G. Kozlowski publications

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Pittet L, Fragnière Y, Grünig S, Bétrisey S, Clément B, Gerber E, Ronikier M, Kozlowski G, Parisod C. 2020. Genetic structure of the narrow endemic Papaver occidentale indicates complex patterns of survival and immigration in the Western Prealps. Alpine Botany (in press).

Yousefzadeh H, Rajaei R, Larsen B, Kozlowski G. 2020. S-allele frequency and genetic diversity of Malus orientalis Uglitzk along an altitudinal gradient in the Hyrcanian forest. Forest Systems (in press).

Felber F, Guerra V, Bétrisey S, Kozlowski G. Trésor végétal. Comment sauvegarder nos plantes menacées (ISBN : 978-3-258-08212-7). Editions Haupt, Bern. pp. 112

Felber F, Guerra V, Bétrisey S, Kozlowski G. Botanischer Schatz. Wie man bedrohte Arten vor dem Aussterben rettet (ISBN: 978-3-258-08213-4). Haupt Verlag, Bern. pp. 112.

Bétrisey S, Arrigo N, Graf L, Bilat J, Gerber E, Kozlowski G. 2020. Glacial relicts in the Alps: the decline and conservation strategy for Nuphar pumila (Nymphaeaceae). Alpine Botany 130: 89-99.

Song Y-G, Fragnière Y, Meng H-H, Li Y, Bétrisey S, Corrales A, Manchester S, Deng M, Jasinska A, Van Sam H, Kozlowski G. 2020. Global biogeographic synthesis and priority conservation regions of the relict tree family Juglandaceae. Journal of Biogeography 47: 643-657.

Wawrzyniak M, Jasinska AK, Chmielarz P, Kozlowski G. 2020. Desiccation, dormancy and storage of Pterocarya fraxinifolia (Juglandaceae) seeds: application in Hyrcanian and Colchian forest conservation. Canadian Journal of Forest Research 50: 24-31.




Kozlowski G, Song Y-G, Bétrisey S. 2019. Pterocarya tonkinensis. The IUCN Red List of Threatened Species 2019. e.T191414A1978789.

Song Y-G, Bétrisey S, Kozlowski G. 2019. Pterocarya stenoptera. The IUCN Red List of Threatened Species 2019. e.T66816454A66816456.

Song Y-G, Bétrisey S, Kozlowski G. 2019. Pterocarya rhoifolia. The IUCN Red List of Threatened Species 2019. e.T66816434A158965576.

Song Y-G, Bétrisey S, Kozlowski G. 2019. Pterocarya macroptera. The IUCN Red List of Threatened Species 2019. e.T66816136A66816223.

Kozlowski G, Song Y-G, Bétrisey S. 2019. Pterocarya hupehensis. The IUCN Red List of Threatened Species 2019. e.T66816108A152835141.

Bétrisey S, Song Y-G, Yousefzadeh H, Kozlowski G. 2019. Pterocarya fraxinifolia. The IUCN Red List of Threatened Species 2019. e.T66815986A66816002.

Song Y-G, Petipierre B, Deng M, Wu J-P, Kozlowski G. 2019. Predicting climate change impacts on the threatened Quercus arbutifolia in montane cloud forests in southern China and Vietnam: Conservation implications. Forest Ecology and Management 444: 269-279.

Naciri Y, Christe C, Bétrisey S, Song Y-G, Deng M, Garfi G, Kozlowski G. 2019. Species delimitation in the East Asian species of the relict tree genus Zelkova (Ulmaceae): a complex history of diversification and admixture among species. Molecular Phylogenetics and Evolution 134: 172-185.

Yousefzadeh H, Khodadost A, Abdollahi H, Ali SS, Kozlowski G, Bina H. 2019. Biogeography and phylogenetic relationships of the Hyrcanian wild apple using cpDNA and ITS noncoding sequences. Systematics and Biodiversity 17: 295-307.

Carra A, Catalano C, Badalamenti O, Carimi F, Pasta S, Motisi A, Abbate L, La Bella F, Fazan L, Kozlowski G, Garfi G. 2019. Overcoming sexual sterility in conservation of endangered species: the prominent role of biotechnology in multiplication of Zelkova sicula (Ulmaceae), a relict tree at the brink of extinction. Plant Cell, Tissue and Organ Culture 137: 139-148.

Yousefzadeh H, Rajaei R, Jasinska AK, Walas L, Fragnière Y, Kozlowski G. 2019. Genetic diversity and differentiation of the riparian relict tree Pterocarya fraxinifolia (Juglandaceae) along altitudinal gradients in the Hyrcanian forest (Iran). Silva Fennica 52: 10000.

Yousefzadeh H, Colagar AH, Yousefi E, Badbar M, Kozlowski G. 2019. Phylogenetic relationship and genetic differentiation of Populus caspica and P. alba using cpDNA and ITS noncoding sequences. Journal of Forestry Research 30: 451-461.




Bétrisey S, Yousefzadeh H, Kozlowski G (2018). Zelkova carpinifolia. The IUCN Red List of Threatened Species 2018: e.T31303A131166773.

Song Y-G, Bétrisey S & Kozlowski G (2018). Zelkova schneideriana. The IUCN Red List of Threatened Species 2018: e.T131155456A131155458.

Bétrisey S, Song Y-G & Kozlowski G (2018). Zelkova serrata. The IUCN Red List of Threatened Species 2018: e.T61967528A61967548.

Abukrees F, Kozlowski G, Meade CV (2018). Characterization of diverse ploidy in the Arctic-Alpine Arenaria ciliata species complex (Caryophyllaceae) using shoot meristem staining and flow cytometry analysis of archived frozen tissue. Plant Species Biology 33: 144-152.

Kozlowski G, Bétrisey S, Song Y-G & Fazan L, Garfi G (2018). The Red List of Zelkova. Natural History Museum Fribourg, Switzerland. pp. 32 (book).

Kozlowski G, Bétrisey S & Song Y-G (2018). Wingnuts (Pterocarya) and walnut family. Relict trees: linking the past, present and future. Natural History Museum Fribourg, Switzerland. pp. 128 (book).

Fragnière Y, Ruch N, Kozlowski E & Kozlowski G (2018). Botanische Grundgenntnisse auf einen Blick: 40 mitteleuropäische Pflanzenfamilien / Connaissances botaniques de base en un coup d'oeil: 40 familles de plantes d'Europe centrale. Haupt, Bern. pp. 320 (book).




Garfi G, Pasta S, Fazan L & Kozlowski G (2017). Zelkova sicula. The IUCN Red List of Threatened Species 2017. e.T61678A86134112.

Garfi G, Pasta S, Fazan L & Kozlowski G (2017). Zelkova sicula. In: Pasta S, Perez-Graber A, Fazan L, Montmollin B. de. (Editors) 2017. The Top 50 Mediterranean Island Plants. UPDATE 2017. IUCN/SSC/Mediterranean Plant Specialist Group. Neuchâtel (Switzerland).

Fazan L, Guillet S, Corona C, Kozlowski G & Stoffel M (2017). Imprisoned in the Cretan mountains: How relict Zelkova abelicea (Ulmaceae) trees cope with Mediterranean climate. Science of the Total Environment 599-600: 797-805.

D'Andrea L, Meirmans P, van de Wiel C, Guadagnuolo R, van Treuren R, Kozlowski G, de Nijs H & Felber F (2017). Molecular biogeography of prickly lettuce (Lactuca serriola L.) shows traces of recent range expansion. Journal of Heredity 108: 194-206.

Mostajeran F,  Yousefzadeh H,  Davitashvili N, Kozlowski G & Akbarinia M (2017). Phylogenetic relationships of Pterocarya (Juglandaceae) with an emphasis on the taxonomic status of Iranian populations using ITS and trnH-psbA sequence data. Plant Biosystems 151: 1012-1021.




Arrigo N, Bétrisey S, Graf L, Bilat J, Gerber E & Kozlowski G (2016). Hybridization as a threat in climate relict Nuphar pumila (Nymphaeaceae). Biodiversity & Conservation 85: 1863-1877. 

Frey D, Arrigo N, Granereaau, Sarr A, Felber F & Kozlowski G (2016). Parallel declines in species and genetic diversity driven by anthropogenic disturbance: a multi-species approach in a French Atlantic dune system. Evolutionary Applications 9: 479-488.




Fragnère Y, Haas Q, Bétrisey S & Kozlowski G (2015). L'érable à feuilles d'obier (Acer opalus) dans le canton de Fribourg. Bull. Soc. Frib. Sc. Nat. 107: 63-73.

Jasinska AK, Rucinska B, Kozlowski G, Bétrisey S, Safarov H, Boratynska K & Boratynsk A (2015). Morphological differentiation of leaves in the relict tree Zelkova carpinifolia (Ulmaceae) Dendrobiology 74: 109-122.

Gratzfeld J, Kozlowski G, Fazan L, Buord S, Garfì G, Pasta S, Gotsiou P, Fournaraki C & Dimitriou D (2015). Conservation challenges of Zelkova sicula and Z. abelicea – two Mediterranean narrow endemics. J Botanic Gardens Conservation Int. 12: 21-25.

Kozlowski G, Stoffel M, Bétrisey S, Cardinaux L & Mota M (2015). Hydrophobia of gymnosperms: myth or reality? A global analysis. Ecohydrology 8: 105-112.

Fragnière Y, Bétrisey S, Cardinaux L, Stoffel M & Kozlowski G (2015). Fighting their last stand? A global analysis of the distribution and conservation status of gymnosperms. Journal Biogeography 42: 809-820. 

Maharramova EH, Safarov HM, Kozlowski G, Borsch T & Muller LA (2015). Analysis of nuclear microsatellites reveals limited differentiation between Colchic and Hyrcanian populations of the wind-pollinated relict tree Zelkova carpinifolia (Ulmaceae). American Journal of Botany 102: 119-128 (doi:10.3732/ajb.1400370).




Gerber E, Kozlowski G & Kozlowski E. 2014. Relict trees of Azerbaijan - a unique natural heritage. Visions of Azerbaijan. July/October:38-43.

Bosque M, Adamogianni M-I, Bariotakis M, Fazan L, Stoffel M, Garfi G, Gratzfeld J, Kozlowski G, Pirintsos S. 2014. Fine-scale spatial patterns of the Tertiary relict Zelkova abelicea (Ulmaceae) indicate possible processes contributing to its persistence to climate changes. Regional Environmental 14: 835-849.

Christe C, Kozlowski G, Frey D, Bétrisey D, Maharramova E, Garfi G, Pirintsos S, Naciri Y. 2014. Footprints of past intensive diversification and structuring for the genus Zelkova (Ulmaceae) in southwest Eurasia. Journal of Biogeography 41: 1081-1093.

Christe C, Kozlowski G, Frey D, Fazan L, Bétrisey D, Pirintsos S, Gratzfeld J, Naciri Y. 2014. Do living ex situ collections capture the genetic variation of wild populations? A molecular analysis of two relict tree species Zelkova abelicea and Z. carpinifolia. Biodiversity and Conservation 23: 2945-2959 (doi: 10.1007/s10531-014-0756-9).

Kozlowski G, Frey D, Fazan L, Egli B, Bétrisey S, Gratzfeld J, Garfi G, Pirintsos S. 2014. Tertiary relict tree Zelkova abelicea Ulmaecae): distribution, population structure and conservation status. Oryx 48: 80-87.




Berthouzoz M, Maendly S, Bétrisey S, Mangili S, Prunier P, Lexer Ch, Kozlowski G. 2013. Some like it cold: distribution, ecology and phylogeny of Arenaria bernensis FAVARGER (Caryophyllaceae) from the western Prealps in Switzerland. Alpine Botany 123: 65-75.

Kozlowski G, Bondallaz L. 2013. Urban aquatic ecosystems: habitat loss and depletion of native macrophyte diversity during the 20th century. Urban Ecosystems 16: 543-551.




Fazan L, Stoffel M, Frey D, Pirintsos S, Kozlowski G. 2012. Small does not mean young: age estimation of severely browsed trees in anthropogenic Mediterranean landscapes. Biological Conservation 153: 97–100.

Frey D, Haag C, Kozlowski G, Tison J-M, Mraz P. 2012. High genetic and morphological diversity despite range contraction in the diploid Hieracium eriophorum (Asteraceae) endemic to the coastal sand dunes of south-weste France. Botanical Journal of the Linnean Society of London 169: 365-377.

Frey D, Kozlowski G, Granereau G, Löwy M. 2012. Alyssum loiseleurii P. Fourn. subsp. loiseleurii (Brassicaceae), a threatened narrow endemic of the French Atlantic coast. Bulletin de la Société Linnéenne de Bordeaux 147: 285-300.

Kozlowski G, Gibbs D, Fun H, Frey D, Gratzfeld J. 2012. Conservation of threatened relict trees through living ex situ collections: lessons from the global survey of the genus Zelkova (Ulmaceae). Biodiversity and Conservation 21: 671-685.




Arrigo N, Buerki S, Sarr A, Guadagnuolo R, Kozlowski G. 2011. Phylogeography of the monocot genus Baldellia (Alismataceae): Mediterranean refugia, suture zones and implications for conservation. Molecular Phylogenetics and Evolution 58: 36-45.

Rocha J, Crespi AL, Garcia-Barussio M, Kozlowski G, Almeida R, Honrado J, Talavera S, Amich F. 2011. Morpho-environmental characterization of the genus Baldellia Parl. (Alismataceae) in the Iberian Peninsula, Balearic Islands and North Morocco. Plant Biosystems 146: 334-344.




D’Andrea L, Broennimann O, Kozlowski G, Guisan A, Morin X, Keller-Senften J, Felber F. 2009. Climate change, anthropogenic disturbance and the northward expansion of Lactuca serriola (Asteraceae). Journal of Biogeography 36: 1573-1587.

Kozlowski G, Bürcher S, Fleury M, Huber F. 2009. The Atlantic elements in the Swiss flora - distribution, diversity, and conservation status. Biodiversity and Conservation 18: 649-662.

Kozlowski G, Matthies D. 2009. Habitat differentiation in the aquatic plant genus Baldellia sp. (Alismataceae): implications for conservation. Aquatic Botany 90: 110-118.

Kozlowski G, Rion S, Python A, Riedo S. 2009. Global conservation status assessment of the threatened aquatic genus Baldellia (Alismataceae): challenges and limitations. Biodiversity and Conservation 18: 2307-2325.

Kozlowski G, Vallelian S. 2009. Eutrophication and endangered aquatic plants: An experimental study on Baldellia ranunculoides (L.) Parl. (Alismataceae). Hydrobiologia 635: 181-187.




Kozlowski G, Jones RA, Vuille-Nicholls F-L. 2008. Biological Flora of the Central Europe: Baldellia ranunculoides (Alismataceae). Perspectives in Plant Ecology, Evolution and Systematics 10: 109-142.

Kozlowski G. 2008. Is the global conservation status assessment of a threatened taxon a utopia? Biodiversity and Conservation 17: 445-448.




Felber F, Kozlowski G, Arrigo N, Guadagnuolo R. 2007. Genetic and ecological consequences of transgene flow to the wild flora. Advances in Biochemical Engineering / Biotechnology 107: 173-205.




Kozlowski G, Eggenberg S. 2005. Vorkommen der Kleinen Teichrose Nuphar pumila und des Hybrids N. x intermedia in der Schweiz. Botanica Helvetica 115: 125-136.




U. Landergott, G. Kozlowski, J.J. Schneller & R. Holderegger (2003). The importance of recent population history for understanding geneticdiversity in threatened species, with special reference to Dryopteris cristata. Fern Gazette 17: 37-49.




Kozlowsi G. (2001). Bedeutung der Herbarien des Naturhistorischen Museums Freiburg (Schweiz) für die Erforschung und Erhaltung der Freiburger Flora. Bull. Soc. Frib. Sc. Nat. 90: 49-59.

Kozlowski G. (2001). Une plante rarissime dans le canton de Fribourg: le Nénuphar nain [Nuphar pumila (Timm.) DC.]. Bull. Soc. Frib. Sc. Nat. 90: 60-71.

Landergott U, R. Holderegger, Kozlowski G., Schneller J. (2001). Historical bottlenecks decrease genetic diversity in natural populations of Dryopteris cristata. Heredity, 87: 344-355.


2000 and before


Landergott U, R. Holderegger, Schneller J., Kozlowski G. (2000). Populationsgeschichte des seltenen Kammfarns Dryopteris cristata in der Schweiz. Botanica Helvetica 110: 151-170.

Purro Ch, Kozlowski G. (2000). Situation du sabot de Vénus (Cypripedium calceolus L.) dans le canton de Fribourg, Bull. Soc. Frib. Sc. Nat. 89: 117-131.

Kozlowski G. (2000). Gefährdungsstatus einiger Begleiter der Vulpia myuros-Gesellschaften im Kanton Freiburg. Bull. Soc. Frib. Sc. Nat., 89(2): 133-162.

Kozlowski G. (2000)- Der Kammfarn [Dryopteris cristata (L.) GRAY] in den Mösern von Düdingen und Sâles (Kt. Freiburg), Das Prothallium, 5: 1-5.

Kozlowski G & Métraux JP (1999). Antifungal properties of Norway Spruce (Picea abies (L.) Karst.) seedling homogenates. Acta Societatis Botanicorum Poloniae 68: 191-195.

Kozlowski G, Buchala  A & Métraux JP (1999). Methyl jasmonate protects Norway spruce [Picea abies (L.) Karst.] seedlings against Pythium ultimum Trow. Physiol. Molec. Plant Pathology 55: 53-58.