Pawnee National Grassland (off-colony)
Basic information
Sample name: Pawnee National Grassland (off-colony)
Reference: J. J. Kenney, J. K. Detling, and R. P. Reading. 2016. Influence of black-tailed prairie dogs (Cynomys ludovicianus) on short- horned grasshoppers (Orthoptera: Acrididae) on the shortgrass steppe of Colorado. Journal of Arid Environments 127:93-99 [ER 2157]
Geography
Country: United States
State: Colorado
Coordinate: 40° 45' N, 104° 41' W
Coordinate basis: stated in text
Geography comments: "at five sites in the western half of the Pawnee National Grassland"
Environment
Habitat: temperate savanna
Protection: other protected area
Substrate: ground surface
Disturbance: grazing
MAP: 322.0
Habitat comments: "shortgrass steppe... with no known history of prairie dog occupation... All sites were open to grazing by cattle"
Methods
Life forms: orthopterans
Sites: 5
Sampling methods: no design,hoop nets
Sample size: 415 individuals
Years: 1997, 1998
Days: 8
Seasons: summer,autumn
Sampling comments: "Within each... site, we sampled within one 45 m 75 m plot... In 1997, we conducted abundance sampling 15-16 July, 4-5 August, 18-19 August and 13-14 September... In 1998, we collected samples at 4 week intervals from 16 June through 15 September... Within each plot, we sampled grasshopper abundance by counting the number of grasshoppers flushed from twenty 0.8 m2 hoops placed within a 4 x 5 hoop grid with 15 m between hoop centers"
counts do include nymphs
counts do include nymphs
Metadata
Sample number: 2156
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-07-28 12:32:50
Modified: 2018-06-30 11:02:58
Abundance distribution
18 species
1 singleton
total count 415
extrapolated richness: 22.7
Fisher's α: 3.835
geometric series k: 0.7641
Hurlbert's PIE: 0.8681
Shannon's H: 2.3006
Good's u: 0.9976
Each square represents a species. Square sizes are proportional to counts.
• Find matching samples
Register
| Trachyrhachys spp. | 78 | |
| includes T. aspera and T. kiowa | ||
| Opeia obscura | 97 | |
| Psoloessa delicatula | 37 | |
| Melanoplus sp. | 50 | |
| includes M. gladstoni, M. infantilis, M. packardii, and M. sanguinipes | ||
| Xanthippus corallipes | 28 | |
| Arphia pseudonietana | 28 | |
| Phlibostroma quadrimaculatum | 34 | |
| Encoptolophus costalis | 13 | |
| Cordillacris crenulata | 9 | |
| Arphia conspersa | 9 | |
| Ageneotettix deorum | 14 | |
| Trimerotropis spp. | 3 | |
| Eritettix simplex | 3 | |
| Spharagemon sp. | 3 | |
| Amphitornus coloradus | 2 | |
| Hesperotettix viridis | 3 | |
| Phoetaliotes nebrascensis | 3 | |
| Aulocara elliotti | 1 | |