Abstract
Increases in stand-replacing wildfires in the western USA have widespread implications for ecosystem carbon (C) cycling, in part because the decomposition of trees killed by fire can be a long-term source of CO2 to the atmosphere. Knowledge of the composition and function of decay fungi communities may be important to understanding how wildfire alters C cycles. We assessed the effects of stand-replacing wildfires on the community structure of wood-inhabiting fungi along a 32-yr wildfire chronosequence. Fire was associated with low species richness for up to 4 yr and altered species composition relative to unburned forest for the length of the chronosequence. A laboratory incubation demonstrated that species varied in their capacity to decompose wood; Hypocrea lixii, an indicator of the most recent burn, caused the lowest decomposition rate. Our results show that stand-replacing wildfires have long-term effects on fungal communities, which may have consequences for wood decomposition and C cycling.
Original language | English (US) |
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Pages (from-to) | 192-204 |
Number of pages | 13 |
Journal | Fungal Ecology |
Volume | 6 |
Issue number | 3 |
DOIs | |
State | Published - Jun 2013 |
Keywords
- C cycling
- Fungal diversity
- Fungal species richness
- ITS1F-ITS4
- Molecular methods
- Mycelial isolation
- Wood decomposition
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Ecology
- Ecological Modeling
- Plant Science