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Araneae of Canada.

Robb Bennett1, Gergin Blagoev2, Claudia Copley1

  • 1Department of Entomology, Natural History Section, Royal British Columbia Museum, 675 Belleville Street, Victoria, British Columbia, V8W 9W2, Canada Royal British Columbia Museum Victoria Canada.

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|February 5, 2019
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Summary
This summary is machine-generated.

Canada

Keywords:
AraneaeBINsBiota of CanadaDNA barcodingbiodiversity assessmentchecklistclassificationfaunisticsspiders

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Area of Science:

  • Arachnology and biodiversity research.
  • Faunistics and taxonomic studies.
  • Molecular and DNA barcoding techniques.

Background:

  • Canadian spider inventories have seen gradual growth since 1979.
  • Significant regional increases in species checklists highlight improved survey efforts.
  • Advances in systematics and molecular techniques have reshaped spider classification.

Purpose of the Study:

  • To document the current state of Canadian spider species inventory.
  • To analyze trends in species discovery and regional distribution.
  • To assess the impact of DNA barcoding on spider taxonomy.

Main Methods:

  • Compilation of national and regional spider checklists.
  • Analysis of taxonomic and systematic revisions.
  • Application of DNA barcoding for species identification and discovery.

Main Results:

  • The Canadian spider inventory reached 1477 species in 45 families by 2018.
  • Regional checklists show dramatic increases, e.g., British Columbia (339%).
  • 92% of species are DNA barcoded, revealing numerous cryptic species and undescribed morpho-species.

Conclusions:

  • Canada's spider diversity is significantly underestimated.
  • Continued research, especially in under-sampled regions and using molecular tools, is crucial.
  • The national spider species count may exceed 1800, with many cryptic species yet to be identified.