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Mini-winkler extractor and pitfall trap as complementary methods to sample formicidae.

F H O Silva1, J H C Delabie, G B dos Santos

  • 1Instituto de Biociências, Univ Federal de Mato Grosso, Av. Fernando Corrêa da Costa, n.2367, Boa Esperança, 78060-900, Cuiabá, MT, Brasil. fabio.silva@svc.ifmt.edu.br

Neotropical Entomology
|August 17, 2013
PubMed
Summary

The mini-Winkler extractor and pitfall traps are effective, complementary methods for sampling ant diversity in the Poconé Pantanal. These techniques provide distinct data, enhancing comprehensive ant community inventories.

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Area of Science:

  • Ecology
  • Entomology
  • Biodiversity research

Background:

  • Ants are crucial components of terrestrial ecosystems, influencing soil properties and plant communities.
  • Accurate ant diversity assessment is vital for understanding ecosystem health and function.
  • Sampling methods must be evaluated for their efficacy in diverse habitats like the Pantanal.

Purpose of the Study:

  • To evaluate the mini-Winkler extractor and pitfall traps as sampling methods for ant communities.
  • To assess the complementarity of these methods in the phytophysiognomy mosaic of the Poconé Pantanal.
  • To provide insights for effective ant diversity inventories in Neotropical regions.

Main Methods:

  • Field study conducted in the Poconé Pantanal, Mato Grosso, Brazil, across a 25 km² area.

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  • Utilized 30 transects with 5 collection points each, totaling 150 sampling points.
  • Employed both mini-Winkler extractors and pitfall traps at each sampling point.

    • Main Results:

    • Mini-Winkler extractor yielded 1,088 individuals (20 genera, 55 species); pitfall traps collected 2,726 individuals (24 genera, 48 species).
    • Significant differences in species richness were observed between the two methods.
    • Principal coordinates analysis revealed distinct species groups sampled by each method, indicating complementarity.

    Conclusions:

    • Mini-Winkler extractors and pitfall traps are appropriate and complementary for ant diversity inventories.
    • Combining these methods enhances the comprehensiveness of ant community sampling in the Poconé Pantanal.
    • The study highlights the importance of method selection for accurate biodiversity assessments.