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1995-20XX Barrow Atqasuk ITEX Community Metadata.doc

This file contains meta-data for files:

1995 Barrow Atqasuk ITEX Community v1.txt

1996 Barrow Atqasuk ITEX Community v1.txt

1997 Barrow Atqasuk ITEX Community v1.txt

2000 Barrow Atqasuk ITEX Community v1.txt

2007 Barrow Atqasuk ITEX Community v1.txt

2008 Barrow Atqasuk ITEX Community v1.txt

These files contain data representing the community composition and structure of ITEX plots at Barrow and Atqasuk in a text tab delimited format. The data presented were collected on the second summer of the experiment, in 2000 and then a third time during the summers of 2007 or 2008 for 48 plots (24 experiment open-top chamber plots and 24 control plots) at four sites (Atqasuk Wet Meadow, Atqasuk Dry Heath, Barrow Wet Meadow, and Barrow Dry Heath).


PI/DATA CONTACT= Webber, Patrick J (MSU 1994-2005)

Hollister, Robert D (GVSU 2005 onward)



PLATFORM/SITE = Barrow, Alaska (71o19'N 156o37'W);

Atqasuk, Alaska (70o29'N 157o25'W)

INSTRUMENT = Point Frame with 100 points

DATA VERSION = 1.0 (26 September 2008), preliminary quality check only


The data were gathered by placing a Point Frame over each plot and recording the top and bottom species at each location. The height of the top species was recorded relative to the ground at that location. The grids were spaced 7 cm apart and started at 3.5 cm from the edge of the square 70 cm frame. The top species was recorded at each location and the species at the ground surface was recorded if it was different from the top species. Occasionally it was difficult to distinguish which species was on the ground because there were several intertwined individuals, therefore preference was given to vascular plants, then lichens, and then mosses. Due to the limitations of field identification many species were lumped into larger taxa.


The taxa provide are relatively robust, however even with the species lumping presented there may have been some difficulty with bryophytes and lichens. Prior to 2007 the sampling only involved the top and bottom hits. In 2007 and 2008 all hits were recorded. The height of each hit was estimated for the first sampling (1995-1997).


A listing of the species associated with each taxa is listed below along with the source for the species nomenclature.

strTaxon Taxon Name Species Included

ALECOM Alectoria complex Alectoria nigricans (Ach.) Nyl.,

Alectoria ochroleuca (Hoffm.) A.Massal.,

Bryocaulon divergens (Ach.) Kärnefelt

ALOALP Alopecurus alpinus Alopecurus alpinus Sm.

ANEURA Aneura Aneura pinguis (L.) Dum.

ANTFRI Antennaria friesiana Antennaria friesiana (Trautv.) Ekman

ARCFUL Arctophila fulva Arctophila fulva (Trin.) Anderss.

ARCLAT Arctagrostis latifolia Arctagrostis latifolia (R.Br.) Griseb.

ARTBOR Artemisia borealis Artemisia borealis Pall.

AULACO Aulacomnium Aulacomnium palustre (Hedw.) Schwaegr.,

Aulacomnium turgidum (Wahlenb.) Schwaegr.

BARGRO Bare ground Bare ground

BARTRA Bartramia Bartramia ithyphylla Brid.

BETNAN Betula nana Betula nana L.

BRACHY Brachythecium Brachythecium sp.,

Brachythecium turgidum (Hartm.) Kindb.

BRYMNI Bryum Mnium complex Bryum cyclophyllum (Schwaegr.) Bush & Schimp in B.S.G.,

Bryum pseudotriquetrum (Hewd.) Gaertn. et al.,

Bryum sp.,

Bryum subneodamense Kindb.,

Bryum teres Lindb.,

Cinclidium arcticum Buch & Schimp. in B.S.G.,

Cinclidium latifolium Lindb.,

Cinclidium subrotundum Lindb.,

Plagiomnium ellipticum (Brid.) T.Kop.,

Pohlia andrewsii Shaw,

Pohlia cruda (Hedw.) Lindb.,

Pohlia crudoides (Sull. & Lesq.) Broth.,

Pohlia drummondii (C.Müll.) Andrews,

Pohlia nutans (Hedw.) Lindb.,

Pseudobryum cinclidioides (Hüb.) T.Kop.,

Rhizomnium andrewsianum (Steere) T.Kop.

BRYOER Bryoerythrophyllum Bryoerythrophyllum recurvirostre (Hedw.) Chen

CALLIE Calliergon Calliergon giganteum (Schimp.) Kindb.,

Calliergon richardsonii (Mitt.) Kindb. in Warnst.,

Calliergon trifarium (Web. & Mohr) Kindb.,

Orthothecium chryseum (Schwaegr. in Schultes) Schimp. in B.S.G.,

Pseudocalliergon turgescens (T.Jens.) Loeske,

Sarmenthypnum sarmentosum (Wahlenb.) Tuom. & T.Kop.

CAMPYL Campylium Campylium stellatum (Hedw.) C.Jens

CARAQU Carex aquatilis complex Carex aquatilis Wahlenb.,

Carex rariflora (Wahlenb.) J.E.Sm.,

Carex rotundata Wahlenb.,

Carex subspathacea Wormsk.,

Carex bigelowii Torr.

CARPRA Cardamine pratensis Cardamine pratensis L.

CASTET Cassiope tetragona Cassiope tetragona (L.) D.Don

CERAST Cerastium Cerastium beeringianum Cham. & Schlecht.,

Cerastium jenisejense Hult.

CETCUC Cetraria cucullata complex Asahinea chrysantha (Tuck.) Culb. & C.Culb.,

Flavocetraria cucullata (Bellardi) Kärnefelt & Thell,

Flavocetraria nivalis (L.) Kärnefelt & Thell

CETISL Cetraria islandica complex Cetraria islandica (L.) Ach.,

Cetraria kamczatica Savicz,

Cetraria laevigata Rass.,

Cetrariella cf. delisei (Bory ex Schaerer) Känefelt & Thell,

Masonhalea richardsonii (Hook.) Kärnefelt

CETUNI Cetraria unidentified Cetraria sp.

CHABAS Flux chamber base Flux chamber base

CHRTET Chrysosplenium tetrandrum Chrysosplenium tetrandrum (Lund) T.Fries

CLACOM Cladonia complex Cladina mitis (Sandst.) Hustich,

Cladina rangiferina (L.) Nyl. Syn.,

Cladonia amaurocraea (Floerke) Schaerer,

Cladonia cf. coccifera (L.) Hoffm.,

Cladonia cf. cornuta (L.) Hoffm.,

Cladonia cf. gracilis (L.) Willd.,

Cladonia cf. pleurota (Flörke) Schaerer,

Cladonia cf. squamosa Hoffm.,

Cladonia pyxidata (L.) Hoffm.,

Cladonia sp.,

Cladonia uncialis (L.) F.H.Wigg.

COCOFF Cochlearia officinalis Cochlearia officinalis L.

CONOST Conostomum Conostomum tetragonum (Hedw.) Lindb.

CRULIC Crustose lichen Caloplaca sp.,

Psoroma hypnorum (Vahl) Gray,

Rinodina sp.,

Unidentified crustose lichen

DACTYL Dactylina Dactylina arctica (Richardson) Nyl.

DIALAP Diapensia lapponica Diapensia lapponica L.

DICCOM Dicranum complex Dicranella crispa (Hedw.) Schimp.,

Dicranella sp.,

Dicranella varia (Hedw.) Schimp.,

Dicranum angustum Lindb.,

Dicranum cf. acutifolium (Lindb. & Arnell.) C.Jens. ex Weinm.,

Dicranum elongatum Schleich. ex Schwaegr.,

Dicranum majus Sm.,

Dicranum sp.,

Dicranum spadiceum Zett.,

Distichium capillaceum (Hedw.) Buch & Schimp. in B.S.G.,

Distichium inclinatum (Hedw.) Bruch & Schimp. in B.S.G.,

Ditrichum flexicaule (Schwaegr.) Hampe, Kiaeria glacialis (Berggr.) Hag.

DRALAC Draba lactea Draba lactea Adams

DRAMIC Draba micropetala Draba micropetala Hook.

DRECOM Drepanocladus complex Drepanocladus brevifolius (Lindb.) Warnst.,

Hypnum cupressiforme Hedw.,

Hypnum sp.,

Leptobryum pyriforme (Hedw.) Wils.,

Limprichtia revolvens (Sw.) Loeske,

Loeskypnum badium (Hartm.) Paul,

Sanionia uncinata (Hedw.) Loeske,

Warnstorfia exannulata (Schimp. in B.S.G.) Loeske

DUPFIS Dupontia fisheri Dupontia fisheri R.Br.

EQUIPM Equipment Various equipment

ERIANG Eriophorum angustifolium Eriophorum angustifolium Honck.

ERIRUS Eriophorum russeolum complex Eriophorum russeolum E. Fries,

Eriophorum scheuchzeri Hoppe

FISSID Fissidans Fissidens sp.

HIEALP Hierochloe alpina Hierochloe alpina (Sw.) Roem. & Schult.

HOLEXX Hole dug by an animal, dug by a researcher

HYLOCO Hylocomium Hylocomium splendens (Hewd.) Schimp. in B.S.G.

JUNBIG Juncus biglumis Juncus biglumis L.

LEALIV Leafy liverwort Anastrophyllum sp.,

Blepharostoma trichophyllum (L.) Dum.,

Cephaloziella sp.,

Chiloscyphus polyanthus (L.) Corda,

Diplophyllum sp.,

Lophozia sp.,

Tritomaria quinquedentata (Huds.) Buch,

Unidentified leafy liverwort

LEDPAL Ledum palustre Ledum palustre L.

LITTER Leaf Litter Litter

LUZARC Luzula arctica Luzula arctica Blytt

LUZCON Luzula confusa Luzula confusa Lindeb.

LUZWAH Luzula wahlenbergii Luzula wahlenbergii Rupr.

MEESIA Meesia Meesia triquetra (Richt.) Ångstr.,

Meesia uliginosa Hedw.

MINOBT Minuartia obtusiloba Minuartia obtusiloba (Rydb.) House

MISSIN Missing Data Missing Data

MUSHRO Mushroom Mushroom

NOSTOC Nostoc Nostoc sp.

ONCOPH Oncophorus Oncophorus virens (Hedw.) Brid.,

Oncophorus wahlenbergii Brid.

PAPHUL Papaver hultenii Papaver hultenii Knaben

PARMEL Parmelia complex Hypogymnia sp., Parmelia sp.

PEATXX Peat Peat

PEDKAN Pedicularis kanei Pedicularis kanei Durand

PEDSUD Pedicularis sudetica Pedicularis sudetica Willd.

PELCOM Peltigera complex Lobaria linita (Ach.) Rabenh.,

Nephroma sp.,

Peltigera aphthosa (L.) Willd.,

Peltigera canina (L.) Willd.,

Peltigera cf. leucophlebia (Nyl.) Gyeln.,

Peltigera cf. malacea (Ach.) Funck,

Peltigera cf. rufescens (Weis.) Humb.,

Peltigera cf. venosa (L.) Hoffm.,

Peltigera sp., Solorina crocea (L.) Ach.

PERUSA Pertusariaceae complex Ochrolechia frigida (Sw.) Lynge,

Ochrolechia sp.,

Pertusaria sp.

PETFRI Petasites frigidus Petasites frigidus (L.) Franch.

PLATAG Plant tag Plant marker

POACEA Poaceae complex Calamagrostis holmii Lange,

Hierochloe pauciflora R.Br.,

Poa arctica R.Br.,

Poa malacantha Kom.,

Poa sp.

POGONA Pogonatum Pogonatum dentatum (Brid.) Brid.

POITAG Point frame tag Point frame tag

POLBIS Polygonum bistorta Polygonum bistorta L.

POLCOM Polytrichum complex Polytrichastrum alpinum (Hedw.) G.L.Sm.,

Polytrichum commune Hedw.,

Polytrichum juniperinum Hedw.,

Polytrichum piliferum Hedw.,

Polytrichum strictum Brid.,

Timmia austriaca Hedw.

POOCAR Caribou poo Caribou feces

POOFOX Fox poo Fox feces

POOLEM Lemming poo Lemming feces

POOPTA Ptarmigan poo Ptarmigan feces

POTHYP Potentilla hyparctica Potentilla hyparctica Malte

PTILID Ptilidium Ptilidium ciliare (L.) Hampe

RACOMI Racomitrium Racomitrium canescens (Hedw.) Brid.,

Racomitrium lanuginosum (Hedw.) Brid.

RANNIV Ranunculus nivalis Ranunculus nivalis L.

RHYTID Rhytidium Rhytidium rugosum (Hedw.) Kindb.

SALPHL Salix phlebophylla Salix phlebophylla Anderss.

SALPOL Salix polaris Salix polaris Wahlenb.

SALPUL Salix pulchra Salix pulchra Cham.

SALROT Salix rotundifolia Salix rotundifolia Trautv.

SAXCER Saxifraga cernua Saxifraga cernua L.

SAXFLA Saxifraga flagellaris Saxifraga flagellaris Willd.

SAXFOL Saxifraga foliolosa Saxifraga foliolosa R.Br.

SAXHIE Saxifraga hieracifolia Saxifraga hieracifolia Waldst. & Kit.

SAXHIR Saxifraga hirculus Saxifraga hirculus L.

SAXPUN Saxifraga punctata Saxifraga punctata L.

SCAPAN Scapania Scapania paludicola Loeske et K.Müll.

SENATR Senecio atropurpureus Senecio atropurpureus (Ledeb.) Fedtsch.

SIPHUL Siphula Siphula ceratites (Wahlenb.) Fr.

SPHAER Sphaerophorus Sphaerophorus globosus (Hudson) Vainio

SPHAGN Sphagnum Sphagnum contortum Schultz,

Sphagnum girgensohnii Russ.,

Sphagnum sp.,

Sphagnum squarrosum Crome,

Sphagnum warnstorfii Russ.

STELLA Stellaria Stellaria edwardsii R.Br.,

Stellaria humifusa Rottb., Stellaria laeta Richards.

STEREO Stereocaulon Stereocaulon cf. alpinum Laurer ex Funck

THAMNO Thamnolia Thamnolia subuliformis (Ehrh.) Culb.,

Thamnolia vermicularis (Sw.) Ach. ex Schaerer

TOMENT Tomenthypnum Tomentypnum nitens (Hedw.) Loeske

TORTEL Tortella Tortella arctica (Arnell) Crundw. & Nyh.

TRISPI Trisetum spicatum Trisetum spicatum (L.) Richter

VACVIT Vaccinium vitis-idaea Vaccinium vitis-idaea L.

Vascular Plants

Hulten, E. 1968. Flora of Alaska and Neighboring Territories A Manual of the Vascular Plants. Stand University Press. Stanford, California pp. 1008.


Esslinger, T.L. and R.S. Egan. 1995. A sixth checklist of the lichen-forming, lichenicolus, and allied fungi of the continental United States and Canada. The Bryologist 98:467-549.


Stotler, R. and B. Crandall-Stotler. 1977. A checklist of the Liverworts and Hornworts of north America. The Bryologist 80(3):406-428.


Anderson, L.E., H.A Crum, and W.R. Buck. 1990. List of the Mosses of North America north of Mexico. The Bryologist 93(4):448-499.


Anderson, L.E. 1990. A checklist of Sphagnum in North America north of Mexico. The Bryologist 93(4):500-501.


The following prefixes have been used to designate data type.

str - indicates string (text) data

ysn - indicates yes or no data

dtm - indicates date time data

num - indicates numeric data

All string data within a column contain the same number of characters. The meaning of each character is defined at each position by stating the length of the identifier with a numeric and placing all the data codes used within parentheses directly after the numeric. For example:

strYear - year of recording

4(1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2007, 2008)

The above example describes a column that represents the year the data was recorded, it is string data that is always four characters in length and the only data codes used are 1994, 1995,

1996, 1997, 1998, 1999, 2000, 2001, 2007 and 2008.

strUTC - universal time constant (UTC)

year 4(1995-2000)

month 2(06-08)

day 2(01-31)

strIdLo - the location of the recording

site 1(B=Barrow Alaska, A=Atqasuk Alaska)

community 1(D=Dry Heath Tundra, W=Wet Meadow Tundra)

treatment 1(C=Control, E=Open-Top Chamber)

plot 2(01-24)

strSitCom - the site and community

site 1(B=Barrow Alaska, A=Atqasuk Alaska)

community 1(D=Dry Heath Tundra, W=Wet Meadow Tundra)

strTrea - treatment 1(C=Control, E=Open-Top Chamber)

strPlot - plot 2(01-24)

numYear - the year of the recording (1995-2000)

numJulian - julian day (1-366)

numMonth - month of the year (6-8)

numNS - location of point along the North/South axis

numEW - location of point along the East/West axis

strLev - level of the hit 1(1-7; most hits where only 1)

strType - type of hit 1(F=Feces, G=Ground, H=Human, L=Litter,

N=Non vascular, U=Unknown, V=Vascular)

strBFun - broad functional type 4(ALGA=Algae, BARE=Bare

Ground, BRYO=Bryophyte, CHAM=Flux Chamber Base, DSHR=Woody deciduous, ESHR=Woody evergreen, FORB=Forb, FUNG=Fungus, GRAM=Graminoid, LICH=Lichen, LITT=Leaf Litter, MISS=Missing Data, PLTA=Plant Tag, POOP=Feces, POTA=Point Frame Tag, PROB=Probe)

strNFun - narrow functional group 4(ACRO=Acrocarpous Moss,

ALGA=Algae, BARE=Bare Ground, CAGR=Caespitose Graminoid, CHAM=Flux Chamber Base, CRUS=Crustose Lichen, CUFO=Cushion Forb, DESH=Deciduous Shrub, ERFO=Errect Forb, EVSH=Evergreen Shrub, FOLI=Foliose Lichen, FRUT=Fruticose Lichen, FUNG=Fungus, LEAF=Leafy liverwort, LITT=Leaf Litter, MAFO=Mat Forb, MISS=Missing Data, PLEU=Pleurocarpous Moss, PLTA=Plant Tag, POOP=Feces, POTA=Point Frame Tag, PROB=Probe, ROFO=Rossette Forb, SIGR=Single Graminoid, SPHA=Sphagnum Moss, THAL=Thalloid Liverwort, UNBR=Unidentified Bryophyte, UNGR=Unidentified Graminoid, UNLI=Unidentified Lichen)

strTaxon - taxon 6(see listing above)

strStatus - status 1(L=Live, D=Dead, O=Other)

numHeight - height of the hit relative to the ground at that point (cm) (estimated in years 94-97)

numGround - distance of the ground from the level point frame (cm)

-999.9 - indicates missing data

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