Blar i forfatter "Virtanen, Risto"

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    • The impact of thermal seasonality on terrestrial endotherm food web dynamics: a revision of the Exploitation Ecosystem Hypothesis 

      Oksanen, Tarja Maarit; Oksanen, Lauri; Vuorinen, Katariina; Wolf, Christopher; Mäkynen, Aurelia; Olofsson, Johan; Ripple, William J.; Virtanen, Risto; Utsi, Tove Aagnes (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-06)
      Many terrestrial endotherm food webs constitute three trophic level cascades. Others have two trophic level dynamics (food limited herbivores; plants adapted to tackle intense herbivory) or one trophic level dynamic (herbivorous endotherms absent, thus plants compete for the few places where they can survive and grow). According to the Exploitation Ecosystems Hypothesis (EEH), these contrasting ...

    • The positive effect of plant diversity on soil carbon depends on climate 

      Spohn, Marie; Bagchi, Sumanta; Biederman, Lori A.; Borer, Elizabeth T.; Braathen, Kari Anne; Bugalho, Miguel N.; Caldeira, Maria C.; Catford, Jane A.; Collins, Scott L.; Eisenhauer, Nico; Hagenah, Nicole; Haider, Sylvia; Hautier, Yann; Knops, Johannes M. H.; Koerner, Sally E.; Laanisto, Lauri; Lekberg, Ylva; Martina, Jason P.; Martinson, Holly; McCulley, Rebecca L.; Peri, Pablo L.; Macek, Petr; Power, Sally A.; Risch, Anita C.; Roscher, Christiane; Seabloom, Eric W.; Stevens, Carly; Veen, G. F. (Ciska); Virtanen, Risto; Yahdjian, Laura (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-19)
      Little is currently known about how climate modulates the relationship between plant diversity and soil organic carbon and the mechanisms involved. Yet, this knowledge is of crucial importance in times of climate change and biodiversity loss. Here, we show that plant diversity is positively correlated with soil carbon content and soil carbon-to-nitrogen ratio across 84 grasslands on six continents ...

    • sPlotOpen – An environmentally-balanced, open-access, global dataset of vegetation plots 

      Sabatini, Francesco Maria; Lenoir, Jonathan; Hattab, Tarek; Arnst, Elise Aimee; Chytrý, Milan; Dengler, Jürgen; De Ruffray, Patrice; Hennekens, Stephan M.; Jandt, Ute; Jansen, Florian; Kattge, Jens; Levesley, Aurora; Pillar, Valério D.; Purschke, Oliver; Sandel, Brody; Sultana, Fahmida; Aavik, Tsipe; Aćić, Svetlana; Agrillo, Emiliano; Álvarez, Miguel; Apostolova, Iva; Khan, Mohammed A. S. Arfin; Arroyo, Luzmila; Attorre, Fabio; Aubin, Isabelle; Banerjee, Arindam; Bergeron, Yves; Bergmeier, Erwin; Biurrun, Idoia; Björkman, Anne D.; Bonari, Gianmaria; Bondareva, Viktoria; Brunet, Jörg; Čarni, Andraž; Casella, Laura; Cayuela, Luis; Cerny, Tomas; Chepinoga, Victor; Csiky, János; Ćušterevska, Renata; De Bie, Els; De Gasper, André Luis; De Sanctis, Michele; Dimopoulos, Panayotis; Dolezal, Jiri; Dziuba, Tetiana; El-Sheikh, Mohamed Abd El-Rouf Mousa; Enquist, Brian; Ewald, Jörg; Fazayeli, Farideh; Field, Richard; Finckh, Manfred; Gachet, Sophie; Galán-De-Mera, Antonio; Garbolino, Emmanuel; Gholizadeh, Hamid; Giorgis, Melisa; Golub, Valentin; Alsos, Inger Greve; Grytnes, John Arvid; Guerin, Gregory Richard; Gutiérrez, Alvaro G.; Haider, Sylvia; Hatim, Mohamed Z.; Herault, Bruno; Mendoza, Guillermo Hinojos; Homeier, Jürgen; Kącki, Zygmunt; Karger, Dirk Nikolaus; Kavgaci, Ali; Kearsley, Elizabeth; Bruelheide, Helge; Hölzel, Norbert; Jiménez-Alfaro, Borja; Bauters, Marjin; Indreica, Adrian; Hubau, Wannes; Janssen, John A.M.; Jedrzejek, Birgit; Jentsch, Anke; Jürgens, Norbert; Kapfer, Jutta; Kavgaci, Ali; Kessler, Michael; Khanina, Larisa; Killeen, Timothy; Landucci, Flavia; Lengyel, Attila; Lens, Frederic; Lingner, Débora Vanessa; Liu, Hongyan; Lysenko, Tatiana; Mahecha, Miguel D.; Marcenò, Corrado; Martynenko, Vasiliy; Moeslund, Jesper Erenskjold; Mendoza, Abel Monteagudo; Mucina, Ladislav; Müller, Jonas V.; Munzinger, Jérôme; Naqinezhad, Alireza; Noroozi, Jalil; Nowak, Arkadiusz; Onyshchenko, Viktor; Overbeck, Gerhard E.; Pärtel, Meelis; Pauchard, Aníbal; Peet, Robert K; Peñuelas, Josep; Pèrez-Haase, Aaron; Peterka, Tomáš; Petřík, Petr; Peyre, Gwendolyn; Phillips, Oliver L.; Prokhorov, Vadim; Rašomavičius, Valerijus; Revermann, Rasmus; Rivas-Torres, Gonzalo; Rodwell, John S.; Ruprecht, Eszter; Rūsiņa, Solvita; Samimi, Cyrus; Schmidt, Marco; Schrodt, Franziska; Shan, Hanhuai; Shirokikh, Pavel; Šibík, Jozef; Šilc, Urban; Sklenář, Petr; Škvorc, Željko; Sparrow, Ben; Sperandii, Marta Gaia; Stančić, Zvjezdana; Svenning, Jens-Christian; Tang, Zhiyao; Tang, Cindy Q.; Tsiripidis, Ioannis; Vanselow, Kim André; Martínez, Rodolfo Vásquez; Vassilev, Kiril; Vélez-Martin, Eduardo; Venanzoni, Roberto; Vibrans, Alexander Christian; Violle, Cyrille; Virtanen, Risto; von Wehrden, Henrik; Wagner, Viktoria; Walker, Donald A.; Waller, Donald M.; Wang, Hua-Feng; Wesche, Karsten; Whitfeld, Timothy J. S.; Willner, Wolfgang; Wiser, Susan K.; Wohlgemuth, Thomas; Yamalov, Sergey; Zobel, Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-21)
      Motivation: Assessing biodiversity status and trends in plant communities is critical for understanding, quantifying and predicting the effects of global change on ecosystems. Vegetation plots record the occurrence or abundance of all plant species co-occurring within delimited local areas. This allows species absences to be inferred, information seldom provided by existing global plant datasets. ...

    • Where do the treeless tundra areas of northern highlands fit in the global biome system: toward an ecologically natural subdivision of the tundra biome 

      Virtanen, Risto; Oksanen, Lauri Kalervo; Oksanen, Tarja Maarit; Cohen, Juval; Forbes, Bruce C.; Johansen, Bernt; Käyhkö, Jukka; Olofsson, Johan; Pulliainen, Jouni; Tømmervik, Hans (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-15)
      According to some treatises, arctic and alpine sub-biomes are ecologically similar, whereas others find them highly dissimilar. Most peculiarly, large areas of northern tundra highlands fall outside of the two recent subdivisions of the tundra biome. We seek an ecologically natural resolution to this long-standing and far-reaching problem. We studied broad-scale patterns in climate and ...