Blar i forfatter Artikler, rapporter og annet (arktisk og marin biologi) "Tananaev, Nikita"

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    • Anaerobic oxidation of methane and associated microbiome in anoxic water of Northwestern Siberian lakes 

      Cabrol, Lea; Thalasso, Frederic; Gandois, Laure; Sepulveda-Jauregui, Armando; Martinez-Cruz, Karla; Teisserenc, Roman; Tananaev, Nikita; Tveit, Alexander Tøsdal; Svenning, Mette M.; Barret, Maialen (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-25)
      Arctic lakes emit methane (CH<sub>4</sub>) to the atmosphere. The magnitude of this flux could increase with permafrost thaw but might also be mitigated by microbial CH4 oxidation. Methane oxidation in oxic water has been extensively studied, while the contribution of anaerobic oxidation of methane (AOM) to CH<sub>4</sub> mitigation is not fully understood. We have investigated four Northern Siberian ...

    • Biogeography of microbial communities in high-latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes 

      Seppey, Victor William Christophe; Cabrol, Léa; Thalasso, Frederic; Gandois, Laure; Lavergne, Céline; Martinez-Cruz, Karla; Sepulveda-Jauregui, Armando; Aguilar-Muñoz, Polette; Astorga-España, María Soledad; Chamy, Rolando; Dellagnezze, Bruna Martins; Etchebehere, Claudia; Fochesatto, Gilberto J.; Gerardo-Nieto, Oscar; Mansilla, Andrés; Murray, Alison; Sweetlove, Maxime; Tananaev, Nikita; Teisserenc, Roman; Tveit, Alexander Tøsdal; Van de Putte, Anton; Svenning, Mette Marianne; Barret, Maialen (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-27)
      Methane-cycling is becoming more important in high-latitude ecosystems as global warming makes permafrost organic carbon increasingly available. We explored 387 samples from three high-latitudes regions (Siberia, Alaska and Patagonia) focusing on mineral/organic soils (wetlands, peatlands forest), lake/pond sediment and water. Physicochemical, climatic and geographic variables were integrated ...

    • Circum-Arctic distribution of chemical anti-herbivore compounds suggests biome-wide trade-off in defence strategies in Arctic shrubs 

      Lindén, Elin; te Beest, Mariska; Aubreu, Ilka; Moritz, Thomas; Sundqvist, Maja K.; Barrio, Isabel C.; Boike, Julia; Bryant, John P.; Bråthen, Kari Anne; Buchwal, Agata; Bueno, C. Guillermo; Currier, Alain; Egelkraut, Dagmar Dorothea; Forbes, Bruce C.; Hallinger, Martin; Heijmans, Monique; Hermanutz, Luise; Hik, David S.; Hofgaard, Annika; Holmgren, Milena; Huebner, Diane C.; Høye, Toke T.; Jónsdóttir, Ingibjörg S.; Kaarlejärvi, Elina; Kissler, Emilie; Kumpula, Timo; Limpens, Juul; Myers-Smith, Isla H.; Normand, Signe; Post, Eric; Rocha, Adrian V.; Schmidt, Niels Martin; Skarin, Anna; Soininen, Eeva M; Sokolov, Aleksandr; Sokolova, Natalia; Speed, James David Mervyn; Street, Lorna E.; Tananaev, Nikita; Tremblay, Jean-Pierre; Urbanowicz, Christine; Watts, David A.; Zimmermann, Heike H.; Olofsson, Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-30)
      Spatial variation in plant chemical defence towards herbivores can help us understand variation in herbivore top–down control of shrubs in the Arctic and possibly also shrub responses to global warming. Less defended, non-resinous shrubs could be more influenced by herbivores than more defended, resinous shrubs. However, sparse field measurements limit our current understanding of how much of the ...

    • A combined microbial and biogeochemical dataset from high-latitude ecosystems with respect to methane cycle 

      Barret, Maialen; Gandois, Laure; Thalasso, Frederic; Martinez-Cruz, Karla; Sepulveda-Jauregui, Armando; Lavergne, Céline; Teisserenc, Roman; Aguilar-Muñoz, Polette; Gerardo-Nieto, Oscar; Etchebehere, Claudia; Dellagnezze, Bruna Martins; Winkler, Patricia; Fochesatto, Gilberto J.; Tananaev, Nikita; Svenning, Mette Marianne; Seppey, Victor William Christophe; Tveit, Alexander Tøsdal; Chamy, Rolando; Astorga-España, María Soledad; Mansilla, Andrés; Van De Putte, Anton; Sweetlove, Maxime; Murray, Alison E.; Cabrol, Léa (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-04)
      High latitudes are experiencing intense ecosystem changes with climate warming. The underlying methane (CH4) cycling dynamics remain unresolved, despite its crucial climatic feedback. Atmospheric CH<sub>4</sub> emissions are heterogeneous, resulting from local geochemical drivers, global climatic factors, and microbial production/consumption balance. Holistic studies are mandatory to capture ...