Summary Information
Small Mammal Exclosure Study (SMES) Ant Data from Chihuahuan Desert Grassland and Shrubland at the Sevilleta National Wildlife Refuge, New Mexico (1995-2005)
Creator:
Individual: David Lightfoot
Physical Address:
Delivery Address: Sevilleta LTER, 167 Castetter Hall, University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131
Phone: US
Email: dlightfo@unm.edu
Metadata Provider:
Individual: Information Manager Sevilleta LTER
Physical Address:
Delivery Address: 1 University of New Mexico
City: Albuquerque
Postal Code: 87131
Phone: US
Phone: (505) 277-2109
Phone: (505) 277.5355
Email: data-use@sevilleta.unm.edu
Associated Party:
Individual: David Lightfoot
Physical Address:
Delivery Address: Sevilleta LTER, 167 Castetter Hall, University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131
Phone: US
Email: dlightfo@unm.edu
Role: data manager
Associated Party:
Individual: David Lightfoot
Physical Address:
Delivery Address: Sevilleta LTER, 167 Castetter Hall, University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131
Phone: US
Email: dlightfo@unm.edu
Role: field crew
Publication Date: 2016-03-08
Language: English
Abstract:
Animal consumers have important roles in ecosystems, determining plant species composition and structure, regulating rates of plant production and nutrients, and altering soil structure and chemistry. This is data for numbers and species of seed harvester ant nests mapped from each of the SMES study plots. Seed harvester ant nests were mapped on each of the study plots once each year in the autumn. Ant nest maps were drawn on to pre-designed plot diagrams. Each nest was located on the diagram in reference to one of the 36 vegetation quadrat marker posts. The distance from the post, direction from the post, and species name were plotted on the map diagram. Data such as total numbers of nests of each ant species, and spatial arrangement of nests, were then taken from the diagram maps. The following question was asked: Do small mammals interact with other herbivore and granivore consumers enough to affect the species composition and abundances of other consumers such as ants?
Keywords:
Keyword: populations
Keyword Thesaurus: Core Areas
Keywords:
Keyword: community patterns
Keyword: mapping
Keyword: surveys
Keyword: mapping
Keyword: soil
Keyword: deserts
Keyword: grasslands
Keyword: ants
Keyword: small mammals
Keyword: grasses
Keyword Thesaurus: LTER Controlled Vocabulary
Additional Information:
Intellectual Rights:
Data Policies
This dataset is released to the public and may be freely downloaded. Please keep the designated contact person informed of any plans to use the dataset. Consultation or collaboration with the original investigators is strongly encouraged. Publications and data products that make use of the dataset must include proper acknowledgement of the Sevilleta LTER. A copy of any publications using these data must be supplied to the Sevilleta LTER Information Manager.
Distribution:
Online:
URL: http://sevdeims-d.lternet.edu/data/sev-88
Coverage:
Geographic Goverage:
Geographic Description: Five Points Black Grama is on the transition between Chihuahuan Desert Scrub and Desert Grassland habitat. The site is subject to intensive research activity, including assessments of net primary productivity, phenology, and pollinator diversity, amongst other projects.  It is the site of the unburned black grama (GU) component of the Burn NPP study. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. By August 5, 2009, the fire had reached the Five Points Black Grama site.  Portions of this site were burned, but not the entirety.  See individual projects for further information on the effects of the burn.  
Bounding Coordinates:
West Bounding Coordinates: -106.736
East Bounding Coordinates: -106.736
North Bounding Coordinates: 34.3331
South Bounding Coordinates: 34.3331
Bounding Altitude:
Altitude Minimum: 1615
Altitude Maximum: 1615
Altitude Units: meter
Geographic Goverage:
Geographic Description: The Rio Salado is an ephemeral tributary of the Rio Grande on the west side of the Sevilleta NWR, flowing west by northwest to east by southeast. Rio Salado Grassland & Rio Salado Larrea are two study sites established in 1989. These sites were established as counterparts to sites at Five Points. Between 1989 and 1998, vegetation, litter decomposition, and ground dwelling arthropod and rodent populations were studied at both sites. Core studies at these sites were largely terminated in 1998, although rodent populations are still monitored at the Rio Salado Larrea site because the Small Mammal Exclosure Study's Larrea plots are co-located there. Rio Salado Grassland is the location Met Station 44.The Rio Salado study sites are accessed by taking the San Acacia exit, going west and then taking the frontage road back north to the Sevilleta NWR gate.  After entering the refuge turn left after 0.2 mi and take this road 1.4 mi to a "T" in the road at the power lines.  An earthen berm stops road travel here and the met station is located about 300 m west on the blocked road. 
Bounding Coordinates:
West Bounding Coordinates: -106.927
East Bounding Coordinates: -106.927
North Bounding Coordinates: 34.296
South Bounding Coordinates: 34.296
Bounding Altitude:
Altitude Minimum: 1503
Altitude Maximum: 1503
Altitude Units: meter
Temporal Coverage:
Date Range:
Begin Date:
Calendar Date: 1995-10-04
End Date:
Calendar Date: 2005-09-24
Maintenance Information:
Description:
Metadata entered into access. 7 April 2009 tlk
Contact:
Position Title: Information Manager
Organization: LTER Network Office
Physical Address:
Delivery Address: UNM Biology Department, MSC03-2020
Delivery Address: 1 University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131-0001
Phone: USA
Phone: 505 277-2535
Phone: 505 277-2541
Email: tech-support@lternet.edu
URL: http://www.lternet.edu
Contact:
Individual: Information Manager Sevilleta LTER
Physical Address:
Delivery Address: 1 University of New Mexico
City: Albuquerque
Postal Code: 87131
Phone: US
Phone: (505) 277-2109
Phone: (505) 277.5355
Email: data-use@sevilleta.unm.edu
Publisher:
Individual: Information Manager Sevilleta LTER
Physical Address:
Delivery Address: 1 University of New Mexico
City: Albuquerque
Postal Code: 87131
Phone: US
Phone: (505) 277-2109
Phone: (505) 277.5355
Email: data-use@sevilleta.unm.edu
Publication Place: Sevilleta LTER
Method Step:
Description:
Experimental Design:  The Small Mammal Exclosure Study plots are located in a grassland and shrubland. These plots were established in 1995 to monitor the effects of indigenous small mammals on plant communities across the Chihuahuan Desert grassland and shrubland. There are four blocks distributed randomly at each site; each block contains three treatments plots: unfenced control (C), fenced with poultry wire to exclude lagomorphs (L), and fenced with hardware cloth and poultry wire to exclude rodents and lagomorphs (R).  The three treatment plots in each block are separated by 20 meters and were randomly assigned to one of the four plots for each block.  Each plot (36m x 36 m) contains 36 permanent 1 m2 subplots.  Vegetation measurements have been consistently taken on these subplots since 1995 and  in 1996 fenced exclosures were installed. Data Collection Methods:  Ant nests were mapped from each of the study plots once each year, in the autumn. An observer walks east to west and west to east along each of the 6 lines of rebar markers looking for ant nests. The observer locates each ant nest on a diagram of the study plot using rebar markers as reference points. The position of the nest relative to the nearest rebar was marked on the diagram as a small circle. The species of ant was noted as a 2-letter acronym, first letter of the genus, and first letter of the species, within the circle on the paper. The distance from the rebar was noted in meters, and the direction from the rebar was indicated on the diagram by a line drawn between the rebar and the nest. Ant species mapped include: all Pogonomyrmex species, Aphenogaster cockerelli, and Myrmecocystus species (non-seed harvesters). Pheidole species were not mapped.
Quality Control:
Description:
Contact David Lightfoot for QA/QC procedures. dlightfo@unm.edu
Data Table:
Entity Name: sev088_smesant_04102009.txt
Entity Description: Data for SEV088
Object Name: sev088_smesant_04102009.txt
Size: 12700
Data Format:
Text Format:
Number of Header Lines: 1
Record Delimiter: \r\n
Attribute Orientation: column
Simple Delimited:
Field Delimiter: ,
Quote Character: "
Distribution:
Online:
URL: https://pasta.lternet.edu/package/data/eml/knb-lter-sev/88/122263/78be79ec846a87bfd0b84c07accfccf8
Coverage:
Temporal Coverage:
Calendar Date: 2011-08-23
Attribute List:
Attribute Name: YEAR
Attribute Label: YEAR
Attribute Definition: The year in which data was collected.
Storage Type: date
Measurement Scale:
Datetime:
Format String: YYYY
Attribute Name: DATE
Attribute Label: DATE
Attribute Definition: Date of data collection
Storage Type: date
Measurement Scale:
Datetime:
Format String: MM/DD/YYYY
Missing Value Code:
Code: .
Code Explanation: missing
Attribute Name: site
Attribute Label: SITE
Attribute Definition: The site at which data was collected.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Enumerated Domain:
Code Definition:
Code: C
Definition: Rio Salado creosote site
Code Definition:
Code: G
Definition: Black grama site
Attribute Name: BLK
Attribute Label: BLK
Attribute Definition: Block where data were collected.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: Block where data were collected.
Attribute Name: PLOT
Attribute Label: PLOT
Attribute Definition: Plot within study design.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: Plot within study design.
Attribute Name: TRT
Attribute Label: TRT
Attribute Definition: Treatment that was prescribed to the plot.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Enumerated Domain:
Code Definition:
Code: C
Definition: Control
Code Definition:
Code: L
Definition: Lagomorph exclosure
Code Definition:
Code: R
Definition: Rodent and Lagomorph exclosure
Attribute Name: SPECIES
Attribute Label: SPECIES
Attribute Definition: Four letter code that represents the first two letters of the genus and the last two letters represent the first two letters of the species.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Enumerated Domain:
Code Definition:
Code: APCO
Definition: Aphenogaster cockerelli
Code Definition:
Code: POAP
Definition: Pogonomyrmex apache
Code Definition:
Code: PODE
Definition: Pogonomyrmex desertorum
Code Definition:
Code: POIM
Definition: Pogonomyrmex imberbiculus
Code Definition:
Code: POMA
Definition: Pogonomyrmex maricopa
Code Definition:
Code: PORU
Definition: Pogonomyrmex rugosus
Code Definition:
Code: MYDE
Definition: Myrmecocystus depilis
Code Definition:
Code: NONE
Definition: no ant species
Attribute Name: NESTS
Attribute Label: NESTS
Attribute Definition: Counts of ant nests
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: Counts of ant nests