestø
2025
Hva er en art? 2025 Omvisning med foredrag i naturhistoriske samlinger - Torbjørn Ekrem, Kristian Hassel, Tommy Prestø, Frode Ødegaard, Lise Mariann Bolstad Alsli, Marit Glimstad, Martha Borgen
2024
Krypmose 2024 - Kristian Hassel
Du bør heie på Trondheims plan om å bevare myra 2024 - Anders Lyngstad, Kristian Hassel, Kaja Stamer Ekerholt
Årets moseslekt 2024 - vrimoser Tortella 2024 Blyttia : Norsk botanisk forenings tidsskrift - John Gunnar Brynjulvsrud, Kristian Hassel, Torbjørn Høitomt
Species delimitation of Sphagnum subgenus Subsecunda in Europe 2024 VIII international meeting on Sphagnum biology - Magni Olsen Kyrkjeeide, Olena Meleshko, Hanne Torsdatter Petlund, Kjell Ivar Flatberg, Kristian Hassel, Line Birkeland Eriksen, Sarah Louise Martin
Overvåking av effekter av tiltak for åtte trua arter og en naturtype i 2024 2024 - Ruben Erik Roos, Marianne Evju, Anders Endrestøl, Megan Sara Nowell, Oddvar Hanssen, Björn Nordén, Mathias Andreasen, Magni Olsen Kyrkjeeide, Fia Bengtsson, Kristian Hassel
Terrors from Land and Sea - A journey into Nature’s Nightmares 2024 Omvisning med foredrag i naturhistoriske samlinger - Torbjørn Ekrem, Tommy Prestø, Kristian Hassel, Emily Anne Hartop, Torkild Bakken, Maria Buhaug Grankvist
Hva er en art? 2024 Omvisning med foredrag i naturhistoriske samlinger - Torbjørn Ekrem, Kristine Bakke Westergaard, Kristian Hassel, Frode Ødegaard, Jan Grimsrud Davidsen, Mikkel Emil Lange Friis
Grøss og gru fra hav og land - En reise i naturens mareritt 2024 Omvisning med foredrag i naturhistoriske samlinger - Torbjørn Ekrem, Tommy Prestø, Kristian Hassel, Emily Anne Hartop, Torkild Bakken, Maria Buhaug Grankvist
Hva er en art? 2024 Omvisning med foredrag i naturhistoriske samlinger - Torbjørn Ekrem, Kristine Bakke Westergaard, Kristian Hassel, Frode Ødegaard, Jan Grimsrud Davidsen, Mikkel Emil Lange Friis
Vrangmose 2024 - Kristian Hassel
2023
Norway 2023 - Jutta Kapfer, Kamilla Skaalsveen, Kristian Hassel
2022
Myrane på Austneset i Sørværet naturreservat, Askvoll 2022 - Anders Lyngstad, Kristian Hassel, Dag-Inge Øien
Diversity of tardigrade communities in Norwegian forests 2022 15th International Symposium on Tardigrada - Roberto Guidetti, Łukasz Kaczmarek, Milena Roszkowska, Terje Meier, Tommy Prestø, K. Ingemar Jönsson, James David Mervyn Speed, Elisabeth Stur, Ivar Gjerde, Lasse Topstad, Kristian Hassel, Torbjørn Ekrem
Klostertustmose på Reinsklostret, Indre Fosen 2022 - Tommy Prestø, Kristian Hassel
2021
Spatial genetic structure in Northern European Sphagnum squarrosum Crome in relation to its Arctic morph 2021 - Kristian Hassel, Hans K. Stenøien, Olena Meleshko, Kjell Ivar Flatberg, Magni Olsen Kyrkjeeide, Nellie Henriette Nilsen
Overvåking av effekter av tiltak for prioriterte arter og utvalgte naturtyper. Bakgrunnsdokumenter 2021 - Marianne Evju, Tor Erik Brandrud, Harald Bratli, Anders Endrestøl, Oddvar Hanssen, Kristian Hassel, Anders Lyngstad, Marit Mjelde, Siri Lie Olsen, Odd Egil Stabbetorp, Bård Gunnar Stokke, Ellen Svalheim, Anne Sverdrup-Thygeson, Pål Thorvaldsen, Liv Guri Velle, Dag-Inge Øien, Bård Pedersen, Markus A. K. Sydenham, Erik Framstad, Linn Vassvik
2020
Populasjonsstruktur, vekst og økologi hos den prioriterte arten trøndertorvmose Sphagnum troendelagicum 2020 - Kristian Hassel, Magni Olsen Kyrkjeeide, Markus Fjellstad Israelsen, Olena Meleshko, Hans K. Stenøien, Kjell Ivar Flatberg
2019
Is interspecific gene flow in peatmosses (Sphagnum) constrained by phylogenetic relatedness and life-history traits? 2019 ForBio Annual Meeting 2018 - Olena Meleshko, Hans K. Stenøien, James David Mervyn Speed, Kjell Ivar Flatberg, Magni Olsen Kyrkjeeide, Kristian Hassel
Speciation with gene flow in peatmosses - using whole genome sequencing to explore gene flow within and among species 2019 The Bryological Times - Olena Meleshko, Michael David Martin, Péter Szövényi, Hans K. Stenøien, Kristian Hassel
Naturindeks for Norge: Evaluering av indikatorer innen åpent lavland 2019 - Line Johansen, Thomas Carlsen, Kristian Hassel, Eveliina Kallioniemi, Arnstein Staverløkk, Bård Pedersen, Sølvi Wehn
Tiltak for å ta vare på truet natur. Kunnskapsgrunnlag for 90 truete arter og 33 truete naturtyper 2019 - Inger Marie Aalberg Haugen, Magni Olsen Kyrkjeeide, Jarle W. Bjerke, Tor Erik Brandrud, Hanne Hegre, Mari Jokerud, Vibekke Vange, Kristine Bakke Westergaard, Dag-Inge Øien, Heidi Elin Myklebost, Oddvar Hanssen, Kristian Hassel, Johanna Järnegren, Anders Endrestøl, Anders Lyngstad, Jenni Nordén, Børre Kind Dervo, Marianne Evju, Marit Mjelde, Björn Nordén, Hartvig C Christie, Jan Ove Gjershaug, Bård Pedersen, Gunnar Austrheim, Jenny Mattisson, Frode Ødegaard, Øyvind Nystad Handberg, Kristin Magnussen, Siri Voll Dombu, Monica Montalvan Ruano, Marc Daverdin, Craig Ryan Jackson, Frank Ole Hanssen, Bjørnar Dervo, Frode Thomassen Singsaas
Den fantastiske skogen 2019 - Øylov Emma Cyvin, Torbjørn Ekrem, Gunnar Austrheim, Ellen J. Grav Ellingsen, Roger Skjelbakken, Per Gätzschmann, Elin Sandbakk, Solbjørg Pedersen, Alberto Rosselli, Leena Aulikki Airola, Frode Ødegaard, Håkon Holien, Kristian Hassel, Tommy Prestø, Kristin Tiller
2018
Abels tårn, Måsadotten 2018 - Kristian Hassel
Tardigrades in Norwegian forests 2018 14th International Symposium on Tardigrada - Torbjørn Ekrem, Roberto Guidetti, K. Ingemar Jönsson, Łukasz Kaczmarek, Terje Meier, Elisabeth Stur, Tommy Prestø, Kristian Hassel, Karstein Hårsaker, Lasse Topstad, Ivar Gjerde
Correction to: Impact of climate change on alpine vegetation of mountain summits in Norway 2018 Ecological Research - Thomas Vanneste, Ottar Michelsen, Bente Jessen Graae, Magni Olsen Kyrkjeeide, Håkon Holien, Kristian Hassel, Sigrid Lindmo, Rozália Erzsebet Kapás, Pieter de Frenne
Nå kan du gi navn til en ny art 2018 - Kristian Hassel, Hans K. Stenøien, Steinar Brandslet
Nå kan du gi navn til en ny art 2018 - Kristian Hassel, Steinar Brandslet, Hans K. Stenøien
Lur torvmose fikk nytt navn 2018 - Kristian Hassel, Steinar Brandslet
2017
Forprosjekt for restaurering av Høstadmyra, Trondheim kommune 2017 - Anders Lyngstad, Marte Fandrem, Kristian Hassel, Dag-Inge Øien
Divergent evolution and niche differentiation within the common peat moss Sphagnum magellanicum 2017 16th ESEB Congress of the European Society for Evolutionary Biology - Hans K. Stenøien, Narjes Yousefi, Kristian Hassel, Kjell Ivar Flatberg, Petri Kemppainen, Emiliano Trucchi, AJ Shaw, Magni Olsen Kyrkjeeide, Péter Szövényi
Barcoding Norwegian water bears (Tardigrada) 2017 Genome - Aina Mærk Aspaas, Roberto Guidetti, K. Ingemar Jönsson, Łukasz Kaczmarek, Terje Meier, Elisabeth Stur, Tommy Prestø, Kristian Hassel, Erik Boström, Karstein Hårsaker, Torbjørn Ekrem
Barcoding Norwegian water bears (Tardigrada) 2017 7th International Barcode of Life Conference - Aina Mærk Aspaas, Roberto Guidetti, K. Ingemar Jönsson, Łukasz Kaczmarek, Terje Meier, Elisabeth Stur, Tommy Prestø, Kristian Hassel, Erik Boström, Karstein Hårsaker, Torbjørn Ekrem
2016
Nature Index data sources 2016 - Signe Nybø, Hege Gundersen, Kristian Hassel, Knut Anders Hovstad, Line Johansen, Ken Olaf Storaunet, Gro Ingleid van der Meeren
Patterns and determinants of long-term change in boreal fen vegetation 2016 Best practice in restoration - The 10th European conferance on ecological restoration - Louise C. Ross, James David Mervyn Speed, Dag Inge Øien, Kristian Hassel, Anders Lyngstad, Mateusz Grygoruk, Klara Goldstein, Asbjørn Moen
Forvaltningsmål for Stallvikmyran naturreservat, Røyrvik kommune, Nord-Trøndelag 2016 - Jan Eivind Østnes, Rolf Terje Kroglund, Kristian Hassel, Håkon Holien
2015
Datakilder for naturindeks 2015 - Signe Nybø, Hege Gundersen, Kristian Hassel, Knut Hovstad, Line Johansen, Ken Olaf Storaunet, Gro Ingleid van der Meeren
Biogeography of northern peatmosses 2015 Botany 2015 - A. J. Shaw, Magni Olsen Kyrkjeeide, Hans K. Stenøien, Kjell Ivar Flatberg, Kristian Hassel
Moser Anthocerophyta, Marchantiophyta, Bryophyta. 2015 - Kristian Hassel, Rune Halvorsen, Hans H. Blom, Torbjørn Høitomt
Metoder for å beregne endring i klimagassutslipp ved restaurering av myr 2015 - Hans Joosten, Alexandra Barthelmes, John Couwenberg, Kristian Hassel, Asbjørn Moen, Cosima Tegetmeyer, Anders Lyngstad
DNA barcoding of bryophytes and lichens, including biosystematic studies of selected groups 2015 Biodiversity and DNA barcoding - Alica Košuthová, Z. Fačkovcová, Kjell Ivar Flatberg, Anna Guttová, Michael Hájek, Kristian Hassel, Håkon Holien, Eva Mikulášková, T Peterka, Z Plesková, Jana Steinová, Einar Timdal, Mats Wedin, Martin Westberg, Narjes Yousefi, Mika Bendiksby
Kartlegging av vegetasjon og torvmengder i Sætremyrane naturreservat. Forslag til overvåking og restaurering. 2015 - Anders Lyngstad, Robert Barneveld, Arne Grønlund, Kristian Hassel, Simon Weldon
2014
Biodiversitet i plantefelt med gran (Picea abies) og i plantefelt med sitkagran (P. sitchensis). En sammenlignende studie 2014 - Olga Hilmo, Kristian Hassel, Håkon Holien, Marianne Evju, Malene Østreng Nygård
Surprisingly simple evolutionary histories of arctic peat mosses (Sphagnum) 2014 Evolution 2014 Conference - Hans K. Stenøien, A. J Shaw, B Shaw, Kristian Hassel, Kjell Ivar Flatberg
Norge er en mosestormakt 2014 - Kristian Hassel, Steinar Brandslet
Mosemysteriet 2014 - Elin Hansson, Kristian Hassel, Torbjørn Høitomt
Some like it cold: bryophyte responses to a warmer and wetter climate 2014 The 57th Annual Symposium of the IAVS - Pascale Michel, Kristian Hassel, Heinjo During, Kari Klanderud, Vigdis Vandvik
Mystisk mose trigger forskerne 2014 - Oddbjørn Harnes, Kristian Hassel, Kristin Wangen
Botanisk kartlegging i Markhus naturreservat 2014 - Kristian Hassel, Håkon Holien
Norge er stormakt på mose 2014 - Kristian Hassel, Steinar Brandslet
Norge er en mosestormakt 2014 - Kristian Hassel, Steinar Brandslet
Norge en Mosestormakt 2014 - Atle Antonsen, Johan Golden, Kristian Hassel
Bryophytes of the Longyearbyen area 2014 - Tommy Prestø, Michael Lüth, Kristian Hassel
2012
Bryophyte diversity in high and low arctic Greenland 2012 - Kristian Hassel, Tommy Prestø, Niels M. Schmidt
Phylogeography of Sphagnum 2012 Plant seminar, Department of Biology, NTNU - Magni Olsen Kyrkjeeide, Kristian Hassel, Hans K. Stenøien
Phylogeography of disjuntly distributed peat mosses (Sphagnum) 2012 ForBio Annual meeting 2012 - Magni Olsen Kyrkjeeide, Kristian Hassel, Kjell Ivar Flatberg, Jonathan Shaw, Hans K. Stenøien
Phylogeography of disjunctly distributed peat mosses (Sphagnum) 2012 Sphagnum 2012 - Magni Olsen Kyrkjeeide, Kristian Hassel, Kjell Ivar Flatberg, Jonathan Shaw, Hans Stenøien
2011
Småkraftverk og sjeldne moser og lav. Kunnskap og kunnskapsmangler 2011 - Marianne Evju, Kristian Hassel, Dagmar Hagen, Lars Erikstad
Long term land-use and landscape dynamics in Budalen 2011 DYLAN konferanse - Thyra Lise Solem, Egil Ingvar Aune, Gunnar Austrheim, Marc Daverdin, Kristian Hassel, Lars Fredrik Stenvik, Aud Mikkelsen Tretvik, Dag-Inge Øien
Skogsdrift og biologisk mangfold 2011 Trønder-avisa - Håkon Holien, Kristian Hassel
Plant diversity in subalpine birch grasslands investigated by stratified sampling 2011 The People and Nature in Mountains - Dag-Inge Øien, Kristian Hassel, Magni Olsen Kyrkjeeide, Egil Ingvar Aune, Gunnar Austrheim
Natur- og kulturminner i Budalen landskapsvernområde. Arkeologiske, historiske, vegetasjonshistoriske og økologiske undersøkelser i DYLAN-prosjektet 2011 - Thyra Lise Solem, Lars Stenvik, Aud Mikkelsen Tretvik, Kristian Hassel, Dag-Inge Øien, Egil Ingvar Aune, Per Sjögren, Marc Daverdin, Gunnar Austrheim, Magni Olsen Kyrkjeeide
Kartlegging av kalkskog i Nord-Trøndelag III 2011 - Håkon Holien, Kristian Hassel, Tor Erik Brandrud
Phylogeography of Sphagnum - The Sphagnum wulfianum story 2011 ForBio annual meeting 2011 - Magni Olsen Kyrkjeeide, Hans K. Stenøien, Kristian Hassel, Kjell Ivar Flatberg
Budalen. Biodiversity - plants 2011 DYLAN Workshop - Dag-Inge Øien, Kristian Hassel
Biologiske og vannkjemiske undersøkelser i forbindelse med planlagt rassikring av Hofstadelva, Stjørdal 2011 - Gaute Kjærstad, Morten Andre Bergan, Kristian Hassel, Per Gustav Thingstad, Karl Jan Aanes, Jo Vegar Arnekleiv
2010
En bildereise gjennom vår midtnorske naturarv 2010 - Per Gustav Thingstad, Egil Ingvar Aune, Gunnar Austrheim, Torkild Bakken, Kjell Ivar Flatberg, Eli Fremstad, Otto Frengen, Kristian Hassel, Jan Ivar Koksvik, Asbjørn Moen, Gunn Paulsen, Tommy Prestø, Jørgen Rosvold, Lisbeth Schanke Røseth, Nina Sletvold, Dag-Inge Øien, Kaare Aagaard, Véronique Aalmo
Phylogeography of peat mosses: the Sphagnum palustre case 2010 Æressymposium for Kjell Ivar Flatberg - Kristian Hassel, Rossana Segreto, Magni Olsen Kyrkjeeide, Hans K. Stenøien, Kjell Ivar Flatberg
Post glacial colonization of Fennoscandia: The Sphagnum wulfianum story 2010 Æressymposium for Kjell Ivar Flatberg - Magni Olsen Kyrkjeeide, Hans K. Stenøien, Kristian Hassel, Kjell Ivar Flatberg
Fra Noas ark til dobbel helix. Delutstilling i NTNU Vitenskapsmuseets jubileumsutstilling KUNNSKAPSLARM 2010 - Birgitta Berglund, Anne Stalsberg, Merete Moe Henriksen, Leena Aulikki Airola, Øylov Emma Cyvin, Elin Sandbakk, Morten Steffensen, Geir Grønnesby, Per Gatzschmann, Frank Eidstumo, Kaare Aagaard, Torbjørn Ekrem, Torkild Bakken, Per Gustav Thingstad, Kristian Hassel, Hans K. Stenøien, Jørgen Rosvold, Daniela Pawel, Arnfinn Stendahl Rokne, Zdenka Perlikova
2009
Kartlegging av kalkskog i Steinkjer og Snåsa kommuner i Nord-Trøndelag 2009 - Kristian Hassel, Håkon Holien, Tor Erik Brandrud
Forvaltning og overvåking av biologisk mangfold på Tautra, Nord-Trøndelag 2009 - Dag-Inge Øien, Gunnar Austrheim, Per Gustav Thingstad, Kristian Hassel, Thyra Lise Solem, Kaare Aagaard
Kartlegging av kalkskog i Steinkjer og Snåsa kommuner i Nord-Trøndelag 2009 - Kristian Hassel, Håkon Holien, Tor Erik Brandrud
Myr, kilde og flommark - Miljøforhold og påvirkninger på rødlistearter 2009 - Asbjørn Moen, Dag Dolmen, Kristian Hassel, Frode Ødegaard
ColdGene - Collection of Genetic Resources from Endangered Species in Norway 2009 ConGen, Integrating - Integrating population genetics and conservation biology - Rossana Segreto, Kaare Aagaard, Reidar Andersen, Torkild Bakken, Renate Kvernberg Bardal, Dag Dolmen, Torbjørn Ekrem, Eli Fremstad, Kristian Hassel, Kristian Hveem, Hans K. Stenøien
ColdGene - Collection of Genetic Resources from Endangered Species in Norway 2009 ISBER Annual Meeting - Rossana Segreto, Kaare Aagaard, Reidar Andersen, Torkild Bakken, Renate Kvernberg Bardal, Dag Dolmen, Torbjørn Ekrem, Eli Fremstad, Kristian Hassel, Kristian Hveem, Hans K. Stenøien
Moser som klimavarsler 2009 - Tove Eivindsen, Kristian Hassel, Tommy Prestø
2008
Rødlistearter i Trondheim kommune. Botanikk 2008 - Eli Fremstad, Kristian Hassel, Håkon Holien, Thyra Lise Solem
Særegen vegetasjon i fosserøyken 2008 - Karl H. Brox, Kristian Hassel
På jakt etter barkhårstjerna 2008 - Kristian Hassel, Stein Bjøru
Rødlistearter i Trondheim : Botanikk Red list species in Trondheim : Botany 2008 - Eli Fremstad, Kristian Hassel, Håkon Holien, Thyra Solem
2007
Botaniske registreringer og vurderinger i Høyrokampen-området 2007 - Kristian Hassel, R. Y. Berg, Reidar Haugan, B. H. Larsen
Carl von Linné 300 år 2007 - Kristian Hassel, Ane Senstad Guldahl, Kaare Aagaard, Roger Skjelbakken, Per Gatzschmann, Torkild Bakken, Elin Sandbakk, Arnfinn Stendahl Rokne, Øylov Emma Cyvin, Dag-Inge Øien
2006
Naturfaglige registreringer i forbindelse med vern av skog på Statsskog SFs eiendommer. Del 2 Årsrapport for registreringer i Midt-Norge 2005 2006 - Geir Gaarder, Tor Erik Brandrud, Jon T. Klepsland, Sigve Reiso, Kim Abel, Egil Bendiksen, Arne Heggland, Anne Sverdrup-Thygeson, Dag Svalastog, Helge Fjeldstad, Kristian Hassel, Terje Blindheim
Skogregistreringer på utvalgte eiendommer under ordningen med "frivillig vern" i Øst-Norge og Midt-Norge 2005 2006 - Kim Abel, Egil Bendiksen, Terje Blindheim, Tor Erik Brandrud, Kristian Hassel, Arne Heggland, Tom Hellik Hofton, Jon T. Klepsland, Sigve Reiso, Anne Sverdrup-Thygeson
2005
Effekter av sauebeite på planter i Hol, Buskerud 2005 Utmarksnæring i Norge - Gunnar Austrheim, Marianne Evju, Kristian Hassel, Synnøve Lindgren, Atle Mysterud
Effekter av sauebeiting på vegetasjon - generell introduksjon 2005 Utmarksnæring i Norge - Gunnar Austrheim, Marianne Evju, Kristian Hassel, Atle Mysterud
Mikroskopisk sjeldenhet 2005 - Kristian Hassel, John Bjarne Jordal, Erlend Ropstad
2002
Preliminary distribution maps of bryophytes in Northwestern Europe. Vol. 1 Hepaticae and Anthocerotae 2002 - Lars Söderström, Kristian Hassel, Kristian Hassel, Henrik Weibull, Henrik Weibull, Austra Abolina, Austra Abolina, Hans H. Blom, Kell Damsholt, Kell Damsholt, Reino Fagerstén, Reino Fagerstén, Kjell Ivar Flatberg, Arne A. Frisvoll, Arne A. Frisvoll, Matti Haapasaari, Matti Haapasaari, Tomas Hallingbäck, Tomas Hallingbäck, Lars Hedenäs, Lars Hedenäs, Einar Heegaard, Einar Heegaard, Sanna Huttunen, Sanna Huttunen, Nele Ingerpuu, Nele Ingerpuu, Pekka Isoviita, Pekka Isoviita, Bergthor Johannsson, Bergthor Johannsson, Ilona Jukoniene, Ilona Jukoniene, Timo Koponen, Timo Koponen, Jette Lewinsky-Haapasaari, Jette Lewinsky-Haapasaari, Martti Ohenoja, Martti Ohenoja, Rune H. Økland, Rune H. Økland, Sinikka Piippo, Sinikka Piippo, Tommy Prestø, Kimmo Syrjänen, Kimmo Syrjänen, Karen Thingsgaard, Karen Thingsgaard, Tauno Ulvinen, Tauno Ulvinen, Kai Vellak, Kai Vellak, Risto Virtanen, Risto Virtanen
1998
Preliminary distribution maps of bryophytes in northwestern Europe 1998 . - Lars Söderström, Austra Abolina, Hans H Blom, Kell Damsholt, Johannes Enroth, Reino Fagerstén, Arne A. Frisvoll, Matti Haapasaari, Kristian Hassel, Lars Hedenäs, Einar Heegaard, fl m