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    • BioTIME: A database of biodiversity time series for the Anthropocene 

      Dornelas, Maria; Antao, Laura H.; Moyes, Faye; Bates, Amanda E.; Magurran, Anne E.; Adam, Dusan; Akhmetzhanova, Asem A.; Appeltans, Ward; Arcos, Jose Manuel; Arnold, Haley; Ayyappan, Narayanan; Badihi, Gal; Baird, Andres H.; Barbosa, Miguel; Barreto, Tiago Egydio; Bässler, Claus; Bellgrove, Alecia; Belmaker, Jonathan; Benedetti-Cecchi, Lisandro; Bett, Brian J.; Bjorkman, Anne D.; Błazewicz, Magdalena; Blowes, Shane A.; Bloch, Christopher P.; Bonebrake, Timothy C.; Boyd, Susan; Bradford, Matt; Brooks, Andrew J.; Brown, James H.; Bruelheide, Helge; Budy, Phaedra; Carvalho, Fernando; Castaneda-Moya, Edward; Chen, Chaolun Allen; Chamblee, John F.; Chase, Tory J.; Collier, Laura Siegwart; Cooper, Elisabeth J.; Cornelissen, J. Hans C.; Cotano, Unai; Crow, Shannan Kyle; Damasceno, Gabriella; Davies, Claire H.; Davis, Robert A.; Day, Frank P.; Degraer, Steven; Doherty, Tim S.; Dunn, Timothy E.; Durigan, Giselda; Duffy, J. Emmett; Edelist, Dor; Edgar, Graham J.; Elahi, Robin; Elmendorf, Sarah C.; Enemar, Anders; Ernest, S. K. Morgan; Escribano, Rubén; Estiarte, Marc; Evans, Brian S.; Fan, Tung-Yun; Farah, Fabiano Turini; Fernandes, Luiz Loureiro; Fábio, Z. Farneda; Fidelis, Alessandra; Fitt, Robert; Fosaa, Anna Maria; Franco, Geraldo Antonio Daher Correa; Frank, Grace E.; Fraser, William R.; García, Hernando; Gatti, Roberto Cazzolla; Givan, Or; Gorgone-Barbosa, Elizabeth; Gould, William A.; Gries, Corinna; Grossman, Gary D.; Gutierréz, Julio R.; Hale, Stephen; Harmon, Mark E.; Harte, John; Haskins, Gary; Henshaw, Donald L.; Hermanutz, Luise; Hidalgo, Pamela; Higuchi, Pedro; Hoey, Andrew; Hoey, Gert Van; Hofgaard, Annika; Holeck, Kristen; Hollister, Robert D.; Holmes, Richard; Hoogenboom, Mia; Hsieh, Chih-hao; Hubbell, Stephen P.; Huettmann, Falk; Huffard, Christine L.; Hurlbert, Allen H.; Ivanauskas, Natália Macedo; Janík, David; Jandt, Ute; Jazdzewska, Anna; Johannessen, Tore; Johnstone, Jill; Jones, Julia; Jones, Faith A. M.; Kang, Jungwon; Kartawijaya, Tasrif; Keeley, Erin C.; KElt, Douglas A.; Kinnear, Rebecca; Klanderud, Kari; Knutsen, Halvor; Koenig, Christopher C.; Kortz, Alessandra R.; Král, KAmil; Kuhnz, Linda A.; Kuo, Chao-Yang; Kushner, David J.; Laguionie-Marchais, Claire; Lancaster, Lesley T.; Lee, Cheol Min; Lefcheck, Jonathan S.; Lévesque, Esther; Lightfoot, DAvid; Lloret, Francisco; Lloyd, John D.; López-Baucells, Adrià; Louzao, Maite; Madin, Joshua S.; Magnússon, BorgÞór; Malmud, Shahar; Matthews, Iain; McFarland, Kent P.; McGill, Brian; McKnight, Diane; McLarney, William O.; Meador, Jason; Meserve, Peter L.; Metcalfe, Daniel J.; Meyer, Christoph F. J.; Michelsen, Anders; Milchakova, Nataliya; Moens, Tom; Moland, Even; Moore, Jon; Moreira, Carolina Mathias; Müller, Jörg; Murphy, Grace; Myers-Smith, Isla H.; Myster, Randall W.; Naumov, Andrew; Neat, Francis; Nelson, James A.; Nelson, Michael Paul; Newton, Stephen F.; Norden, Natalia; Oliver, Jeffrey C.; Olsen, Esben M.; Onipchenko, Vladimir G.; Pabis, Krzysztof; Pabst, Robert J.; Paquette, Alain; Pardede, Sinta; Paterson, David M.; Péllisier, Raphaël; Peñuelas, Josep; Pérez-Matus, Alejandro; Pizarro, Oscar; Pomati, Francesco; Post, Eric; Prins, Herbert H. T.; Priscu, John C.; Provoost, Pieter; Prudic, Kathleen L.; Pulliainen, Erkki; Ramesh, B. R.; Ramos, Olivia Mendivil; Rassweiler, Andrew; Rebelo, Jose Eduardo; Reed, Daniel C.; Reich, Peter B.; Remillard, Suzanne M.; Richardson, Anthony J.; Richardson, J. Paul; Rijn, Itai van; Rocha, Ricardo; Rivera-Monroy, Victor H.; Rixen, Christian; Robinson, Kevin P.; Rodrigues, Ricardo Ribeiro; Rossa-Feres, Denise de Cerqueira; Rudstam, Lars; Ruhl, Henry; Ruz, Catalina S.; Sampaio, Erica M.; Rybicki, Nancy; Rypel, Andrew; Sal, Sofia; Salgado, Beatriz; Santos, Flavio A. M.; Savassi-Coutinho, Ana Paula; Scanga, Sara; Schmidt, Jochen; Schooley, Robert; Setiawan, Fakhrizal; Shao, Kwang-Tsao; Shaver, Gaius R.; Sherman, Sally; Sherry, Thomas W.; Sicinski, Jacek; Sievers, Caya; Silva, Ana Carolina da; Silva, Fernando Rodrigues da; Silveira, Fabio L.; Slingsby, Jasper; Smart, Tracey; Snell, Sara J.; Soudzilovskaia, Nadejda A.; Souza, Gabriel B. G.; Souza, Flaviana Maluf; Souza, Vinícius Castro; Stallings, Christopher D.; Stanforth, Rowan; Stanley, Emily H.; Sterza, José Mauro; Stevens, Maarten; Stuart-Smith, Rick; Suarez, Yzel Rondon; Supp, Sarah; Tamashiro, Jorge Yoshio; Tarigan, Sukmaraharja; Thieda, Gary P.; Thorn, Simon; Tolvanen, Anne; Toniato, Maria Teresa Zugliani; Totland, Ørjan; Twilley, Robert R.; Vaitkus, Gediminas; Valdivia, Nelson; Vallejo, Martha Isabel; Valone, Thomas J.; Colen, Carl Van; Vanaverbeke, Jan; Venturoli, Fabio; Verheye, Hans M.; Vianna, Marcelo; Vieira, Rui P.; Vrska, Tomás; Vu, Con Quang; Vu, Lien Van; Waide, Robert B.; Waldock, Conor; Watts, Dave; Webb, Sara; Wesolowski, Tomasz; White, Ethan P.; Widdicombe, Claire E.; Wilgers, Dustin; Williams, Richard; Williams, Stefan B.; Williamson, Mark; Willig, Michael R.; Willis, Trevor J.; Wipf, Sonja; Woods, Kerry D.; Woehler, Eric J.; Zawada, Kyle; Zettler, Michael L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-24)
      <p><i>Motivation</i>: The BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community‐led open‐source database of biodiversity time series. Our goal is to accelerate and ...

    • Can bryophyte groups increase functional resolution in tundra ecosystems? 

      Lett, Signe; Jonsdottir, Ingibjorg Svala; Cooper, Elisabeth; Becker-Scarpitta, Antoine; Christiansen, Casper T.; During, Heinjo; Ekelund, Flemming; Henry, Gregory H. R.; Lang, Simone I.; Michelsen, Anders; Rousk, Kathrin; Alatalo, Juha M.; Betway, Katlyn R.; Busca, Sara; Callaghan, Terry; Carbognani, Michele; Cornelissen, Hans C.; Dorrepaal, Ellen; Egelkraut, Dagmar; Elumeeva, Tatiana G.; Hollister, Robert D.; Jägerbrand, Annika K.; Keuper, Frida; Klanderud, Kari; Lévesque, Esther; Liu, Xin; May, Jeremy; Michel, Pascale; Mörsdorf, Martin; Petraglia, Alessandro; Rixen, Christian; Robroek, Bjorn J.M.; Rzepczynska, Agnieszka M.; Soudzilovskaia, Nadeja A.; Tolvanen, Anne; Vandvik, Vigdis; Volkov, Igor; Volkova, Irina; van Zuijlen, Kristel (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-30)
      The relative contribution of bryophytes to plant diversity, primary productivity, and ecosystem functioning increases towards colder climates. Bryophytes respond to environmental changes at the species level, but because bryophyte species are relatively difficult to identify, they are often lumped into one functional group. Consequently, bryophyte function remains poorly resolved. Here, we explore ...

    • Can bryophyte groups increase functional resolution in tundra ecosystems? 

      Lett, Signe; Jónsdóttir, Ingibjörg Svala; Becker-Scarpitta, Antoine; Christiansen, Casper T.; During, Heinjo; Ekelund, Flemming; Henry, Greg H.R.; Lang, Simone; Michelsen, Anders; Rousk, Kathrin; Alatalo, Juha; Betway, Katlyn Rose; Busca, Sara; Callaghan, Terry; Carbognani, Michele; Cooper, Elisabeth J.; Cornelissen, J. Hans C.; Dorrepaal, Ellen; Egelkraut, Dagmar Dorothea; Elumeeva, Tatiana G.; Haugum, Siri Vatsø; Hollister, Robert D.; Jägerbrand, Annika K.; Keuper, Frida; Klanderud, Kari; Lévesque, Esther; Liu, Xin; May, Jeremy L.; Michel, Pascale; Mörsdorf, Martin; Petraglia, Alessandro; Rixen, Christian; Robroek, Bjorn J.M.; Rzepczynska, Agnieszka M.; Soudzilovskaia, Nadejda A.; Tolvanen, Anne; Vandvik, Vigdis; Volkov, Igor; Volkova, Irina; van Zuijlen, Kristel (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-30)
      The relative contribution of bryophytes to plant diversity, primary productivity, and ecosystem functioning increases towards colder climates. Bryophytes respond to environmental changes at the species level, but because bryophyte species are relatively difficult to identify, they are often lumped into one functional group. Consequently, bryophyte function remains poorly resolved. Here, we explore ...

    • Deepened winter snow increases stem growth and alters stem δ13C and δ15N in evergreen dwarf shrub Cassiope tetragona in high-arctic Svalbard tundra 

      Blok, Daan; Weijers, Stef; Welker, Jeffrey M.; Cooper, Elisabeth J.; Michelsen, Anders; Löffler, Jörg; Elberling, Bo (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-14)
      Abstract Deeper winter snow is hypothesized to favor shrub growth and may partly explain the shrub expansion observed in many parts of the arctic during the last decades, potentially triggering biophysical feedbacks including regional warming and permafrost thawing.Weexperimentally tested the effects of winter snow depth on shrub growth and ecophysiology by measuring stem length and stem hydrogen ...

    • Deepened winter snow significantly influences the availability and forms of nitrogen taken up by plants in High Arctic tundra 

      Mörsdorf, Martin Alfons; Baggesen, Nanna Schrøder; Yoccoz, Nigel Gilles; Michelsen, Anders; Elberling, Bo; Ambus, Per Lennart; Cooper, Elisabeth J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-13)
      Climate change may alter nutrient cycling in Arctic soils and plants. Deeper snow during winter, as well as summer warming, could increase soil temperatures and thereby the availability of otherwise limiting nutrients such as nitrogen (N). We used fences to manipulate snow depths in Svalbard for 9 consecutive years, resulting in three snow regimes: 1) <i>Ambient</i> with a maximum snow depth of ...

    • Deeper snow alters soil nutrient availability and leaf nutrient status in high Arctic tundra 

      Semenchuk, Philipp; Elberling, Bo; Amtorp, Cecilie; Winkler, Judith; Rumpf, Sabine Bettina; Michelsen, Anders; Cooper, Elisabeth J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-24)
      Nitrogen (N) mineralization, nutrient availability, and plant growth in the Arctic are often restricted by low temperatures. Predicted increases of cold-season temperatures may be important for plant nutrient availability and growth, given that N mineralization is also taking place during the cold season. Changing nutrient availability may be reflected in plant N and chlorophyll content and lead to ...

    • Large loss of CO2 in winter observed across the northern permafrost region 

      Natali, Susan M.; Watts, Jennifer D.; Rogers, Brendan M.; Potter, Stefano; Ludwig, Sarah M.; Selbmann, Anne-Katrin; Sullivan, Patrick F.; Abbott, Benjamin W.; Arndt, Kyla A.; Birch, Leah; Björkman, Mats P.; Bloom, A. Anthony; Celis, Gerardo; Christensen, Torben R.; Christiansen, Casper Tai; Commane, Roisin; Cooper, Elisabeth J.; Crill, Patrick; Czimczik, Claudia; Davydov, Sergey; Du, Jinyang; Egan, Jocelyn E.; Elberling, Bo; Euskirchen, Eugenie S.; Friborg, Thomas; Genet, Hélène; Göckede, Mathias; Goodrich, Jordan P.; Grogan, Paul; Helbig, Manuel; Jafarov, Elchin E.; Jastrow, Julie D.; Kalhori, Aram A. M.; Kim, Yongwon; Kimball, John S.; Kutzbach, Lars; Lara, Mark J.; Larsen, Klaus S.; Lee, Bang-Yong; Liu, Zhihua; Loranty, Michael M.; Lund, Magnus; Lupascu, Massimo; Madani, Nima; Malhotra, Avni; Matamala, Roser; McFarland, Jack; McGuire, A. David; Michelsen, Anders; Minions, Christina; Oechel, Walter C.; Olefeldt, David; Parmentier, Frans-Jan W.; Pirk, Norbert; Poulter, Ben; Quinton, William; Rezanezhad, Fereidoun; Risk, David; Sachs, Torsten; Schaefer, Kevin; Schmidt, Niels M.; Schuur, Edward A. G.; Semenchuk, Philipp R.; Shaver, Gaius; Sonnentag, Oliver; Starr, Gregory; Treat, Claire C.; Waldrop, Mark P.; Wang, Yihui; Welker, Jeffrey; Wille, Christian; Xu, Xiaofeng; Zhang, Zhen; Zhuang, Qianlai; Zona, Donatella (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-21)
      Recent warming in the Arctic, which has been amplified during the winter, greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO<sub>2</sub>). However, the amount of CO<sub>2</sub> released in winter is not known and has not been well represented by ecosystem models or empirically based estimates. Here we synthesize regional in situ observations ...

    • Plant functional trait change across a warming tundra biome 

      Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Rüger, Nadja; Beck, Pieter S. A.; Blach-Overgaard, Anne; Blok, Daan; Cornelissen, J. Hans C.; Forbes, Bruce C.; Georges, Damien; Goetz, Scott J.; Guay, Kevin C.; Henry, Gregory H.R.; HilleRisLambers, Janneke; Hollister, Robert D.; Karger, Dirk N.; Kattge, Jens; Manning, Peter; Prevéy, Janet S.; Rixen, Christian; Schaepman-Strub, Gabriela; Thomas, Haydn J.D.; Vellend, Mark; Wilmking, Martin; Wipf, Sonja; Carbognani, Michele; Hermanutz, Luise; Lévesque, Esther; Molau, Ulf; Petraglia, Alessandro; Soudzilovskaia, Nadejda A.; Spasojevic, Marko J.; Tomaselli, Marcello; Vowles, Tage; Alatalo, Juha M.; Alexander, Heather D.; Anadon-Rosell, Alba; Angers-Blondin, Sandra; te Beest, Mariska; Berner, Logan; Björk, Robert G.; Buchwal, Agata; Buras, Allan; Christie, Katherine; Cooper, Elisabeth J.; Dullinger, Stefan; Elberling, Bo; Eskelinen, Anu; Frei, Esther R.; Grau, Oriol; Grogan, Paul; Hallinger, Martin; Semenschuk, Philipp; Speed, James David Mervyn; Hofgaard, Annika; Collier, Laura S.; Garcia, Maitane I.; Harper, Karen; Heijmans, Monique; Hudson, James; Hülber, Karl; Iversen, Colleen M.; Jaroszynska, Francesca; Johnstone, Jill; Jorgensen, Rasmus H.; Kaarlejärvi, Elina; Klady, Rebecca; Kuleza, Sara; Kulonen, Aino; Lamarque, Laurent J.; Lantz, Trevor; Lavalle, Amanda; Little, Chelsea J.; Speed, James D. M.; Michelsen, Anders; Milbau, Ann; Nabe-Nielsen, Jacob; Nielsen, Sigrid S.; Ninot, Josep M.; Oberbauer, Steve; Olofsson, Johan; Onipchenko, Vladimir G.; Rumpf, Sabine B; Semenchuk, Philipp; Shetti, Rohan; Street, Lorna; Suding, Katharine; Tape, Ken; Trant, Andrew; Treier, Urs; Tremblay, Jean-Pierre; Tremblay, Maxime; Venn, Susanna; Weijers, Stef; Zamin, Tara; Boulanger-Lapointe, Noemie; Gould, William A.; Hik, Dave; Hofgaard, Annika; Jonsdottir, Inga S.; Jorgenson, Janet; Klein, Julia; Magnusson, Borgthor; Tweedie, Craig; Wookey, Philip A.; Bahn, Michael; Blonder, Benjamin; van Bodegom, Peter; Bond-Lamberty, Benjamin; Campetella, Giandiego; Cerabolini, Bruno E. L.; Chapin III, F. Stuart; Cornwell, Will; Craine, Joseph; Dainese, Matteo; de Vries, Franciska T.; Diaz, Sandra; Enquist, Brian J.; Green, Walton; Manning, Peter; Milla, Ruben; Niinemets, Ülo; Onoda, Yusuke; Ordonez, Jenny; Ozinga, Wim A.; Penuelas, Josep; Poorter, Hendrik; Poschlod, Peter; Reich, Peter; Sandel, Brody; Schamp, Brandon; Sheremetev, Serge; Weiher, Evan (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-26)
      The tundra is warming more rapidly than any other biome on Earth, and the potential ramifications are far-reaching because of global feedback effects between vegetation and climate. A better understanding of how environmental factors shape plant structure and function is crucial for predicting the consequences of environmental change for ecosystem functioning. Here we explore the biome-wide relationships ...

    • Site-specific responses of fungal and bacterial abundances to experimental warming in litter and soil across arctic and alpine tundra 

      Jeanbille, Mathilde; Clemmensen, Karina E; Juhanson, Jaanis; Michelsen, Anders; Cooper, Elisabeth J.; Henry, Greg H.R.; Hofgaard, Annika; Hollister, Robert D.; Jónsdóttir, Ingibjörg Svala; Klanderud, Kari; Tolvanen, Anne; Hallin, Sara (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-01)
      Vegetation change of the Arctic tundra due to global warming is a well-known process, but the implication for the belowground microbial communities, key in nutrient cycling and decomposition, is poorly understood. We characterized the fungal and bacterial abundances in litter and soil layers across 16 warming experimental sites at 12 circumpolar locations. We investigated the relationship between ...

    • Tundra Trait Team: A database of plant traits spanning the tundra biome 

      Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Thomas, Haydn J.D.; Alatalo, Juha M.; Alexander, Heather; Anadon-Rosell, Alba; Angers-Blondin, Sandra; Bai, Yang; Baruah, Gaurav; te Beest, Mariska; Berner, Logan; Björk, Robert G.; Blok, Daan; Bruelheide, Helge; Buchwal, Agata; Buras, Allan; Carbognani, Michele; Christie, Katherine; Collier, Laura Siegwart; Cooper, Elisabeth J.; Cornelissen, J. Hans C.; Dickinson, Katharine J.M.; Dullinger, Stefan; Elberling, Bo; Eskelinen, Anu; Forbes, Bruce C.; Frei, Esther R.; Iturrate-Garcia, Maitane; Good, Megan K.; Grau, Oriol; Green, Peter; Greve, Michelle; Grogan, Paul; Haider, Sylvia; Hájek, Tomáš; Hallinger, Martin; Happonen, Konsta; Harper, Karen A.; Heijmans, Monicque M.P.D.; Henry, Gregory H.R.; Hermanutz, Luise; Hewitt, Rebecca E.; Hollister, Robert D.; Hudson, James; Hülber, Karl; Iversen, Colleen M.; Jaroszynska, Francesca; Jiménez-Alfaro, Borja; Johnstone, Jill; Jørgensen, Rasmus Halfdan; Kaarlejärvi, Elina; Klady, Rebecca; Klimešová, Jitka; Korsten, Annika; Kuleza, Sara; Kulonen, Aino; Lamarque, Laurent J.; Lantz, Trevor; Lavalle, Amanda; Lembrechts, Jonas J.; Lévesque, Esther; Little, Chelsea J.; Luoto, Miska; Macek, Petr; Mack, Michelle C.; Mathakutha, Rabia; Michelsen, Anders; Milbau, Ann; Molau, Ulf; Morgan, John W.; Mörsdorf, Martin Alfons; Nabe-Nielsen, Jacob; Nielsen, Sigrid Schøler; Ninot, Josep M.; Oberbauer, Steven F.; Olofsson, Johan; Onipchenko, Vladimir G.; Petraglia, Alessandro; Pickering, Catherine; Prevéy, Janet S.; Rixen, Christian; Rumpf, Sabine Bettina; Schaepman-Strub, Gabriela; Semenchuk, Philipp; Shetti, Rohan; Soudzilovskaia, Nadejda A.; Spasojevic, Marko J.; Speed, James David Mervyn; Street, Lorna E.; Suding, Katharine; Tape, Ken D.; Tomaselli, Marcello; Trant, Andrew; Treier, Urs A.; Tremblay, Jean-Pierre; Tremblay, Maxime; Venn, Susanna; Virkkala, Anna-Maria; Vowles, Tage; Weijers, Stef; Wilmking, Martin; Wipf, Sonja; Zamin, Tara (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-22)
      <p><i>Motivation</i>: The Tundra Trait Team (TTT) database includes field‐based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical questions about plant strategy and trade‐offs, trait–environment relationships and environmental filtering, and trait variation across spatial scales, to validate satellite ...