Publications
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Rhizophagy cycle: An oxidative process in plants for nutrient extraction from symbiotic microbes
In this paper, we describe a mechanism for the transfer of nutrients from symbiotic microbes (bacteria and fungi) to host plant roots that we term the ‘rhizophagy cycle.’ In the rhizophagy cycle, microbes alternate between a root intracellular endophytic phase and a free-living soil phase. Microbes acquire soil nutrients in the free-living soil phase; nutrients are extracted through exposure to ho
Authors
James F. White, Kathryn L. Kingsley, Satish Kumar Verma, Kurt P. Kowalski
What it is to be established: policy and management implications for non-native and invasive species
Management of invasive species, whether prevention, population reduction, or eradication, requires assessment of the invasive species’ population status and an assessment of the probability of success of management options. Perceptions of a species’ permanence in an environment or lack thereof frequently drives how limited time, financial, and personnel resources are allocated to such efforts. Lan
Authors
Patrick Kočovský, Rochelle Sturtevant, James Schardt
Ratio of mercury concentration to PCB concentration varies with sex of white sucker (Catostomus commersonii)
The whole-fish total mercury (Hg) concentrations were determined in 25 mature female and 26 mature male white suckers (Catostomus commersonii) caught during their spawning run in the Kewaunee River, a tributary to Lake Michigan. The age of each fish was estimated using thin-sectioned otoliths, and total length (TL) and weight were determined for each fish. When adjusted for the effect of age, male
Authors
Charles P. Madenjian, Andrew L. Stevens, Martin A. Stapanian, David P. Krabbenhoft, John F. DeWild, Jacob M. Ogorek, William H. Edwards, Lynn M. Ogilvie, Peter B. McIntyre
Hatchery strain contributions to emerging wild lake trout populations in Lake Huron
Recent assessments indicate the emergence of naturally produced lake trout (Salvelinus namaycush) recruitment throughout Lake Huron in the North American Laurentian Great Lakes (>50% of fish <7 years). Because naturally produced fish derived from different stocked hatchery strains are unmarked, managers cannot distinguish strains contributing to natural recruitment. We used 15 microsatellite loci
Authors
Kim T. Scribner, Iyob Tsehaye, Travis O. Brenden, Wendylee Stott, Jeannette Kanefsky, James R. Bence
“Asian carp” is societally and scientifically problematic. Let's replace it
Bighead Carp Hypophthalmichthys nobilis, Black Carp Mylopharyngodon piceus, Grass Carp Ctenopharyngodon idella, and Silver Carp H. molitrix are considered invasive species in North America and Europe. In North America, they are typically referred to collectively as “Asian carp”, a reference to their native range. The category “Asian carp” fails to acknowledge the cultural value and the ecological
Authors
Patrick Kočovský, Duane Chapman, Song S. Qian
Modeling framework to estimate spawning and hatching locations of pelagically-spawned eggs
Identifying spawning and hatching locations is vital to controlling invasive fish and conserving imperiled fish, which can be difficult for pelagically-spawning species with semi-buoyant eggs. In freshwater systems, this reproductive strategy is common among cyprinid species, such as Chinese carp species currently threatening the Great Lakes. Following the confirmation that one of these species, G
Authors
Holly S. Embke, Patrick Kočovský, Tatiana Garcia, Christine M. Mayer, Song S. Qian
Real-time nowcasting of microbiological water quality at recreational beaches: A wavelet and artificial neural network-based hybrid modeling approach
The number of beach closings caused by bacterial contamination has continued to rise in recent years, putting beachgoers at risk of exposure to contaminated water. Current approaches predict levels of indicator bacteria using regression models containing a number of explanatory variables. Data-based modeling approaches can supplement routine monitoring data and provide highly accurate short-term f
Authors
Juan Zhang, Han Qiu, Xiaoyu Li, Jie Niu, Meredith B. Nevers, Xiaonong Hu, Mantha S. Phanikumar
Diets of endangered silver chub (Macrhybopsis storeriana, Kirtland, 1844) in Lake Erie and implications for recovery
Silver chub (Macrhybopsis storeriana, Kirtland, 1844) is a native Cyprinid in Lake Erie, one of the Laurentian Great Lakes of North America. It is listed as endangered by the US state of New York and Canada, which has a recovery plan, and as special concern by the state of Michigan. Silver chub faces a potential threat to recovery from control efforts for invasive Grass carp (Ctenopharyngodon idel
Authors
Patrick Kočovský
Lateral and vertical distribution of downstream migrating juvenile sea lamprey
Sea lamprey is considered an invasive and nuisance species in the Laurentian Great Lakes, Lake Champlain, and the Finger Lakes of New York and is a major focus of control efforts. Currently, management practices focus on limiting the area of infestation using barriers to block migratory adults, and lampricides to kill ammocoetes in infested tributaries. No control efforts currently target the down
Authors
V. Alex Sotola, Scott M. Miehls, Lee G. Simard, J. Ellen Marsden
A simple, cost-effective emitter for controlled release of fish pheromones: development, testing, and application to management of the invasive sea lamprey
Semiochemicals that elicit species-specific attraction or repulsion have proven useful in the management of terrestrial pests and hold considerable promise for control of nuisance aquatic species, particularly invasive fishes. Because aquatic ecosystems are typically large and open, use of a semiochemical to control a spatially dispersed invader will require the development of a cost-effective emi
Authors
C. Michael Wagner, James E. Hanson, Trevor D. Meckley, Nicholas S. Johnson, Jason D. Bals
Cyanobacteria reduce quagga mussel (Dreissena rostriformis bugensis) spawning and fertilization success
Quagga mussels (Dreissena rostriformis bugensis) are highly fecund broadcast spawners invasive to freshwaters of North America and western Europe. We hypothesized that environmental cues from phytoplankton can trigger gamete release in quagga mussels. Nutritious algae may stimulate dreissenid spawning, but less palatable food, such as bloom-forming cyanobacteria, could be a hindrance. The objectiv
Authors
Anna G. Boegehold, Nicholas S. Johnson, Jeffrey L. Ran, Donna R. Kashian
Protection from UV light is an evolutionarily conserved feature of the haematopoietic niche
Haematopoietic stem and progenitor cells (HSPCs) require a specific microenvironment, the haematopoietic niche, which regulates HSPC behaviour. The location of this niche varies across species, but the evolutionary pressures that drive HSPCs to different microenvironments remain unknown. The niche is located in the bone marrow in adult mammals, whereas it is found in other locations in non-mammali
Authors
Friedrich G. Kapp, Julie R. Perlin, Elliott J. Hagedorn, John M. Gansner, Daniel E. Schwarz, Lauren A. O'Connell, Nicholas S. Johnson, Chris Amemiya, David E. Fisher, Ute Wolfle, Eirini Trompouki, Charlotte M. Niemeyer, Wolfgang Driever, Leonard I. Zon