Counts of arthropods.

A sampling unit was made of a pitfall to collect arthropods in a field of organic winter wheat, near Wimborne, Dorset, UK in 1996. The sampling units were located on a 9 x 7 rectangular grid at intervals of 30 m. There were six sampling dates.

Usage

arthropods

Format

A data frame with 378 rows and 4 variables:

[, 1:2]	x,y	Grid spatial coordinates.
[, 3:4]	xm,ym	Metric spatial coordonates.
[, 5]	t	Sampling date. 1: 7 Jun, 2: 14 Jun, 3: 21 Jun, 4: 28 Jun, 5: 5 Jul, 6: 12 Jul 1996.
[, 6]	i	Counts of arthropods.

Source

Holland JM, Winder L, Perry JN. 1999. Arthropod prey of farmland birds: Their spatial distribution within a sprayed field with and without buffer zones. Aspects of Applied Biology 54: 53-60.