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The microarthropod, beating and wood-rearing programmes plus focal taxa:

The microarthropod, beating and wood-rearing programmes plus focal taxa: Oribatida, Tenebrionidae, Clavicornia, Isopoda, Myriapoda & Curculionoidea (minus Scolytinae). 1 Neville Winchester University of Victoria, Victoria, CA (tundrast@uvvm.uvic.ca)

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The microarthropod, beating and wood-rearing programmes plus focal taxa:

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  1. The microarthropod, beating and wood-rearing programmes plus focal taxa: Oribatida, Tenebrionidae, Clavicornia, Isopoda, Myriapoda & Curculionoidea (minus Scolytinae) 1Neville Winchester University of Victoria, Victoria, CA (tundrast@uvvm.uvic.ca) 2Kevin Jordan University of Victoria, Victoria, CA 3Lukas Cizek Czech Academy of Sciences, Ceske Budejovice, CZ (cizek@entu.cas.cz) 4Héctor Barrios University of Panama, Panama, PA (hbarrios@ancon.up.ac.pa) Frode Ødegaard Norwegian Institute for Nature Research, Trondheim, NO Gianfranco Curletti Museum of Carmagnola, Carmagnola, IT Yves Basset Smithsonian Tropical Research Institute, Panama, PA 1 2 3 4

  2. Berlese-Tullgren for ground and suspended soils Winchester, Jordan

  3. The Berlese-Tullgren programme Estimates the abundance of microarthropods in ground and suspended soils - extraction during 48 hours 8 sites surveyed with cores: 48 cores at each location (24 litter and 24 canopy) At each site: 3 trees, on which 8 cores were obtained from the canopy, 8 cores from the litter (3 x 8 x2 = 48 cores per site) October 2003: 8 sites, 384 cores: 192 litter, 172 canopy May 2004: 3 sites, 144 cores: 72 litter, 72 canopy (+independent site) Total 528 samples (cores)

  4. Abundance in ground/suspended soils at one site in October 2003

  5. Abundance in ground/suspended soils at three sites in May 2004

  6. Focal taxa: Oribatida (Winchester, Behan-Pelletier) About 18,000 specimens processed Morphotyping on-going: 45 families, ca. 115 species (about half or more undescribed); Galumnidae undoable Specimens not databased yet Completion of taxonomical work: September 2005? Preliminary results: Significantly greater evenness and richness on the ground when compared to the canopy. Main reason, San Lorenzo does not support rich accumulations of 'suspended' soils associated with epiphytes. Many species new to science.

  7. In 2003, wood baits were obtained from ca. 15 plant species These baits were set in the sun/shade of the understorey and canopy and left for about one month Baits were used as beating samples (Ødegaard presentation) Baits were then collected and caged for rearing wood-borers Rearing of wood-borers Cizek, Ødegaard, Curletti, Barrios

  8. Results Curiously, the experiment failed as virtually no wood-borers or parasitoids were reared Lukas Cizek is currently in Panama (Jul-Aug 2005) to re-set the experiment

  9. Focal taxa: Tenebrionidae, Clavicornia, Isopoda & Myriapoda (Cizek) Expected completion: end of the year 2005 New genus and species of Tenebrionidae

  10. The IBISCA beating programme and focal taxa: Curculionoidea Héctor Barrios University of Panama, Panama, PA Frode Ødegaard Norwegian Institute for Nature Research

  11. The IBISCA beating programme Estimates the insect activity on folliage Total: 320 samples and 3,156 individuals collected Sorted by higher categories (orders and families) with focal taxa extracted Collecting info. about plants from which the sample were obtained

  12. Beating was done during 09h:00-13h:00 hours For each of 8 sites in October 2003: 160 samples in the understorey 160 samples in the upper canopy

  13. Replication of two sites (crane) in: Febr/March, May and Oct/Nov 2004 For each of 2 crane sites in 2004 20 samples in the understorey 20 samples in the upper canopy

  14. Canopy Raft - 3 Canopy Raft – 1 Ikos Bubble – 2 Bubble – 1 Crane - 3 Crane – 2 Crane - 1 # individuals

  15. # individuals

  16. The IBISCA beating programme - Summary • 100% of the samples are processed • All material (focal taxa) was • extracted and distributed • All processed material is databased • No analyses and writing has been • performed yet

  17. The IBISCA focal taxa: Curculionoidea (Coleoptera) Héctor Barrios University of Panama, Panama

  18. ca 15,000 individuals collected • 100% of material processed • 90% of material sorted to morphospecies • at least 594 morphospecies • ca 60% of morphospecies • identified at the generic level • ca 25% of morphospecies • identified at the specific level

  19. Conclusions • Suspended soils species-poor as compared to ground soils • Studies of all focal taxa discussed here are on-going and are • expected to be completed towards the end of 2005 • Area for replication with the beating programme was small (20x20m) • and hence total no. of individuals collected was low • Depending on the group studied, many species new for Science

  20. Acknowledgements: our sponsors and the IBISCA team Part of IBISCA participants during the field replication of May 2004

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