beetle {gllvm} | R Documentation |
ground beetle assemblages
Description
These data describe the abundance of ground beetle assemblages from the Scottish landscape alongside with the environmental data and species traits. The data includes abundances of 68 species of ground beetle species.
Usage
data(beetle)
Format
- Y
A data frame of species composition of the ground-beetle assemblages.
- X
A data frame of study design variables and environmental data.
- SiteCode
Unique id for sample.
- Landuse
Land use type.
- Grid
Grid where sample were collected.
- Area
sampling area in Scotland.
- Samplingyear
Sampling year
- Texture
1, peat; 2, peaty loam; 3, loamy sand; 4, sandy loam; 5, sandy clay loam; 6, sandy silt loam; 7, silty clay
- Org
organic content (% loss of organic content on ignition), log10 transformed
- pH
soil pH
- AvailP
available P (mg/L), log10 transformed
- AvailK
available K (mg/L)
- Moist
percentage moisture content
- Bare
percentage cover estimate of bare ground in 11 1-m2 quadrats, arcsine transformed
- Litter
percentage cover estimate of litter cover in 11 1-m2 quadrats, log10 transformed
- Bryophyte
percentage cover estimate of bryophytes in 11 1-m2 quadrats, arcsine transformed
- Plants.m2
number of reproductive stems (flowering or fruiting) in 11 1-m2 quadrats
- Canopy
height canopy height (cm) in 11 1-m2 quadrats
- Stemdensity
number of stems (ramets) in 100 cm2
- Biom_l5
dry mass (g) of biomass 0–5 cm from soil surface in 400 cm2
- Biom_m5
dry mass (g) of biomass .5 cm from soil surface in 400 cm2, log10 transformed
- Reprobiom
biomass of reproductive parts (flowers and fruits) in 100 cm2, log10 transformed
- Elevation
elevation in m a.s.l.
- Management
management intensity index (see Materials and Methods: Environmental data)
- TR
A data frame of the species names and species morphological and life trait characteristics.
- SPECIES
Species names.
- CODE
Species codes corresponding species names in abundance matrix
- LYW
diameter of the eye, measured from above
- LAL
length of the antenna
- LPW
maximum width of the pronotum
- LPH
maximum depth (“vaulting”) of the pronotum
- LEW
maximum width of the elytra
- LFL
length of the metafemur (with the articulation segments), from the coxa to the apex
- LTR
length of the metatrochanter
- LRL
length of the metatarsi
- LFW
maximum width of the metafemur
- LTL
total length (length of the pronotum in the medial line plus length of the elytra, from the medial ridge of the scutellum to the apex)
- CLG
color of the legs (1, pale; 2, black; 3, metallic)
- CLB
color of the body (1, pale; 2, black; 3, metallic)
- WIN
wing development (1, apterous or brachypterous; 2, dimorphic; 3, macropterous)
- PRS
shape of the pronotum (1, oval; 2, cordiform; 3, trapezoidal)
- OVE
overwintering (1, only adults; 2, adults and larvae or only larvae)
- FOA
food of the adult (1, mostly Collembola; 2, generalist predator; 3, mostly plant material)
- DAY
daily activity (1, only diurnal; 2, nocturnal)
- BRE
breeding season (1, spring; 2, summer; 3, autumn or winter)
- EME
main period of emergence of the adults (1, spring; 2, summer; 3, autumn)
- ACT
main period of adult activity (1, autumn; 2, summer only)
Details
Beetles were sampled with two parallel rows of nine pitfall traps (diameter 7.5 cm, 2 m apart) at each site, starting in early May.
Detailed description of the data available in the reference and in the Ecological Archives E082-012.
References
Ignacio Ribera, Sylvain Dolédec, Iain S. Downie, and Garth N. Foster. 2001. Effect of land disturbance and stress on species traits of ground beetle assemblages. Ecology 82:1112-1129.
Examples
## Not run:
data(beetle)
# Abundance matrix
Y <- beetle$Y
# Environmental data
X <- beetle$X
# Species traits
TR <- beetle$TR
## End(Not run)