SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Marien Janine) "

Sökning: WFRF:(Marien Janine)

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Monteux, Sylvain, et al. (författare)
  • Dispersal of bacteria and stimulation of permafrost decomposition by Collembola
  • 2022
  • Ingår i: Biogeosciences. - : Copernicus Publications. - 1726-4170 .- 1726-4189. ; 19:17, s. 4089-4105
  • Tidskriftsartikel (refereegranskat)abstract
    • Contrary to most soils, permafrost soils have the atypical feature of being almost entirely deprived of soil fauna. Abiotic constraints on the fate of permafrost carbon after thawing are increasingly understood, but biotic constraints remain scarcely investigated. Incubation studies, essential to estimate effects of permafrost thaw on carbon cycling, typically measure the consequences of permafrost thaw in isolation from the topsoil and thus do not account for the effects of altered biotic interactions because of e.g. colonization by soil fauna. Microarthropods facilitate the dispersal of microorganisms in soil, both on their cuticle (ectozoochory) and through their digestive tract (endozoochory), which may be particularly important in permafrost soils, considering that microbial community composition can strongly constrain permafrost biogeochemical processes.Here we tested how a model species of microarthropod (the Collembola Folsomia candida) affected aerobic CO2 production of permafrost soil over a 25 d incubation. By using Collembola stock cultures grown on permafrost soil or on an arctic topsoil, we aimed to assess the potential for endo- and ectozoochory of soil bacteria, while cultures grown on gypsum and sprayed with soil suspensions would allow the observation of only ectozoochory.The presence of Collembola introduced bacterial amplicon sequence variants (ASVs) absent in the no-Collembola control, regardless of their microbiome manipulation, when considering presence-absence metrics (unweighted UniFrac metrics), which resulted in increased species richness. However, these introduced ASVs did not induce changes in bacterial community composition as a whole (accounting for relative abundances, weighted UniFrac), which might only become detectable in the longer term.CO2 production was increased by 25.85 % in the presence of Collembola, about half of which could be attributed to Collembola respiration based on respiration rates measured in the absence of soil. We argue that the rest of the CO2 being respired can be considered a priming effect of the presence of Collembola, i.e. a stimulation of permafrost CO2 production in the presence of active microarthropod decomposers. Overall, our findings underline the importance of biotic interactions in permafrost biogeochemical processes and the need to explore the additive or interactive effects of other soil food web groups of which permafrost soils are deprived.
  •  
2.
  • Santangelo, James S., et al. (författare)
  • Global urban environmental change drives adaptation in white clover
  • 2022
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 375
  • Tidskriftsartikel (refereegranskat)abstract
    • Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural dines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Tack, Ayco J. M. (1)
Andrew, Nigel R. (1)
Alberti, Marina (1)
Pinho, Pedro (1)
Puentes, Adriana (1)
Laine, Anna Liisa (1)
visa fler...
Bonte, Dries (1)
del Val, Ek (1)
Branquinho, Cristina (1)
Peres-Neto, Pedro R. (1)
Granath, Gustaf (1)
Crawford, Andrew J. (1)
Zhao, Zhigang (1)
Krab, Eveline J (1)
Classen, Aimée T. (1)
Sanders, Nathan J. (1)
Ellers, Jacintha (1)
Raeymaekers, Joost A ... (1)
Brans, Kristien, I (1)
Gagnon, Edeline (1)
Scheepens, J.F. (1)
Parachnowitsch, Amy ... (1)
Santangelo, James S. (1)
Ness, Rob W. (1)
Angeoletto, Fabio (1)
Anstett, Daniel N. (1)
Anstett, Julia (1)
Baena-Diaz, Fernanda (1)
Carlen, Elizabeth J. (1)
Chaves, Jaime A. (1)
Comerford, Mattheau ... (1)
Dyson, Karen (1)
Falahati-Anbaran, Mo ... (1)
Fellowes, Mark D. E. (1)
Hodgins, Kathryn A. (1)
Iñiguez-Armijos, Car ... (1)
Lázaro-Lobo, Adrián (1)
Moles, Angela T. (1)
Munshi-South, Jason (1)
Paule, Juraj (1)
Porth, Ilga M. (1)
Santiago-Rosario, Lu ... (1)
Whitney, Kaitlin Sta ... (1)
Johnson, Marc T. J. (1)
Rivas-Torres, Gonzal ... (1)
Anderson, Jill T. (1)
Dominoni, Davide M. (1)
Szulkin, Marta (1)
DiLeo, Michelle F. (1)
Monteux, Sylvain (1)
visa färre...
Lärosäte
Stockholms universitet (2)
Sveriges Lantbruksuniversitet (2)
Umeå universitet (1)
Uppsala universitet (1)
Lunds universitet (1)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (2)
Lantbruksvetenskap (1)
År
2022 (2)

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy