Arctic LTER

Weather at Toolik

Arctic LTER Database

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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.

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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 ID:	1989plantspecies.05
Dataset Title:	Vascular plant species list, Skip Walker's Toolik Lake permanent plot species data, Toolik Lake Field Station, North Slope, AK Arctic LTER 1989.
Investigator 1:
First Name:	Donald
Last Name:	Walker
Organization:	Institute of Arctic Biology
Address line 2:	University of Alaska Fairbanks
Address line 3:
City:	Fairbanks
State:	AK
Zip Code:	99775
Country:
Investigator 2:
First Name:	N.C.
Last Name:	Barry
Organization:
Address line 2:
City:
State:
Zip Code:
Associate Investigators:
Keywords:	species diversity, species richness, species list, populations
Abstract:	Vascular plant species list, Skip Walker's Toolik Lake permanent plot species data
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.1420&urlTail=terrest/plantinfo/data/1989plantspecies.csv
Data File Name	1989plantspecies
Beginning Date	8/23/1989
End Date	9/1/1989
Number of Data Records	765
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Version 2: Added title and atrribute information. 4Oct06 JL.
	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). Fixed discrepency with header variable names. CH 25Jan2013 Updated to newer metadata with site sheet. CH March 2013.

RESEARCH LOCATION:

Location Name

Skip Walker's Toolik Plot

Select Site or enter New One

Geographic Description

Skip Walker's Toolik Lake permanent plot near Toolik Lake research site, located in the northern Arctic Foothills of the Brooks Range, Alaska (68 deg. 37' N, 149 deg. 37' W). See http://arcss.colorado.edu/data/arcss.html for map of plots

Enter Description

Location Bounding Box

West Bounding Coordinate

East Bounding Coordinate

North Bounding Coordinate

South Bounding Coordinate

OR if single point location

Latitude

68.626

In Decimal Degrees

Longitude

-149.616

In Decimal Degrees

Elevation

In Meters

Link to Google Map

View on Google Map


TAXONOMIC COVERAGE:
Organisms studied

Methods:	This species data is extracted from a report on a summary of environmental, soil, and vegetation information collected from 81 study plots at the Toolik Lake research site, located in the northern Arctic Foothills of the Brooks Range, Alaska (68 deg. 37' N, 149 deg. 32' W). It brings together for easy reference all the available information collected from the plots. This information is being used for the classification, mapping and analysis of the geobotanical factors in the Toolik Lake and Imnavait Creek region. A separate equivalent data report is available for 71 permanent plots at Imnavait Creek (Walker et al., 1987). Methods and data summaries Reconnaissance survey, sampling dates, and plot locations A reconnaissance survey was conducted in August 1988 to define the primary vegetation types in the Toolik Lake area. Unknown plants were collected and many informal partial releve were sampled with reference to spectral signatures on a 1:50,000-scale color-infrared photograph. A total of 22 preliminary vegetation types were defined based on habitat and dominant species (Table 1). Formal releve sampling for the plots in this data report was done during the period 1-26 August 1989. An attempt was made to sample at least three releve for each of the types defined in 1988, but this was not possible in all cases (Tables 1 and 2). The plots were located in homogeneous areas of vegetation using the centralized replicate method of the Braun-Blanquet approach to vegetation classification (Mueller-Dombois and Ellenberg, 1974; Westhoff and van der Maarel, 1978). Nearly all of the plots are permanently marked. The exception is plot SWT-55. The plots are marked with 48-inch (122-cm) wooden stakes, and aluminum tags at the base of the stakes with the plot numbers. Some of the stakes have broken off since sampling. We intend to replace all of the wooden stakes with tall plastic stakes. Forty of the plots are located along transects as follows: 1. West-facing toposequence of Itkillik II glacial outwash and retransported hillslope deposits on the south side of Toolik Lake: (from top of hill) SWT-7, 8, 9, and 10. 2. East-facing toposequence of slope that includes Itkillik I and Itkillik glacial till and retransported hillslope deposits on the south side of Toolik Lake: SWT-18, 19, 20, 21, 22, 24, and 77. 3. South-facing toposequence on Itkillik II till and retransported hillslope deposits on the west side of Toolik Lake: SWT-46, 45, 44, 41, 40, 43, 39, 42, 38, and 37. These are in mixed positions on stone-stripes and inter- stripe sites. Plots 38 and 37 are in a colluvial basin at the base of the hill. 4. North-facing toposequence on Itkillik II till and retransported hillslope deposits: SWT-48, 47, 49, 50, 51, 52, 53, 54 and 81. Plot SWT 48 is on a ground- squirrel mound, and most of the sequence is through a deep snowbed. 5. Water-track transect on the south side of Toolik Lake: SWT-80, 32, 35, 75, 78, 27, 79, 36, 73, 74, 64. Plots SWT-80, 35, 74, and 64 are on frost scars. The remaining plots were located around Toolik Lake to sample the diversity of vegetation types of the region (Figure 1, Table 2). Sampling methods Plot size, species cover estimation, and photographs The plots have no fixed size because our main objective was to obtain a complete species list for each relief. Photographs were taken of each plot (see Appendix). Usually photos were taken of (1) the general site, (2) close-up of the vegetation, and (3) closeup of the soil. Site factors The site of each plot was described according to the variables listed in Table 3 plus measurements of thaw depth, estimates of cover of bare soil, rocks, and the major plant growth forms. These data are summarized in Table 4. Soils Field sampling Soil pits were dug adjacent to the plots and described and classified according to the U.S. soil taxonomy [Soil Survey Staff, 1975]. Soil samples were collected from each horizon and air dried in the laboratory. Bulk density and soil moisture samples were taken from the sides of the soil pits or from large soil plugs for the wet soils using a 240-ml soil can. Laboratory analysis Laboratory analyses were conducted at the Colorado State University Soil Testing Laboratory, Fort Collins. The laboratory's routine analysis was run on all samples [pH (saturated paste); NO3 (KCl extract); P, K, Zn, Fe, Cu, Mn (NH4HCO3-DTPA extract); lime estimate, texture estimate (by hand); and organic matter (Walkley-Black or ash method). Selected samples were analyzed for cation exchange capacity (C.E.C.); percentage gravel; particle size (hydrometer method), CaCO3 equivalent; Ca, Mg, Na, K (NH4OAc extract); and soil moisture retention (field capacity at 1/3 BAR and permanent wilting point at 15 BAR). These methods are described in Page et al. (1982) and Klute (1986). The soils data are in Table 5. Vegetation A large area surrounding each plot marker was searched until no new species were encountered. Estimates of vegetation cover used the Braun-Blanquet cover-abundance scale (r = rare; + = common but less than 1% cover; 1 = 1-5%; 2 = 6-25%; 3 = 25-50%; 4 = 51-75%; 5= 76-100%). Cover-abundance values are relatively broad subjective classes, and were determined by estimating cover within the general area of the stake. Voucher collections were made for all vascular plants, bryophytes, and lichens occurring in the plot. Vascular plants were verified by Dr. Dave Murray, University of Alaska Herbarium. Bryophytes were verified by Dr. Dale Vitt, University of Alberta. Lichens were verified by Dr. Joanne Flock at the University of Colorado Herbarium. Table 6 contains the raw species data. Acknowledgments This work was funded by the Department of Energy's R4D (Response, Resistance, and Resilience to, and Recovery from Disturbance in arctic ecosystems) (Grant No. DE-FG02-84ER60242.A006). Curt Westburg, Nancy Auerbach, and Marilyn Walker assisted in the field. Liz Arnold, Diane Andrews, Nan Lederer, Leanne Lestak, and Diane Lorenz assisted with the preparation of this report. Notes: The tables and figure can be found in the full report which is available online at http://arcss.colorado.edu/data/arcss.html. Reference Citations: Klute, A. 1986. Methods of soil analysis, Part 1. Physical and mineralogical methods. Agronomy Series, No. 9, American Society of Agronomy, Inc.. and Soil Science Society of American, Inc. Madison, WI, 1188 pp. Mueller-Dombois, D. And H. Ellenberg. 1974. Aims and methods of vegetation ecology. New York: John Wiley and Sons, 547 pp. Page, A.L., R.H. Miller, and D.R. Keeney (Eds.) 1982. Methods of soil analysis, Part 2. Chemical and microbiological properties. Agronomy Series, No. 9, American Society of Agronomy, Inc.. and Soil Science Society of American, Inc. Madison, WI, 1159 pp. Soil Survey Staff. 1974. Soil taxonomy of the National Cooperative Soil Survey. Soil Conservation Service, U.S. Department of Agriculture, 754 pp. Walker, D.A., N.D. Lederer, and M.D. Walker. 1987. Permanent vegetation plots: site factors, soil physical and chemical properties, and plant species cover. Data report for R4D Program, U.S. Department of Energy. Westhoff V. and E. van der Maarel. 1978. The Braun-Blanquet approach. In: Whittaker, R.H. (Ed.) Classification of plant communities. Boston: Junk, pp. 617-726.

Data Table

Variable Name	Variable Description	Data Type	Units	DateTime Format	Code Information	Missing Value Code
Growth Form	Classification as to the plants growth form.	text
Species Name	Latin name of the plant	text

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