Sample name: Delta Junction

Reference: A. Pantoja, D. S. Sikes, A. M. Hagerty, S. Y. Emmert, and S. Rondon. 2013. Ground beetle (Coleoptera: Carabidae) assemblages in the Conservation Reserve Program crop rotation systems in interior Alaska. Journal of the Entomological Society of British Columbia 110:6-18 [ER 2205]

Habitat: boreal forest/taiga

Altered habitat: cropland

Substrate: ground surface

WMT: 16.0

CMT: -3.0

MAP: 275.0

Habitat comments: CRP fields "are mown every two to three years to slow succession to shrubs and trees... Plots with nine years under the CRP program were grouped as young plots, while plots with 19 years under CRP management were considered old plots. Older plots have more disturbance events over time (mowing and weed control)... Surrounding forest vegetation is a mix of white and black spruce... balsam poplar... quaking aspen... and paper birch... The study area was cleared from 1979 to 1982 as part of Delta Agricultural Projects... Fields are farmed on a three-year rotation, with two years of spring barley or oats followed with one year of tilled fallow"
CMT -2 to -4ºC, MAP 250 to 300 mm

Life forms: ground beetles

Sites: 8

Sampling methods: quadrat,pitfall traps

Sample size: 6115 individuals

Years: 2006, 2007

Days: 281

Nets or traps: 40

Net or trap nights: 11240

Sampling comments: "Insects were collected using pitfall traps... The traps were placed in the field in a diamond pattern (approx. 1 m between each trap), using five traps within each of the eight plots, for a total of 40 traps... Traps were emptied and reset on a weekly basis in 2006 and 2007. Sampling dates were 6 June to 20 October 2006 and 8 May to 28 September 2007" (i.e., 137 days in 2006 and 144 in 2007)

Sample number: 2240

Contributor: John Alroy

Enterer: John Alroy

Created: 2016-08-28 18:18:16

Modified: 2016-08-28 08:18:16