ALAS Pitfall Collections, 2002 Expeditions
Transects of 25 baited pitfall traps were established, with about 5m between traps. Transects were placed along trails near the refuge building. Plastic drinking cups were embedded in the ground, flush with the ground surface, and the bait was perched above the cup. Cups were 7cm wide at the top and 9.5cm deep. Human dung was used as bait. Traps were maintained and harvested daily over a period of 3 days. Samples were pooled across days and pitfall traps to obtain one sample per transect. Samples were stored in whirlpac bags of 95% ethanol. The samples are listed below.
The data fields, in order, are:
Collection code: a unique code for a collection. The "20" indicates that it is from the 2000m site (Refugio Vara Blanca), the "TF" indicates it is a pitfall sample, the following two numbers are the transect number.
Collection date: date of first day's collection, in format day-month-year.
End collection date: date of third day's collection, in format day-month-year.
20/TF/01 16-Feb-2002 18-Feb-2002
20/TF/02 19-Feb-2002 21-Feb-2002
20/TF/03 12-Mar-2002 14-Mar-2002
20/TF/04 18-Mar-2002 20-Mar-2002
20/TF/05 12-Apr-2002 15-Apr-2002
20/TF/06 17-Apr-2002 19-Apr-2002