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ALAS Light-trap Collections, 2002 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. Traps were placed and harvested by ALAS staff Danilo Brenes, Ronald Vargas, and Maylin Paniagua.
During the first week of the first expedition two sites were chosen, and traps were placed in those two fixed sites each night. The two sites were within 100m of the refuge building. Site 1 was in second growth forest; site 2 was in primary forest. 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.
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 "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), 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.
Notes: primarily indicating which nights the blacklight failed to stay lit, due to battery or connection problems.
20/L/01/001 10-Feb-2002 No funciono
20/L/02/002 10-Feb-2002
20/L/01/003 11-Feb-2002
20/L/02/004 11-Feb-2002
20/L/01/005 12-Feb-2002
20/L/02/006 12-Feb-2002 No funciono
20/L/00/007 13-Feb-2002
20/L/00/008 13-Feb-2002
20/L/01/009 14-Feb-2002
20/L/02/010 14-Feb-2002
20/L/01/011 15-Feb-2002
20/L/02/012 15-Feb-2002
20/L/01/013 16-Feb-2002
20/L/02/014 16-Feb-2002
20/L/01/015 17-Feb-2002
20/L/02/016 17-Feb-2002 No funciono
20/L/01/017 18-Feb-2002
20/L/02/018 18-Feb-2002
20/L/01/019 19-Feb-2002
20/L/02/020 19-Feb-2002
20/L/01/021 20-Feb-2002
20/L/02/022 20-Feb-2002
20/L/01/023 21-Feb-2002
20/L/02/024 21-Feb-2002
20/L/01/025 22-Feb-2002
20/L/02/026 22-Feb-2002
20/L/01/027 11-Mar-2002
20/L/02/028 11-Mar-2002
20/L/01/029 12-Mar-2002
20/L/02/030 12-Mar-2002
20/L/01/031 13-Mar-2002
20/L/02/032 13-Mar-2002
20/L/01/033 14-Mar-2002
20/L/02/034 14-Mar-2002
20/L/01/035 15-Mar-2002
20/L/02/036 15-Mar-2002
20/L/01/037 16-Mar-2002
20/L/02/038 16-Mar-2002
20/L/01/039 17-Mar-2002
20/L/02/040 17-Mar-2002
20/L/01/041 18-Mar-2002
20/L/02/042 18-Mar-2002
20/L/01/043 19-Mar-2002 No funciono
20/L/02/044 19-Mar-2002
20/L/01/045 20-Mar-2002
20/L/02/046 21-Mar-2002
20/L/00/047 21-Mar-2002 Noche con mucha lluvia
20/L/01/048 22-Mar-2002
20/L/00/049 22-Mar-2002 No funciono
20/L/01/050 10-Apr-2002
20/L/02/051 10-Apr-2002
20/L/01/052 12-Apr-2002
20/L/02/053 12-Apr-2002
20/L/01/054 13-Apr-2002
20/L/02/055 13-Apr-2002
20/L/01/056 14-Apr-2002
20/L/02/057 14-Apr-2002
20/L/00/058 15-Apr-2002
Trampa colocada en un claro grande al lado izquierdo de la quebrada
cerca de Refugio saliendo hacia el Barva.
20/L/02/059 15-Apr-2002
20/L/01/060 16-Apr-2002
20/L/02/061 16-Apr-2002
20/L/01/062 17-Apr-2002
20/L/02/063 17-Apr-2002
20/L/01/064 18-Apr-2002
20/L/02/065 18-Apr-2002
20/L/01/066 19-Apr-2002
20/L/02/067 19-Apr-2002
20/L/01/068 20-Apr-2002
20/L/02/069 20-Apr-2002
20/L/01/070 21-Apr-2002
20/L/02/071 21-Apr-2002
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