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Permafrost thaw and intense thermokarst activity decreases abundance of stream benthic macroinvertebrates

Dates

Year
2016

Citation

Chin, K. S., Lento, J., Culp, J. M., Lacelle, D., and Kokelj, S. V., 2016, Permafrost thaw and intense thermokarst activity decreases abundance of stream benthic macroinvertebrates: Global Change Biology, p. n/a-n/a.

Summary

Intensification of permafrost thaw has increased the frequency and magnitude of large permafrost slope disturbances (mega slumps) in glaciogenic terrain of northwestern Canada. Individual thermokarst disturbances up to 40 ha in area have made large volumes of previously frozen, highly weatherable fine-grained sediments available for leaching and transport to adjacent streams, significantly increasing sediment and solute loads in these systems. To test the effects of this climate-sensitive disturbance regime on the ecology of Arctic streams, we explored the relationship between physical and chemical variables and benthic macroinvertebrate communities in disturbed and undisturbed stream reaches in the Peel Plateau in the Northwest Territories, [...]

Contacts

Attached Files

Communities

  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
NWBLCC20160627

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1111/gcb.13225
ISSN http://sciencebase.gov/vocab/identifierScheme 1365-2486

Citation Extension

citationTypeJournal Article
journalGlobal Change Biology
parts
typeNotes
value11833
typePages
valuen/a-n/a

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