@article{perreault_forrester_lindner_jusino_fraver_banik_mladenoff_2023, title={Linking wood-decay fungal communities to decay rates: Using a long-term experimental manipulation of deadwood and canopy gaps}, volume={62}, ISSN={["1878-0083"]}, DOI={10.1016/j.funeco.2022.101220}, abstractNote={Decomposition transfers carbon (C) from detrital organic matter to soil and atmospheric pools. In forested ecosystems, deadwood accounts for a large proportion of the detrital C pool and is primarily decomposed by wood-inhabiting fungi (WIF). Deadwood reductions linked to forest harvesting may alter WIF richness and composition, thus indirectly influencing the persistence of deadwood and its contribution to C and nutrient cycling. Forest structure was enhanced via canopy gap creation and coarse woody debris (CWD) addition that mimic natural disturbance by windfall within a deciduous northern hardwood forest (Wisconsin, USA) to examine its effect on deadwood-associated biodiversity and function. Experimental sugar maple (Acer saccharum) logs were sampled, for DNA extraction, ten years after placement to determine the assembly of fungal community composition and its relationship to wood decay rates. Our findings suggest that the WIF community responded to gap disturbance by favoring species able to persist under more extreme microclimates caused by gaps. CWD addition under closed canopy tended to favor a different species assemblage from gap creation treatments and the control, where canopy was undisturbed and CWD was not added. This was presumably due to consistent microclimatic conditions and the abundance of CWD substrates for host specialists. Fungal OTU richness was significantly and inversely related to CWD decay rates, likely due to competition for resources. In contrast, fungal OTU composition was not significantly related to CWD decay rates, canopy openness or CWD addition amounts. Our study site represents a diverse fungal community in which complex interactions among wood-inhabiting organisms and abiotic factors are likely to slow CWD decomposition, which suggests that maintaining a biodiverse and microsite-rich ecosystem may enhance the capacity for C storage within temperate forests.}, journal={FUNGAL ECOLOGY}, author={Perreault, Lili and Forrester, Jodi A. and Lindner, Daniel L. and Jusino, Michelle A. and Fraver, Shawn and Banik, Mark T. and Mladenoff, David J.}, year={2023}, month={Apr} }
 @article{perreault_forrester_mladenoff_lewandowski_2021, title={Deadwood Reduces the Variation in Soil Microbial Communities Caused by Experimental Forest Gaps}, volume={24}, ISSN={["1435-0629"]}, DOI={10.1007/s10021-021-00624-w}, number={8}, journal={ECOSYSTEMS}, author={Perreault, Lili and Forrester, Jodi A. and Mladenoff, David J. and Lewandowski, Tera E.}, year={2021}, month={Dec}, pages={1928–1943} }
 @article{perreault_forrester_mladenoff_gower_2021, title={Linking deadwood and soil GHG fluxes in a second growth north temperate deciduous forest (Upper Midwest USA)}, volume={8}, ISSN={["1573-515X"]}, DOI={10.1007/s10533-021-00839-y}, journal={BIOGEOCHEMISTRY}, author={Perreault, Lili and Forrester, Jodi A. and Mladenoff, David J. and Gower, Stith T.}, year={2021}, month={Aug} }
 @article{perreault_forrester_wurzburger_mladenoff_2020, title={Emergent properties of downed woody debris in canopy gaps: A response of the soil ecosystem to manipulation of forest structure}, volume={151}, ISSN={["1879-3428"]}, DOI={10.1016/j.soilbio.2020.108053}, abstractNote={Abstract Natural forest disturbance events can influence soil biogeochemical processes in two ways - by creating downed woody debris (DWD; fallen tree boles or branches) and by creating canopy gaps that alter forest microclimate. DWD represents a substrate for microbial growth and a persistent store of carbon and nutrients, but microbial activity is also sensitive to temperature and moisture. We studied the potential interaction of DWD and canopy gaps on soil microbial processes, and wondered if microclimatic conditions resulting from the manipulation of forest structure would be enough to inhibit production, thereby altering a critical ecosystem process. Gaps and DWD (>10 cm diameter) were added to a maturing, even-aged, second-growth northern hardwood forest (the Flambeau Experiment; N Wisconsin, USA) to enhance structural complexity and promote key ecosystem processes typically associated with late-successional forests. We investigated the influence of DWD and gaps on soil microbial community composition, extracellular enzyme activity and soil characteristics. Soils were sampled near intermediately and highly decayed DWD and 2 m away from DWD (control) in gaps and closed canopy a decade after manipulation. DWD decomposition influenced the surrounding soil differentially depending on decay class and canopy condition. Mean C- and P-potential extracellular enzyme activities (BG, BX and AP) were enhanced near highly decayed DWD in gaps. The relative abundance of bacteria (actinomycete, anaerobic, gram-negative and gram-positive) remained constant in gaps but decreased from May to August in closed canopy. In gaps, soil total exchangeable cations increased by 34.6%, available phosphorus by 152% and fungal to bacterial ratios by 23.3% but temperatures decreased by 3.42% suggesting that canopy condition continues to affect soil properties and microbial processes a decade after gap creation. These results highlight the contribution of DWD to the forest floor and the influence of decaying wood characteristics on belowground ecosystems critical to future forest productivity. Retaining or adding heterogeneously distributed DWD of varying decay status may be essential to maintain ecosystem functions associated with nutrient cycling and microbial community dynamics in managed forests.}, journal={SOIL BIOLOGY & BIOCHEMISTRY}, author={Perreault, Lili and Forrester, Jodi A. and Wurzburger, Nina and Mladenoff, David J.}, year={2020}, month={Dec} }