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- Cyanobacteria (10)
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- Evaporative cooling efficiency (2)
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- Harmful algal bloom (2)
- Heart rate response (2)
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Articles 1 - 30 of 108
Full-Text Articles in Life Sciences
Microcystin Aids In Cold Temperature Acclimation: Differences Between A Toxic Microcystis Wildtype And Non-Toxic Mutant, Gwendolyn F. Stark, Robbie M. Martin, Laura E. Smith, Bofan Wei, Ferdi L. Hellweger, George S. Bullerjahn, R. Michael L. Mckay, Gregory L. Boyer, Steven W. Wilhelm
Microcystin Aids In Cold Temperature Acclimation: Differences Between A Toxic Microcystis Wildtype And Non-Toxic Mutant, Gwendolyn F. Stark, Robbie M. Martin, Laura E. Smith, Bofan Wei, Ferdi L. Hellweger, George S. Bullerjahn, R. Michael L. Mckay, Gregory L. Boyer, Steven W. Wilhelm
Great Lakes Institute for Environmental Research Publications
For Microcystis aeruginosa PCC 7806, temperature decreases from 26 °C to 19 °C double the microcystin quota per cell during growth in continuous culture. Here we tested whether this increase in microcystin provided M. aeruginosa PCC 7806 with a fitness advantage during colder-temperature growth by comparing cell concentration, cellular physiology, reactive oxygen species damage, and the transcriptomics-inferred metabolism to a non-toxigenic mutant strain M. aeruginosa PCC 7806 ΔmcyB. Photo-physiological data combined with transcriptomic data revealed metabolic changes in the mutant strain during growth at 19 °C, which included increased electron sinks and non-photochemical quenching. Increased gene expression was observed for …
A Colonial-Nesting Seabird Shows Limited Heart Rate Responses To Natural Variation In Threats Of Polar Bears, Erica A. Geldart, Oliver P. Love, Andrew F. Barnas, Christopher M. Harris, H. Grant Gilchrist, Christina A.D. Semeniuk
A Colonial-Nesting Seabird Shows Limited Heart Rate Responses To Natural Variation In Threats Of Polar Bears, Erica A. Geldart, Oliver P. Love, Andrew F. Barnas, Christopher M. Harris, H. Grant Gilchrist, Christina A.D. Semeniuk
Great Lakes Institute for Environmental Research Publications
Several predator-prey systems are in flux as an indirect result of climate change. In the Arctic, earlier sea-ice loss is driving polar bears (Ursus maritimus) onto land when many colonial nesting seabirds are breeding. The result is a higher threat of nest predation for birds with potential limited ability to respond. We quantified heart rate change in a large common eider (Somateria mollissima) breeding colony in the Canadian Arctic to explore their adaptive capacity to keep pace with the increasing risk of egg predation by polar bears. Eiders displayed on average higher heart rates from baseline when polar bears were …
Rapidly Developed, Optimized, And Applied Wastewater Surveillance System For Real-Time Monitoring Of Low-Incidence, High-Impact Mpox Outbreak, Chandler H. Wong, Zhihao Zhang, Walaa Eid, Julio Plaza-Diaz, Pervez Kabir, Shen Wan, Jian Jun Jia, Elisabeth Mercier, Ocean Thakali, Lakshmi Pisharody, Nada Hegazy, Sean E. Stephenson, Wanting Fang, Tram B. Nguyen, Nathan T. Ramsay, R. Michael Mckay, Ryland Corchis-Scott, Alex E. Mackenzie
Rapidly Developed, Optimized, And Applied Wastewater Surveillance System For Real-Time Monitoring Of Low-Incidence, High-Impact Mpox Outbreak, Chandler H. Wong, Zhihao Zhang, Walaa Eid, Julio Plaza-Diaz, Pervez Kabir, Shen Wan, Jian Jun Jia, Elisabeth Mercier, Ocean Thakali, Lakshmi Pisharody, Nada Hegazy, Sean E. Stephenson, Wanting Fang, Tram B. Nguyen, Nathan T. Ramsay, R. Michael Mckay, Ryland Corchis-Scott, Alex E. Mackenzie
Great Lakes Institute for Environmental Research Publications
Recent MPOX viral resurgences have mobilized public health agencies around the world. Recognizing the significant risk of MPOX outbreaks, large-scale human testing, and immunization campaigns have been initiated by local, national, and global public health authorities. Recently, traditional clinical surveillance campaigns for MPOX have been complemented with wastewater surveillance (WWS), building on the effectiveness of existing wastewater programs that were built to monitor SARS-CoV-2 and recently expanded to include influenza and respiratory syncytial virus surveillance in wastewaters. In the present study, we demonstrate and further support the finding that MPOX viral fragments agglomerate in the wastewater solids fraction. Furthermore, this …
A Combined Microscopy And Single-Cell Sequencing Approach Reveals The Ecology, Morphology, And Phylogeny Of Uncultured Lineages Of Zoosporic Fungi, Kensuke Seto, D. Rabern Simmons, C. Alisha Quandt, Thijs Frenken, Alden C. Dirks, Rebecca A. Clemons, Katelyn M. Mckindles, R. Michael L. Mckay, Timothy Y. James
A Combined Microscopy And Single-Cell Sequencing Approach Reveals The Ecology, Morphology, And Phylogeny Of Uncultured Lineages Of Zoosporic Fungi, Kensuke Seto, D. Rabern Simmons, C. Alisha Quandt, Thijs Frenken, Alden C. Dirks, Rebecca A. Clemons, Katelyn M. Mckindles, R. Michael L. Mckay, Timothy Y. James
Great Lakes Institute for Environmental Research Publications
Environmental DNA analyses of fungal communities typically reveal a much larger diversity than can be ascribed to known species. Much of this hidden diversity lies within undescribed fungal lineages, especially the early diverging fungi (EDF). Although these EDF often represent new lineages even at the phylum level, they have never been cultured, making their morphology and ecology uncertain. One of the methods to characterize these uncultured fungi is a single-cell DNA sequencing approach. In this study, we established a large data set of single-cell sequences of EDF by manually isolating and photographing parasitic fungi on various hosts such as algae, …
Heightened Heart Rate But Similar Flight Responses To Evolved Versus Recent Predators In An Arctic Seabird, Erica A. Geldart, Oliver P. Love, H. Grant Gilchrist, Andrew F. Barnas, Christopher M. Harris, Christina A.D. Semeniuk
Heightened Heart Rate But Similar Flight Responses To Evolved Versus Recent Predators In An Arctic Seabird, Erica A. Geldart, Oliver P. Love, H. Grant Gilchrist, Andrew F. Barnas, Christopher M. Harris, Christina A.D. Semeniuk
Great Lakes Institute for Environmental Research Publications
Predator-prey dynamics in the Arctic are being altered with changing sea ice phenology. The increasing frequency of predation on colonial nesting seabirds and their eggs by the polar bear (Ursus maritimus) is a consequence of bears shifting to terrestrial food resources through a shortened seal-hunting season. We examined antipredator responses in a colony of nesting Common Eiders (Somateria mollissima) on East Bay Island, Nunavut, Canada, which is exposed to established nest predators, such as arctic fox (Vulpes lagopus), but also to recent increases in polar bear nest predation due to the bears’ lost on-ice hunting opportunities. Given eiders’ limited eco-evolutionary …
Sulfolipid Substitution Ratios Of Microcystis Aeruginosa And Planktonic Communities As An Indicator Of Phosphorus Limitation In Lake Erie, Robbie M. Martin, Maddie K. Denney, Helena L. Pound, Justin D. Chaffin, George S. Bullerjahn, R. Michael L. Mckay, Arthur Zastepa, Katarina A. Jones, Hector F. Castro, Shawn R. Campagna, Steven W. Wilhelm
Sulfolipid Substitution Ratios Of Microcystis Aeruginosa And Planktonic Communities As An Indicator Of Phosphorus Limitation In Lake Erie, Robbie M. Martin, Maddie K. Denney, Helena L. Pound, Justin D. Chaffin, George S. Bullerjahn, R. Michael L. Mckay, Arthur Zastepa, Katarina A. Jones, Hector F. Castro, Shawn R. Campagna, Steven W. Wilhelm
Great Lakes Institute for Environmental Research Publications
Phosphorus (P) availability frequently limits primary production in lakes, influences the physiology of phytoplankton, shapes community structure, and can stimulate or constrain the formation of cyanobacterial blooms. Given the importance of P, numerous methods are available to assess P stress in phytoplankton communities. Marine phytoplankton are known to substitute sulfolipids for phospholipids in response to P limitation. We asked whether sulfolipid substitution might serve as an additional indicator of P stress in freshwater phytoplankton communities. The question was addressed using cultures of Microcystis aeruginosa, Lake Erie microcosms, and surveys of lipid profiles in Lake Erie during a Microcystis spp. bloom. …
Spatio-Temporal Connectivity Of The Aquatic Microbiome Associated With Cyanobacterial Blooms Along A Great Lake Riverine-Lacustrine Continuum, Sophie Crevecoeur, Thomas A. Edge, Linet Cynthia Watson, Susan B. Watson, Charles W. Greer, Jan J.H. Ciborowski, Ngan Diep, Alice Dove, Kenneth G. Drouillard, Thijs Frenken, Robert Michael Mckay, Arthur Zastepa, Jérôme Comte
Spatio-Temporal Connectivity Of The Aquatic Microbiome Associated With Cyanobacterial Blooms Along A Great Lake Riverine-Lacustrine Continuum, Sophie Crevecoeur, Thomas A. Edge, Linet Cynthia Watson, Susan B. Watson, Charles W. Greer, Jan J.H. Ciborowski, Ngan Diep, Alice Dove, Kenneth G. Drouillard, Thijs Frenken, Robert Michael Mckay, Arthur Zastepa, Jérôme Comte
Great Lakes Institute for Environmental Research Publications
Lake Erie is subject to recurring events of cyanobacterial harmful algal blooms (cHABs), but measures of nutrients and total phytoplankton biomass seem to be poor predictors of cHABs when taken individually. A more integrated approach at the watershed scale may improve our understanding of the conditions that lead to bloom formation, such as assessing the physico-chemical and biological factors that influence the lake microbial community, as well as identifying the linkages between Lake Erie and the surrounding watershed. Within the scope of the Government of Canada’s Genomics Research and Development Initiative (GRDI) Ecobiomics project, we used high-throughput sequencing of the …
Interactions Between Chytrids Cause Variable Infection Strategies On Harmful Algal Bloom Forming Species, Katelyn M. Mckindles, R. Michael L. Mckay, George S. Bullerjahn, Thijs Frenken
Interactions Between Chytrids Cause Variable Infection Strategies On Harmful Algal Bloom Forming Species, Katelyn M. Mckindles, R. Michael L. Mckay, George S. Bullerjahn, Thijs Frenken
Great Lakes Institute for Environmental Research Publications
Cyanobacteria have a great diversity of natural enemies, such as herbivores and pathogens, including fungal pathogens within the Chytridiomycota (chytrids). While these pathogens have been previously described on a select number of cyanobacterial hosts and are suspected to play a significant ecological role, little is understood about species interactions and how competition between parasites can affect epidemic development and bloom formation. Here, three Planktothrix agardhii isolates from Sandusky Bay, Lake Erie (OH, USA) were challenged in monoculture and polyculture against infection by three isolates (C1, C2, C10) of their obligate chytrid fungal pathogen, Rhizophydiales sp. The chytrid isolates were inoculated …
Comparative Metabolomic Analysis Of Exudates Of Microcystin-Producing And Microcystin-Free Microcystis Aeruginosa Strains, Yuan Zhou, Jun Xu, Hugh J. Macisaac, Robert Michael Mckay, Runbing Xu, Ying Pei, Yuanyan Zi, Jiaojiao Li, Yu Qian, Xuexiu Chang
Comparative Metabolomic Analysis Of Exudates Of Microcystin-Producing And Microcystin-Free Microcystis Aeruginosa Strains, Yuan Zhou, Jun Xu, Hugh J. Macisaac, Robert Michael Mckay, Runbing Xu, Ying Pei, Yuanyan Zi, Jiaojiao Li, Yu Qian, Xuexiu Chang
Great Lakes Institute for Environmental Research Publications
Cyanobacterial harmful algal blooms (cHABs) dominated by Microcystis aeruginosa threaten the ecological integrity and beneficial uses of lakes globally. In addition to producing hepatotoxic microcystins (MC), M. aeruginosa exudates (MaE) contain various compounds with demonstrated toxicity to aquatic biota. Previously, we found that the ecotoxicity of MaE differed between MC-producing and MC-free strains at exponential (E-phase) and stationary (S-phase) growth phases. However, the components in these exudates and their specific harmful effects were unclear. In this study, we performed untargeted metabolomics based on liquid chromatography-mass spectrometry to reveal the constituents in MaE of a MC-producing and a MC-free strain at …
Targeting A Free Viral Fraction Enhances The Early Alert Potential Of Wastewater Surveillance For Sars-Cov-2: A Methods Comparison Spanning The Transition Between Delta And Omicron Variants In A Large Urban Center, Liang Zhao, Qiudi Geng, Ryland Corchis-Scott, Robert Michael Mckay, John Norton, Irene Xagoraraki
Targeting A Free Viral Fraction Enhances The Early Alert Potential Of Wastewater Surveillance For Sars-Cov-2: A Methods Comparison Spanning The Transition Between Delta And Omicron Variants In A Large Urban Center, Liang Zhao, Qiudi Geng, Ryland Corchis-Scott, Robert Michael Mckay, John Norton, Irene Xagoraraki
Great Lakes Institute for Environmental Research Publications
Introduction: Wastewater surveillance has proven to be a valuable approach to monitoring the spread of SARS-CoV-2, the virus that causes Coronavirus disease 2019 (COVID-19). Recognizing the benefits of wastewater surveillance as a tool to support public health in tracking SARS-CoV-2 and other respiratory pathogens, numerous wastewater virus sampling and concentration methods have been tested for appropriate applications as well as their significance for actionability by public health practices. Methods: Here, we present a 34-week long wastewater surveillance study that covers nearly 4 million residents of the Detroit (MI, United States) metropolitan area. Three primary concentration methods were compared with respect …
Multi-Year Molecular Quantification And ‘Omics Analysis Of Planktothrix-Specific Cyanophage Sequences From Sandusky Bay, Lake Erie, Katelyn M. Mckindles, Makayla Manes, Michelle Neudeck, Robert Michael Mckay, George S. Bullerjahn
Multi-Year Molecular Quantification And ‘Omics Analysis Of Planktothrix-Specific Cyanophage Sequences From Sandusky Bay, Lake Erie, Katelyn M. Mckindles, Makayla Manes, Michelle Neudeck, Robert Michael Mckay, George S. Bullerjahn
Great Lakes Institute for Environmental Research Publications
Introduction: Planktothrix agardhii is a microcystin-producing cyanobacterium found in Sandusky Bay, a shallow and turbid embayment of Lake Erie. Previous work in other systems has indicated that cyanophages are an important natural control factor of harmful algal blooms. Currently, there are few cyanophages that are known to infect P. agardhii, with the best-known being PaV-LD, a tail-less cyanophage isolated from Lake Donghu, China. Presented here is a molecular characterization of Planktothrix specific cyanophages in Sandusky Bay. Methods and Results: Putative Planktothrix-specific viral sequences from metagenomic data from the bay in 2013, 2018, and 2019 were identified by two approaches: homology …
Actionable Wastewater Surveillance: Application To A University Residence Hall During The Transition Between Delta And Omicron Resurgences Of Covid-19, Ryland Corchis-Scott, Qiudi Geng, Abdul Monem Al Riahi, Amr Labak, Ana Podadera, Kenneth K.S. Ng, Lisa A. Porter, Yufeng Tong, Jess C. Dixon, Sherri Lynne Menard, Rajesh Seth, R. Michael Mckay
Actionable Wastewater Surveillance: Application To A University Residence Hall During The Transition Between Delta And Omicron Resurgences Of Covid-19, Ryland Corchis-Scott, Qiudi Geng, Abdul Monem Al Riahi, Amr Labak, Ana Podadera, Kenneth K.S. Ng, Lisa A. Porter, Yufeng Tong, Jess C. Dixon, Sherri Lynne Menard, Rajesh Seth, R. Michael Mckay
Great Lakes Institute for Environmental Research Publications
Wastewater surveillance has gained traction during the COVID-19 pandemic as an effective and non-biased means to track community infection. While most surveillance relies on samples collected at municipal wastewater treatment plants, surveillance is more actionable when samples are collected “upstream” where mitigation of transmission is tractable. This report describes the results of wastewater surveillance for SARS-CoV-2 at residence halls on a university campus aimed at preventing outbreak escalation by mitigating community spread. Another goal was to estimate fecal shedding rates of SARS-CoV-2 in a non-clinical setting. Passive sampling devices were deployed in sewer laterals originating from residence halls at a …
A Colonial-Nesting Seabird Shows No Heart-Rate Response To Drone-Based Population Surveys, Erica A. Geldart, Andrew F. Barnas, Christina A.D. Semeniuk, H. Grant Gilchrist, Christopher M. Harris, Oliver P. Love
A Colonial-Nesting Seabird Shows No Heart-Rate Response To Drone-Based Population Surveys, Erica A. Geldart, Andrew F. Barnas, Christina A.D. Semeniuk, H. Grant Gilchrist, Christopher M. Harris, Oliver P. Love
Great Lakes Institute for Environmental Research Publications
Aerial drones are increasingly being used as tools for ecological research and wildlife monitoring in hard-to-access study systems, such as in studies of colonial-nesting birds. Despite their many advantages over traditional survey methods, there remains concerns about possible disturbance effects that standard drone survey protocols may have on bird colonies. There is a particular gap in the study of their influence on physiological measures of stress. We measured heart rates of incubating female common eider ducks (Somateria mollissima) to determine whether our drone-based population survey affected them. To do so, we used heart-rate recorders placed in nests to quantify their …
Technoscience And The Modernization Of Freshwater Fisheries Assessment And Management, S. J. Cooke, M. F. Docker, N. E. Mandrak, N. Young, D. D. Heath, K. M. Jeffries, A. Howarth, J. W. Brownscombe, J. Livernois, C. A.D. Semeniuk, P. A. Venturelli, A. J. Danylchuk, R. J. Lennox, I. Jarić, A. T. Fisk, C. S. Vandergoot, J. R. Britton, A. M. Muir
Technoscience And The Modernization Of Freshwater Fisheries Assessment And Management, S. J. Cooke, M. F. Docker, N. E. Mandrak, N. Young, D. D. Heath, K. M. Jeffries, A. Howarth, J. W. Brownscombe, J. Livernois, C. A.D. Semeniuk, P. A. Venturelli, A. J. Danylchuk, R. J. Lennox, I. Jarić, A. T. Fisk, C. S. Vandergoot, J. R. Britton, A. M. Muir
Great Lakes Institute for Environmental Research Publications
Inland fisheries assessment and management are challenging given the inherent complexity of working in diverse habitats (e.g., rivers, lakes, wetlands) that are dynamic on organisms that are often cryptic and where fishers are often highly mobile. Yet, technoscience is offering new tools that have the potential to reimagine how inland fisheries are assessed and managed. So-called “technoscience” refers to instances in which science and technology unfurl together, offering novel ways of spurring and achieving meaningful change. This paper considers the role of technoscience and its potential for modernizing the assessment and management of inland fisheries. It first explores technoscience and …
Innovating Transcriptomics For Practitioners In Freshwater Fish Management And Conservation: Best Practices Across Diverse Resource-Sector Users, C. A.D. Semeniuk, K. M. Jeffries, T. Li, C. M. Bettles, S. J. Cooke, B. A. Dufour, E. A. Halfyard, J. W. Heath, K. Keeshig, N. E. Mandrak, A. J. Muir, L. Postma, D. D. Heath
Innovating Transcriptomics For Practitioners In Freshwater Fish Management And Conservation: Best Practices Across Diverse Resource-Sector Users, C. A.D. Semeniuk, K. M. Jeffries, T. Li, C. M. Bettles, S. J. Cooke, B. A. Dufour, E. A. Halfyard, J. W. Heath, K. Keeshig, N. E. Mandrak, A. J. Muir, L. Postma, D. D. Heath
Great Lakes Institute for Environmental Research Publications
Thriving freshwater fish populations contribute to people’s economic prosperity and wellbeing. Yet, freshwater fish populations are in critical condition around the globe. Most stressors to freshwater fishes, fisheries, and culture stem from habitat impacts, water-quality issues, and aquatic invasive species. Logistical difficulties of monitoring fish health are compounded by the limitations of conventional (capture-based) sampling methods, which provide only a temporal “snapshot” and generate data lacking in sensitivity and prognostic ability. Here, we propose an innovative genomics approach to develop a health toolkit that will allow resource-sector users to determine the health status of freshwater fishes, including their coping capacity, …
Metatranscriptomic Sequencing Of Winter And Spring Planktonic Communities From Lake Erie, A Laurentian Great Lake, Brittany N. Zepernick, Elizabeth R. Denison, Justin D. Chaffin, George S. Bullerjahn, Christa P. Pennacchio, Thijs Frenken, Daniel H. Peck, James T. Anderson, Derek Niles, Arthur Zastepa, R. L.Michael Mckay, Steven W. Wilhelm
Metatranscriptomic Sequencing Of Winter And Spring Planktonic Communities From Lake Erie, A Laurentian Great Lake, Brittany N. Zepernick, Elizabeth R. Denison, Justin D. Chaffin, George S. Bullerjahn, Christa P. Pennacchio, Thijs Frenken, Daniel H. Peck, James T. Anderson, Derek Niles, Arthur Zastepa, R. L.Michael Mckay, Steven W. Wilhelm
Great Lakes Institute for Environmental Research Publications
Previous reports suggest planktonic and under-ice winter microbial communities in Lake Erie are dominated by diatoms. Here, we report the assembled metatranscriptomes of 79 Lake Erie surface water microbial communities spanning both the winter (28 samples) and spring (51 samples) months over spatial, temporal, and climatic gradients in 2019 through 2020.
Metagenomics Of Wastewater Influent From Wastewater Treatment Facilities Across Ontario In The Era Of Emerging Sars-Cov-2 Variants Of Concern, Opeyemi U. Lawal, Linkang Zhang, Valeria R. Parreira, R. Stephen Brown, Charles Chettleburgh, Nora Dannah, Robert Delatolla, Kimberly A. Gilbride, Tyson E. Graber, Golam Islam, James Knockleby, Sean Ma, Hanlan Mcdougall, R. Michael Mckay, Aleksandra Mloszewska, Claire Oswald, Mark Servos, Megan Swinwood-Sky
Metagenomics Of Wastewater Influent From Wastewater Treatment Facilities Across Ontario In The Era Of Emerging Sars-Cov-2 Variants Of Concern, Opeyemi U. Lawal, Linkang Zhang, Valeria R. Parreira, R. Stephen Brown, Charles Chettleburgh, Nora Dannah, Robert Delatolla, Kimberly A. Gilbride, Tyson E. Graber, Golam Islam, James Knockleby, Sean Ma, Hanlan Mcdougall, R. Michael Mckay, Aleksandra Mloszewska, Claire Oswald, Mark Servos, Megan Swinwood-Sky
Great Lakes Institute for Environmental Research Publications
We report metagenomic sequencing analyses of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA in composite wastewater influent from 10 regions in Ontario, Canada, during the transition between Delta and Omicron variants of concern. The Delta and Omicron BA.1/BA.1.1 and BA.2-defining mutations occurring in various frequencies were reported in the consensus and subconsensus sequences of the composite samples.
Niches Of Marine Mammals In The European Arctic, K. M. Mackenzie, C. Lydersen, T. Haug, H. Routti, J. Aars, C. M. Andvik, K. Borgå, A. T. Fisk, S. Meier, M. Biuw, A. D. Lowther, U. Lindstrøm, K. M. Kovacs
Niches Of Marine Mammals In The European Arctic, K. M. Mackenzie, C. Lydersen, T. Haug, H. Routti, J. Aars, C. M. Andvik, K. Borgå, A. T. Fisk, S. Meier, M. Biuw, A. D. Lowther, U. Lindstrøm, K. M. Kovacs
Great Lakes Institute for Environmental Research Publications
The Arctic is warming rapidly, with concomitant sea ice losses and ecosystem changes. The animals most vulnerable to Arctic food web changes are long-lived and slow-growing such as marine mammals, which may not be able to adapt rapidly enough to respond to changes in their resource bases. To determine the current extent and sources of these resource bases, we examined isotopic and trophic niches for marine mammals in the European Arctic using skin carbon (δ13C) and nitrogen (δ 15N) stable isotope (SI) compositions from 10 species: blue, fin, humpback, minke, sperm and white whales, bearded and ringed seals, walruses and …
Bear Presence Attracts Avian Predators But Does Not Impact Lesser Snow Goose Daily Nest Attendance, Andrew F. Barnas, Brian J. Darby, David T. Iles, David N. Koons, Robert F. Rockwell, Christina A.D. Semeniuk, Susan N. Ellis-Felege
Bear Presence Attracts Avian Predators But Does Not Impact Lesser Snow Goose Daily Nest Attendance, Andrew F. Barnas, Brian J. Darby, David T. Iles, David N. Koons, Robert F. Rockwell, Christina A.D. Semeniuk, Susan N. Ellis-Felege
Great Lakes Institute for Environmental Research Publications
The presence of foraging bears in Arctic breeding bird colonies has been increasingly reported in the literature, and these may constitute disturbance events which cause incubating birds to leave their nest. Avian predators may associate with bears during such events, likely to capitalize on unattended nests in the presence of bears. Here, we estimated changes in daily nest attendance of lesser snow geese Anser caerulescens caerulescens in the presence of foraging bears, and estimated the association between foraging bears and avian predators. We predicted decreased nest attendance by geese on days with bears, and close associations between avian predators and …
Corrigendum To “Environmental And Life-History Factors Influence Inter-Colony Multidimensional Niche Metrics Of A Breeding Arctic Marine Bird” [Sci. Total Environ. 796 (2021) 148935] (Science Of The Total Environment (2021) 796, (S0048969721040079), (10.1016/J.Scitotenv.2021.148935)), Reyd A. Smith, David J. Yurkowski, Kyle J.L. Parkinson, Jérôme Fort, Holly L. Hennin, H. Grant Gilchrist, Keith A. Hobson, Mark L. Mallory, Paco Bustamante, Jóhannis Danielsen, Svend E. Garbus, Sveinn A. Hanssen, Jón Einar Jónsson, Christopher J. Latty, Ellen Magnúsdóttir, Børge Moe, Glen J. Parsons, Christian Sonne
Corrigendum To “Environmental And Life-History Factors Influence Inter-Colony Multidimensional Niche Metrics Of A Breeding Arctic Marine Bird” [Sci. Total Environ. 796 (2021) 148935] (Science Of The Total Environment (2021) 796, (S0048969721040079), (10.1016/J.Scitotenv.2021.148935)), Reyd A. Smith, David J. Yurkowski, Kyle J.L. Parkinson, Jérôme Fort, Holly L. Hennin, H. Grant Gilchrist, Keith A. Hobson, Mark L. Mallory, Paco Bustamante, Jóhannis Danielsen, Svend E. Garbus, Sveinn A. Hanssen, Jón Einar Jónsson, Christopher J. Latty, Ellen Magnúsdóttir, Børge Moe, Glen J. Parsons, Christian Sonne
Great Lakes Institute for Environmental Research Publications
The authors regret that the printed version of the above article contained an omission of an individual deserving of co-authorship. The correct and final version follows. The authors would like to apologise for any inconvenience caused. < Reyd A. Smith1⁎, David J. Yurkowski2, Kyle J.L. Parkinson1, Jérôme Fort3, Holly L. Hennin4, H. Grant Gilchrist4, Keith A. Hobson5, Mark L. Mallory6, Paco Bustamante3, Jóhannis Danielsen7, Svend E. Garbus8, Sveinn A. Hanssen9, Jón Einar Jónsson10, Christopher J. Latty11, Ellen Magnúsdóttir10, Børge Moe9, Glen J. Parsons12, Christian Sonne8, Grigori Tertitski13, and Oliver P. Love1> Windsor, Windsor, Ontario, Canada, N9B 3P4 2 Fisheries and Oceans Canada, Winnipeg, Manitoba, Canada, R3T 2N6 3 Littoral, Environnement et Sociétés (LIENSs), UMR 7266 CNRS – La Rochelle University, La Rochelle, France, FR-17000 4 Environment and Climate Change Canada, Ottawa, Ontario, Canada, K0A 1H0. 5 Western University, London, Ontario, Canada, N6A 3K7 6Acadia University, Wolfville, Nova Scotia, Canada, B4P 2R6 7 Faroe Marine Research …
Favorable Spring Conditions Can Buffer The Impact Of Winter Carryover Effects On A Key Breeding Decision In An Arctic-Breeding Seabird, Rolanda J. Steenweg, Glenn T. Crossin, Holly L. Hennin, H. Grant Gilchrist, Oliver P. Love
Favorable Spring Conditions Can Buffer The Impact Of Winter Carryover Effects On A Key Breeding Decision In An Arctic-Breeding Seabird, Rolanda J. Steenweg, Glenn T. Crossin, Holly L. Hennin, H. Grant Gilchrist, Oliver P. Love
Great Lakes Institute for Environmental Research Publications
The availability and investment of energy among successive life-history stages is a key feature of carryover effects. In migratory organisms, examining how both winter and spring experiences carryover to affect breeding activity is difficult due to the challenges in tracking individuals through these periods without impacting their behavior, thereby biasing results. Using common eiders Somateria mollissima, we examined whether spring conditions at an Arctic breeding colony (East Bay Island, Nunavut, Canada) can buffer the impacts of winter temperatures on body mass and breeding decisions in birds that winter at different locations (Nuuk and Disko Bay, Greenland, and Newfoundland, Canada; assessed …
A Systematic Review Of The Global Freshwater Mussel Restoration Toolbox, Roland E. Eveleens, Catherine Febria Dr
A Systematic Review Of The Global Freshwater Mussel Restoration Toolbox, Roland E. Eveleens, Catherine Febria Dr
Great Lakes Institute for Environmental Research Publications
1. Halting the global decline of freshwater mussels requires an improved understanding of the restoration approaches currently in use and the identification of shortcomings to inform the development of new ones. This article reviews published evaluations of restoration efforts on the ground and those identified or proposed in the literature. 2. This review found few reports of the effectiveness of restoration measures, and of those reported there was strong temporal and geographical bias. Reports were mostly recent and took place within mussel-diverse regions of the Global North (i.e. North America, Europe). 3. Efforts focused on population support encompassed relocation, translocation …
Investing In Monarch Conservation: Understanding Private Funding Dynamics, Rodrigo Solis-Sosa, Christina A.D. Semeniuk, Maxim Larrivée, Sean Cox
Investing In Monarch Conservation: Understanding Private Funding Dynamics, Rodrigo Solis-Sosa, Christina A.D. Semeniuk, Maxim Larrivée, Sean Cox
Great Lakes Institute for Environmental Research Publications
Non-profit environmental organizations (NGOs) rely heavily on external donors to fulfill their mandates. However, forecasting donations for long-term planning is an elusive task at best. The non-compulsory nature of donation requires NGOs to understand how donors’ attention and funding allocations change over time as conservation scenarios change and incorporate these insights into their budgeting plans. We hypothesize that an NGO can hinder its capacity to reach its conservation goals by neglecting its donor-NGO-natural system (DNNS), which is reactive to the socio-ecological context. To test our hypothesis, we compared the ecological outcomes derived from a budgeting strategy assuming donors have a …
Early Life Neonicotinoid Exposure Results In Proximal Benefits And Ultimate Carryover Effects, Thomas Zgirski, Pierre Legagneux, Olivier Chastel, Lyette Regimbald, Louise Prouteau, Audrey Le Pogam, Hélène Budzinski, Oliver P. Love, François Vézina
Early Life Neonicotinoid Exposure Results In Proximal Benefits And Ultimate Carryover Effects, Thomas Zgirski, Pierre Legagneux, Olivier Chastel, Lyette Regimbald, Louise Prouteau, Audrey Le Pogam, Hélène Budzinski, Oliver P. Love, François Vézina
Great Lakes Institute for Environmental Research Publications
Neonicotinoids are insecticides widely used as seed treatments that appear to have multiple negative effects on birds at a diversity of biological scales. Adult birds exposed to a low dose of imidacloprid, one of the most commonly used neonicotinoids, presented reduced fat stores, delayed migration and potentially altered orientation. However, little is known on the effect of imidacloprid on birds growth rate despite studies that have documented disruptive effects of low imidacloprid doses on thyroid gland communication. We performed a 2 × 2 factorial design experiment in Zebra finches, in which nestling birds were exposed to a very low dose …
Herd Immunity Drives The Epidemic Fadeout Of Avian Cholera In Arctic-Nesting Seabirds, Jacintha G.B. Van Dijk, Samuel A. Iverson, H. Grant Gilchrist, N. Jane Harms, Holly L. Hennin, Oliver P. Love, E. Isabel Buttler, Stephanie Lesceu, Jeffrey T. Foster, Mark R. Forbes, Catherine Soos
Herd Immunity Drives The Epidemic Fadeout Of Avian Cholera In Arctic-Nesting Seabirds, Jacintha G.B. Van Dijk, Samuel A. Iverson, H. Grant Gilchrist, N. Jane Harms, Holly L. Hennin, Oliver P. Love, E. Isabel Buttler, Stephanie Lesceu, Jeffrey T. Foster, Mark R. Forbes, Catherine Soos
Great Lakes Institute for Environmental Research Publications
Avian cholera, caused by the bacterium Pasteurella multocida, is a common and important infectious disease of wild birds in North America. Between 2005 and 2012, avian cholera caused annual mortality of widely varying magnitudes in Northern common eiders (Somateria mollissima borealis) breeding at the largest colony in the Canadian Arctic, Mitivik Island, Nunavut. Although herd immunity, in which a large proportion of the population acquires immunity to the disease, has been suggested to play a role in epidemic fadeout, immunological studies exploring this hypothesis have been missing. We investigated the role of three potential drivers of fadeout of avian cholera …
Drought At A Coastal Wetland Affects Refuelling And Migration Strategies Of Shorebirds, Alexandra M. Anderson, Christian Friis, Cheri L. Gratto-Trevor, Christopher M. Harris, Oliver P. Love, R. I.Guy Morrison, Sean W.J. Prosser, Erica Nol, Paul A. Smith
Drought At A Coastal Wetland Affects Refuelling And Migration Strategies Of Shorebirds, Alexandra M. Anderson, Christian Friis, Cheri L. Gratto-Trevor, Christopher M. Harris, Oliver P. Love, R. I.Guy Morrison, Sean W.J. Prosser, Erica Nol, Paul A. Smith
Great Lakes Institute for Environmental Research Publications
Droughts can affect invertebrate communities in wetlands, which can have bottom-up effects on the condition and survival of top predators. Shorebirds, key predators at coastal wetlands, have experienced widespread population declines and could be negatively affected by droughts. We explored, in detail, the effects of drought on multiple aspects of shorebird stopover and migration ecology by contrasting a year with average wet/dry conditions (2016) with a year with moderate drought (2017) at a major subarctic stopover site on southbound migration. We also examined the effects of drought on shorebird body mass during stopover across 14 years (historical: 1974–1982 and present-day: …
Timing Of Breeding Site Availability Across The North-American Arctic Partly Determines Spring Migration Schedule In A Long-Distance Neotropical Migrant, Jean François Lamarre, Gilles Gauthier, Richard B. Lanctot, Sarah T. Saalfeld, Oliver P. Love, Eric Reed, Oscar W. Johnson, Joe Liebezeit, Rebecca Mcguire, Mike Russell, Erica Nol, Laura Koloski, Felicia Sanders, Laura Mckinnon, Paul A. Smith, Scott A. Flemming, Nicolas Lecomte, Marie Andrée Giroux
Timing Of Breeding Site Availability Across The North-American Arctic Partly Determines Spring Migration Schedule In A Long-Distance Neotropical Migrant, Jean François Lamarre, Gilles Gauthier, Richard B. Lanctot, Sarah T. Saalfeld, Oliver P. Love, Eric Reed, Oscar W. Johnson, Joe Liebezeit, Rebecca Mcguire, Mike Russell, Erica Nol, Laura Koloski, Felicia Sanders, Laura Mckinnon, Paul A. Smith, Scott A. Flemming, Nicolas Lecomte, Marie Andrée Giroux
Great Lakes Institute for Environmental Research Publications
Long-distance migrants are under strong selection to arrive on their breeding grounds at a time that maximizes fitness. Many arctic birds start nesting shortly after snow recedes from their breeding sites and timing of snowmelt can vary substantially over the breeding range of widespread species. We tested the hypothesis that migration schedules of individuals co-occurring at the same non-breeding areas are adapted to average local environmental conditions encountered at their specific and distant Arctic breeding locations. We predicted that timing of breeding site availability (measured here as the average snow-free date) should explain individual variation in departure time from shared …
Environmental Studies Of Cyanobacterial Harmful Algal Blooms Should Include Interactions With The Dynamic Microbiome, Helena L. Pound, Robbie M. Martin, Cody S. Sheik, Morgan M. Steffen, Silvia E. Newell, Gregory J. Dick, R. Michael L. Mckay, George S. Bullerjahn, Steven W. Wilhelm
Environmental Studies Of Cyanobacterial Harmful Algal Blooms Should Include Interactions With The Dynamic Microbiome, Helena L. Pound, Robbie M. Martin, Cody S. Sheik, Morgan M. Steffen, Silvia E. Newell, Gregory J. Dick, R. Michael L. Mckay, George S. Bullerjahn, Steven W. Wilhelm
Great Lakes Institute for Environmental Research Publications
No abstract provided.
The Development And Application Of Targeted Edna Metabarcoding For Monitoring Freshwater And Marine Ais, Yueyang Wu
The Development And Application Of Targeted Edna Metabarcoding For Monitoring Freshwater And Marine Ais, Yueyang Wu
Electronic Theses and Dissertations
Species invasions are of critical concern due to their significant impacts on ecosystems and social economies, of which aquatic invasive species (AIS) often pose significant challenges in their control and management, notably because of difficulties in early detection. Environmental DNA (eDNA) provides a promising tool in advancing the detection of newly introduced aquatic organisms because of its high sensitivity and ease of use compared to traditional capture-based methods. Although eDNA-based methods are increasingly used worldwide, especially in aquatic ecosystems, most studies focus on a limited number of target species despite a pressing need for broad taxonomic monitoring for conservation and …
Snow Buntings Maintain Winter-Level Cold Endurance While Migrating To The High Arctic, Audrey Le Pogam, Ryan S. O’Connor, Oliver P. Love, Justine Drolet, Lyette Régimbald, Gabrielle Roy, Marie Pier Laplante, Dominique Berteaux, Andrew Tam, François Vézina
Snow Buntings Maintain Winter-Level Cold Endurance While Migrating To The High Arctic, Audrey Le Pogam, Ryan S. O’Connor, Oliver P. Love, Justine Drolet, Lyette Régimbald, Gabrielle Roy, Marie Pier Laplante, Dominique Berteaux, Andrew Tam, François Vézina
Great Lakes Institute for Environmental Research Publications
Arctic breeding songbirds migrate early in the spring and can face winter environments requiring cold endurance throughout their journey. One such species, the snow bunting (Plectrophenax nivalis), is known for its significant thermogenic capacity. Empirical studies suggest that buntings can indeed maintain winter cold acclimatization into the migratory and breeding phenotypes when kept captive on their wintering grounds. This capacity could be advantageous not only for migrating in a cold environment, but also for facing unpredictable Arctic weather on arrival and during preparation for breeding. However, migration also typically leads to declines in the sizes of several body components linked …