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Conditions of Use

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Acceptable use. Use of the dataset will be restricted to academic, research, educational, government, recreational, or other not-for-profit professional purposes. The Data User is permitted to produce and distribute derived works from this dataset provided that they are released under the same license terms as those accompanying this Data Set. Any other uses for the Data Set or its derived products will require explicit permission from the dataset owner.
2 ) Redistribution. The data are provided for use by the Data User. The metadata and this license must accompany all copies made and be available to all users of this Data Set. The Data User will not redistribute the original Data Set beyond this collaboration sphere.
3 ) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier. For example:

Shaver, G. 1989. Above ground biomass in acidic tussock tundra experimental site, 1989, Arctic LTER, Toolik, Alaska. Arctic LTER, Marine Biological Lab, Woods Hole, Ma 02543. 1989gsttbm http://ecosystems.mbl.edu/arc/terrest/biomass/index.shtml 

4 ) Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example:

Data sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Grants #DEB-981022, 9211775, 8702328; #OPP-9911278, 9911681, 9732281, 9615411, 9615563, 9615942, 9615949, 9400722, 9415411, 9318529; #BSR 9019055, 8806635, 8507493.

5 ) Notification. The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
6 ) Collaboration. The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Dataset URLs:METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data, Dataset via LTER Data Poral
Dataset ID:1983_1996splt.07
Dataset Title:Vascular plant species list, by quadrat, for harvests of tussock tundra, wet sedge tundra, dry heath tundra, and a toposequence which also included "shrub/lupine," "riverside willow" and "footslope Equisetum" communities North Slope Alaska, Arctic LTER 1983-1996.
Investigator 1: 
First Name:Gus
Last Name:Shaver
Organization:Marine Biological Lab
Address line 2:7 MBL St.
Address line 3:
City:Woods Hole
State:MA
Zip Code:02543
Country:USA
Investigator 2: 
First Name:Laura
Last Name:Gough
Organization:Department of Biology
Address line 2:Box 19498
City:Arlington
State:Texas
Zip Code:76019
Country:USA
Investigator 3: 
First Name:Jim
Last Name:Laundre
Organization:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Investigator 4: 
First Name:Terry
Last Name:Chapin
Associate Investigators:
Keywords:species diversity, species richness, species lists, disturbance, populations
Abstract:Vascular plant species list, by quadrat, for harvests of tussock tundra, wet sedge tundra, dry heath tundra, and a toposequence which also included "shrub/lupine," "riverside willow" and "footslope Equisetum" communities. Includes results of long-term nutrient enrichment, increased temperature, and shade houses in selected tundra types.
For questions about the Metadata and data contact the Investigators.
For information about this web site contact:
Arctic LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7496
Email: arc_im@mbl.edu
Online URL: http://ecosystems.mbl.edu/ARC/
DATA FILE INFORMATION:
Data File URL http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.1419&urlTail=terrest/plantinfo/data/1983_1996splt.csv
Data File Name 1983_1996splt
Beginning Date 7/24/1983
End Date 7/30/1996
Number of Data Records 466
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes: Version 2: Added title and attribute information. JL 4Oct06
Version 3: Added LTERNET Data Access server proxy for Excel and comma delimited data files.
Version 4: Upadte LTERNET Data Access server proxy link for Excel and comma delimited data files. Changed from knb to das in url.
Version 5: Updated metadata form to newer version (without site sheet). CH 25Jan2013 Updated to newer metadata with site sheet. CH March 2013.
Version 7: Checked keywords against the LTER network preferred list and replaced non-preferred terms. Jim L 17Feb14
 
RESEARCH LOCATION:                                            
Location Name LTER Moist Acidic Tussock Tundra Sagavanirktok River LTER Moist NonAcidic Tussock Tundra LTER Heath Tundra LTER Wet Sedge Tundra Block 1 LTER Wet Sedge Tundra Block 2 Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One Select Site or enter New One  
Geographic Description Arctic LTER, Toolik Field Station, North Slope Alaska - Moist Acidic Tussock Tundra. Sagavanirktok River, northern foothills of the Brooks Range, Alaska - Tussock tundra and heath sites. Arctic LTER, Toolik Field Station, North Slope Alaska - Moist Non-acidic Tussock Tundra. Arctic LTER, Toolik Field Station, North Slope Alaska - Dry heath tundra. Arctic LTER, Toolik Field Station, North Slope Alaska - Wet Sedge Block 1 Arctic LTER, Toolik Field Station, North Slope Alaska - Wet Sedge block 2 Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description Enter Description  
Location Bounding Box                                            
West Bounding Coordinate                                            
East Bounding Coordinate                                            
North Bounding Coordinate                                            
South Bounding Coordinate                                            
OR if single point location                                            
Latitude 68.62405 68.7594 68.6342 68.64089 68.625388 68.647262 In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees  
Longitude -149.61058 -148.841 -149.64074 -149.58735 -149.602481 -149.576973 In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees In Decimal Degrees  
Elevation 750 457 750 724 717 719 In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters In Meters  
Link to Google Map View on Google Map View on Google Map View on Google Map View on Google Map View on Google Map View on Google Map                                
                                             
 
TAXONOMIC COVERAGE:
Organisms studied Anemone parviflora; Andromeda polifolia; Arctostaphylous alpina; Betula nana; Bistorta bistortoides; Bistorta viviparum; Boykinia richardsonii; Carex bigelowii; Carex chordorrhiza; Carex rotundata; Cassiope tetragona; Diapensia lapponica; Dryas integrifolia; Empetrum nigrum; Epilobium angustifolium; Eriophorum angustifolium; Eriophorum scheuchzeri; Eriophorum vaginatum; unknown graminoid; Hierochloe alpina; Ledum palustre; Loiseleuria procumbens; Luzula arctica; Oxytropis macrocarpa; Petasites frigidus; Pedicularis sp.; Potentilla fruticosa; Poa sp.; Ranunculus sp.; Rhododendron lapponicum; Rubus chamaemorus; Salix phlebophylla; Salix reticulata; Salix sp.; Stellaria sp.; Tofieldia sp.; Tricophorum caespitosum; Trisetum sp.; Vacciunium uliginosum; Vaccinium vitis-idaea
 
Methods:The data presented here was obtained by determining species
presence in a quadrat from data sheets completed during each harvest.
The productivity and biomass data from those harvests is presented in
other data files (83GSTTB7.XLS, 88GSSABM.XLS, 89GSTTBM.XLS,
94GSWSBM.XLS, 95GSTTBM.XLS, 96GSHTBM.XLS). 20 x 20 cm quadrats were
harvested for plant biomass at peak season (late July-early August) each
year listed. Five quadrats were harvested along a line transect within
each block, except as noted below. Species presence in a plot was
recorded at the time the quadrats were sorted to species, and is
indicated in this dataset for aboveground vascular material only.
The 1983, 1989, and 1995 tussock harvests were of 5 quadrats from
4 blocks; the tussock manipulations began in 1981. The 1988 harvest was
of 5 quadrats in the willow community and 4 quadrats in each of the
other communities, again from 4 blocks. The wet sedge harvest in 1994
was 4 quadrats from Toolik Lake (blocks 1 and 2; begun in 1989) and the
Sag River (block 3; begun in 1985). The heath harvest in 1996 was of 5
quadrats from 3 blocks at Toolik Lake; the heath manipulations began in
1989. For detailed description of nutrient enrichments, greenhouses,
and shade houses, see Chapin et al. 1995 and Shaver et al. in press.

Notes: If a block or quadrat was not sampled at a given harvest, the total
species count will be blank. A total species count of zero indicates no
vascular plants were found aboveground in the harvest.

Reference Citations: Chapin, F.S., III, G.R. Shaver, A.E. Giblin, K.J. Nadelhoffer, and J.A.
Laundre. 1995. Responses of arctic tundra to experimental and observed
changes in climate. Ecology 76:694-711.
Shaver, G.R., J.A. Laundre, A.E. Giblin, and K.J. Nadelhoffer. 1996.
Changes in live plant biomass, primary production, and species
composition along a riverside toposequence in arctic Alaska, U.S.A.
Arctic and Alpine Research 28:361-377.
Shaver, G.R., L.C. Johnson, D.H. Cades, G. Murray, J.A. Laundre, E.B.
Rastetter, K.J. Nadelhoffer, and A.E. Giblin. 1997. Biomass
accumulation and CO2 flux in three Alaskan wet sedge tundras: responses
to nutrients, temperature, and light. Ecology. in press

Data Table

Variable Name Variable Description Data Type Units DateTime Format Code Information Missing Value Code
Year year of harvest datetime   YYYY    
Site site of measurement Toolik or Sag River text        
Type community type tussock, wet sedge, heath, riverside willow, shrub/lupine, footslope Equisetum text        
Trt treatment: CT=control | N=nitrogen addition | P=phosphorus addition | NP=N and P addition | GH=greenhouse | GF=GH and NP | SH=shade house text        
Species species abbreviation ANPA Anemone parviflora ANPO Andromeda polifolia ARAL Arctostaphylous alpina BENA Betula nana BIBI Bistorta bistortoides BIVI Bistorta viviparum BORI Boykinia richardsonii CABI Carex bigelowii CACO Carex chordorrhiza CARO Carex rotundata CASP Carex sp. CATE Cassiope tetragona DISP Diapensia lapponica DRIN Dryas integrifolia DRSP Dryas sp. EMNI Empetrum nigrum EPAN Epilobium angustifolium EQSP Equisetum sp. ERAN Eriophorum angustifolium ERSC Eriophorum scheuchzeri ERVA Eriophorum vaginatum GRAM unknown graminoid GRASS unknown grass HIAL Hierochloe alpina LEPA Ledum palustre LOPR Loiseleuria procumbens LUAR Luzula arctica MISP Minuartia sp. OXMA Oxytropis macrocarpa PEFR Petasites frigidus PESP Pedicularis sp. POFR Potentilla fruticosa POSP Poa sp. RASP Ranunculus sp. RHLA Rhododendron lapponicum RUCH Rubus chamaemorus SAPH Salix phlebophylla SARE Salix reticulata SASP Salix sp. SEDGE unknown sedge STSP Stellaria sp. TOSP Tofieldia sp. TOTAL total number of spp. for that quadrat TRCA Tricophorum caespitosum TRSP Trisetum sp. UNK unknown VAUL Vacciunium uliginosum VAVI Vaccinium vitis-idaea text        
Growth Form D=deciduous shrub | E=evergreen shrub | F=forb | G=graminoid text        
1Q1 block 1, quadrat 1 where 1=present, blank=absent text        
1Q2 block 1, quadrat 2 where 1=present, blank=absent text        
1Q3 block 1, quadrat 3 where 1=present, blank=absent text        
1Q4 block 1, quadrat 4 where 1=present, blank=absent text        
1Q5 block 1, quadrat 5 where 1=present, blank=absent text        
2Q1 block 2, quadrat 1 where 1=present, blank=absent text        
2Q2 block 2, quadrat 2 where 1=present, blank=absent text        
2Q3 block 2, quadrat 3 where 1=present, blank=absent text        
2Q4 block 2, quadrat 4 where 1=present, blank=absent text        
2Q5 block 2, quadrat 5 where 1=present, blank=absent text        
3Q1 block 3, quadrat 1 where 1=present, blank=absent text        
3Q2 block 3, quadrat 2 where 1=present, blank=absent text        
3Q3 block 3, quadrat 3 where 1=present, blank=absent text        
3Q4 block 3, quadrat 4 where 1=present, blank=absent text        
3Q5 block 3, quadrat 5 where 1=present, blank=absent text        
4Q1 block 4, quadrat 1 where 1=present, blank=absent text        
4Q2 block 4, quadrat 2 where 1=present, blank=absent text        
4Q3 block 4, quadrat 3 where 1=present, blank=absent text        
4Q4 block 4, quadrat 4 where 1=present, blank=absent text        
4Q5 block 4, quadrat 5 where 1=present, blank=absent text        

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