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ALAS Light-trap Collections, 2001 Expeditions
Entotech light traps were used to obtain a series of one-night blacklight samples. These traps use a 8 watt blacklight tube surrounded by 3 transparent panes, all perched over a funnel on top of a bucket. The bucket has an internal smaller funnel and screen to allow water drainage from rain. Unlike the La Selva sampling program, the traps were not surrounded by a larger wire cage to exclude large insects. Crumpled paper towels and egg cartons were placed in the bottom of the bucket, and a cloth bag of potassium or sodium cyanide suspended inside. The traps were placed before dusk and harvested the next morning. A light sensor turned the light on at dusk and off at dawn.
During the first week of the first expedition, Marc Epstein ran traps in several locations. At the end of his visit, two sites were chosen, and traps were placed in those two fixed sites each night (see map). Samples are listed below.
Abundant collecting was also carried out at a mercury vapor lamp. A sheet was tacked to the side of the refuge building, and the lamp suspended in front of the sheet. The lamp was usually operated from nightfall until 9 or 10pm, and collectors hand-picked from the sheet. No quantitative sampling structure was applied to mercury vapor lamp collecting. Each collector obtained their own specimens and assigned their own collection codes.
The data fields, in order, are:
Collection code: a unique code for a collection. The "11" indicates that it is from the 1070m site, the "L" indicates it is a light-trap sample, the following two numbers are the trap location ("00" for various trial locations, "01" and "02" for the two fixed locations; see map), and the final three-digit number is a serial number beginning with 001 for the first sample, and ending with 070 for the last.
Collection date: day sample was harvested (morning following trap placement), in format day-month-year.
Collector: person taking the sample, Marc Epstein for early samples, ALAS staff for later samples.
11/L/00/001 9-Feb-2001 M. Epstein
11/L/00/002 10-Feb-2001 M. Epstein
11/L/00/003 10-Feb-2001 M. Epstein
11/L/00/004 11-Feb-2001 M. Epstein
11/L/00/005 11-Feb-2001 M. Epstein
11/L/00/006 12-Feb-2001 M. Epstein
11/L/00/007 12-Feb-2001 M. Epstein
11/L/00/008 13-Feb-2001 M. Epstein
11/L/00/009 13-Feb-2001 M. Epstein
11/L/01/010 18-Mar-2001 ALAS
11/L/01/011 19-Mar-2001 ALAS
11/L/02/012 19-Mar-2001 ALAS
11/L/01/013 20-Mar-2001 ALAS
11/L/02/014 20-Mar-2001 ALAS
11/L/01/015 21-Mar-2001 ALAS
11/L/02/016 21-Mar-2001 ALAS
11/L/01/017 10-Apr-2001 ALAS
11/L/02/018 10-Apr-2001 ALAS
11/L/01/019 11-Apr-2001 ALAS
11/L/02/020 11-Apr-2001 ALAS
11/L/01/021 12-Apr-2001 ALAS
11/L/02/022 12-Apr-2001 ALAS
11/L/01/023 13-Apr-2001 ALAS
11/L/02/024 13-Apr-2001 ALAS
11/L/01/025 14-Apr-2001 ALAS
11/L/02/026 14-Apr-2001 ALAS
11/L/01/027 15-Apr-2001 ALAS
11/L/02/028 15-Apr-2001 ALAS
11/L/01/029 16-Apr-2001 ALAS
11/L/02/030 16-Apr-2001 ALAS
11/L/01/031 19-Apr-2001 ALAS
11/L/02/032 21-Apr-2001 ALAS
11/L/01/033 21-Apr-2001 ALAS
11/L/02/034 15-Mar-2001 ALAS
11/L/01/035 16-Mar-2001 ALAS
11/L/02/036 16-Mar-2001 ALAS
11/L/01/037 17-Mar-2001 ALAS
11/L/02/038 17-Mar-2001 ALAS
11/L/01/039 18-Mar-2001 ALAS
11/L/02/040 18-Mar-2001 ALAS
11/L/01/041 19-Mar-2001 ALAS
11/L/02/042 19-Mar-2001 ALAS
11/L/01/043 20-Mar-2001 ALAS
11/L/02/044 20-Mar-2001 ALAS
11/L/01/045 21-Mar-2001 ALAS
11/L/02/046 21-Mar-2001 ALAS
11/L/01/047 10-Apr-2001 ALAS
11/L/02/048 10-Apr-2001 ALAS
11/L/01/049 11-Apr-2001 ALAS
11/L/02/050 11-Apr-2001 ALAS
11/L/01/051 12-Apr-2001 ALAS
11/L/02/052 12-Apr-2001 ALAS
11/L/01/053 13-Apr-2001 ALAS
11/L/02/054 13-Apr-2001 ALAS
11/L/01/055 14-Apr-2001 ALAS
11/L/02/056 14-Apr-2001 ALAS
11/L/01/057 15-Apr-2001 ALAS
11/L/02/058 15-Apr-2001 ALAS
11/L/01/059 16-Apr-2001 ALAS
11/L/02/060 16-Apr-2001 ALAS
11/L/01/061 17-Apr-2001 ALAS
11/L/02/062 17-Apr-2001 ALAS
11/L/01/063 18-Apr-2001 ALAS
11/L/02/064 18-Apr-2001 ALAS
11/L/01/065 19-Apr-2001 ALAS
11/L/02/066 19-Apr-2001 ALAS
11/L/01/067 20-Apr-2001 ALAS
11/L/02/068 20-Apr-2001 ALAS
11/L/01/069 21-Apr-2001 ALAS
11/L/02/070 21-Apr-2001 ALAS
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