Search Results - "Robert L. Bradley"

A trait-based framework to understand life history of mycorrhizal fungi by Chagnon, Pierre-Luc, Bradley, Robert L, Maherali, Hafiz, Klironomos, John N

“…•Data on arbuscular mycorrhizal (AM) fungal functional traits is reviewed.•Grime's C-S-R framework is used to organize AM fungal species in life history…”
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Trait‐based partner selection drives mycorrhizal network assembly by Chagnon, Pierre‐Luc, Bradley, Robert L, Klironomos, John N

“…Plants and their microbial symbionts are often found to interact non‐randomly in nature, but we have yet to understand the mechanisms responsible for such…”
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Using ecological network theory to evaluate the causes and consequences of arbuscular mycorrhizal community structure by Chagnon, Pierre‐Luc, Bradley, Robert L., Klironomos, John N.

“…See also the Commentary by Öpik and Moora…”
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Lowbush blueberry fruit yield and growth response to inorganic and organic N-fertilization when competing with two common weed species by Marty, Charles, Lévesque, Josée-Anne, Bradley, Robert L, Lafond, Jean, Paré, Maxime C

“…Inorganic N fertilizers are commonly used in commercial blueberry fields; however, this form of N can favor increased weed species' growth, which can…”
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Nine years of in situ soil warming and topography impact the temperature sensitivity and basal respiration rate of the forest floor in a Canadian boreal forest by Marty, Charles, Piquette, Joanie, Morin, Hubert, Bussières, Denis, Thiffault, Nelson, Houle, Daniel, Bradley, Robert L, Simpson, Myrna J, Ouimet, Rock, Paré, Maxime C

“…The forest floor of boreal forest stores large amounts of organic C that may react to a warming climate and increased N deposition. It is therefore crucial to…”
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Contrasting impacts of two weed species on lowbush blueberry fertilizer nitrogen uptake in a commercial field by Marty, Charles, Lévesque, Josée-Anne, Bradley, Robert L, Lafond, Jean, Paré, Maxime C

“…Numerous studies have speculated that lowbush blueberry (Vaccinium angustifolium) is less efficient than weed species at taking up inorganic nitrogen (N)…”
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The spread of Kalmia angustifolia on black spruce forest cutovers contributes to the spatial heterogeneity of soil resources by Joanisse, Gilles D, Bradley, Robert L, Preston, Caroline M

“…Kalmia angustifolia is a boreal ericaceous shrub that can rapidly spread on black spruce forest cutovers in eastern Canada, where CPRS (i.e. Cutting with…”
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Physico-chemical and functional characteristics of soil charcoal produced at five different temperatures by Bergeron, Sylvain Pelletier, Bradley, Robert L., Munson, Alison, Parsons, William

“…The intensity of boreal forest wildfires is highly variable, such that natural wood charcoal can be produced at different peak temperatures. This, in turn, may…”
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Endogeic earthworms lower net methane production in saturated riparian soils by Kernecker, Maria, Whalen, Joann K., Bradley, Robert L.

“…Methane (CH 4 ) emissions from soils are erratic, the typical pattern being long periods of imperceptible emissions punctuated by short periods of high CH 4…”
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Mechanisms by Which Pre-Commercial Thinning Increases Black Spruce Growth in Different Climates and Soil Types by Amy Wotherspoon, Robert L. Bradley, Daniel Houle, Stéphane Tremblay, Martin Barrette, Krista Reicis

“…In the province of Québec (Canada), pre-commercial thinning (PCT) is a common silvicultural practice applied to young black spruce (Picea mariana (Mill.) BSP)…”
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Non-native earthworms increase the abundance and diet quality of a common woodland salamander in its northern range by Scott, Trevor, Bradley, Robert L., Bourgault, Patrice

“…Non-native earthworms found in Eastern Canada substantially affect soil properties and plant diversity, but less is known about their impacts on higher faunal…”
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Managing Understory Vegetation for Maintaining Productivity in Black Spruce Forests: A Synthesis within a Multi-Scale Research Model by Gilles Joanisse, Alison D. Munson, François Hébert, Richard A. Fournier, Osvaldo Valeria, Robert L. Bradley, Yves Bergeron, Pierre Grondin, Nicole J. Fenton, Nelson Thiffault, David Paré

“…Sustainable management of boreal ecosystems involves the establishment of vigorous tree regeneration after harvest. However, two groups of understory plants…”
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New insights into the drivers of moss‐associated nitrogen fixation and cyanobacterial biomass in the eastern Canadian boreal forest by Renaudin, Marie, Blasi, Charlotte, Bradley, Robert L., Bellenger, Jean‐Philippe

“…Moss‐associated cyanobacteria nitrogen (N2‐) fixation can contribute to support moss growth and constitutes a major source of new N in boreal forest…”
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Litter Controls Earthworm-Mediated Carbon and Nitrogen Transformations in Soil from Temperate Riparian Buffers by Kernecker, Maria, Bradley, Robert L., Whalen, Joann

“…Nutrient cycling in riparian buffers is partly influenced by decomposition of crop, grass, and native tree species litter. Nonnative earthworms in riparian…”
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Reconsidering Gabriel Kolko: A Half-Century Perspective by Bradley, Robert L., Donway, Roger

“…This year, 2013, Gabriel Kolko's The Triumph of Conservatism marks its fiftieth anniversary, and thus it is an opportune time to reconsider his thesis and the…”
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More evidence that anaerobic oxidation of methane is prevalent in soils: Is it time to upgrade our biogeochemical models? by Gauthier, Mathieu, Bradley, Robert L., Šimek, Miloslav

“…Estimating future fluxes of CH4 between land and atmosphere requires well-conceived process-based biogeochemical models. Current models do not represent the…”
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Mycorrhizal network assembly in a community context: The presence of neighbours matters by Chagnon, Pierre‐Luc, Bradley, Robert L., Klironomos, John N., Mariotte, Pierre

“…Understanding the factors and mechanisms driving the structure of ecological networks is a challenge for community ecologists. Notably, it remains unclear…”
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Trait-based and phylogenetic filtering of arbuscular mycorrhizal fungal communities under long-term agricultural practices by Chagnon, Pierre-Luc, Bradley, Robert L., Lafond, Jean, Paré, Maxime C., Penaud, Valentin

“…Aims We explored how long-term agricultural practices affect arbuscular mycorrhizal (AM) fungal traits and community structure. Methods We sampled soil and…”
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Mechanical scarification can reduce competitive traits of boreal ericaceous shrubs and improve nutritional site quality by Reicis, Krista, Bradley, Robert L, Joanisse, Gilles, Thiffault, Nelson, Scott, Dalton, Parsons, William F J

“…Abstract   Ericaceous shrubs often interfere with the growth of black spruce seedlings on regenerating forest sites in Eastern Canada. Mechanical site…”
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Clearcutting and Deer Browsing Intensity Interact in Controlling Nitrification Rates in Forest Floor by Dufresne, Mathieu, Bradley, Robert L., Tremblay, Jean-Pierre, Poulin, Monique, Pellerin, Stéphanie

“…Major forest disturbance such as clearcutting may increase nitrification rates in the forest floor, but the magnitude of this NO3- flush varies among different…”
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