Data Package Metadata   View Summary

Cryptogam Crust Data from Long-Term Small Mammal Exclosure Study on the Jornada Experimental Range, 1995-2005

General Information
Data Package:
Local Identifier:knb-lter-jrn.210086003.72
Title:Cryptogam Crust Data from Long-Term Small Mammal Exclosure Study on the Jornada Experimental Range, 1995-2005
Alternate Identifier:DOI PLACE HOLDER
Abstract:

A creosotebush shrub study site and a black grama grassland study site have been established at each of the Sevilleta, Jornada and Mapimi research locations. Each study site is 1 km by 0.5 km in area. Three replicate experimental blocks of plots are randomly located at each study site to measure vegetation responses to the exclusion of small mammals, including rodents and lagomorphs. This dataset is for the Jornada Experimental Range, which also contains a cattle exclosure.  A grid of 36 sampling points are positioned at 5.8-meter intervals on a systematically located 6 by 6 point grid within each plot. A permanent one-meter by one-meter vegetation measurement quadrat is located at each of the 36 points. The percent of a quad covered in cryptograms was estimated by determining the percent of each 10 cm square within a quad containing cryptogams (See methods for a detailed explanation). Cryptogams include lichens, algae, and moss. This study is complete.

Short Name:JornadaStudy_086_smes_cryptogam_crust_quad_data
Publication Date:2011-12-03
Language:English

Time Period
Begin:
1995-04-10
End:
2005-10-26

People and Organizations
Contact:Schooley, Robert (University of Illinois, schooley@illinois.edu) 
Contact:Maurer, Greg (Jornada LTER, datamanager.jrn.lter@gmail.com) 
Creator:Lightfoot, David 
Associate:Schooley, Robert (University of Illinois, schooley@illinois.edu, current responsible investigator)

Data Entities
Data Table Name:
data_JornadaStudy_086_smes_cryptogam_crust
Description:
Data file information for the following Jornada data set: SMES cryptogam crust data
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210086003/72/9bb9b63e12ecfc82e6147f8b87a24251
Name:data_JornadaStudy_086_smes_cryptogam_crust
Description:Data file information for the following Jornada data set: SMES cryptogam crust data
Number of Columns:18

Time Period
Begin:
1995-04-10
End:
2005-10-26

Table Structure
Object Name:JornadaStudy_086_smes_cryptogam_crust_quad_data.csv
Size:2370944
Text Format:
Number of Header Lines:30
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 datesite codeblockplottreatmentquadcoveridcomment codeyearseasondata typekey fielddataset idx spatial coordinatey spatial coordinatetable identifierGIS layer identifier
Column Name:date  
site  
block  
plot  
treatment  
quad  
cover  
id  
comment_code  
year  
season  
type  
keyfield  
datasetid  
Point_X  
Point_Y  
table_id  
layer_id  
Definition:Date data was collected (month/day/year)Site codeBlock numberPlot numberTreatment typeQuad numberCryptogam crust cover/quadBook -or- Tape Number B01 = Book number one SMXVQF95.JA1 - Code on tapecomment codeYear of collectionSeason (spring or fall)Data typespatial primary key field (specific to Jornada Integrated Information Management System [JIIMS])old dataset identifier (specific to JIIMS)x spatial coordinate [NEED COORDINATE SYSTEM, DATUM, PROJECTION SYSTEM, ...] (specific to JIIMS)y spatial coordinate [NEED COORDINATE SYSTEM, DATUM, PROJECTION SYSTEM, ...] (specific to JIMS)Table identifier (used by JIIMS)GIS layer identifier (used by JIIMS)
Storage Type:date  
string  
    string  
    string  
string  
date  
string  
string  
string  
string  
string  
string  
string  
string  
Measurement Type:dateTimenominalratiorationominalratiorationominalnominaldateTimenominalnominalnominalnominalnominalnominalnominalnominal
Measurement Values Domain:
Formatmm/dd/yyyy
Precision
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeC
DefinitionCreosotebush
Source
Code Definition
CodeG
DefinitionGrassland
Source
UnitN/A
Precision1
Typereal
Min
Max
UnitN/A
Precision1
Typereal
Min
Max
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeC
DefinitionControl
Source
Code Definition
CodeR
DefinitionRodent Exclosure
Source
Code Definition
CodeL
DefinitionLagomorph Exclosure
Source
Code Definition
CodeB
DefinitionBovine Exclosure
Source
UnitN/A
Precision1
Typereal
Min
Max36 
UnitN/A
Precision1
Typereal
DefinitionBook -or- Tape Number B01 = Book number one SMXVQF95.JA1 - Code on tape
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Code0
Definitionno comment
Source
Code Definition
Code1
Definitionsee data history log
Source
Formatyyyy
Precision
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeS
Definitionspring
Source
Code Definition
CodeF
Definitionfall
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeCR
Definitioncryptogamic crust
Source
Definitionspatial primary key field (specific to Jornada Integrated Information Management System [JIIMS])
Definitionold dataset identifier (specific to JIIMS)
Definitionx spatial coordinate [NEED COORDINATE SYSTEM, DATUM, PROJECTION SYSTEM, ...] (specific to JIIMS)
Definitiony spatial coordinate [NEED COORDINATE SYSTEM, DATUM, PROJECTION SYSTEM, ...] (specific to JIMS)
DefinitionTable identifier (used by JIIMS)
DefinitionGIS layer identifier (used by JIIMS)
Missing Value Code:                                    
Accuracy Report:                                    
Accuracy Assessment:                                    
Coverage:                                    
Methods:                                    

Data Package Usage Rights

Data Policies

Objectives:
    The Jornada Basin LTER Information Management System (JIMS) provides protocol and services for data collection, verification, organization, archives, and distribution in accordance with recommendations and guidelines developed by the LTER Information Managers Committee (http://www.lternet.edu/data/netpolicy.html). 
Disclaimer:
    While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Jornada Basin LTER shall not be liable for damages resulting from any use or misinterpretation of data sets. 
Quality Assurance Policy:
    Data managers interact with researchers during the entire scientific process--from the initial planning of sampling designs and field data collection to archiving and distribution of data. The goal of data management is to build and maintain an archive of Jornada Basin LTER data files that are fully documented, error free, and organized in useful ways. Our protocol for data collection and processing seeks maximum interaction between researchers and data management personnel to avoid confusion and potential loss of data or problems with integrity of data; e.g., identification of historical site treatments that may impact a proposed study or incomplete data set variable descriptions. Site and Data Manager involvement begins during the Project Design phase with the completion of the Jornada Notification of Research form by the researcher prior to the start of work; this alerts both Site and Data Manager to the new study and potential LTER data sets. Upon initiation of a new study, the researcher completes Project Documentation that provides the second level of "metadata" documentation.

    In the Data Collection phase, the data manager helps researchers design field and laboratory data sheets that facilitate data entry and analysis. Prior to JIMS data entry the investigator completes Data Set Documentation to provide the metadata that fully describe the data set. Both Project and Data set documentation are provided with the data set when it is requested or obtained from our Web site. JIMS data entry programs error-check and verify data as they are entered. Computer files are subjected to further verification by graphing and/or error-checking programs, and/or examination by field investigators. Final quality assurance of the data rests with the investigator who submits data for inclusion in the Data Management System. Direct communication with the Site Manager, or through a collaborating JRN P.I., is used to encourage the timely submission of documentation and of data by researchers.

    Error-checked data files are stored with associated documentation files on the file server. Archived data files are maintained in ASCII format on 30-yr magneto-optical (MO) disks, portable hard drives, CD-R media, and DVD media to guard against loss of data access that can result from changing technology. This may also include proprietary binary format files to facilitate recovery of working versions. Image data are archived on 8mm tape. Routine tape data backups of the file server are done daily, weekly, and monthly. One set of off-site copies are maintained elsewhere on the NMSU campus of routine backup tapes, MO disks, CD disks, and DVD disks with a second set of MO, CD and DVD disks maintained off-campus in case of a catastrophe on campus. The final responsibility for quality assurance (both in data and documentation content) rests with the principal investigator who submits the data for inclusion in the Jornada Basin LTER Information Management System. To facilitate quality assurance, the data manag ement staff will provide copies of data and documentation submitted by a principal investigator to that investigator upon request.

    The final responsibility for quality assurance (both in data and documentation content) rests with the principal investigator who submits the data for inclusion in the Jornada Basin LTER Information Management System. To facilitate quality assurance, the data management staff will provide copies of data and documentation submitted by a principal investigator to that investigator upon request.
Policy on Submission of data:
    Data submission into JIMS is expected from LTER researchers, LTER collaborators, and their graduate students where data and information is derived from publicly funded research in the U.S. LTER Network, totally or partially from LTER funds from NSF, Institutional Cost-Share, or Partner Agency or Institution where a formal memorandum of understanding with LTER has been established. Other Jornada Basin researchers are encouraged to submit their documented data for inclusion within JIMS to provide them with an archived backup, ensure its longevity, and provide online access to encourage synthesis efforts. Minimally, for non-LTER associated researchers, we request that publications be provided of research conducted on the Jornada Basin.

    Initial documentation for a data set must be submitted to the Jornada Basin LTER data manager within 90 days of initiation of data collection. Documentation forms are available at http://jornada-www.nmsu.edu/site/dm/readme.php . These consist of Project Abstract and Data Set and Attribute documentation forms, which include objectives of the study, methods, as well as format and content of the data. All data collected during a calendar year should be submitted to the Jornada Basin LTER data manager prior to July first of the following year. First time data submissions must be submitted with updated standard Jornada Basin LTER forms previously submitted.
Data Access Policy:
    Data will be made publicly available no later than 2 years after submission of the data unless an earlier date is specified by the principal investigator. In the event that an extension of the 2 year period is necessary, the principal investigator may petition the Jornada Basin LTER Executive Committee for a longer protected period. Graduate student research data will be available online after degree completion and they have the opportunity to publish their research. 
Policies for re-use, distribution, or the production of derivatives:
    Data re-use, distribution and production of derivative products are governed by the LTER Network data policies (http://www.lternet.edu/data/netpolicy.html) in the spirit of having the potential to increase communication, collaboration and synthesis within and among disciplines. Appropriate citation, acknowledgement, notification and collaboration are outlined and recommended. No commercial redistribution of data and derived products are allowed.
Data Acknowledgment Policy:
    Please send notification to the Information Manager (datamanager@jornada-vmail.nmsu.edu) and Responsible Investigator(s) of the data sets you are downloading and your intended use. 
    Individuals and institutions utilizing data from the Jornada Basin LTER database are requested to place the following acknowledgment in any publication in which these data are mentioned:

        Data sets were provided by the Jornada Basin Long-Term Ecological Research (LTER) project. Funding for these data was provided by the U.S. National Science Foundation (Grant DEB-0618210).

    Please send 1 copy of any publication that cites Jornada Basin LTER data to:

         John P. Anderson
         Jornada Experimental Range
         P.O. Box 30003, MSC 3JER
         New Mexico State University
         Las Cruces, NM 88003-0003

Keywords

By Thesaurus:
Research NetworksLTAR, LTER
LTER Core AreasDisturbance
Jornada Data CategoryAnimal
Jornada Dataset Keywordscryptobiotic crusts, cryptogam crusts, cryptogams, microbiotic crusts, soil crust, soil surface
Dataset Statuscompleted
Research AreaPlant-Animal Interactions

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

Field micro-cassette tape recorders

Description:

 Each study site is 1 km by 0.5 km in area. Three rodent trapping webs and four replicate experimental blocks of plots are randomly located at each study site to measure vegetation responses to the exclusion of small mammals  The blocks of study plots are all oriented on a site in a X/Y coordinate system, with the access road to each site forming the X axis. The compass orientation at the Jornada grassland site is to the north, and Jornada creosotebush site is oriented to the south. Treatments within each block include one unfenced control plot (Treatment: C; control), one plot fenced with hardware cloth and poultry wire to exclude rodents and rabbits (Treatment: R; rodent), and one plot fenced only with poultry wire to exclude rabbits (Treatment: L; lagomorph), and one plot fenced with barbed wire to exclude cattle (Treatment B; bovine). There are cattle exclosure plots only at the Jornada grassland site where cattle are present, for a total of 4 measurement plots at each of the grassland site blocks. There are only 3 measurement plots at each of the creosotebush site blocks. The treatments are randomly assigned to each of the four possible plots in each block independently, and their arrangements differ from block to block. Each of the plots in a replicate block are separated by 20 meters. Each experimental measurement plot measures 36 meters by 36 meters. A grid of 36 sampling points are positioned at 5.8-meter intervals on a systematically located 6 by 6 point grid within each plot. A permanent one-meter by one-meter vegetation measurement quadrat is located at each of the 36 points. All cover values are measured from the vegetation measurement frame, which is 1 meter by 1 meter, and partitioned into a grid of 100, 10 cm by 10 cm squares. Cryptogams include lichen, moss, and algae.Cover is measured by counting the number of 10cm squares that are occupied by the cryptogams. Some cryptogam cover has distinctive margins and is easy to define and measure. However, many cryptogam crusts consist of many diffuse small patches that are separated by bare soil, and distributed throughout the quadrat. For such diffuse cover, the actual cover in one typical 10 by 10 cm square (e.g., 0.3) is determined, then multiplied by the number of squares with diffuse cover (e.g., 5). Cover across all squares is added to make one estimate for the quad. For cover values greater than 5, increments of five are used.

Quality Control
Quality Control Step 1: 
Description:

SAS programs was used to analyze data

People and Organizations

Publishers:
Organization:Jornada Basin LTER
Web Address:
http://jornada.nmsu.edu/lter
Creators:
Individual: David Lightfoot
Contacts:
Individual: Robert Schooley
Organization:University of Illinois, schooley@illinois.edu
Web Address:
https://orcid.org/0000-0001-5951-2340
Individual: Greg Maurer
Organization:Jornada LTER, datamanager.jrn.lter@gmail.com
Associated Parties:
Individual: Robert Schooley
Organization:University of Illinois, schooley@illinois.edu
Web Address:
https://orcid.org/0000-0001-5951-2340
Role:current responsible investigator

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
1995-04-10
End:
2005-10-26
Geographic Region:
Description:Our study site is located in the northern Chihuahuan Desert, approximately 25 km northeast of Las Cruces, New Mexico, USA (+32.6 N, -106.7 W, elevation 1315 m). Annual precipitation is 24 cm and maximum temperatures average 13 C in January and 36 C in June. Our study site includes the 78,000 ha Jornada Experimental Range operated by the USDA Agricultural Research Service (http://jornada.nmsu.edu/), and the 22,000 ha Chihuahuan Desert Rangeland Research Center (CDRRC, http://chihuahuansc.nmsu.edu/) operated by New Mexico State University (http://www.nmsu.edu/).
Bounding Coordinates:
Northern:  32.7494871Southern:  32.47317259
Western:  -106.8728831Eastern:  -106.6927163
Altitude (meter):1315

Temporal, Geographic and/or Taxonomic information that applies to Data Table: data_JornadaStudy_086_smes_cryptogam_crust


Time Period
Begin:
1995-04-10
End:
2005-10-26

Project

Maintenance

Maintenance:
Description:

Twice each year through 1995: April and October Once every 5 years after 1995: October.
Cryptogam crust measurements ended in 2005. This study is complete.

Frequency:

Additional Info

Additional Information:
 

A creosotebush shrub study site and a black grama grassland study site have been established at each of the Sevilleta, Jornada and Mapimi research locations. Each study site is 1 km by 0.5 km in area. Three rodent trapping webs and four replicate experimental blocks of plots are randomly located at each study site to measure vegetation responses to the exclusion of small mammals. The blocks of study plots are all oriented on a site in a X/Y coordinate system, with the access road to each site forming the X axis. The compass orientation at the Jornada grassland site is to the north, and Jornada creosotebush site is oriented to the south. Treatments within each block include one unfenced control plot (Treatment: C; control), one plot fenced with hardware cloth and poultry wire to exclude rodents and rabbits (Treatment: R; rodent), and one plot fenced only with poultry wire to exclude rabbits (Treatment: L; lagomorph), and one plot fenced with barbed wire to exclude cattle (Treatment B; bovine). Note that there are cattle exclosure plots only at the Jornada grassland site where cattle are present, for a total of 4 measurement plots at each of the grassland site blocks. There are only 3 measurement plots at each of the creosotebush site blocks. The treatments were randomly assigned to each of the four possible plots in each block independently, and their arrangements differ from block to block. Each of the plots in a replicate block are separated by 20 meters. Each experimental measurement plot measures 36 meters by 36 meters (see Figure 4). A grid of 36 sampling points are positioned at 5.8-meter intervals on a systematically located 6 by 6 point grid within each plot. A permanent one-meter by one-meter vegetation measurement quadrat is located at each of the 36 points. The 36 quadrats are numbered 1-36, starting with number 1 in the top left corner of each plot, and running left to right, then down one row, and then right to left, and so on. A 2-foot rebar marks the lower right corner of each quadrat, and an aluminum tag on the rebar gives the quad number. 3-inch nails were originally placed in the top left corner of each quadrat. These may be difficult to see. A 3-meter wide buffer area is situated between the grid of 36 points and the perimeter of each plot. Rodent trapping webs are being used to determine the composition of rodent species at each study site, and to estimate densities of each species over time. The use of webs and distance measures to estimate rodent densities is statistically more robust than grid plot sampling and mark-release indices. Each rodent trapping web consists of a series of 12 equally spaced lines radiating from a central point. Each line consists of 12 trap stations. The first trap station is located 5 meters from the center, the next three at 5 meter intervals, and the remaining 8 at ten meter intervals. Each trap line is 100 meters long, and each web is 200 meters in diameter.

Other Metadata

Additional Metadata

additionalMetadata
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