Cross Bar Cooperative Management Area
Basic information
Sample name: Cross Bar Cooperative Management Area
Reference: W. J. Priesmeyer, R. S. Matlack, and R. T. Kazmaier. 2014. Precipitation and fire impacts on small mammals in shortgrass prairie. Prairie Naturalist 46:11-20 [ER 1651]
Geography
Country: United States
State: Texas
County: Potter
Coordinate: 35° 21' N, 101° 51' W
Coordinate basis: based on nearby landmark
Geography comments: "16 km north of Amarillo" (coordinate extrapolated from Amarillo)
Environment
Habitat: temperate savanna
Substrate: ground surface
Disturbance: recent fire
MAT: 13.8
MAP: 497.0
Habitat comments: "a 4,856 ha shortgrass prairie that is situated at the junction of the High Plains and Rolling Plains ecoregions... Currently, this property is ungrazed but had a history of livestock use from 1932 until 1993... We conducted 2-year burns in spring (Mar–Apr) of 2002 and 2003, 2005, 2007, and 2009. We burned four-year treatments in 2003 and 2007"
climate data are for Amarillo and are from Turner et al. (2003, Soil Sci. Soc. Am. J.)
climate data are for Amarillo and are from Turner et al. (2003, Soil Sci. Soc. Am. J.)
Methods
Life forms: rodents
Sampling methods: line transect,baited,Sherman traps
Sample size: 833 individuals
Years: 2004 - 2009
Seasons: spring,autumn
Nets or traps: 540
Net or trap nights: 17010
Sampling comments: "We divided the Cross Bar CMA into three treatments (e.g., 2-year fire return, 4-year fire return, and 10-year non-burned control) that were replicated three times for a total of nine experimental plots... In 2004, we began sampling small mammals two times per year within one week of prescribed burning. We con- ducted the growing-season sampling session between March and April and the dormant-season sampling session between September and November. We baited traps with oats and provided polyester bedding for thermal cover. Each sampling session consisted of a 2-week period over which nine transects were sampled. Trapping sessions lasted for three consecutive nights for a total of 1,620 trap nights per trapping session. Each transect had 15 stations spaced 15 m apart, sampled with two Sherman live traps (7.6 × 8.9 × 30.4 cm; HB Sherman Trap Company, Tallahassee, FL, USA) at each station, for a total of 18 transects and 540 small mammal live traps"
Metadata
Sample number: 1851
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-12-21 18:39:10
Modified: 2015-12-21 07:39:10
Abundance distribution
14 species
1 singleton
total count 833
geometric series index: 16.7
Fisher's α: 2.391
geometric series k: 0.6774
Hurlbert's PIE: 0.8647
Shannon's H: 2.1527
Good's u: 0.9988
Each square represents a species. Square sizes are proportional to counts.
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Register
Sigmodon hispidus | 158 | 89.4 g |
Peromyscus leucopus | 156 | 21.0 g |
Reithrodontomys montanus | 124 | |
Chaetodipus hispidus | 112 | 32.1 g |
Onychomys leucogaster | 86 | 34.7 g |
Neotoma micropus | 76 | 294 g |
Baiomys taylori | 43 | 8.5 g |
Reithrodontomys megalotis | 24 | 10.3 g |
Perognathus flavus | 22 | 7.1 g |
Dipodomys ordii | 21 | 48.9 g |
Ictidomys tridecemlineatus | 5 | 160 g |
"Spermophilus tridecemlineatus" | ||
Xerospermophilus spilosoma | 3 | 128 g |
"Spermophilus spilosoma" | ||
Mus musculus | 2 | 17.6 g |
Neotoma leucodon | 1 |