International Tundra Experiment


The International Tundra Experiment is a long-term international collaboration of researchers examining the responses of arctic and alpine plants and ecosystems to climate change. Researchers measure plant responses to standardized, small-scale passive warming, snow manipulations, and nutrient additions. Researchers use small open-top chambers to passively increase mean air temperature by 1-2 °C. The ITEX approach has been validated by tundra responses at the plot level. The network has published meta-analyses on plant phenology, growth, and reproduction, composition and abundance, and carbon flux. The ITEX network consists of more than 50 sites in polar and alpine locations around the world.

Canadian sites

Alexandra Fiord, Ellesmere Island

Name of site leader: Greg Henry
University: University of British Columbia
Site elevation: 0-100m
Latitude : 78.8833° N
Longitude : 75.8000° W
Date site was established: 1987
Does your site have OTC's? Yes
Number of plots at your site 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, GIS data, Drones, Phenocams, Transplant experiments, Plot photos, Soil moisture, Soil sampling, Succession studies
Main genera in OTC plots: Dryas, Salix, Cassiope, Vaccinium, Sedges, Grasses, Rushes, Saxifraga, Equisetum, Poppy, Oxyria, Draba, Mosses/Lichens, Fungi
Other nearby related study sites on Ellesmere: Sverdrup Pass, Princess Marie Bay, Hot Weather Creek,

Sverdrup Pass, Ellesmere Island, Nunavut

See also: Sverdrup Pass
Name of site leader: Esther Lévesque,  Josef Svoboda    
University: Université du Québec à Trois-Rivières  
Site elevation: 180 m
Latitude : 79.14  
Longitude :  -79.7  
Date site was established: 1990    
Does your site have OTC's?  No    
Number of plots at your site 13 in total along altitudinal gradients on two substrates    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    
Climate data: Air temperature >1m, Soil temperature, Precipitation, Soil temperature year-round    
Current or past data collection: Individual plant phenology, Above ground plant traits, Flower counts, Flower counts        
Main genera in plots: Papaver

Bylot Island, Nunavut

See also: Bylot Island
Name of site leader: Esther Lévesque  
University: Université du Québec à Trois-Rivières    
Latitude : 73.3652
Longitude : -79.0153

Nunatsiavut (Nain and Torr Bay)

See also: Nunatsiavut
Name of site leader: Laura Siegwart Collier, Luise Hermanutz
University: Memorial University
Latitude : 58.4774° N
Longitude : 62.8295° W
Date site was established: 2009

Nain

Does your site have OTC's?  Yes
Number of plots at your site 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, Plot photos, Fruit production
Main genera in OTC plots: Betula, Vaccinium, Empetrum, Rhododendron, Carex, Bryophytes, Lichen

Torr Bay

Does your site have OTC's? Yes
Number of plots at your site 60
When were they established? 2009
Have they been closed? If so, when? No but visited infrequently
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, Fruit production
Main genera in OTC plots: Salix, Betula, Vaccinium, Empetrum, Rhododendron, Carex, Eriophorum, Poa, Juncus, Bryophytes, Lichen, Oxytropis

https://www.enr.gov.nt.ca/en/services/research-and-data/tundra-ecosystem-research-station Tundra Ecosystem Research Station, Daring Lake

Name of site leader: Karin Clark
University: Government of the Northwest Territories
Latitude : 65 degrees 52 min N
Longitude : 111 degrees 32 min W
Date site was established: 1995
Does your site have OTC's? Currently have
Number of plots at your site 9
When were they established? Plots established 1995; OTCs in 2000
Have they been closed? If so, when? No
Is there grazing at your site? Yes
Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, radiation, wind speed and direction
Current or past data collection: Phenology, Point framing, Above ground plant traits, Flower counts, Snowmelt dates
Main genera in OTC plots: Salix, Betula, Vaccinium, Sedges, Saxifraga, Oxytropis

Qikiqtaruk (Herschel Island), Yukon

Name of site leader: Isla Myers-Smith
University: University of Edinburgh, Yukon Parks
Site elevation: 70m
Latitude : 69.6 N
Longitude : 138.9 W
Date site was established: 1999
Does your site have OTC's? Never had
Number of plots at your site 12
When were they established? 1999
Have they been closed? If so, when?  No
Is there grazing at your site? Yes
Climate data: Air temperature, Soil temperature, Snow depth, Precipitation
Current or past data collection: Phenology, Point framing, Above ground plant traits, Herbivory, Flower counts, Plot photos, Snowmelt dates, GIS data, Drones, Phenocams, Soil sampling, Shrub common garden
Main genera in OTC plots: Dryas, Salix, Betula, Sedges, Grasses, Mosses/Lichens

https://garibaldialpine.wixsite.com/garibaldialpine Garibaldi Park, BC, Canada

See also: Garibaldi Provincial Park
Name of site leader: Cassandra Elphinstone, Courtney Collins, & Nathalie Chardon ; Chelsea Little
University: University of British Columbia & Simon Fraser University
Site elevation: 1470m
Latitude : 49.927275
Longitude : -122.992919
Date site was established: 2022
Does your site have OTC's? Yes
Number of plots at your site 24
When were they established? 2022
Have they been closed? If so, when? No
Is there grazing at your site? Yes
Climate data: Plot level Air temperature, Soil temperature, radiation
Current or past data collection: Phenology, Point framing, Above ground plant traits, Flower counts, Phenocams, Plot photos, Soil moisture, Soil sampling
Main genera in OTC plots: Salix, Cassiope, Phyllodoce, Kalmia, Triantha, Pinguicula, Equisetum, Carex

Greenlandic sites

Disko, Greenland

Name of site leader:  Per Molgaard
University: University of Copenhagen
Site elevation: 10-100m
Latitude : 69.63N
Longitude : 42.17W
Date site was established: 1989
Does your site have OTC's? No
Number of plots at your site 4
When were they established? 1992
Have they been closed? If so, when? Yes 1994
Is there grazing at your site? No
Climate data: Air temperature, Soil temperature, Snow depth, Precipitation
Current or past data collection: Phenology, Point framing, Above ground plant traits, Herbivory, Flower counts
Main genera in OTC plots: Salix, Papaver, Caterpillars on willow

Arctic Station, Disko, Greenland

Name of site leader: Anders Michelsen, Bo Elberling
University: University of Copenhagen

Mesic-dry heath tundra

Site elevation: 95m
Latitude : 69 16 N
Longitude : 53 27 W
Date site was established: 20Does your site have OTC's? Only snow fences
Number of plots at your site 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/Lichens

Wet sedge tundra

Site elevation: 85m
Latitude : 69 26 N
Longitude : 53 47 W
Date site was established: 2013
Does your site have OTC's? Only snow fences
Number of plots at your site 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: Niels Martin Schmidt
University: Aarhus University
Site elevation: App. 55 m
Latitude : 74.47427
Longitude : -20.52895
Date site was established: 1996
Does your site have OTC's? Currently have
Number of plots at your site 20
When were they established? 2007
Have they been closed? If so, when? No
Is there grazing at your site? Yes
Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Cloud cover
Current or past data collection: Phenology, Point framing, Flower counts, Plot photos, Snowmelt dates, Soil moisture, Soil sampling
Main genera in OTC plots: Salix, Cassiope, Vaccinium, Grasses, Mosses/Lichens

Zackenberg, Greenland

See also: Zackenberg
Name of site leader: Anders Michelsen
University: University of Copenhagen
Site elevation: 35m
Latitude : 74 30 N
Longitude : 21 00 W
Date site was established: 2004
Does your site have OTC's? Yes
Number of plots at your site 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/Lichens

Kobbefjord (Nuuk), Greenland

See also: Kobbefjord
Name of site leader:
University:
Site elevation: 27 m
Latitude : 64.137147
Longitude : -51.379999
Date site was established: 2008
Does your site have OTC's? Yes
Number of plots at your site 30
When were they established? 2008
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
Current or past data collection: Phenology, Above ground plant traits, Flower counts, Plot photos, Snowmelt dates, Soil moisture, GIS data, Soil sampling
Main genera in OTC plots: Salix, Sedges, Grasses, Mosses/Lichens, Empetrum

Kangerlussuaq, Greenland

See also: Kangerlussuaq
Name of site leader: Eric Post
University: University of California, Davis
Site elevation: 200m
Latitude : 67.017
Longitude : -50.717
Date site was established: 2003
Does your site have OTC's? Yes
Subsites: KANGER.DOC, KANGER.DOPEY, KANGER.BASHFUL

Fennoscandian sites

Auðkúluheiði, Iceland

Name of site leader: Ingibjörg S. Jónsdóttir
University: University of Iceland & University Centre in Svalbard
Site elevation: 450m
Latitude : 65°12'0" N
Longitude : 19°42'0" W
Date site was established: 1996
Does your site have OTC's? Yes
Number of plots at your site 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

https://uni.hi.is/osa/ Landmannahellir/Löðmundarvatn at Fjallabak, Iceland

See also: Landmannahellir
Name of site leader: Ólafur S. Andrésson 2017–present; Alejandro Salazar 2017-2019
University: University of Iceland, Faculty of Life and Environmental Sciences
Site elevation: 600m  
Latitude : 64.0364
Longitude : 19.219017
Date site was established:  2017  
Does your site have OTC's? Yes
Number of plots at your site 16
When were they established? 2018
Have they been closed? If so, when? No
Is there grazing at your site? Ungulates, Birds
Climate data: Soil temperature, Snowmelt date,
Current or past data collection:  Soil moisture probe, Vegetation cover, microbial composition, soil respiration, N fixation, Plot photos, Below ground microbe surveys, Flux, Lichen cover, Bryophyte cover, Litter bags, Soil, N fixation, cyanobacteria cover on biocrust, soil respiration
Main genera in OTC plots: Salix, Empetrum, Carex, Bryophytes, Lichen, Liverwort biocrust is the primary research subject and main ground cover.

Billefjorden, Svalbard

Name of site leader: Petr Macek
University: University of South Bohemia
Site elevation: 70m
Latitude : 78.5304
Longitude :  16.3070
Date site was established: 2014
Does your site have OTC's? Yes
Number of plots at your site 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/Lichens

AWS1, Svalbard

Name of site leader:Petr Macek
University: University of South Bohemia
Site elevation:50
Latitude :78.717
Longitude :16.445
Date site was established: 2014
Does your site have OTC's?OTCs, Herbivory exclosure, Seeding experiments
Number of plots at your site  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, Plot photos, Transplant experiments, Plant abundance measure, Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Litter bags    Reciprocal transplant experiment, Dark diversity
Main genera in OTC plots:Dryas, Salix, Carex, Saxifraga, Silene, Cerastium, Oxyria, Draba, Equisetum, Bryophytes

Adventdalen Wet and Mesic, Svalbard

See also: Adventdalen
Name of site leader: Elisabeth J Cooper
University: UiT The Arctic University of Norway
Site elevation: 50
Latitude :78.16
Longitude : 16.1  
Date site was established: 2003  
Does your site have OTC's? OTCs, Goose grazing
When were they established? 2003
Have they been closed? If so, when? Yes, 2015

SAdvent, Svalbard

See also: Adventdalen
Name of site leader: Elisabeth J Cooper
University: UiT The Arctic University of Norway
Site elevation: 50
Latitude :78.16
Longitude : 16.1  
Date site was established: 2006
Does your site have OTC's? OTCs, Snow fences, Snow removal
When were they established? 2006
Have they been closed? If so, when? No

Endalen, Svalbard

Name of site leader: Ingibjorg Jonsdottir
University: University of Iceland & University Centre in Svalbard
Site elevation:   100  m
Latitude : 78.187445
Longitude : 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 High

Faroe Islands

Name of site leader: Magnus Gaard, Anna Maria Fosaa
University: University of the Faroe Islands
Site elevation: 600 m
Latitude : 62.0667
Longitude : -6.95
Date site was established:   2001
Does your site have OTC's?     Yes

Knutshø, Dovre, Norway

Name of site leader: Annika Hofgaard
University: Norwegian Institute for Nature Research
Site elevation: 1050-1150m
Latitude : 62 18' N
Longitude : 09 37' E
Date site was established: 1998
Does your site have OTC's? Yes
Number of plots at your site 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 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 herbs

Finse, Norway

See also: Finse
Name of site leader: Kari Klanderud
University: Norwegian University of Life Sciences
Site elevation: 1500 m asl
Latitude : 60.6051° N
Longitude : 7.5046° E
Date site was established: June 2000
Does your site have OTC's? Yes
Number of plots at your site 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
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

Kilpisjärvi, Finland

See also: Kilpisjärvi
Name of site leader: Anne Tolvanen
University: Natural Resources Institute Finland
Site elevation: 670 m a.s.l.
Latitude : 69.4N
Longitude : 20.490E
Date site was established: 01.06.1994
Does your site have OTC's? Currently have
Number of plots at your site 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/Lichens

Kilpisjärvi II, Finland

See also: Kilpisjärvi
Name of site leader: Friederike Gehrmann
University: University of Helsinki
Site elevation: 700m
Latitude : 69.0443
Longitude : 20.8033
Date site was established: 2014
Does your site have OTC's? Never had
Number of plots at your site 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, Silene

Latnjajaure, Sweden

Name of site leader: Robert Bjork and Mats Bjorkman
University: Göteborg University
Site elevation: 981 m
Latitude : 68.21N
Longitude : 18.31E
Date site was established: 1990
Does your site have OTC's? Yes
Number of plots at your site 50 plots
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 level

Paddus, Abisko, Sweden

See also: Abisko
Name of site leader: Anders Michelsen
University: University of Copenhagen

Mesic tree-line heath

Site elevation: 550m
Latitude : 68 19 N
Longitude : 18 51 E
Date site was established: 1989
Does your site have OTC's? Yes
Number of plots at your site 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/Lichens

Substrate (graminoid-rich heath)

Site elevation: 560m
Latitude : 68 19 N
Longitude : 18 50 E
Date site was established: 2012
Does your site have OTC's? Yes
Number of plots at your site 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/Lichens

Multe (wet heath)

Site elevation: 430m
Latitude : 68 20 N
Longitude : 18 49 E
Date site was established: 1999
Does your site have OTC's? Yes
Number of plots at your site 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/Lichens

Forest (understory in open birch forest)

Site elevation: 430m
Latitude : 68 20 N
Longitude : 18 50 E
Date site was established: 2009
Does your site have OTC's? Yes
Number of plots at your site 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/Lichens

Abisko Torneträsk treeline, Sweden

Name of site leader: Ellen Dorrepaal
University: Umeå University
Site elevation: 570-775 masl
Latitude : N68°18'-N68°31
Longitude : E18°12'-E18°54'
Date site was established: 2011
Does your site have OTC's? Currently have
Number of plots at your site 96
When were they established? 2011
Have they been closed? If so, when? NA
Is there grazing at your site? Yes
Climate data: Air temperature, Soil temperature, Snow depth, Precipitation, Soil moisture
Current or past data collection: Point framing, Above ground plant traits, Soil moisture, Transplant experiments, Nutrients; seedling survival; Experiment includes OTCs and moss removal treatments for vegetation dominated by three different moss species, across 8 sites along a precipitation gradient
Main genera in OTC plots: Salix, Betula, Vaccinium, Sedges, Grasses, Mosses/Lichens, Empetrum; In general very variable, since the experiment includes 8 sites and 3 dominant moss species per site

Arvidsjaur, Sweden - forest fire chronosequence

Name of site leader: Ellen Dorrepaal
University: Umeå University
Site elevation: 424-522 masl
Latitude : N65°35'-N66°07'
Longitude : E17°15'-E19°26'
Date site was established: 2010
Does your site have OTC's? Currently have
Number of plots at your site 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 ; seedling survival; Litter decomposition; Experiment consists of OTC x moss removal x shrub removal across 10 sites with varying fire history in the northern boreal forest, with one treatment replicate per site
Main genera in OTC plots: Vaccinium, Mosses/Lichens, Empetrum

Central European sites

Gavia Pass I, Italy

Name of site leader: Michele Carbognani
University: University of Parma
Site elevation: 2700 m
Latitude : 46.3404
Longitude : 10.4986
Date site was established: 2008
Does your site have OTC's? Currently have
Number of plots at your site 20
When were they established? 2008
Have they been closed? If so, when? No
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, Flower counts, Plot photos, Snowmelt dates, Soil moisture, litter decomposition
Main genera in OTC plots: Salix, Cerastium, Mosses/Lichens, Veronica, Cardamine, Poa, Leucanthemopsis

Gavia Pass II, Italy

Name of site leader: Alessandro Petraglia
University: University of Parma
Site elevation: 2700 m
Latitude : 46.3404
Longitude : 10.4986
Date site was established: 2012
Does your site have OTC's? Currently have
Number of plots at your site 18
When were they established? 2012
Have they been closed? If so, when? No
Is there grazing at your site? No
Climate data: Air temperature, Soil temperature, Precipitation, PAR
Current or past data collection: Phenology, Point framing, Flower counts, Snow addition and removal, Snowmelt dates, Soil moisture
Main genera in OTC plots: Salix, Cerastium, Mosses/Lichens, Veronica, Cardamine, Poa, Leucathemopsis

Foscagno Pass, Italy

Name of site leader: Nicoletta Cannone
University: Università dell'Insubria
Site elevation: 2250-2550m
Latitude : 46.04 N
Longitude : 10.02
Date site was established: 2007
Does your site have OTC's? Never had
Number of plots at your site 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
Main genera in OTC plots: Salix, Vaccinium, Sedges, Grasses, Saxifraga, Silene, Cerastium, Oxyria, Mosses/Lichens

Stelvio Pass, Italy

Name of site leader: Nicoletta Cannone
University: Università dell'Insubria
Site elevation: 2700m
Latitude : 46.31 N
Longitude : 10.25 E
Date site was established: 2014
Does your site have OTC's? Currently have
Number of plots at your site 120
When were they established? 2014
Have they been closed? If so, when? running experiment
Is there grazing at your site? 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
Main genera in OTC plots: Salix, Sedges, Grasses, Mosses/Lichens

Val Bercla, Switzerland

Name of site leader: Christian Rixen
University: WSL Institute for Snow and Avalanche Research SLF
Site elevation 2500m
Latitude 46.47
Longitude 9.58
Date site was established 1994
Does your site have OTC's? Currently have
Number of plots at your site 9
When were they established? 1994
Have they been closed? If so, when? No OTCs from 1987 to 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/Lichens

Stillberg snow manipulation experiment, Switzerland

Name of site leader: Sonja Wipf and Christian Rixen
University: WSL-Institute for Snow and Avalanche Research SLF
Site elevation: 2220 m
Latitude : 46.77224  
Longitude :  9.86569  
Date site was established: 2003  
Does your site have OTC's?  No  Snow removal          
Number of plots at your site  21
When were they established? 2004
Have they been closed? If so, when? No but since 2006 maintained with minimal effort. 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, Lichen cover, Bryophyte cover, Litter bags, Individual growth
Main genera in OTC plots: Vaccinium, Empetrum, Rhododendron, Carex, Loiseleuria, Helictotrichum

Jakobshorn, Davos, Switzerland

See also: Jakobshorn
Name of site leader: Janet Prevey
University: Pacific Northwest Research Station
Site elevation: 2320 m
Latitude : 46.77
Longitude : 9.86      
Date site was established: 2014

Pyrenees, Spain

Name of site leader: Estela Illa Bachs, Benjamin Komak, Olivier Argagnon and Ludovic Olicard
University: Universitat de Barcelona

Ulldeter

Site elevation: 2400 m
Latitude : 42.41926
Longitude : 2.24756  
Date site was established: 2018  
Does your site have OTC's?Yes    
Number of plots at your site 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, Snowmelt date
Current or past data collection:  Snapshot phenology, Point framing, Above ground plant traits, Plot photos, Plant tissue nutrient composition, Soil, Soil, Species Abundance and Phenology
Main genera in OTC plots: Salix, Poa, Agrostis, Gentiana, Nardus, Trifolium

Ratera

Site elevation: 2560 m
Latitude : 42.6053  
Longitude :  0.96021  
Date site was established:   2016
Does your site have OTC's? Yes
Number of plots at your site  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, Snowmelt date
Current or past data collection: Point framing, Above ground plant traits, Plot photos, Plant tissue nutrient composition, Soil, Soil    Species Abundance and Phenology
Main genera in OTC plots: Salix, Carex, Poa, Bryophytes, Agrostis, Nardus

Envalira

Site elevation: 2500 m
Latitude : 42.52372
Longitude : 1.73507
Date site was established: 2017  
Does your site have OTC's?Yes  
Number of plots at your site  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
Current or past data collection: Point framing, Above ground plant traits, Plot photos, Plant tissue nutrient composition, Soil, Soil    Species Abundance and Phenology
Main genera in OTC plots:  Salix, Carex, Poa, Agrostis, Gentiana, Nardus, Sibbaldia

Arrious

Site elevation: 2370 m
Latitude : 42.84143  
Longitude : -0.33682  
Date site was established: 2017  
Does your site have OTC's? Yes
Number of plots at your site  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, Snowmelt date
Current or past data collection: Point framing, Above ground plant traits, Plant tissue nutrient composition, Soil, Soil    Species Abundance and Phenology
Main genera in OTC plots: Salix, Festuca, Gentiana, Trifolium

Cataperdís (Andorra), Spain

Name of site leader: 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 :  42.61678
Longitude : 1.48186
Date site was established: 2017  
Does your site have OTC's? Yes
Number of plots at your site 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, 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, Soil, Species Abundance and Phenology, OTCs, Snow removal     
Main genera in OTC plots: Salix, Poa, Bryophytes, Lichen, Sibbaldia, Leontodon

Asian sites

http://cbs.nenu.edu.cn/ [Changbai Mountains, Northeast China]

See also: Changbai Mountains
Name of site leader: 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 : 72  
Longitude : 42  
Date site was established: 2009  
Does your site have OTC's? Yes OTCs and Fertilizer, Snow removal, Vegetation removal
Number of plots at your site 128
When were they established? 2011    
Have they been closed? If so, when? No
Is there grazing at your site? No
Climate data: Air temperature >1m, Soil temperature, Precipitation, Solar radiation, Wind speed, Wind direction, Soil moisture probe
Current or past data collection: Above ground plant traits, Plot photos, Plant abundance measure, Above ground biomass harvest, Below ground biomass harvest, Soil, Soil    Fine-scale geospatial data, Drone images, Phenocams of site, Reciprocal transplant experiment  
Main genera in OTC plots: Dryas, Salix, Vaccinium, Rhododendron, Carex, Festuca, Poa, Juncus, Oxyria, Lycopodium, Bryophytes, Lichen, Oxytropis

American sites

https://www.gvsu.edu/aep/ Barrow/Utqiagvik & Atqasuk

See also: Barrow, Atqasuk
Name of site leader: Christian Bay 1994–1995, Patrick Webber 1995–2007, Robert Hollister 2007-current
University: Grand Valley State University

Barrow/Utqiagvik Dry Site

Site elevation: 5m
Latitude : 71.31502696
Longitude : -156.6010247
Date site was established:  1994
Does your site have OTC's?    Yes    OTCs  
Number of plots at your site 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, Flower counts, Plot photos, Phenocams, Transplant experiments, Multispectral data, Flux, Methane Flux, Plant abundance measure, Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Above ground biomass harvest, Below ground biomass harvest, Litter bags    Fine-scale geospatial data, Drone images, Multispectral data, Phenocams of site, Reciprocal transplant experiment, Dark diversity, Taxonomic classification of bryophytes
Main genera in OTC plots: Salix, Cassiope, Carex, Eriophorum, Poa, Saxifraga, Cerastium, Stellaria, Papaver, Draba, Bryophytes, Lichen

Barrow/Utqiagvik Wet Site

Site elevation: 3 m
Latitude : 71.31051842  
Longitude :  -156.5978987
Date site was established:  1995
Does your site have OTC's? Yes    OTCs    
Number of plots at your site    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, Flower counts, Plot photos, Phenocams, Multispectral data, Flux, Plant abundance measure, Lichen cover, Bryophyte cover, Litter bags    Fine-scale geospatial data, Drone images, Multispectral data, Phenocams of site, Dark diversity, Taxonomic classification of bryophytes
Main genera in OTC plots: Salix, Carex, Eriophorum, Poa, Saxifraga, Cerastium, Stellaria, Draba, Cardamine, Bryophytes

Atqasuk Dry Site

Site elevation: 22 m
Latitude :  70.45373011  
Longitude :  -157.4073879
Date site was established:  1996  
Does your site have OTC's? Yes  
Number of plots at your site  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, Flower counts, Plot photos, Phenocams, Multispectral data, Flux, Plant abundance measure, Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Above ground biomass harvest, Litter bags    Fine-scale geospatial data, Drone images, Multispectral data, Phenocams of site, Dark diversity, Taxonomic classification of bryophytes
Main genera in OTC plots: Salix, Cassiope, Vaccinium, Carex, Poa, Bryophytes, Lichen

Atqasuk Wet Site

Site elevation: 17 m
Latitude : 70.45303348
Longitude :  -157.4003018
Date site was established:   1996  
Does your site have OTC's? Yes
Number of plots at your site  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, 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, Flower counts, Plot photos, Phenocams, Multispectral data, Flux, Lichen cover, Bryophyte cover, Litter bags    Fine-scale geospatial data, Drone images, Multispectral data, Phenocams of site, Dark diversity, Taxonomic classification of bryophytes
Main genera in OTC plots: Salix, Betula, Carex, Eriophorum, Bryophytes, Lichen

http://ecosystems.mbl.edu/arc/ Toolik and surrounding area (Shaver)

Name of site leader: GR Shaver
University:  Ecosystems Center, MBL
Subsites: Toolik Historic Site, Imnavait Sites, ARC LTER sites - many local sites and experiments, all within about 25 km of Toolik Lake.  We break these down by vegetation type, including Moist acidic tussock tundra, Moist nonacidic tussock tundra, moist nonacidic nontussock tundra, dry heath tundra, wet sedge tundra, and deciduous shrub tundra.  Much of the data on these sites is available at the ARC LTER web site at:  http://ecosystems.mbl.edu/arc/  
Date site was established: 1976  
Does your site have OTC's? Yes  OTCs and Fertilizer , Herbivory exclosure , Vegetation removal, Shade treatments
When were they established?  Dates above are dates of first expt, new experiments with same treatments established at various dates in the 1980s-2000s                                                                                    
Have they been closed? If so, when? No
Is there grazing at your site?  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, 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, Flower counts, Plot photos, Transplant experiments, Below ground microbe surveys, Multispectral data, Above ground invertebrates, Below ground invertebrates, Flux, Methane Flux, Plant abundance measure, Lichen cover, Bryophyte cover, Plant tissue nutrient composition, Above ground biomass harvest, Below ground biomass harvest, Litter bags, Soil, Soil, Lots of soil chemistry, plant allometry and vegetative and sexual demography    Fine-scale geospatial data, 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

Toolik Lake, Alaska (Gough)

Name of site leader: Laura Gough, Ed Rastetter, Donie Bret-Harte
University: MBL Woods Hole, University of Alaska, Towson University
Site elevation: 730 m
Latitude : 68 deg 38 min N
Longitude : 149 deg 34 min W
Date site was established: 1976
Does your site have OTC's? No
Number of plots at your site 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 types

Alaska Ecotypes/Alaska ''Eriophorum vaginatum'' Transplant Garden

Name of site leader: 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

Site elevation: 763 m
Latitude :  68.62886
Longitude : -149.576521
Date site was established: 2011, 2014
Does your site have OTC's? Currently have
Number of plots at your site 72
When were they established? 24 in 2011, 48 in 2014
Have they been closed? If so, when?
Is there grazing at your site? 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, Plot photos, Phenocams, Transplant experiments, Flux, Litter bags    Fine-scale geospatial data, Drone images, Phenocams of site, Common garden experiment, Reciprocal transplant experiment
Main genera in OTC plots:  Salix, Betula, Cassiope, Vaccinium, Empetrum, Rhododendron, Carex, Eriophorum, Bryophytes, Lichen, Rubus

Sagwon

Site elevation: 297m
Latitude : 69.4239
Longitude : -148.7008  
Date site was established: 2014
Does your site have OTC's? Currently have
Number of plots at your site 48
When were they established? 2015  
Have they been closed? If so, when?
Is there grazing at your site? 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, Common garden experiment, Reciprocal transplant experiment
Main genera in OTC plots: Salix, Betula, Vaccinium, Rhododendron, Carex, Eriophorum, Bryophytes, Lichen, Rubus

Coldfoot

Site elevation: 320 m
Latitude : 67.2586
Longitude : -150.1698
Date site was established: 2014
Does your site have OTC's? Never had
Number of plots at your site 24
When were they established? 2014
Have they been closed? If so, when? NA
Is there grazing at your site? No
Climate data: Air temperature >1m, Soil temperature, Snow depth, Snowmelt date, Precipitation, Wind speed, Wind direction, Solar radiation, Data are available from the USDA-SNOTEL website.
Current or past data collection: Individual plant phenology, Above ground plant traits, Plot photos, Litter bags    Fine-scale geospatial data, Common garden experiment, Reciprocal transplant experiment
Main genera in OTC plots: Salix, Betula, Vaccinium, Rhododendron, Carex, Eriophorum, Bryophytes, Lichen, Rubus

Toolik Lake (Welker and Oberbauer)

Name of site leader: Jeffrey M Welker and Steven F Oberbauer
University: Florida International University

Toolik Moist

Site elevation:  720 m
Latitude :   68.62
Longitude : -149.603  
Date site was established:  1994    
Does your site have OTC's?   Yes    OTCs, Snow fences  
When were they established? 1994

Toolik Dry

Site elevation:   720 m
Latitude :  68.62  
Longitude :  -149.598
Date site was established: 1994
Does your site have OTC's? Yes    OTCs, Snow fences  
When were they established? 1994

Toolik Snowfield

Latitude :  68.62
Longitude :   -149.601            
Does your site have OTC's? Yes  OTCs

Imnaviat Creek, Alaska

Name of site leader: Jeremy May and Steven Oberbauer
University: Florida International University

Dry Heath

Site elevation: 927m asl
Latitude : 68 37' N
Longitude : 149 18' W
Date site was established: 2016
Does your site have OTC's? Currently have
Number of plots at your site 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/Lichens

Wet Acidic

Site elevation: 927 m asl
Latitude : 68 37' N
Longitude : 149 18' W
Date site was established: 2016
Does your site have OTC's? Currently have
Number of plots at your site 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/Lichens

Alaska Ice Cut

Name of site leader: Ellen Dorrepaal
University: Umeå University
Site elevation: 385 m asl
Latitude : N69°048'
Longitude : W148°836'
Date site was established: 2014
Does your site have OTC's? Currently have
Number of plots at your site 24
When were they established? 2014, 2016
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,  Rubus

White Mountains

See also: White Mountains
Name of site leader:Christopher Kopp  
University: University of British Columbia

Fellfield

Site elevation:  3100 m 
Latitude :  37.5
Longitude : -118.17
Date site was established: 2013    
Does your site have OTC's? No

Shrubland

Site elevation: 3700 m
Latitude :    37.5
Longitude : -118.17
Date site was established:   2013    
Does your site have OTC's?  No

Niwot Ridge

See also: Niwot Ridge
Name of site leader:Sarah Elmendorf
University:   University of Colorado, Boulder

Dry Fellfield

Site elevation:   3535 m 
Latitude :  40.0548849
Longitude :  -105.5880266  
Does your site have OTC's?  No

Dry Meadow

Site elevation: 3529  m
Latitude : 40.0554251  
Longitude : -105.5888966  
Does your site have OTC's? No

Moist Meadow

Site elevation:  3525 m 
Latitude :  40.05473969
Longitude :  -105.5901614  
Does your site have OTC's? No

Moist Shrub Tundra

Site elevation: 3528 m
Latitude : 40.05619788
Longitude :  -105.589602   
Does your site have OTC's?     Yes

Snowbed

Site elevation: 3537 m
Latitude : 40.0569184
Longitude : -105.5908668
Does your site have OTC's?  No

Snow Fence

Site elevation: 3524 m  
Latitude : 40.05659895
Longitude : -105.5895581     
Does your site have OTC's?   No

Southern hemisphere sites

Antarctica

Name of site leader: Nicoletta Cannone
University: Università dell'Insubria

Edmonson Point

Site elevation: 5–35 m  
Latitude : 74°19'S
Longitude : 165°08'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 without manipulations
Number of plots at your site 88
When were they established? 2014
Have they been closed? If so, when?  No
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/Lichens

Finger Point

Site elevation: 50m
Latitude :  77°00'S
Longitude : 162°26'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 without manipulations
Number of plots at your site 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
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

Apostrophe Island

Site elevation: 50m
Latitude :  73°31'S
Longitude : 167°25'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 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
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        '''

Tarn Flat

Site elevation: 20m
Latitude :  74°59'S     
Longitude : 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 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/Lichens

Boulder Clay

Site elevation: 150 m                    
Latitude :  74°44'S
Longitude : 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 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/Lichens

Falkland Islands

See also: Falkland Islands
Name of site leader: Stef Bokhorst
University:  VU Amsterdam
Site elevation:  2 m
Latitude :  -51.76  
Longitude :  -59.03
Date site was established: 2003  
Does your site have OTC's? Yes  
Number of plots at your site  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
Main genera in OTC plots: Empetrum, Ferns, Bryophytes, Lichen

Anchorage Island

See also: Anchorage Island
Name of site leader: Stef Bokhorst
University:  VU Amsterdam  
Site elevation: 30 m
Latitude :  -67.61
Longitude :  -68.22  
Date site was established: 2004
Does your site have OTC's? Yes OTCs and Fertilizer
Number of plots at your site  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 relative humidity during 2004-2007
Current or past data collection: Point framing, Plot photos, Belowground microbial surveys, Multispectral data, Belowground invertebrates, Flux, Lichen cover, Bryophyte cover, Soil, Taxonomic classification of lichens, Taxonomic classification of bryophytes
Main genera in OTC plots:  Bryophytes, Lichen

Reserva Ecológica Antisana

See also: Antisana Ecological Reserve
Name of site leader: Priscilla Muriel, Francisco Cuesta
University: Pontificia Universidad Católica del Ecuador
Site elevation: 4580 m
Latitude : 0°28'1.50"S
Longitude : 78° 9'43.00"W
Date site was established: August 2013
Does your site have OTC's? Yes
Number of plots at your site 25 control plots, 25 OTC plots, 7 OTC+phenology plots and 7 corresponding control plots
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; Since 2018, precipitation, radiation, 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 species