Spatial Ecology and Remote Sensing

Solar radiation and its partitioning in vegetation canopies is an important factor influencing ecosystem processes such as decomposition, plant growth, species competition, and succession. On the other hand the land surface-atmosphere interaction, including fluxes of carbon, energy, and water, is highly depending on the vegetation type. Our aim is to develop, map and apply continuous vegetation variables (e.g. albedo, leaf area index, plant functional type fractional cover) and landscape proxies relevant to ecosystem and climate processes (e.g. vegetation successional development and biodiversity, energy partitioning, methane emissions), as eventual input to ecosystem and climate models. We use spectro-directional remote sensing data from leaf to ecosystem scale, integrating field observations (spectral reflectance, species composition, leaf area index) to satellite imagery. Our current focus lies on the Siberian Arctic tundra, including permafrost, and peatland ecosystems. To improve the quality of the satellite-inferred variables, we are contributing to international efforts on the definition and validation of reflectance and land surface albedo products.

• How does leaf functional diversity affect the light environment in forest canopies? An in-silico biodiversity experiment
  Plekhanova, Elena; Niklaus, Pascal A.; Gastellu-Etchegorry, Jean-Philippe; Schaepman-Strub, Gabriela
  Ecological Modelling,   DOI: 10.1016/j.ecolmodel.2020.109394 JAN 15 2021
• Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems
  Kropp, Heather; Loranty, Michael M.; Natali, Susan M.; Kholodov, Alexander L.; Rocha, Adrian, V; et al.
  Environmental Research Letters,  DOI: 10.1088/1748-9326/abc994  JAN 2021
• Metal accumulation and its effect on leaf herbivory in an allopolyploid species Arabidopsis kamchatica inherited from a diploid hyperaccumulator A. halleri
  Shimizu-Inatsugi, Rie; Milosavljevic, Silvija; Shimizu, Kentaro K.; Schaepman-Strub, Gabriela; Tanoi, Keitaro; Sato, Yasuhiro
  Plant Species Biology   DOI: 10.1111/1442-1984.12304  DEC 2020
• Plant trait response of tundra shrubs to permafrost thaw and nutrient addition
  Iturrate-Garcia, Maitane; Heijmans, Monique M. P. D.; Cornelissen, J. Hans C.; Schweingruber, Fritz H.; Niklaus, Pascal A.; et al.
  Biogeosciences   DOI: 10.5194/bg-17-4981-2020 OCT 18 2020
• The biogeochemical variability of Arctic thermokarst ponds is reflected by stochastic and niche-driven microbial community assembly processes
  Le Moigne, Alizee; Bartosiewicz, Maciej; Schaepman-Strub, Gabriela; Abiven, Samuel; Pernthaler, Jakob
  Environmental Microbiology  DOI: 10.1111/1462-2920.15260  NOV 2020
• Vegetation Trajectories and Shortwave Radiative Forcing Following Boreal Forest Disturbance in Eastern Siberia
  Stuenzi, S. M.; Schaepman-Strub, G.
  Journal Of Geophysical Research-biogeosciences  DOI: 10.1029/2019JG005395 JUN 2020
• Global plant trait relationships extend to the climatic extremes of the tundra biome
  Thomas, H. J. D.; Bjorkman, A. D.; Myers-Smith, I. H.; Elmendorf, S. C.; Kattge, J.; et al.
  Nature Communications   DOI: 10.1038/s41467-020-15014-4  MAR 12 2020
• Terrestrial land-cover type richness is positively linked to landscape-level functioning
  Oehri, Jacqueline; Schmid, Bernhard; Schaepman-Strub, Gabriela; Niklaus, Pascal A.
  Nature Communications 11(1), Article Number: 154, DOI: 10.1038/s41467-019-14002-7, JAN 9 2020
• Impacts of the 2014-2017 global bleaching event on a protected remote atoll in the Western Indian Ocean
  Cerutti, Julia M. B.; Burt, April J.; Haupt, Philip; Bunbury, Nancy; Mumby, Peter J.; et al.
  Coral Reefs 39(1): 15-26, DOI: 10.1007/s00338-019-01853-1, FEB 2020
• Extensive fires in southeastern Siberian permafrost linked to preceding Arctic Oscillation
  Kim, Jin-Soo; Kug, Jong-Seong; Jeong, Su-Jong; Park, Hotaek; Schaepman-Strub, Gabriela
  Science Advances 6(2), Article Number: eaax3308, DOI: 10.1126/sciadv.aax3308, JAN 2020
• Complexity revealed in the greening of the Arctic
  Myers-Smith, Isla H.; Kerby, Jeffrey T.; Phoenix, Gareth K.; Bjerke, Jarle W.; Epstein, Howard E.; et al.
  Nature Climate Change  10(2): 106-117, DOI: 10.1038/s41558-019-0688-1, FEB 2020
• An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications
  Fang, Hongliang; Baret, Frederic; Plummer, Stephen; Schaepman-Strub, Gabriela
  Reviews Of Geophysics,  DOI: 10.1029/2018RG000608
• In the land of giants: habitat use and selection of the Aldabra giant tortoise on Aldabra Atoll
  Walton, R; Baxter, R; Bunbury, N; Hansen, D; Fleischer-Dogley, F; Greenwood, S; Schaepman-Strub, G
  BIODIVERSITY AND CONSERVATION, 28 (12):3183-3198; 10.1007/s10531-019-01813-9 OCT 2019
• Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome
  Thomas, HJD; Myers-Smith, IH; Bjorkman, AD; Elmendorf, SC; Blok, D; Cornelissen, JHC; Forbes, BC; Hollister, RD; Normand, S; Prevey, JS; Rixen, C; Schaepman-Strub, G; Wilmking, M; Wipf, S; Cornwell, WK; Kattge, J; Goetz, SJ; Guay, KC; Alatalo, JM; Anadon-Rosell, A; Angers-Blondin, S; Berner, LT; Bjork, RG; Buchwal, A; Buras, A; Carbognani, M; Christie, K; Collier, LS; Cooper, EJ; Eskelinen, A; Frei, ER; Grau, O; Grogan, P; Hallinger, M; Heijmans, MMPD; Hermanutz, L; Hudson, JMG; Hulber, K; Iturrate-Garcia, M; Iversen, CM; Jaroszynska, F; Johnstone, JF; Kaarlejarvi, E; Kulonen, A; Lamarque, LJ; Levesque, E; Little, CJ; Michelsen, A; Milbau, A; Nabe-Nielsen, J; Nielsen, SS; Ninot, JM; Oberbauer, SF; Olofsson, J; Onipchenko, VG; Petraglia, A; Rumpf, SB; Semenchuk, PR; Soudzilovskaia, NA; Spasojevic, MJ; Speed, JDM; Tape, KD; te Beest, M; Tomaselli, M; Trant, A; Treier, UA; Venn, S; Vowles, T; Weijers, S; Zamin, T; Atkin, OK; Bahn, M; Blonder, B; Campetella, G; Cerabolini, BEL; Chapin, FS; Dainese, M; de Vries, FT; Diaz, S; Green, W; Jackson, RB; Manning, P; Niinemets, U; Ozinga, WA; Penuelas, J; Reich, PB; Schamp, B; Sheremetev, S; van Bodegom, PM
  GLOBAL ECOLOGY AND BIOGEOGRAPHY, 28 (2):78-95; 10.1111/geb.12783 JAN 2019

• Remote sensing of vegetation
• Energy fluxes in tundra ecosystems and peatlands
• Arctic climate change
• Radiation-vegetation interaction
• Land surface albedo
• Reflectance and albedo definitions

• Climate modelling
• Carbon cycle
• Vegetation successional development
• Peatland ecosystem processes