Data Package Metadata   View Summary

Rodent capture data across grassland-shrubland ecotones at 3 sites in the Jornada Basin, 2004-ongoing

General Information
Data Package:
Local Identifier:knb-lter-jrn.210262008.5
Title:Rodent capture data across grassland-shrubland ecotones at 3 sites in the Jornada Basin, 2004-ongoing
Alternate Identifier:DOI PLACE HOLDER
Abstract:

The objective of this study is to investigate how pulses of precipitation translate into pulses of plant aboveground net primary productivity (ANPP) and how the small mammal community responds to such changes in relation to shrub gradients in northern Chihuahuan Desert landscapes. This dataset consists of the first capture of individuals each year that can be used to calculate an index of relative abundance of rodents (i.e., number of unique individuals captured by species). The first-capture data are derived from mark-recapture sampling during 4 consecutive night trapping events held annually in three habitat vegetation zones (grassland, ecotone, and mesquite shrubland) at three grassland-to-shrubland ecotone sites in the Jornada Basin, Dona Ana County, New Mexico, USA. Variables include rodent species, sex, reproductive status, weight, and maturity status. Also available are measures of relative abundance and biomass of rodents in data package knb-lter-jrn.210262010. This is an ongoing dataset.

Publication Date:2022-04-13
Language:English
For more information:
Visit: https://jrn.lternet.edu
Visit: DOI PLACE HOLDER

Time Period
Begin:
2004-07-13
End:
2021-10-23

People and Organizations
Contact:Jornada Basin LTER Information Manager (Jornada Basin LTER/New Mexico State University) [  email ]
Creator:Bestelmeyer, Brandon T (USDA-ARS Jornada Experimental Range)
Creator:Schooley, Robert (University of Illinois)

Data Entities
Data Table Name:
Rodent capture data across grass-shrub ecotones at 3 sites, 2004-ongoing
Description:
Add description
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210262008/5/22dc2638df3cc670874b5982f5e99ff9
Name:Rodent capture data across grass-shrub ecotones at 3 sites, 2004-ongoing
Description:Add description
Number of Records:7732
Number of Columns:15

Table Structure
Object Name:Ecotone_Rodent_Capture.csv
Size:886583 byte
Authentication:acb6241932c995f69ef4c9c389f66d69 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 YearDateNightSiteHabitatStationTagSpecies codeSpecies binomialCommon nameSexRepStatusWeightComment
Column Name:Year  
Date  
Night  
Site  
Habitat  
Station  
Tag  
Species_code  
Species_binomial  
Common_name  
Sex  
Rep  
Status  
Weight  
Comment  
Definition:year of samplingdate of samplingnight of 4-night sampling effort (1 = first, 4 = last)site namehabitat within sitetrapping station location within trapping gridID of tag affixed to/observed on rodentspecies code used in field data collectiongenus and species of rodentcommon name of rodent speciessex of rodentreproductive status of rodentrodent maturity statusweight of rodentcomment
Storage Type:date  
date  
float  
string  
string  
string  
string  
string  
string  
string  
string  
string  
string  
float  
string  
Measurement Type:dateTimedateTimerationominalnominalnominalnominalnominalnominalnominalnominalnominalnominalrationominal
Measurement Values Domain:
FormatYYYY
Precision1
FormatYYYY-MM-DD
Precision1
Unitdimensionless
Typereal
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeCDRRC Pasture 3
DefinitionPasture 3 on the CDRRC
Source
Code Definition
CodeJER Pasture 12A
DefinitionPasture 12 A on the JER
Source
Code Definition
CodeJER Pasture 9
DefinitionPasture 9 on the JER
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeG
DefinitionGrassland habitat portion of site
Source
Code Definition
CodeE
DefinitionEcotone habitat portion of site
Source
Code Definition
CodeS
DefinitionShrubland habitat portion of site
Source
Definitionany text
Definitionany text
Definitionany text
Definitionany text
Definitionany text
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeF
DefinitionFemale
Source
Code Definition
CodeM
DefinitionMale
Source
Code Definition
CodeU
DefinitionSex unknown or undetermined
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeR
Definitionreproductive
Source
Code Definition
CodeNR
Definitionnot reproductive
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeL
Definitionlactating adult
Source
Code Definition
CodeP
Definitionpregnant adult
Source
Code Definition
CodeS
Definitionscrotal adult
Source
Code Definition
CodeV
Definitionvaginal adult
Source
Code Definition
CodeJ
Definitionjuvenile
Source
Code Definition
CodePS
Definitionpost-scrotal adult
Source
Code Definition
CodeA
Definitionadult
Source
Unitgram
Typereal
Definitionany text
Missing Value Code:          
CodeNA
ExplMissing value - data not collected or otherwise unavailable
CodeNA
ExplMissing value - data not collected or otherwise unavailable
       
CodeNA
ExplMissing value - data not collected or otherwise unavailable
CodeNA
ExplMissing value - data not collected or otherwise unavailable
CodeNA
ExplMissing value - data not collected or otherwise unavailable
CodeNA
ExplNo comment, quality flag, or additional information available
Accuracy Report:                              
Accuracy Assessment:                              
Coverage:                              
Methods:                              

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
LTER Core Research AreasPrimary Production, populations
LTER Controlled Vocabulary v1aboveground production, deserts, grasses, herbs, net primary production, plant, populations, shrubs, vascular plants, vegetation
noneJornada Basin LTER, black grama, core, ecotone, honey mesquite, long-term experiment, plant, shrub encroachment, shrub invasion
Jornada Basin LTER dataset keywordsVegetation Dynamics, core
Jornada Basin project namesEcotone, study 262
Jornada Basin place namesCDRRC Pasture 3, Pasture 12A, Pasture 9

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:

This experiment was conducted at three sites, each with a grassland-to-shrubland ecotone. Two of the sites, JER Pasture 9 and JER Pasture 12A, occur on the USDA Agricultural Research Service Jornada Experimental Range. One site, CDRRC Pasture 3, is located on New Mexico State University’s Chihuahuan Desert Rangeland Research Center. Climate is arid to semi-arid, with long-term (90-year) mean annual temperature of 15C and mean annual precipitation of 250 mm, over half of which occurs in summer (July–September).

Sites were chosen to contain 3 distinct habitat types (or "ecotone positions"): grassland, ecotone, and shrubland. Within each habitat type of each site, a 300m x 100m rectangular trapping area was established. Trapping locations were arranged as a 16 x 6 grid within the trapping area with 20m spacing between traps, yielding 96 traps per habitat and 288 traps per site for a total of 864 trapping locations for the entire study. The trapping area encompasses the quadrats assessed for plant cover in data package knb-lter-jrn.210262001, which was used to calculate annual net primary productivity estimates available in data packages knb-lter-jrn.210262004 and knb-lter-jrn.210262005.

Livetrapping was conducted annually over 4 consecutive nights using Sherman model XLKR live traps baited with a seed mix. Traps were set in late afternoon/early evening and checked the following morning. Ear tags were affixed to rodents with ears large enough to support them. Rodents too small to affix ear tags were given a unique ID which was labeled on their ventral side with a permanent marker. Blue permanent markers were used on rodents trapped on the first night, black on the second night, and red on the third night. No permanent markers were used on rodents caught on the fourth night, but ear tags were still administered if possible. In addition to tagging/marking, rodents were weighed, identified to species, and assessed for sex, reproductive status, and maturity status. The dataset includes only the first capture of each individual each year, which can be used to estimate relative abundance.

From 2004 to 2007, livetrapping occurred mostly during July. From 2008 to 2018, when the project had become part of long-term sampling by Jornada Basin LTER program, livetrapping occurred during October. The three habitat types within each site were trapped during the same week.

Observations in the dataset may have missing tags for several reasons, including: 1) rodents caught on the fourth night whose ears were too small for an ear tag, 2) rodents who escaped before an ear tag could be read, 3) rodents who escaped before an ear tag could be affixed, and 4) observer error. Reasons 2-4 may also apply to observations with missing values for Sex, Rep, and Status.

Also available are measures of relative abundance and biomass of rodents in data package knb-lter-jrn.210262010.

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@environmentaldatainitiative.org
Web Address:
https://environmentaldatainitiative.org
Id:https://ror.org/0330j0z60
Creators:
Individual: Brandon T Bestelmeyer
Organization:USDA-ARS Jornada Experimental Range
Address:
P.O. Box 30003; MSC 3JER New Mexico State University,
Las Cruces, NM 88003-8003 U.S.A.
Id:https://orcid.org/0000-0001-5060-9955
Individual: Robert Schooley
Organization:University of Illinois
Email Address:
schooley@illinois.edu
Id:https://orcid.org/0000-0001-5951-2340
Contacts:
Organization:Jornada Basin LTER/New Mexico State University
Position:Jornada Basin LTER Information Manager
Address:
P.O. Box 30003, MSC 3JER New Mexico State University,
Las Cruces, NM 88003-8003 USA
Phone:
575-646-1739
Email Address:
jornada.data@nmsu.edu
Web Address:
https://lter.jornada.nmsu.edu/information-management/
Metadata Providers:
Organization:Jornada Basin LTER/New Mexico State University
Position:Jornada Basin LTER program
Address:
P.O. Box 30003; MSC 3JER New Mexico State University,
Las Cruces, NM 88003-8003 USA
Email Address:
jornada.lter@nmsu.edu
Web Address:
https://lter.jornada.nmsu.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2004-07-13
End:
2021-10-23
Sampling Site: 
Description:Headquarters or unspecified: Jornada Experimental Range Headquarters. These generic coordinates may not necessarily specify the location of the study. More precise geographic coordinates for this study may be requested from the JRN LTER Data Manager (jornada.data@nmsu.edu).
Site Coordinates:
Longitude (degree): -106.740997Latitude (degree): 32.617001

Project

Parent Project Information:

Title:Jornada Basin LTER
Personnel:
Individual:Dr. Niall Hanan
Address:
P.O. Box 30003, MSC 3JER,
New Mexico State University,
Las Cruces, NM 88003-8003 United States
Phone:
575-646-3335 (voice)
Email Address:
nhanan@nmsu.edu
Role:Principal Investigator
Abstract:

The Jornada Basin Long-Term Ecological Research (LTER) program is part of a national network of long-term ecological research sites funded by the US National Science Foundation (NSF). The Jornada LTER program has been continuously funded since 1982 to develop general principles governing changes between grassland and shrubland ecosystems based on long-term data collected in the Chihuahuan Desert. We translate our findings to dryland ecosystems around the world, and forecast the dynamics of future ecosystem states in response to changing climate and land use.

Funding:

JRN LTER is funded by the National Science Foundation under award DEB 2025166.

Maintenance

Maintenance:
Description:ongoing
Frequency:annually
Other Metadata

Additional Metadata

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