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Responses of stream benthic macroinvertebrates to fire

Author(s): G. Wayne Minshall
Year Published: 2003
Description:

Synthesis of published research on the responses of stream benthic macroinvertebrates to fire in western United States indicates a consistent pattern of response that can guide resource management and future research. Direct effects of fire generally are minor or indiscernible. Indirect effects, resulting primarily from increased rates of runoff and channel alteration, have the greatest impacts on macroinvertebrate community metrics and foodweb responses. Postfire effects are variable in time and space, but in smaller size streams (first to fourth order) that are otherwise undisturbed, changes generally are restricted to the first 5-10 years following fire and are associated with the more intense burns (crown fires with =50% of the catchment involved). In unfragmented habitats, initially supporting intact, functioning stream ecosystems, recovery from fire appears to be relatively rapid and to contribute to enhanced aquatic productivity and biodiversity. However, in poorly managed watersheds and those subjected to indiscriminate salvage logging, impacts from fire are expected to be greater and recovery of the macroinvertebrate communities and stream ecosystems more protracted.

Citation: Minshall, G. W. 2003. Responses of stream benthic macroinvertebrates to fire. Forest Ecology and Management. 178(1-2): 155-161.
Topic(s): Fire Effects, Ecological - Second Order, Aquatic Life, Vegetation, Water, Management Approaches, Post-fire Management, Salvage Logging
Ecosystem(s): Riparian woodland/shrubland
Document Type: Book or Chapter or Journal Article
NRFSN number: 7964
FRAMES RCS number: 4695
Record updated: Nov 1, 2017