A5040546194- Forest Ecology and Biodiversity Studies
- Forest Management and Policy
- Fire effects on ecosystems
- Peatlands and Wetlands Ecology
- Forest Insect Ecology and Management
- Lichen and fungal ecology
- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Ecology and Vegetation Dynamics Studies
- Coastal wetland ecosystem dynamics
- Soil and Water Nutrient Dynamics
- Rangeland and Wildlife Management
- Environmental Conservation and Management
- Mycorrhizal Fungi and Plant Interactions
- Constructed Wetlands for Wastewater Treatment
- Cassava research and cyanide
Michigan Technological University
2014-2019
University of Minnesota
2009-2019
Minnesota Department of Natural Resources
2019
University of Georgia
2018
Abstract Mangroves of the semiarid Caatinga region northeastern Brazil are being rapidly converted to shrimp pond aquaculture. To determine ecosystem carbon stocks and potential greenhouse gas emissions from this widespread land use, we measured eight mangrove forests three ponds in Acaraú Jaguaribe watersheds Ceará state, Brazil. The were paired with adjacent intact mangroves ascertain losses conversion. mean total stock tropical landscape was 413 ± 94 Mg C/ha. There highly significant...
The invasive emerald ash borer (EAB) (Agrilus planipennis Fairmaire (Coleoptera: Buprestidae)) is a significant threat to biodiversity and ecosystem processes in North American forests. Of particular concern the fate of Fraxinus nigra (black ash), which frequently dominant canopy species across much its range. To investigate potential vegetation response loss this foundation species, EAB-induced mortality was simulated F. dominated wetlands Upper Michigan, USA. No growth residual overstory...
Abstract Forested wetlands dominated by black ash ( Fraxinus nigra ) are currently threatened the rapid expansion of exotic emerald borer (EAB; Agrilus planipennis , Coleoptera: Buprestidae) in North America, and very little is known about hydrology ecology wetlands. The ecohydrological response forested following a canopy disturbance has potential to affect critical ecosystem services, degree this effect may largely depend on wetland's hydrogeological setting. main objectives study were...
The contribution of coarse woody debris (CWD) to forest carbon (C) and nitrogen (N) dynamics is poorly quantified. This study quantified total C N content in CWD estimated the decomposition rates at different decay stages a 70-year-old naturally regenerated Korean red pine (Pinus densiflora S. et Z.). concentration varied among species classes (from 0.15% 0.82%), exhibited decreasing pattern C:N ratios with increasing class. Total amounts 4.84 Mg ha−1, dominated by logs (45.4%) class III...
Emerald ash borer (EAB) continues to spread across North America, infesting native trees and changing the forested landscape. Black wetland forests are severely affected by EAB. As black provide integral ecosystem services, alternative approaches maintain forest cover on landscape needed. We implemented simulated EAB infestations in depressional wetlands Ottawa National Forest Michigan mimic short-term long-term effects of These were planted with 10 tree species 2013. Based initial results...
Black ash (Fraxinus nigra Marsh.) exhibits canopy dominance in regularly inundated wetlands, suggesting advantageous adaptation. mortality due to emerald borer (Agrilus planipennis Fairmaire) will alter composition and site hydrology. Retention of these forested wetlands requires understanding black ash’s ecohydrologic role. Our study examined the response sap flux water level atmospheric drivers three codominant species: ash, red maple (Acer rubrum L.), yellow birch (Betula alleghaniensis...
The rapid and extensive expansion of emerald ash borer (EAB) in North America since 2002 may eliminate most existing stands, likely affecting critical ecosystem services associated with water carbon cycling. To our knowledge, no studies have evaluated the coupled response black (Fraxinus nigra Marsh.) wetland tables, soil temperatures, gas fluxes to an EAB infestation. Water table position, temperature, CO2 CH4 were monitored nine depressional headwater wetlands northern Michigan. An...
The use of silvicultural systems that emulate aspects natural disturbance regimes, including severities and scales, has been advocated as a strategy for restoring conserving forest biodiversity in forests managed wood products. Nonetheless, key information gaps remain regarding the impacts these approaches on wide range taxa, understory plant species. We investigated 6- or 7-year response herbaceous vegetation to disturbance-based harvest northern hardwood Northeastern Minnesota. These...