Canadian sites
Alexandra Fiord, Ellesmere Island
Name of site leader(s): Greg Henry University: University of British Columbia Site elevation: 0-100m Latitude (WGS84 decimal degrees): 78.8833° N Longitude (WGS84 decimal degrees): 75.8000° W Date site was established: 1987 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 90 OTCs 99 controls When were they established? 1993 Have they been closed? If so, when? No Is there grazing at your site? No Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover, Wind, global radiation etc. Current or past data collection: Phenology, Point framing, Above ground plant traits, Flower counts, Fertilizer plots, Snowmelt dates, Snow addition and removal,Sverdrup Pass, Ellesmere Island, Nunavut
Name of site leader(s): Esther Lévesque, Josef Svoboda (1986-1994) University: Université du Québec à Trois-Rivières (UQTR) Site elevation: 180 m Latitude (WGS84 decimal degrees): 79.14 Longitude (WGS84 decimal degrees): -79.7 Date site was established: 1990 Does your site have OTC's? No Number of plots at your site (include OTCs control plots, etc.) 13 in total along altitudinal gradients (300m to ca. 700m) on two substrates (granite and dolomite) D1-D6 and G1-G7 When were they established? 1990 Have they been closed? If so, when? Yes, 1994 Is there grazing at your site? Insects, Ungulates, Hares (Lagomorphs) Climate data: Air temperature >1m, Soil temperature, Precipitation Soil temperature year round (1986-1994) Current or past data collection: Individual plant phenology, Above ground plant traits, Flower counts (total), Flower counts (per stage) Main genera in plots: Papaver Citation: Lévesque, E., Henry, G.H.R., Svoboda, J., 1997. Phenological and growth responses of Papaver radicatum along altitudinal gradients in the Canadian High Arctic. Global Change Biology 3, 125–145.Bylot Island, Nunavut
Name of site leader(s): Esther Lévesque University: Université du Québec à Trois-Rivières Latitude (WGS84 decimal degrees): 73.3652 Longitude (WGS84 decimal degrees): -79.0153Nunatsiavut (Nain and Torr Bay)
Name of site leader(s): Laura Siegwart Collier, Luise Hermanutz University: Memorial University Latitude (WGS84 decimal degrees): 58.4774° N Longitude (WGS84 decimal degrees): 62.8295° W Date site was established:2009Nain
Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 18 When were they established? 2009 Have they been closed? If so, when? Yes, the subsite is closed Is there grazing at your site? 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, LichenTorr Bay
Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 60 When were they established? 2009 Have they been closed? If so, when? No but visited infrequently (once 3–5 years) Is there grazing at your site? Climate data: Air temperature >1m Soil temperature, PAR, Soil moisture probe Current or past data collection: Point framing, Flower counts (total), Fruit production Main genera in OTC plots: Salix, Betula, Vaccinium, Empetrum, Rhododendron, Carex, Eriophorum, Poa, Juncus, Bryophytes, Lichen, Oxytropis
Tundra Ecosystem Research Station, Daring Lake
Qikiqtaruk (
Greenlandic sites
Arctic Station, Disko, Greenland
Name of site leader(s): Anders Michelsen, Bo Elberling University: University of CopenhagenMesic-dry heath tundra
Site elevation: 95m Latitude (WGS84 decimal degrees): 69 16 N Longitude (WGS84 decimal degrees): 53 27 W Date site was established: 20Does your site have OTC's? Only snow fences Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 2012 Have they been closed? If so, when? still running Is there grazing at your site? 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/LichensWet sedge tundra
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? Only snow fences Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 2013 Have they been closed? If so, when? still running Is there grazing at your site? 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
Zackenberg, Greenland
Name of site leader(s): Anders Michelsen University: University of Copenhagen Site elevation: 35m Latitude (WGS84 decimal degrees): 74 30 N Longitude (WGS84 decimal degrees): 21 00 W Date site was established: 2004 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 20 When were they established? 2004 Have they been closed? If so, when? Is there grazing at your site? Yes Climate data: Air temperature, Soil temperature, Snow depth, Precipitation Current or past data collection: Point framing, Snowmelt dates, Soil moisture Main genera in OTC plots: Dryas, Salix, Cassiope, Vaccinium, Grasses, Mosses/LichensKobbefjord (Nuuk), Greenland
Name of site leader(s):''Kangerlussuaq, Greenland
Name of site leader(s): Eric Post University: University of California, Davis Site elevation: 200m Latitude (WGS84 decimal degrees): 67.017 Longitude (WGS84 decimal degrees): -50.717 Date site was established: 2003 Does your site have OTC's? Yes Subsites: KANGER.DOC, KANGER.DOPEY, KANGER.BASHFULEuropean sites
Auðkúluheiði, Iceland
Name of site leader(s): Ingibjörg S. Jónsdóttir University: University of Iceland and University Centre in Svalbard Site elevation: 450m Latitude (WGS84 decimal degrees): 65°12'0" N Longitude (WGS84 decimal degrees): 19°42'0" W Date site was established: 1996 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 30 When were they established? 1996 Have they been closed? If so, when? No Is there grazing at your site? 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
Landmannahellir/Löðmundarvatn at Fjallabak, Iceland
Billefjorden, Svalbard
Name of site leader(s): Petr Macek University: University of South Bohemia Site elevation: 70m Latitude (WGS84 decimal degrees): 78.5304 Longitude (WGS84 decimal degrees): 16.3070 Date site was established: 2014 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 30 When were they established? 2015 Have they been closed? If so, when? Is there grazing at your site? Yes Climate data: Air temperature, Soil temperature, Precipitation, leaf temperatures Current or past data collection: Plant cover (%), Above ground plant traits, Herbivory, Flower counts, Plot photos, Snowmelt dates, Soil moisture, Soil sampling Main genera in OTC plots: Dryas, Salix, Cassiope, Sedges, Grasses, Rushes, Saxifraga, Equisetum, Silene, Cerastium, Oxyria, Mosses/LichensAWS1, Svalbard
Name of site leader(s):Petr Macek University:University of South Bohemia Site elevation:50 Latitude (WGS84 decimal degrees):78.717 Longitude (WGS84 decimal degrees):16.445 Date site was established: 2014 Does your site have OTC's?OTCs, Herbivory exclosure, Seeding experiments Number of plots at your site (include OTCs control plots, etc.) 50 When were they established? 2015 Have they been closed? If so, when? 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, BryophytesAdventdalen, Svalbard
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: 2007 Does your site have OTC's? OTCs, Snow fences, Snow removal When were they established? 2007 Have they been closed? If so, when? Yes, 2015 Sub-sites: Heath, MeadowEndalen, Svalbard
Name of site leader(s): Ingibjorg Jonsdottir University: University of Iceland and University Centre in Svalbard Site elevation: 100 m Latitude (WGS84 decimal degrees): 78.187445 Longitude (WGS84 decimal degrees): 15.75835 Date site was established: 2002 Does your site have OTC's? Yes OTCs Sub-sites: Dryas Heath, Cassiope Low, Cassiope High, Fellfield, Snowbed Low, Snowbed HighFaroe Islands
Name of site leader(s): Magnus Gaard, Anna Maria Fosaa University: University of the Faroe Islands Site elevation: 600 m Latitude (WGS84 decimal degrees): 62.0667 Longitude (WGS84 decimal degrees): -6.95 Date site was established: 2001 Does your site have OTC's? YesKnutshø, Dovre, Norway
Name of site leader(s): Annika Hofgaard University: Norwegian Institute for Nature Research (NINA) Site elevation: 1050-1150m Latitude (WGS84 decimal degrees): 62 18' N Longitude (WGS84 decimal degrees): 09 37' E Date site was established: 1998 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 3 When were they established? 1998 Have they been closed? If so, when? Is there grazing at your site? Yes Climate data: No, two year of air and soil temperature data (ambient and OTC) at the start of site use Current or past data collection: Above ground plant traits, Herbivory, Plot photos, plant cover (%) Main genera in OTC plots: Salix, Betula, Vaccinium, Sedges, Grasses, Rushes, Equisetum, Mosses/Lichens, Empetrum, Astragalus and a number of other dwarf shrubs and herbsFinse, Norway
Name of site leader(s): Kari Klanderud University: Norwegian University of Life Sciences Site elevation: 1500 m asl Latitude (WGS84 decimal degrees): 60.6051° N Longitude (WGS84 decimal degrees): 7.5046° E Date site was established: June 2000 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 40 OTCs 40 controls When were they established? 2000 Have they been closed? If so, when? No Is there grazing at your site? 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/LichensKilpisjärvi Finland
Name of site leader(s): Anne Tolvanen University: Natural Resources Institute Finland Site elevation: 670 m a.s.l. Latitude (WGS84 decimal degrees): 69.4N Longitude (WGS84 decimal degrees): 20.490E Date site was established: 01.06.1994 Does your site have OTC's? Currently have Number of plots at your site (include OTCs control plots, etc.) 20 When were they established? 1994 Have they been closed? If so, when? running experiment Is there grazing at your site? Yes, factorial simulated herbivory treatment. Climate data: Air temperature, Soil temperature Current or past data collection: Point framing, Herbivory, Soil sampling, GHG fluxes, plant C/N concentrations, soil microbial communities Main genera in OTC plots: Salix, Betula, Vaccinium, Rushes, Mosses/LichensKilpisjärvi Finland II
Name of site leader(s): Friederike Gehrmann University: University of Helsinki Site elevation: 700m Latitude (WGS84 decimal degrees): 69.0443 Longitude (WGS84 decimal degrees): 20.8033 Date site was established: 2014 Does your site have OTC's? Never had Number of plots at your site (include OTCs control plots, etc.) 24 When were they established? 2014 Have they been closed? If so, when? No Is there grazing at your site? Yes Climate data: Air temperature, Soil temperature Current or past data collection: Phenology, Snowmelt dates, Soil moisture, ecophysiology Main genera in OTC plots: Salix, Betula, Cassiope, Vaccinium, Saxifraga, SileneLatnjajaure, Sweden
Name of site leader(s): Robert Bjork and Mats Bjorkman University: Göteborg University Site elevation: 981 m Latitude (WGS84 decimal degrees): 68.21N Longitude (WGS84 decimal degrees): 18.31E Date site was established: 1990 (First full ITEX year 1993) Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 50 plots (in 5 plant communities) When were they established? 1993, 1994, 1996 Have they been closed? If so, when? Is there grazing at your site? Yes Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover, Wind, global radiation etc. 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 levelPaddus, Abisko, Sweden
Name of site leader(s): Anders Michelsen University: University of Copenhagen(mesic tree-line heath)
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? Yes Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 1989 Have they been closed? If so, when? Is there grazing at your site? 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/LichensSubstrate (graminoid-rich heath)
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 Number of plots at your site (include OTCs control plots, etc.) 30 When were they established? 2012 Have they been closed? If so, when? Is there grazing at your site? 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/LichensMulte (wet heath)
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? Yes Number of plots at your site (include OTCs control plots, etc.) 30 When were they established? 1999 Have they been closed? If so, when? Is there grazing at your site? 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/LichensForest (understory in open birch forest)
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? Yes Number of plots at your site (include OTCs control plots, etc.) 10 When were they established? 2009 Have they been closed? If so, when? Is there grazing at your site? No Climate data: Air temperature, Soil temperature Current or past data collection: Point framing, Above ground plant traits, Below ground traits, Soil moisture, Soil sampling Main genera in OTC plots: Vaccinium, Grasses, Mosses/LichensAbisko
Arvidsjaur, Sweden - forest fire chronosequence
Name of site leader(s): Ellen Dorrepaal University: Umeå University Site elevation: 424-522 masl Latitude (WGS84 decimal degrees): N65°35'-N66°07' Longitude (WGS84 decimal degrees): E17°15'-E19°26' Date site was established: 2010 Does your site have OTC's? Currently have Number of plots at your site (include OTCs control plots, etc.) 80 When were they established? 2010 Have they been closed? If so, when? NA Is there grazing at your site? Yes Climate data: Air temperature, Soil temperature, Soil moisture Current or past data collection: Point framing, Above ground plant traits, Below ground traits, Soil moisture, Soil sampling, Transplant experiments, Soil nutrients; Nematodes; Microbial community (PLFA); (Transplanted) seedling survival; Litter decomposition; Experiment consists of OTC x moss removal x shrub removal (full factorial) across 10 sites with varying fire history in the northern boreal forest (Pine/Spruce/Birch), with one treatment replicate per site Main genera in OTC plots: Vaccinium, Mosses/Lichens, Empetrum
Foscagno Pass, Italy
Name of site leader(s): Nicoletta Cannone University: Università dell'Insubria Site elevation: 2250-2550m Latitude (WGS84 decimal degrees): 46.04 N Longitude (WGS84 decimal degrees): 10.02 Date site was established: 2007 Does your site have OTC's? Never had Number of plots at your site (include OTCs control plots, etc.) 100 When were they established? 2007 Have they been closed? If so, when? running experiment Is there grazing at your site? 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
Val Bercla, Switzerland
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? Currently have Number of plots at your site (include OTC's control plots, etc.) 9 When were they established? 1994 Have they been closed? If so, when? No OTCs from 1987-2008 Is there grazing at your site? Yes Does your site collect climate data? If yes, what type? No climate station directly at site but in the general area. Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover Current or past data collection at your site:Phenology, Above ground plant traits, Herbivory, Plot photos, Abundance estimates Main genera in OTC plots: Salix, Sedges, Grasses, Saxifraga, Silene, Mosses/LichensStillberg snow manipulation experiment, Switzerland
Name of site leader(s): Sonja Wipf and Christian Rixen University: WSL-Institute for Snow and Avalanche Research SLF Site elevation: 2220 m Latitude (WGS84 decimal degrees): 46.77224 Longitude (WGS84 decimal degrees): 9.86569 Date site was established: 2003 Does your site have OTC's? No Snow removal Number of plots at your site (include OTCs control plots, etc.) 21 When were they established? 2004 Have they been closed? If so, when? No but since 2006 maintained with minimal effort (snow manipulation done, not many measurements). Vegetation does not show much response. Is there grazing at your site? No Climate data: Air temperature >1m, Soil temperature, Snow depth, Snowmelt date, Precipitation, PAR, Wind speed, Wind direction, Solar radiation, Weather station <500m away Current or past data collection: Individual plant phenology, Plot photos, Plant abundance measure (other than point framing), Lichen cover, Bryophyte cover, Litter bags, Indidvidual growth Main genera in OTC plots: Vaccinium, Empetrum, Rhododendron, Carex, Loiseleuria, HelictotrichumJakobshorn, Davos, Switzerland
Name of site leader(s): Janet Prevey University: Pacific Northwest Research Station Site elevation: 2320 m Latitude (WGS84 decimal degrees): 46.77 Longitude (WGS84 decimal degrees): 9.86 Date site was established: 2014Pyrenees, Spain
Name of site leader(s): Estela Illa Bachs, Benjamin Komak, Olivier Argagnon and Ludovic Olicard University:Universitat de BarcelonaUlldeter
Site elevation: 2400 m Latitude (WGS84 decimal degrees): 42.41926 Longitude (WGS84 decimal degrees): 2.24756 Date site was established: 2018 Does your site have OTC's?Yes Number of plots at your site (include OTCs control plots, etc.) 8 When were they established?2019 Have they been closed? If so, when? Is there grazing at your site? 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, TrifoliumRatera
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? Yes Number of plots at your site (include OTCs control plots, etc.) 8 When were they established? 2017 Have they been closed? If so, when? No Is there grazing at your site? 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, NardusEnvalira
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.) 8 When were they established? 2017 Have they been closed? If so, when? No Is there grazing at your site? 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, SibbaldiaArrious
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? Yes Number of plots at your site (include OTCs control plots, etc.) 8 When were they established? 2017 Have they been closed? If so, when? No Is there grazing at your site? 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, TrifoliumCataperdís (Andorra), Spain
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? Yes Number of plots at your site (include OTCs control plots, etc.) 16 When were they established? 2019 Have they been closed? If so, when? No Is there grazing at your site? 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)Asian sites
Alpine tundra of the Changbai Mountains, Northeast China
American sites
Barrow/Utqiagvik Dry Site
Site elevation: 5m Latitude (WGS84 decimal degrees): 71.31502696 Longitude (WGS84 decimal degrees): -156.6010247 Date site was established: 1994 Does your site have OTC's? Yes OTCs Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 1994 Have they been closed? If so, when? No Is there grazing at your site? 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.), Transplant experiments, Multispectral data, 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 Fine-scale geospatial data (GPS points for each plot), Drone images, Multispectral data, Phenocams of site (GoPros etc.), Reciprocal transplant experiment, Dark diversity (species richness), Taxonomic classification of bryophytes Main genera in OTC plots: Salix, Cassiope, Carex, Eriophorum, Poa, Saxifraga, Cerastium, Stellaria, Papaver, Draba, Bryophytes, LichenBarrow/Utqiagvik Wet Site
Site elevation: 3 m Latitude (WGS84 decimal degrees): 71.31051842 Longitude (WGS84 decimal degrees): -156.5978987 Date site was established: 1995 Does your site have OTC's? Yes OTCs Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 1995 Have they been closed? If so, when? No Is there grazing at your site? 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.), Multispectral data, CO2 Flux, Plant abundance measure (other than point framing), Lichen cover, Bryophyte cover, Litter bags Fine-scale geospatial data (GPS points for each plot), Drone images, Multispectral data, Phenocams of site (GoPros etc.), Dark diversity (species richness), Taxonomic classification of bryophytes Main genera in OTC plots: Salix, Carex, Eriophorum, Poa, Saxifraga, Cerastium, Stellaria, Draba, Cardamine, BryophytesAtqasuk Dry Site
Site elevation: 22 m Latitude (WGS84 decimal degrees): 70.45373011 Longitude (WGS84 decimal degrees): -157.4073879 Date site was established: 1996 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 1996 Have they been closed? If so, when? Is there grazing at your site? 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.), Multispectral data, CO2 Flux, Plant abundance measure (other than point framing), Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Above ground biomass harvest, Litter bags Fine-scale geospatial data (GPS points for each plot), Drone images, Multispectral data, Phenocams of site (GoPros etc.), Dark diversity (species richness), Taxonomic classification of bryophytes Main genera in OTC plots: Salix, Cassiope, Vaccinium, Carex, Poa, Bryophytes, LichenAtqasuk Wet Site
Site elevation: 17 m Latitude (WGS84 decimal degrees): 70.45303348 Longitude (WGS84 decimal degrees): -157.4003018 Date site was established: 1996 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 48 When were they established? 1996 Have they been closed? If so, when? No Is there grazing at your site? 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.), Multispectral data, CO2 Flux, Lichen cover, Bryophyte cover, Litter bags Fine-scale geospatial data (GPS points for each plot), Drone images, Multispectral data, Phenocams of site (GoPros etc.), Dark diversity (species richness), Taxonomic classification of bryophytes Main genera in OTC plots: Salix, Betula, Carex, Eriophorum, Bryophytes, Lichen
Toolik and surrounding area (Shaver)
Toolik Lake, Alaska (Gough)
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? No Number of plots at your site (include OTCs control plots, etc.) hundreds When were they established? 1976-2006 Have they been closed? If so, when? Is there grazing at your site? 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. 5 contrasting veg typesAlaska Ecotypes/Alaska ''Eriophorum vaginatum'' Transplant Garden
Name of site leader(s): Ned Fetcher 2014–present, Jim Tang 2014-present, Michael Moody 2014–present University: Wilkes University, Marine Biological Laboratory, University of Texas - El Paso This is a reciprocal transplant experiment using three populations, Sagwon, Toolik, Lake, and Coldfoot. Each plot contains three tussocks of Eriophorum vaginatum that were transplanted in August 2014. At Sagwon and Toolik Lake, half of the plots had OTC's beginning in July 2015.Toolik Lake (Welker and Oberbauer)
Name of site leader(s): Jeffrey M Welker and Steven F Oberbauer University: Florida International UniversityToolik Moist
Site elevation: 720 m Latitude (WGS84 decimal degrees): 68.62 Longitude (WGS84 decimal degrees): -149.603 Date site was established: 1994 Does your site have OTC's? Yes OTCs, Snow fences When were they established? 1994Toolik Dry
Site elevation: 720 m Latitude (WGS84 decimal degrees): 68.62 Longitude (WGS84 decimal degrees): -149.598 Date site was established: 1994 Does your site have OTC's? Yes OTCs, Snow fences When were they established? 1994Toolik Snowfield
Latitude (WGS84 decimal degrees): 68.62 Longitude (WGS84 decimal degrees): -149.601 Does your site have OTC's? Yes OTCsImnaviat Creek, Alaska
Name of site leader(s): Jeremy May and Steven Oberbauer University: Florida International UniversityDry Heath
Site elevation: 927m asl Latitude (WGS84 decimal degrees): 68 37' N Longitude (WGS84 decimal degrees): 149 18' W Date site was established: 2016 Does your site have OTC's? Currently have Number of plots at your site (include OTCs control plots, etc.) 16 When were they established? June 2016 Have they been closed? If so, when? No Is there grazing at your site? No Climate data: No Current or past data collection: Point framing, Plot photos, NDVI Main genera in OTC plots: Dryas, Salix, Betula, Cassiope, Vaccinium, Sedges, Grasses, Saxifraga, Mosses/LichensWet Acidic
Site elevation: 927 m asl Latitude (WGS84 decimal degrees): 68 37' N Longitude (WGS84 decimal degrees): 149 18' W Date site was established: 2016 Does your site have OTC's? Currently have Number of plots at your site (include OTCs control plots, etc.) 16 When were they established? June 2016 Have they been closed? If so, when? No Is there grazing at your site? No Climate data: No Current or past data collection: Point framing, Plot photos, NDVI Main genera in OTC plots: Salix, Betula, Cassiope, Vaccinium, Sedges, Grasses, Saxifraga, Mosses/LichensAlaska Ice Cut
Name of site leader(s): Ellen Dorrepaal University: Umeå University Site elevation: 385 m asl Latitude (WGS84 decimal degrees): N69°048' Longitude (WGS84 decimal degrees): W148°836' Date site was established: 2014 Does your site have OTC's? Currently have Number of plots at your site (include OTCs control plots, etc.) 24 When were they established? 2014 (snow fences), 2016 (OTCs) Have they been closed? If so, when? NA Is there grazing at your site? No Climate data: Air temperature, Soil temperature, Snow depth, Thaw depth; Soil moisture Current or past data collection: Point framing, Above ground plant traits, Snow fences, Soil moisture, Drones, NDVI; Ecosystem Respiration; GPP Main genera in OTC plots: Salix, Betula, Vaccinium, Sedges, Mosses/Lichens, Ledum, RubusWhite Mountains
Name of site leader(s):Christopher Kopp University:University of British ColumbiaFellfield
Site elevation: 3100 m Latitude (WGS84 decimal degrees): 37.5 Longitude (WGS84 decimal degrees): -118.17 Date site was established: 2013 Does your site have OTC's? NoShrubland
Site elevation: 3700 m Latitude (WGS84 decimal degrees): 37.5 Longitude (WGS84 decimal degrees): -118.17 Date site was established: 2013 Does your site have OTC's? NoNiwot Ridge
Name of site leader(s):Sarah Elmendorf University: University of Colorado, BoulderDry Fellfield
Site elevation: 3535 m Latitude (WGS84 decimal degrees): 40.0548849 Longitude (WGS84 decimal degrees): -105.5880266 Does your site have OTC's? NoDry Meadow
Site elevation: 3529 m Latitude (WGS84 decimal degrees): 40.0554251 Longitude (WGS84 decimal degrees): -105.5888966 Does your site have OTC's? NoMoist Meadow
Site elevation: 3525 m Latitude (WGS84 decimal degrees): 40.05473969 Longitude (WGS84 decimal degrees): -105.5901614 Does your site have OTC's? NoMoist Shrub Tundra
Site elevation: 3528 m Latitude (WGS84 decimal degrees): 40.05619788 Longitude (WGS84 decimal degrees): -105.589602 Does your site have OTC's? YesSnowbed
Site elevation: 3537 m Latitude (WGS84 decimal degrees): 40.0569184 Longitude (WGS84 decimal degrees): -105.5908668 Does your site have OTC's? NoSnow Fence
Site elevation: 3524 m Latitude (WGS84 decimal degrees): 40.05659895 Longitude (WGS84 decimal degrees): -105.5895581 Does your site have OTC's? NoSouthern hemisphere sites
Tarn Flat
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, but it does have precipitation shields, nutrient additions, and long-term monitoring Number of plots at your site (include OTCs control plots, etc.) 36 When were they established? 2014 Have they been closed? If so, when? No, ongoing experiment Is there grazing at your site? No Climate data: 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/LichensBoulder Clay
Site elevation: 150 m Latitude (WGS84 decimal degrees): 74°44'S Longitude (WGS84 decimal degrees): 164°01'E Date site was established: 2014 Does your site have OTC's? No, but it does have precipitation shields, nutrient additions, and long-term monitoring Number of plots at your site (include OTCs control plots, etc.) 36 When were they established? 2014 Have they been closed? If so, when? No, ongoing experiment Is there grazing at your site? No Climate data: Air temperature, Soil temperature, Snow depth 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/LichensFalkland Islands
Name of site leader(s): Stef Bokhorst (previously R. Aerts, P. Convey and A. Huiskes (all in 2003)) University: VU Amsterdam Site elevation: 2 m Latitude (WGS84 decimal degrees): -51.76 Longitude (WGS84 decimal degrees): -59.03 Date site was established: 2003 Does your site have OTC's? Yes Number of plots at your site (include OTCs control plots, etc.) 24 When were they established? 2003 Have they been closed? If so, when? No Is there grazing at your site? Birds Climate data: No full monitoring only during 2003-2005 Current or past data collection: Point framing, Plot photos, Litter bags, Soil (chemical nutrient composition) Main genera in OTC plots: Empetrum, Ferns, Bryophytes, LichenAnchorage Island
Name of site leader(s): Stef Bokhorst (previously R. Aerts, P. Convey and A. Huiskes) University: VU Amsterdam Site elevation: 30 m Latitude (WGS84 decimal degrees): -67.61 Longitude (WGS84 decimal degrees): -68.22 Date site was established: 2004 Does your site have OTC's? Yes OTCs and Fertilizer (2015) Number of plots at your site (include OTCs control plots, etc.) 12 When were they established? 2004 Have they been closed? If so, when? No Is there grazing at your site? 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 roundReserva Ecológica Antisana
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? Yes Number of plots at your site (include OTCs control plots, etc.) 25 control plots, 25 OTC plots (2013), 7 OTC+phenology plots and 7 corresponding control plots (2017) When were they established? August 2013 Have they been closed? If so, when? No Is there grazing at your site? Yes Climate data: Air temperature, Soil temperature, This summer 2018 we will install a station with precipitation, radiation (PAR), soil water content Current or past data collection: Phenology, Above ground plant traits, Flower counts, Plot photos, Planned: soil sampling, herbivory Main genera in OTC plots: Páramo (tropical alpine vegetation) speciesSee also
*References
{{Reflist, 2 Climate change and the environment Arctic research Climatological research