Publications

The molecular diversity of dissolved organic matter in forest streams across central Canadian boreal watersheds
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Soil communities following clearcut and salvage harvest have different early successional dynamics compared with post-wildfire patterns
Understanding the impacts of harvest and subsequent silviculture practices at stand scales on the below-ground biota, and their …
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Response of stream habitat and microbiomes to spruce budworm defoliation: New considerations for outbreak management
Defoliation by eastern spruce budworm is one of the most important natural disturbances in Canadian boreal and hemi‐boreal forests with …
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Connecting forest soil properties with ecosystem services: Toward a better use of digital soil maps—A review
The soil supports many ecosystem services (ES) essential to human well‐being. Rapid developments in digital soil mapping (DSM) allow …
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2023 Blueprint for Forest Carbon Science in Canada
Predicting present and future habitats using LiDAR to integrate research and monitoring with landscape analyses
Managed forests contribute to both economic and non-timber values, but the ecological role of managed, including planted, forests to …
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Effects of spruce budworm defoliation on in-stream algal production and carbon use by food webs
Insect defoliation is a widespread cause of forest disturbance in Canada, and it has the potential to alter terrestrial carbon …
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Restoring forest ecosystem services through trait-based ecology
Restoration is moving towards a more mechanistic approach that emphasizes restoration of ecosystem services. Trait-based approaches …
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Long-term trend and drivers of inter-annual variability of surface water dissolved organic carbon concentration in a forested watershed
Dissolved organic carbon (DOC) concentrations have increased over the past few decades in surface waters across Europe and North …
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Stable isotope analysis provides novel insights for measuring lake ecosystem recovery following acidification
Unstable and simplified freshwater food webs impair the resilience of Canadian fisheries facing environmental stressors. This study …
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Copper-Induced Chemosensory Impairment is Reversed by a Short Depuration Period in Northern Clearwater Crayfish (Faxonius propinquus)
Crayfish rely on their chemosensory system for many essential behaviours including finding food, finding mates, and to recognize …
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Soil carbon pools and fluxes following the regreening of a mining and smelting degraded landscape
Increasing forest cover by regreening mining and smelting degraded landscapes provides an opportunity for global carbon (C) …
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Logging disrupts the ecology of molecules in headwater streams
Global demand for wood products is increasing forest harvest. One understudied consequence of logging is that it accelerates …
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Increasing spruce budworm defoliation increases catchment discharge in conifer forests
Forest insect outbreaks cause significant reductions in the forest canopy through defoliation and tree mortality that modify the …
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Universal microbial reworking of dissolved organic matter along soil gradients
Soils are losing increasing amounts of carbon annually to freshwaters as dissolved organic matter (DOM), which, if degraded, can offset …
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Watershed characteristics and chemical properties govern methyl mercury concentrations within headwater streams of boreal forests in Ontario, Canada
Methyl mercury (MeHg) concentrations in boreal headwater streams are influenced by complex natural processes and disturbances such as …
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Recovery of Smelter-Impacted Peat and Sphagnum Moss: a Microbial Perspective
Peatlands store approximately one-half of terrestrial soil carbon and one-tenth of non-glacial freshwater. Some of these important …
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Integrating terrestrial and aquatic ecosystems to constrain estimates of land-atmosphere carbon exchange
In this Perspective, we put forward an integrative framework to improve estimates of land-atmosphere carbon exchange based on the …
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Understanding the effects of forest management on streams and rivers: A synthesis of research conducted in New Brunswick (Canada) 2014–2018
Forests play a major role in maintaining healthy streams and in providing ecosystem services such as clean drinking water, …
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Viruses direct carbon cycling in lake sediments under global change
Global change is altering the vast amount of carbon cycled by microbes between land and freshwater, but how viruses mediate this …
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Tebufenozide has limited direct effects on simulated aquatic communities
The use of insecticides to control undesirable pest species in forestry has undergone a shift from broad spectrum to narrow spectrum …
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Long-term stream chemistry response to harvesting in a northern hardwood forest watershed experiencing environmental change
Previous studies of harvest impacts on stream chemistry from deciduous forests with seasonal snow cover have shown variable responses …
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Effects of forest management on mercury bioaccumulation and biomagnification along the river continuum
Forest management can alter the mobilization of mercury (Hg) into headwater streams and its conversion to methylmercury (MeHg), the …
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Long-Term Trends in pCO2 in Lake Surface Water Following Rebrowning
Over the last 40 years, dissolved organic carbon (DOC) has been increasing in freshwater across many boreal regions. The extent to …
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Molecular correlations of dissolved organic matter with inorganic mercury and methylmercury in Canadian boreal streams
The molecular composition of dissolved organic matter (DOM) is increasingly recognized as fundamentally important to mercury transport …
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Are There Longitudinal Effects of Forest Harvesting on Carbon Quality and Flow and Methylmercury Bioaccumulation in Primary Consumers of Temperate Stream Networks?
Forest harvesting affects dissolved organic matter (DOM) and aqueous mercury inputs as well as the food web structure in …
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Spring coherence in dissolved organic carbon export dominates total coherence in Boreal Shield forested catchments
The wide range of forested landscapes in boreal environments store and cycle substantial amounts of carbon, although the capacity of …
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Universal microbial reworking of dissolved organic matter along environmental gradients
Soils are losing increasing amounts of carbon annually to freshwaters as dissolved organic matter (DOM), which, if degraded, can …
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Acidification recovery in a changing climate: Observations from thirty-five years of stream chemistry monitoring in forested headwater catchments at the Turkey Lakes Watershed …
Long-term ecosystem studies are valuable for understanding integrated ecosystem response to global changes in atmospheric deposition …
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Forest defoliator outbreaks alter nutrient cycling in northern waters
Insect defoliators alter biogeochemical cycles from land into receiving waters by consuming terrestrial biomass and releasing biolabile …
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Elevated Allochthony in Stream Food Webs as a Result of Longitudinal Cumulative Effects of Forest Management
The river continuum concept (RCC) predicts a downstream shift in the reliance of aquatic consumers from terrestrial to aquatic carbon …
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hydroweight: Inverse distance-weighted rasters and landscape attributes
hydroweight calculates landscape attributes based on distances to waterbodies — areas nearby have more influence than those farther …
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hydroweight: Inverse distance-weighted rasters and landscape attributes
Patterns and trends in lake concentrations of dissolved organic carbon in a landscape recovering from environmental degradation and widespread acidification
Concentrations of dissolved organic carbon (DOC) have increased in lakes throughout North America and Europe over the last three …
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Turkey Lakes Watershed, Ontario, Canada: 40 years of interdisciplinary whole-ecosystem research
The Turkey Lakes Watershed (TLW) study is a federal, interdepartmental study established in 1979 to investigate the effects of acid …
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Forest management impacts on stream integrity at varying intensities and spatial scales: Do biological effects accumulate spatially?
The effects of forest harvesting on headwaters are quite well understood, yet our understanding of whether impacts accumulate or …
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Forest management impacts on stream integrity at varying intensities and spatial scales: Do abiotic effects accumulate spatially?
Though effects of forest harvesting on small streams are well documented, little is known about the cumulative effects in downstream …
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Variables affecting resource subsidies from streams and rivers to land and their susceptibility to global change stressors
Stream and river ecosystems provide subsidies of emergent adult aquatic insects and other resources to terrestrial food webs, and this …
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Lake characteristics influence how methanogens in littoral sediments respond to terrestrial litter inputs
Shallow lake sediments harbor methanogen communities that are responsible for large amounts of CH 4 flux to the atmosphere. These …
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The ecobiomics project: Advancing metagenomics assessment of soil health and freshwater quality in Canada
Transformative advances in metagenomics are providing an unprecedented ability to characterize the enormous diversity of microorganisms …
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Variations in terrestrial arthropod DNA metabarcoding methods recovers robust beta diversity but variable richness and site indicators
Terrestrial arthropod fauna have been suggested as a key indicator of ecological integrity in forest systems. Because phenotypic …
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Chemical and microbial diversity covary in fresh water to influence ecosystem functioning
Invisible to the naked eye lies a tremendous diversity of organic molecules and organisms that make major contributions to important …
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Studying ecosystems with DNA metabarcoding: lessons from biomonitoring of aquatic macroinvertebrates
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A Conceptual Framework for the Spruce Budworm Early Intervention Strategy: Can Outbreaks be Stopped?
The spruce budworm, Choristoneura fumiferana, Clem., is the most significant defoliating pest of boreal balsam fir (Abies balsamea (L.) …
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Microbiome functioning depends on individual and interactive effects of the environment and community structure
How ecosystem functioning changes with microbial communities remains an open question in natural ecosystems. Both present-day …
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Ten-year assessment of the 100 priority questions for global biodiversity conservation
In 2008, a group of conservation scientists compiled a list of 100 priority questions for the conservation of the world’s …
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Plant litter type dictates microbial communities responsible for greenhouse gas production in amended lake sediments
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Feasting on terrestrial organic matter: Dining in a dark lake changes microbial decomposition
Boreal lakes are major components of the global carbon cycle, partly because of sediment-bound heterotrophic microorganisms that …
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Climate-driven shifts in sediment chemistry enhance methane production in northern lakes
Freshwater ecosystems are a major source of methane (CH 4), contributing 0.65 Pg (in CO 2 equivalents) yr- 1 towards global carbon …
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Optical Properties of Dissolved Organic Matter and Their Relation to Mercury Concentrations in Water and Biota Across a Remote Freshwater Drainage Basin
Dissolved organic matter (DOM) includes an array of carbon-based compounds that vary in size and structure and have complex …
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