pitfall trap

pitfall trap

a trap (e.g. a jar sunk into the ground) into which mobile animals may fall and from which they are unable to escape.
References in periodicals archive ?
Each pitfall trap consisted of a 120-ml collection cup (60 mm wide and 65 mm deep) filled with a 50/50 mixture of water and propylene glycol placed within a second cup.
The center array was further modified by having only one pitfall trap in the corner of the southwest quadrant, due to the presence of large tree roots.
On each collecting date, pitfall trap contents were returned to the laboratory at Midwestern State University for identification.
Additional sampling, consisting of 12 pitfall trap arrays scattered throughout the 88-ha Elliot reserve, was used to estimate the ant fauna for the entire reserve.
One pitfall trap was placed at each sampling point in the vineyard, with 20 traps per farm in Rio Grande do Sul and 12 per farm in Santa Catarina.
Sites for pitfall trap pairs were at least 80 m apart.
During the spring and summer seasons, we added pitfall trap arrays to our sampling design to better target shrews (Soricidae).
In order to characterize the differences in the spider community each pitfall trap was treated as an independent replicate and samples were pooled as either pre- or post-treatment and adjusted to per-trapping-week.
Few drops of 5% liquid detergent were added to each pitfall trap to lower the surface tension.
The spectacular and unique pitcher plant (Sarracenia purpurea) is our sole representative species belonging to the pitfall trap family.
It is of an elephant pitfall trap, dug along a remote bush pathway.