International Tundra Experiment
[1] Researchers measure plant responses to standardized, small-scale passive warming, snow manipulations, and nutrient additions.
No Climate data:Air temperature >1m, Soil temperature, PAR, Soil moisture probe Current or past data collection:Point framing, Flower counts (total), Plot photos, Fruit production Main genera in OTC plots:Betula, Vaccinium, Empetrum, Rhododendron, Carex, Bryophytes, Lichen Does your site have OTC's?
Yes Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover Current or past data collection: Point framing, Above ground plant traits, Below ground traits, Snow fences, Soil moisture, Drones, Soil sampling Main genera in OTC plots: Dryas, Salix, Betula, Cassiope, Vaccinium, Sedges, Grasses, Mosses/Lichens Site elevation: 85m Latitude (WGS84 decimal degrees): 69 26 N Longitude (WGS84 decimal degrees): 53 47 W Date site was established: 2013 Does your site have OTC's?
Yes Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover Current or past data collection: Point framing, Above ground plant traits, Below ground traits, Snow fences, Snowmelt dates, Soil moisture, Drones, Soil sampling Main genera in OTC plots: Salix, Sedges, Rushes, Equisetum, Mosses/Lichens Name of site leader(s): Niels Martin Schmidt University: Aarhus University Site elevation: App.
Yes Climate data: Air temperature, Soil temperature, Precipitation, Total radiation, PAR Current or past data collection: Phenology, Point framing, Above ground plant traits, Herbivory, Flower counts, Plot photos, Snowmelt dates, Soil moisture, Soil sampling Main genera in OTC plots: Dryas, Salix, Betula, Vaccinium, Sedges, Grasses, Rushes, Equisetum, Silene, Cerastium, Mosses/Lichens, Empetrum Name of site leader(s): Ólafur S. Andrésson 2017–present, Alejandro Salazar 2017-2019 University: University of Iceland, Faculty of Life and Environmental Sciences Site elevation: 600m Latitude (WGS84 decimal degrees): 64.0364 Longitude (WGS84 decimal degrees): 19.219017 Date site was established: 2017 Does your site have OTC's?
No Is there grazing at your site?Ungulates, Birds Climate data:Air temperature >1m, Soil temperature Current or past data collection: Individual plant phenology, Snapshot phenology, Above ground plant traits, Flower counts (total), Plot photos, Transplant experiments, Plant abundance measure (other than point framing), Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Litter bags Reciprocal transplant experiment, Dark diversity (species richness) Main genera in OTC plots:Dryas, Salix, Carex, Saxifraga, Silene, Cerastium, Oxyria, Draba, Equisetum, Bryophytes Name of site leader(s): Elisabeth J Cooper University: UiT The Arctic University of Norway Site elevation: 50 Latitude (WGS84 decimal degrees):78.16 Longitude (WGS84 decimal degrees): 16.1 Date site was established: 2003 Does your site have OTC's?
Yes Climate data: Air temperature, Precipitation, Done by climate station at Finse (1200 m asl) Current or past data collection: Above ground plant traits, Flower counts, Plot photos, Soil moisture, Soil sampling, Vegetation analyses by sub plot frequencies and % cover Main genera in OTC plots: Dryas, Sedges, Grasses, Silene, Mosses/Lichens Name of site leader(s): Anne Tolvanen University: Natural Resources Institute Finland Site elevation: 670 m a.s.l.
Current or past data collection: Phenology, Point framing, Above ground plant traits, Herbivory, Flower counts, Plot photos, Fertilizer plots, Snowmelt dates, Soil moisture, Soil sampling, soil fauna, soil parameters Main genera in OTC plots: Dryas, Salix, Betula, Cassiope, Vaccinium, Sedges, Grasses, Rushes, Saxifraga, Equisetum, Silene, Cerastium, Oxyria, Draba, Mosses/Lichens, many mosses and lichens determined to species of genera level Name of site leader(s): Anders Michelsen University: University of Copenhagen Site elevation: 550m Latitude (WGS84 decimal degrees): 68 19 N Longitude (WGS84 decimal degrees): 18 51 E Date site was established: 1989 Does your site have OTC's?
No Climate data: Air temperature, Soil temperature Current or past data collection: Phenology, Point framing, Above ground plant traits, Below ground traits, Herbivory, Flower counts, Fertilizer plots, Soil moisture, Soil sampling Main genera in OTC plots: Dryas, Salix, Betula, Cassiope, Vaccinium, Sedges, Grasses, Equisetum, Silene, Mosses/Lichens Site elevation: 560m Latitude (WGS84 decimal degrees): 68 19 N Longitude (WGS84 decimal degrees): 18 50 E Date site was established: 2012 Does your site have OTC's?
Yes Climate data: Air temperature, Soil temperature Current or past data collection: Phenology, Point framing, Above ground plant traits, Below ground traits, Fertilizer plots, Soil moisture, Soil sampling Main genera in OTC plots: Salix, Betula, Vaccinium, Sedges, Grasses, Rushes, Equisetum, Mosses/Lichens Site elevation: 430m Latitude (WGS84 decimal degrees): 68 20 N Longitude (WGS84 decimal degrees): 18 49 E Date site was established: 1999 Does your site have OTC's?
No Climate data: Air temperature, Soil temperature Current or past data collection: Phenology, Point framing, Above ground plant traits, Below ground traits, Fertilizer plots, Soil moisture, Soil sampling Main genera in OTC plots: Salix, Betula, Vaccinium, Sedges, Grasses, Rushes, Equisetum, Mosses/Lichens Site elevation: 430m Latitude (WGS84 decimal degrees): 68 20 N Longitude (WGS84 decimal degrees): 18 50 E Date site was established: 2009 Does your site have OTC's?
No Climate data: Air temperature, Soil temperature, Precipitation, Snow depth and snow melting Current or past data collection: Phenology, Above ground plant traits, Flower counts, Plot photos, Fertilizer plots, Snowmelt dates, GIS data, Vegetation data (composition and % coverage) Main genera in OTC plots: Salix, Vaccinium, Sedges, Grasses, Saxifraga, Silene, Cerastium, Oxyria, Mosses/Lichens Name of site leader(s): Nicoletta Cannone University: Università dell'Insubria Site elevation: 2700m Latitude (WGS84 decimal degrees): 46.31 N Longitude (WGS84 decimal degrees): 10.25 E Date site was established: 2014 Does your site have OTC's?
No Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Snow melting dates Current or past data collection: Phenology, Above ground plant traits, Flower counts, Plot photos, Snow fences, Fertilizer plots, Snowmelt dates, Soil moisture, GIS data, Soil sampling, Vegetation analyses (composition and % cover) Main genera in OTC plots: Salix, Sedges, Grasses, Mosses/Lichens Name of site leader(s): Christian Rixen University * WSL Institute for Snow and Avalanche Research SLF Site elevation 2500m Latitude (WGS84 decimal degrees) 46.47 Longitude (WGS84 decimal degrees) 9.58 Date site was established 1994 Does your site have OTC's?
No Climate data:Air temperature >1m, Snow depth, Precipitation, Wind speed, Solar radiation, Air temperature (near ground, ~10 cm), Snowmelt date Current or past data collection: Snapshot phenology, Point framing, Above ground plant traits, Plot photos, Plant tissue nutrient composition, Soil (physical texture), Soil (chemical nutrient composition), Species Abundance and Phenology Main genera in OTC plots: Salix, Poa, Agrostis, Gentiana, Nardus, Trifolium Site elevation: 2560 m Latitude (WGS84 decimal degrees): 42.6053 Longitude (WGS84 decimal degrees): 0.96021 Date site was established: 2016 Does your site have OTC's?
Ungulates Climate data: Air temperature (near ground, ~10 cm), Snowmelt date Current or past data collection: Point framing, Above ground plant traits, Plot photos, Plant tissue nutrient composition, Soil (physical texture), Soil (chemical nutrient composition) Species Abundance and Phenology Main genera in OTC plots: Salix, Carex, Poa, Bryophytes, Agrostis, Nardus Site elevation: 2500 m Latitude (WGS84 decimal degrees): 42.52372 Longitude (WGS84 decimal degrees): 1.73507 Date site was established: 2017 Does your site have OTC's?Yes Number of plots at your site (include OTCs control plots, etc.)
No Climate data: Air temperature (near ground, ~10 cm) Current or past data collection: Point framing, Above ground plant traits, Plot photos, Plant tissue nutrient composition, Soil (physical texture), Soil (chemical nutrient composition) Species Abundance and Phenology Main genera in OTC plots: Salix, Carex, Poa, Agrostis, Gentiana, Nardus, Sibbaldia Site elevation: 2370 m Latitude (WGS84 decimal degrees): 42.84143 Longitude (WGS84 decimal degrees): -0.33682 Date site was established: 2017 Does your site have OTC's?
Unknown Climate data: Air temperature (near ground, ~10 cm), Snowmelt date Current or past data collection: Point framing, Above ground plant traits, Plant tissue nutrient composition, Soil (physical texture), Soil (chemical nutrient composition) Species Abundance and Phenology Main genera in OTC plots: Salix, Festuca, Gentiana, Trifolium Name of site leader(s): Estela Illa Bachs, Benjamin Komak, Empar Carrillo Ortuño, Josep Maria Ninot Sugrañes, Alba Anadon Rosell, Aaron Pérez Haase, and Oriol Grau Fernández University: Universitat de Barcelona Site elevation: 2535 m Latitude (WGS84 decimal degrees): 42.61678 Longitude (WGS84 decimal degrees): 1.48186 Date site was established: 2017 Does your site have OTC's?
No Climate data: Air temperature (near ground, ~10 cm), Snowmelt date Current or past data collection: Point framing, Above ground plant traits, Plot photos, Below ground microbe surveys, Plant tissue nutrient composition, Litter bags, Soil (physical texture), Soil (chemical nutrient composition), Species Abundance and Phenology, OTCs, Snow removal Main genera in OTC plots: Salix, Poa, Bryophytes, Lichen, Sibbaldia, Leontodon (= Scorzoneroides) Name of site leader(s):Shengwei Zong, Hongshi He; 2015-ongoing, Zhengfang Wu; 2009-ongoing, Haibo Du; 2009-ongoing, and Xu Jiawei; 2008-ongoing University: Northeast Normal University Site elevation: 2300 m Latitude (WGS84 decimal degrees): 72 Longitude (WGS84 decimal degrees): 42 Date site was established: 2009 Does your site have OTC's?
Insects, Rodents, Birds Climate data: Air temperature 10 cm, Air temperature >1m, Soil temperature, Snowmelt date, Precipitation, PAR, Wind speed, Wind direction, Soil moisture probe, Active layer depth Current or past data collection: Plot level phenology, Individual plant phenology, Snapshot phenology, Point framing, Above ground plant traits, Below ground plant traits, Flower counts (total), Flower counts (per stage), Plot photos, Phenocams (GoPros etc.
Insects, Rodents, Birds Climate data: Air temperature 10 cm, Soil temperature, Snowmelt date, Soil moisture probe, Active layer depth Current or past data collection: Plot level phenology, Individual plant phenology, Snapshot phenology, Point framing, Above ground plant traits, Flower counts (total), Flower counts (per stage), Plot photos, Phenocams (GoPros etc.
Insects, Ungulates, Rodents, Birds Climate data: Air temperature 10 cm, Air temperature >1m, Soil temperature, Snowmelt date, Precipitation, PAR, Wind speed, Wind direction, Soil moisture probe, Active layer depth Current or past data collection:Plot level phenology, Individual plant phenology, Snapshot phenology, Point framing, Above ground plant traits, Flower counts (total), Flower counts (per stage), Plot photos, Phenocams (GoPros etc.
Insects, Ungulates, Rodents Climate data: Air temperature 10 cm, Soil temperature, Snowmelt date, Soil moisture probe, Active layer depth Air temperature (near ground, ~10 cm), Soil temperature, Snowmelt date, Soil moisture probe, Active layer depth Current or past data collection: Plot level phenology, Individual plant phenology, Snapshot phenology, Point framing, Above ground plant traits, Flower counts (total), Flower counts (per stage), Plot photos, Phenocams (GoPros etc.
Insects, Ungulates, Rodents, Birds Climate data:Air temperature >1m, Soil temperature, Snow depth, Snowmelt date, Precipitation, Cloud cover, PAR, Wind speed, Wind direction, Soil moisture probe, Soil moisture (% water by weight), Active layer depth, Solar radiation, UV Current or past data collection: Plot level phenology, Individual plant phenology, Point framing, Above ground plant traits, Below ground plant traits, Flower counts (total), Flower counts (per stage), Plot photos, Transplant experiments, Below ground microbe surveys, Multispectral data, Above ground invertebrates, Below ground invertebrates, CO2 Flux, Methane Flux, Plant abundance measure (other than point framing), Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Above ground biomass harvest, Below ground biomass harvest, Litter bags, Soil (physical texture), Soil (chemical nutrient composition), Lots of soil chemistry, plant allometry and vegetative and sexual demography Fine-scale geospatial data (GPS points for each plot), Multispectral data, Common garden experiment, Reciprocal transplant experiment Note: Many protocols established before ITEX; some ITEX protocols developed from ours Main genera in OTC plots: Dryas, Salix, Betula, Cassiope, Vaccinium, Empetrum, Rhododendron, Carex, Eriophorum, Festuca, Poa, Juncus, Saxifraga, Silene, Cerastium, Stellaria, Papaver, Oxyria, Draba, Cardamine, Equisetum, Lycopodium, Ferns, Bryophytes, Lichen, Astragalus, Oxytropis, Rubus, Above checked spp occur at >50% occurrence at at least one local site but none at every site Name of site leader(s): Laura Gough, Ed Rastetter, Donie Bret-Harte University: MBL Woods Hole, University of Alaska, Towson University Site elevation: 730 m Latitude (WGS84 decimal degrees): 68 deg 38 min N Longitude (WGS84 decimal degrees): 149 deg 34 min W Date site was established: 1976 Does your site have OTC's?
Yes Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover, PAR, radiation balance, uv Current or past data collection: Phenology, Point framing, Above ground plant traits, Below ground traits, Herbivory, Flower counts, Plot photos, Snow fences, Snow addition and removal, Fertilizer plots, Snowmelt dates, Soil moisture, GIS data, Soil sampling, NPP GPP, bulk CNP stocks and turnover Main genera in OTC plots: Salix, Betula, Cassiope, Vaccinium, Sedges, Grasses, Rushes, Mosses/Lichens, NO OTCs—plastic greenhouses.
No Climate data: Air temperature 10 cm, Air temperature >1m, Soil temperature, Snow depth, Snowmelt date, Precipitation, Cloud cover, PAR, Wind speed, Wind direction, Active layer depth, Solar radiation, Data available from Toolik Field Station website Current or past data collection: Individual plant phenology, Snapshot phenology, Above ground plant traits, Below ground plant traits, Flower counts (total), Plot photos, Phenocams (GoPros etc.
), Transplant experiments, CO2 Flux, Litter bags Fine-scale geospatial data (GPS points for each plot), Drone images, Phenocams of site (GoPros etc.
No Climate data: Air temperature >1m, Soil temperature, Snow depth, Snowmelt date, Precipitation, Wind speed, Wind direction, Solar radiation, Data is available from USDA SNOTEL website Current or past data collection: Individual plant phenology, Above ground plant traits, Below ground plant traits, Plot photos, Transplant experiments, Litter bags Fine-scale geospatial data (GPS points for each plot), Common garden experiment, Reciprocal transplant experiment Main genera in OTC plots: Salix, Betula, Vaccinium, Rhododendron, Carex, Eriophorum, Bryophytes, Lichen, Rubus Site elevation: 320 m Latitude (WGS84 decimal degrees): 67.2586 Longitude (WGS84 decimal degrees): -150.1698 Date site was established: 2014 Does your site have OTC's?
No Climate data: Air temperature, Soil temperature Current or past data collection: Point framing, Plot photos, Snow fences, Fertilizer plots, Snowmelt dates, Soil sampling, vegetation coverage and floristic composition Main genera in OTC plots: Mosses/Lichens Site elevation: 50m Latitude (WGS84 decimal degrees): 73°31'S Longitude (WGS84 decimal degrees): 167°25'E Date site was established: 2014 Does your site have OTC's?
No Climate data: Air temperature, Soil temperature Current or past data collection: Point framing, Plot photos, Snow fences, Fertilizer plots, Snowmelt dates, Soil sampling, vegetation coverage and floristic composition Main genera in OTC plots: Mosses/Lichens Site elevation: 20m Latitude (WGS84 decimal degrees): 74°59'S Longitude (WGS84 decimal degrees): 162°37'E Date site was established: 2014 Does your site have OTC's?
No Climate data:Air temperature >1m, Wind speed, Wind direction, Solar radiation, Soil temperature, full soil temp, PAR and rel hum during 2004-2007 Current or past data collection: Point framing, Plot photos, Below ground microbe surveys, Multispectral data, Below ground invertebrates, CO2 Flux, Lichen cover, Bryophyte cover, Soil (chemical nutrient composition) Taxonomic classification of lichens, Taxonomic classification of bryophytes Main genera in OTC plots: Bryophytes, Lichen Yes Yes, but infrequently (once 3–5 years) No Yes, year round Name of site leader(s): Priscilla Muriel, Francisco Cuesta University: Pontificia Universidad Católica del Ecuador Site elevation: 4580 m Latitude (WGS84 decimal degrees): 0°28'1.50"S Longitude (WGS84 decimal degrees): 78° 9'43.00"W Date site was established: August 2013 Does your site have OTC's?
