Search Results - "Gray, Derek K."

The rise and fall of plankton: long-term changes in the vertical distribution of algae and grazers in Lake Baikal, Siberia by Hampton, Stephanie E, Gray, Derek K, Izmest'eva, Lyubov R, Moore, Marianne V, Ozersky, Tedy

“…Both surface water temperatures and the intensity of thermal stratification have increased recently in large lakes throughout the world. Such physical changes…”
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Identifying the source of species invasions: sampling intensity vs. genetic diversity by MUIRHEAD, JIM R, GRAY, DEREK K, KELLY, DAVID W, ELLIS, SANDRA M, HEATH, DANIEL D, MACISAAC, HUGH J

“…Population geneticists and community ecologists have long recognized the importance of sampling design for uncovering patterns of diversity within and among…”
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Young gravel-pit lakes along Canada's Dempster Highway: How do they compare with natural lakes? by Vucic, Jasmina M., Cohen, Rachel S., Gray, Derek K., Murdoch, Alyssa D., Shuvo, Arnab, Sharma, Sapna

“…Gravel-pit lakes are a common feature of many human-modified landscapes throughout the world. In Canada's north, they are often formed when gravel is extracted…”
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Efficacy of Open-Ocean Ballast Water Exchange as a Means of Preventing Invertebrate Invasions between Freshwater Ports by Derek K. Gray, Johengen, Thomas H., Reid, David F., MacIsaac, Hugh J.

“…Ballast water is a major vector of nonindigenous species invasion globally. Mandatory ballast water exchange (BWE) was implemented for vessels carrying ballast…”
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Recovery of acid damaged zooplankton communities: measurement, extent, and limiting factors by Gray, Derek K, Arnott, Shelley E

“…Anthropogenic acidification has affected biota in thousands of lakes in eastern North America and Europe. To measure the degree and extent of biological…”
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Can dispersal buffer against salinity‐driven zooplankton community change in Great Plains' lakes? by Huynh, Mercedes, Gray, Derek K.

“…The North American Great Plains contains thousands of lakes that vary in salinity from freshwater to hypersaline. Paleolimnological studies show that salinity…”
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Current water quality guidelines across North America and Europe do not protect lakes from salinization by Hintz, William D, Arnott, Shelley E, Symons, Celia C, Greco, Danielle A, McClymont, Alexandra, Brentrup, Jennifer A, Cañedo-Argüelles, Miguel, Derry, Alison M, Downing, Amy L, Gray, Derek K, Melles, Stephanie J, Relyea, Rick A, Rusak, James A, Searle, Catherine L, Astorg, Louis, Baker, Henry K, Beisner, Beatrix E, Cottingham, Kathryn L, Ersoy, Zeynep, Espinosa, Carmen, Franceschini, Jaclyn, Giorgio, Angelina T, Göbeler, Norman, Hassal, Emily, Hébert, Marie-Pier, Huynh, Mercedes, Hylander, Samuel, Jonasen, Kacie L, Kirkwood, Andrea E, Langenheder, Silke, Langvall, Ola, Laudon, Hjalmar, Lind, Lovisa, Lundgren, Maria, Proia, Lorenzo, Schuler, Matthew S, Shurin, Jonathan B, Steiner, Christopher F, Striebel, Maren, Thibodeau, Simon, Urrutia-Cordero, Pablo, Vendrell-Puigmitja, Lidia, Weyhenmeyer, Gesa A

“…Human-induced salinization caused by the use of road deicing salts, agricultural practices, mining operations, and climate change is a major threat to the…”
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Do gravel highways affect water quality and invertebrate communities in Arctic lakes? by Madeline E. Patenall, Natasha M. Hannan, Vivian Gao, Homa Kheyrollah Pour, Derek K. Gray

“…Gravel roads are a common feature in developed areas of Canada’s Arctic. These roads can be a source of calcareous dust that drifts to roadside lakes, causing…”
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Drivers of fish biodiversity in a rapidly changing permafrost landscape by Murdoch, Alyssa, Gray, Derek K., Korosi, Jennifer, Vucic, Jasmina M., Cohen, Rachel S., Sharma, Sapna

“…Rapid environmental change occurring in northern permafrost regions may have profound implications for fish biodiversity but remains poorly understood. Climate…”
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Changes in water quality related to permafrost thaw may significantly impact zooplankton in small Arctic lakes by Vucic, Jasmina M., Gray, Derek K., Cohen, Rachel S., Syed, Maariyah, Murdoch, Alyssa D., Sharma, Sapna

“…Rising temperatures are leading to permafrost thaw over vast areas of the northern hemisphere. In the Canadian Arctic, permafrost degradation is causing…”
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A database of chlorophyll and water chemistry in freshwater lakes by Filazzola, Alessandro, Mahdiyan, Octavia, Shuvo, Arnab, Ewins, Carolyn, Moslenko, Luke, Sadid, Tanzil, Blagrave, Kevin, Imrit, Mohammad Arshad, Gray, Derek K., Quinlan, Roberto, O’Reilly, Catherine M., Sharma, Sapna

“…Measures of chlorophyll represent the algal biomass in freshwater lakes that is often used by managers as a proxy for water quality and lake productivity…”
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Does dispersal limitation impact the recovery of zooplankton communities damaged by a regional stressor? by Gray, Derek K, Arnott, Shelley E

“…The acidification and ongoing pH recovery of lakes in Killarney Provincial Park, Canada, provide a unique opportunity to increase our understanding of the role…”
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Which physicochemical variables should zooplankton ecologists measure when they conduct field studies? by Gray, Derek K, Elmarsafy, Mariam, Vucic, Jasmina M, Teillet, Matthew, Pretty, Thomas J, Cohen, Rachel S, Huynh, Mercedes

“…Abstract Over the last century, a rich literature has developed describing how the physical and chemical environment influences zooplankton communities, but…”
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The role of dispersal levels, Allee effects and community resistance as zooplankton communities respond to environmental change by Gray, Derek K., Arnott, Shelley E.

“…1. Worldwide, freshwater zooplankton communities have been subjected to multiple environmental stressors including acidification, invasive species…”
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Lake salinization drives consistent losses of zooplankton abundance and diversity across coordinated mesocosm experiments by Hébert, Marie‐Pier, Symons, Celia C., Cañedo‐Argüelles, Miguel, Arnott, Shelley E., Derry, Alison M., Fugère, Vincent, Hintz, William D., Melles, Stephanie J., Astorg, Louis, Baker, Henry K., Brentrup, Jennifer A., Downing, Amy L., Ersoy, Zeynep, Espinosa, Carmen, Franceschini, Jaclyn M., Giorgio, Angelina T., Göbeler, Norman, Gray, Derek K., Greco, Danielle, Hassal, Emily, Huynh, Mercedes, Hylander, Samuel, Jonasen, Kacie L., Kirkwood, Andrea, Langenheder, Silke, Langvall, Ola, Laudon, Hjalmar, Lind, Lovisa, Lundgren, Maria, McClymont, Alexandra, Proia, Lorenzo, Relyea, Rick A., Rusak, James A., Schuler, Matthew S., Searle, Catherine L., Shurin, Jonathan B., Steiner, Christopher F., Striebel, Maren, Thibodeau, Simon, Urrutia Cordero, Pablo, Vendrell‐Puigmitja, Lidia, Weyhenmeyer, Gesa A., Beisner, Beatrix E.

“…Human‐induced salinization increasingly threatens inland waters; yet we know little about the multifaceted response of lake communities to salt contamination…”
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The recovery of acid-damaged zooplankton communities in Canadian Lakes: the relative importance of abiotic, biotic and spatial variables by GRAY, DEREK K., ARNOTT, SHELLEY E., SHEAD, JUSTIN A., DERRY, ALISON M.

“…Summary 1. Acidification has damaged biota in thousands of lakes and streams throughout eastern North America. Fortunately, reduced emissions of sulphur…”
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Widespread variation in salt tolerance within freshwater zooplankton species reduces the predictability of community‐level salt tolerance by Arnott, Shelley E., Fugère, Vincent, Symons, Celia C., Melles, Stephanie J., Beisner, Beatrix E., Cañedo‐Argüelles, Miguel, Hébert, Marie‐Pier, Brentrup, Jennifer A., Downing, Amy L., Gray, Derek K., Greco, Danielle, Hintz, William D., McClymont, Alexandra, Relyea, Rick A., Rusak, James A., Searle, Catherine L., Astorg, Louis, Baker, Henry K., Ersoy, Zeynep, Espinosa, Carmen, Franceschini, Jaclyn M., Giorgio, Angelina T., Göbeler, Norman, Hassal, Emily, Huynh, Mercedes, Hylander, Samuel, Jonasen, Kacie L., Kirkwood, Andrea, Langenheder, Silke, Langvall, Ola, Laudon, Hjalmar, Lind, Lovisa, Lundgren, Maria, Moffett, Emma R., Proia, Lorenzo, Schuler, Matthew S., Shurin, Jonathan B., Steiner, Christopher F., Striebel, Maren, Thibodeau, Simon, Cordero, Pablo Urrutia, Vendrell‐Puigmitja, Lidia, Weyhenmeyer, Gesa A., Derry, Alison M.

“…The salinization of freshwaters is a global threat to aquatic biodiversity. We quantified variation in chloride (Cl−) tolerance of 19 freshwater zooplankton…”
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The interplay between environmental conditions and Allee effects during the recovery of stressed zooplankton communities by Gray, Derek K, Arnott, Shelley E

“…Many important ecological phenomena depend on the success or failure of small introduced populations. Several factors are thought to influence the fate of…”
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Can sodium hypochlorite reduce the risk of species introductions from diapausing invertebrate eggs in non-ballasted ships? by Gray, Derek K., Duggan, Ian C., MacIsaac, Hugh J.

“…Many transoceanic vessels enter the Great Lakes carrying residual ballast water and sediment that harbours live animals and diapausing eggs. In this study, we…”
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Lake Superior: an invasion coldspot? by GRIGOROVICH, Igor A, KORNIUSHIN, Alexei V, GRAY, Derek K, DUGGAN, Ian C, COLAUTTI, Robert I, MACISAAC, Hugh J

“…Lake Superior receives a disproportionate number of ballast water discharges from transoceanic ships operating on the Laurentian Great Lakes. Although this…”
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