Plant community composition in the Arctic System Science Program (ARCSS) grid at Utqiaġvik and Atqasuk, Alaska

• Main Authors: Robert Hollister, Katlyn Betway-May
• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2022
• Subjects: ARCSS; arctic ecology; vegetation species; vegetation cover; alpine/tundra; Alectoria complex; Algae species; Alopecurus alpinus; Andromeda polifolia; Aneura species; Arctophila fulva; Arctagrostis latifolia; Aulacomnium complex; Bartramia species; Betula nana; Brachythecium species; Bryum capillare; Bryum mnium complex; Calliergon species; Campylium species; Carex aquatilis complex; Carex bigelowii; Cardamine pratensis; Cassiope tetragona; Cerastium species; Cetraria cucullata complex; Cetraria islandica complex; Cetraria unidentified; Chrysosplenium tetrandrum; Cladonia complex; Cochlearia officinalis; Conostomum species; Crustose lichen; Dactylina complex; Diapensia lapponica; Dicranum complex; Draba lactea; Draba micropetala; Drepanocladus complex; Dupontia fisheri; Empetrum nigrum; Eriophorum angustifolium; Eriophorum russeolum; Eriophorum vaginatum; Fungi species; Hierochloe alpina; Hylocomium species; Juncus biglumis; Ledum palustre; Lloydia serotina; Luzula arctica; Luzula confusa; Luzula wahlenbergii; Meesia species; Melandrium apetalum; Oncophorus complex; Oxyria digyna; Parmelia complex; Pedicularis kanei; Pedicularis lapponica; Pedicularis sudetica; Peltigera complex; Pertusariaceae complex; Petasites frigidus; Poaceae complex; Polygonum bistorta; Polytrichum complex; Polygonum viviparum; Potentilla hyparctica; Psoroma hypnorum; Pyrola grandiflora; Racomitrium species; Ranunculus nivalis; Ranunculus pallasii; Ranunculus pygmaeus; Rhytidium species; Rubus chamaemorus; Saelania glaucescens; Salix polaris; Salix pulchra; Salix rotundifolia; Saxifraga cernua; Saxifraga foliolosa; Saxifraga hieracifolia; Saxifraga hirculus; Saxifraga punctata; Senecio atropurpureus; Sphaerophorus species; Sphagnum species; Stellaria species; Stereocaulon complex; Thamnolia complex; Tomenthypnum species; Trisetum spicatum; Vaccinium vitis-idaea; Alectoria; Arctic; Barrow; Carex aquatilis; Climate change; Eriophorum; Tundra; Alaska
• Online Access: https://search.dataone.org/view/urn:uuid:6952c092-4c1e-472e-a574-1b9bba0bcdbc

Arctic ecosystems are changing in response to arctic warming, which is proceeding more than twice as fast as the global average. The International Tundra Experiment (ITEX) was established in the early 1990s to understand the effects of warming and environmental variability on tundra vegetation properties and ecosystem function. The ITEX program has been extremely valuable for detection of changes in tundra plant and ecosystem responses to experimental warming and to background climate change across sites that span the major ecosystems of the Arctic. These files contain data representing the plant community composition and structure of Arctic System Science Program (ARCSS) grid plots at Utqiaġvik (formerly Barrow) and Atqasuk in a text tab delimited format. The 2010, 2013, 2016, and 2019 data were collected on all plots that were not under water: 98 plots at Utqiaġvik and 88 plots at Atqasuk. The 2012, 2014, 2015, 2017, and 2018 data were only collected on a subset of 30 plots at Utqiaġvik and 30 plots at Atqasuk, and the 2021 data were only collected on a subset of 30 plots at Utqiaġvik.