Jornada Basin LTER Research

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Dataset: Arthropod Pitfall Traps-II in 4x4 grid at LTER II NPP sites

   File description including attribute definitions: data_JornadaStudy_008_npp_arthropod_pitfall_trap_1988_1994
   Original Investigator: David Lightfoot
   Data contact: John Anderson
   Duration: 1988 - 1994
   Dataset ID: 210008002

Data for arthropods captured in pitfall traps on LTER II consumer plots. Data includes order, family, genus, species, and number.

   Additional information:

Jornada LTER II consumer plots (located at T-WEST, T- EAST, M-RABB, M-WELL, G-IBPE, G-BASN, C-SAND, C-CALI, and C- GRAV sites)


field data sheets


A grid of 16 pitfall traps is located at each consumer plot. Each trap is 40 cm deep and contains an inner plastic container and funnel. A ceramic tile is placed over each trap. For a 2-week period each month, from 16 June 1989 to 23 August 1991, the tiles were raised on one side, and the traps are checked every 3 days in summer and once a week in winter. For the period post-August 1991, the traps are opened for 2 consecutive weeks on a quarterly basis (Feb, May, Aug, Oct). The arthropods in the inner containers are all combined to one container for each plot, brought to the lab, preserved, and sorted to taxa. Non-ground dwelling arthropods are released in the field. Large long-lived arthropods such as tarantulas are recorded and released in the field. See PITFALL.PRO file for detailed protocol.


16JUN89 - 23AUG91: 2-week period every month Post-August 1991: 2-week period quarterly (Feb, May, Aug, Oct)

   Quality Assurance

Data is entered from field data sheets using LOTUS 123 add-in called D.A.V.E. which is a data entry and verification program.