Ecological Archives E094-185-A1

Seth M. Munson, Esteban H. Muldavin, Jayne Belnap, Debra P. C. Peters, John P. Anderson, M. Hildegard Reiser, Kirsten Gallo, Alicia Melgoza-Castillo, Jeffrey E. Herrick, Tim A. Christiansen. 2013. Regional signatures of plant response to drought and elevated temperature across a desert ecosystem. Ecology 94:2030–2041. http://dx.doi.org/10.1890/12-1586.1

Appendix A. A table describing long-term vegetation measurements.

Table A1. Description (site, location, data set name, years measured, method, measurement units, objective of measurements, and reference) of long-term vegetation measurements.

Site

Location

Dataset Name

Years Measured

Method

Measurement Units

Objective of Measurements

Reference

Big Bend National Park

29°16′N, 103°13′W

Paint Gap Hills Grassland Transects

1981, 1995

Mapped cover

0.2 × 0.5 m quadrats (30 quadrats/transect), 1 transect/plot, 10 plots

Monitor long-term vegetation and soil erosion dynamics of desert grasslands

Unpublished

Big Bend National Park

29°16′N, 103°13′W

Ecological Survey of the Big Bend Area

1955, 1961, 1967, 1981, 1996, 2007

Mapped and assigned cover

6.1 × 0.3 m belt transects, 3 transects/plot, 17 plots

Understand how site characteristics and grazing influence vegetation

Wondzell and Ludwig 1995

La Campana Experimental Station

29°16′N, 106°21′W

Long-term Transects

1959, 1977, 1985, 2005, 2010

Line-intercept

30 m transects, 1 transect/plot, 47 plots

Determine how vegetation is influenced by the environment and grazing

Unpublished

Holloman Air Force Base

32°51′ N, 106°06′W

Military Training Transects

2002, 2006, 2008

Line-intercept

50 m transects, 1 or 3 transects/plot, 67 plots

Determine how the impact of military training on vegetation

Unpublished

White Sands Missile Range

33°10′N, 106°26′W

Integrated Training Area Management

1988-1989, 1992-1994, 1998-2010

Line-point intercept

100 m transects (200 points/transect), 1 transect/plot, 100 plots

Ensure that vegetation provides proper training and mission capabilities for the Department of Defense

Unpublished

Ft Bliss/ McGregor Range

32°24′N, 105°51′W

Otero Mesa Grassland Transects

1982, 1995

Mapped cover

0.2 × 0.5 m quadrats (30 quadrats/transect), 1 transects/plot, 6 plots

Monitor long-term soil erosion and vegetation dynamics of desert grasslands

Ludwig et al. 2000

BioResearch Ranch

31°43′N, 108°58′W

Peloncillos Grassland Transects

1977, 1984, 1996, 2007

Assigned cover

0.2 × 0.5 m quadrats (30 quadrats/transect), 1 transect/plot, 3 plots

Monitor long-term soil erosion and vegetation dynamics of desert grasslands

Moir 2011

Jornada LTER Site

32°31′N, 106°48′W

Permanent Chart Quadrat

1915-1980

Mapped cover

1.0 × 1.0 m quadrats, 1 quadrat/plot, 70 plots

Track the response of major forage species to cattle grazing and precipitation

Yao et al. 2006

Jornada LTER Site

32°31′N, 106°48′W

East and West Boundary Fence Plant Line Intercepts

1986, 1992, 1998, 2005

Line-intercept

30 m transects, 1 transect/plot, 67 plots

Investigate the response of vegetation with respect to landscape characteristics and release from grazing

Ludwig and Cornelius 1987

Jornada LTER Site

32°31′N, 106°48′W

Patterns of Net Primary Productivity Study

1989-2010

Assigned cover

1.0 × 1.0 m quadrats, 49 quadrats/plot, 15 plots

Assess production patterns over a range of ecosystem types and geographic areas

Huenneke et al. 2002

Jornada LTER Site

32°31′N, 106°48′W

Transect Plant Line Intercepts

1982-2003

Line-intercept

30 m transects, 1 transect/plot, 91 plots

Quantify the state of vegetation along an elevation gradient

Wondzell et al. 1996

Sevilleta LTER Site

34°21'N, 106°53'W

Deep Well/Five Points Plant Line-Intercept Transects

1989-2010

Line-intercept

400 m transects, 1 transect/plot, 2 plots

Evaluate vegetation temporal and spatial dynamics in transition zones

Gosz 1993

Sevilleta LTER Site

34°21'N, 106°53'W

Core Site Net Primary Productivity Study

1999-2010

Assigned cover

1.0 × 1.0 m quadrats, 80 quadrats/plot, 4 plots

Measure NPP across four distinct ecosystems

Muldavin et al. 2008

Sevilleta LTER Site

34°21'N, 106°53'W

Desertification Transects

1976, 1986, 1996

Line-point intercept

30.5 m transects (100 points/transect), 1 transect/plot, 30 plots

Evaluate changes in plant assemblages after removal of livestock and prairie dogs

Ryerson and Parmenter 2001

Sevilleta LTER Site

34°21'N, 106°53'W

Small Mammal Exclosure Study

1995-2008

Assigned cover

1.0 × 1.0 m quadrats, 36 quadrats/plot, 2 plots

Determine how the activities of small mammals regulate plant community structure

Báez et al. 2006

LTER = Long-Term Ecological Research

Literature Cited

Báez, S., S. L. Collins, D. Lightfoot, and T. L. Koontz. 2006. Bottom-up regulation of plant community structure in an aridland ecosystem. Ecology 87: 2746–2754.

Gosz, J. R. 1993. Ecotone hierarchies. Ecological Applications 3:369–376.

Huenneke, L. F., J. P. Anderson, M. Remmenga, and W. H. Schlesinger. 2002. Desertification alters patterns of aboveground net primary production in Chihuahuan ecosystem. Global Change Biology 8:247–264.

Ludwig, J. A., and J. M. Cornelius. 1987. Locating discontinuities along ecological gradients. Ecology 68:448–450.

Ludwig, J. A., E. Muldavin, and K. R. Blanche. 2000. Vegetation change and surface erosion in desert grasslands of Otero Mesa, southern New Mexico: 1982 to 1995. American Midland Naturalist 144:273–285.

Moir, W. H. 2011. Thirty years of weather change and effects on a grassland in the Peloncillo Mountains, New Mexico. Rangelands 33:50–57.

Muldavin, E. H., D. I. Moore, S. L. Collins, K. R. Wetherill, and D. C. Lightfoot. 2008. Aboveground net primary production dynamics in a northern Chihuahuan Desert ecosystem. Oecologia 155:123–132.

Ryerson, D. E., and R. R. Parmenter. 2001. Vegetation change following removal of keystone herbivores from desert grasslands in New Mexico. Journal of Vegetation Science 12:167–180.

Wondzell, S., and J. A. Ludwig. 1995. Community dynamics of desert grasslands: influences of climate, landforms, and soils. Journal of Vegetation Science 6:377–390.

Wondzell, S. M., G. L. Cunningham, and D. Bachelet. 1996. Relationships between landforms, geomorphic processes, and plant communities on a watershed in the northern Chihuahuan Desert. Landscape Ecology 11:351–362.

Yao, J., D. P. C. Peters, K. M. Havstad, et al. 2006. Multi-scale factors and long-term responses of Chihuahuan Desert grasses to drought. Landscape Ecology 21:1217–1231.


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