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Articles 1 - 9 of 9
Full-Text Articles in Marine Biology
Ten Years Tracking The Migrations Of Small Landbirds: Lessons Learned In The Golden Age Of Bio-Logging, Emily A. Mckinnon, Oliver P. Love
Ten Years Tracking The Migrations Of Small Landbirds: Lessons Learned In The Golden Age Of Bio-Logging, Emily A. Mckinnon, Oliver P. Love
Great Lakes Institute for Environmental Research Publications
In 2007, the first miniature light-level geolocators were deployed on small landbirds, revolutionizing the study of migration. In this paper, we review studies that have used geolocators to track small landbirds with the goal of summarizing research themes and identifying remaining important gaps in understanding. We also highlight research and opportunities using 2 recently developed tracking technologies: archival GPS tags and automated radio-telemetry systems. In our review, we found that most (54%) geolocator studies focused on quantifying natural history of migration, such as identifying migration routes, nonbreeding range, and migration timing. Studies of behavioral ecology (20%) uncovered proximate drivers of …
Integrating Complementary Methods To Improve Diet Analysis In Fishery-Targeted Species, Jordan K. Matley, Gregory E. Maes, Floriaan Devloo-Delva, Roger Huerlimann, Gladys Chua, Andrew J. Tobin, Aaron T. Fisk, Colin A. Simpfendorfer, Michelle R. Heupel
Integrating Complementary Methods To Improve Diet Analysis In Fishery-Targeted Species, Jordan K. Matley, Gregory E. Maes, Floriaan Devloo-Delva, Roger Huerlimann, Gladys Chua, Andrew J. Tobin, Aaron T. Fisk, Colin A. Simpfendorfer, Michelle R. Heupel
Great Lakes Institute for Environmental Research Publications
Developing efficient, reliable, cost-effective ways to identify diet is required to understand trophic ecology in complex ecosystems and improve food web models. A combination of techniques, each varying in their ability to provide robust, spatially and temporally explicit information can be applied to clarify diet data for ecological research. This study applied an integrative analysis of a fishery-targeted species group—Plectropomus spp. in the central Great Barrier Reef, Australia, by comparing three diet-identification approaches. Visual stomach content analysis provided poor identification with ~14% of stomachs sampled resulting in identification to family or lower. A molecular approach was successful with prey from …
Higher Rates Of Prebreeding Condition Gain Positively Impacts Clutch Size: A Mechanistic Test Of The Condition-Dependent Individual Optimization Model, Holly L. Hennin, Cody J. Dey, Joël Bêty, H. Grant Gilchrist, Pierre Legagneux, Tony D. Williams, Oliver P. Love
Higher Rates Of Prebreeding Condition Gain Positively Impacts Clutch Size: A Mechanistic Test Of The Condition-Dependent Individual Optimization Model, Holly L. Hennin, Cody J. Dey, Joël Bêty, H. Grant Gilchrist, Pierre Legagneux, Tony D. Williams, Oliver P. Love
Great Lakes Institute for Environmental Research Publications
A combination of timing of and body condition (i.e., mass) at arrival on the breeding grounds interact to influence the optimal combination of the timing of reproduction and clutch size in migratory species. This relationship has been formalized by Rowe et al. in a condition-dependent individual optimization model (American Naturalist, 1994, 143, 689-722), which has been empirically tested and validated in avian species with a capital-based breeding strategy. This model makes a key, but currently untested prediction; that variation in the rate of body condition gain will shift the optimal combination of laying date and clutch size. This prediction is …
Error Management Theory And The Adaptive Significance Of Transgenerational Maternal-Stress Effects On Offspring Phenotype, Michael J. Sheriff, Ben Dantzer, Oliver P. Love, John L. Orrock
Error Management Theory And The Adaptive Significance Of Transgenerational Maternal-Stress Effects On Offspring Phenotype, Michael J. Sheriff, Ben Dantzer, Oliver P. Love, John L. Orrock
Great Lakes Institute for Environmental Research Publications
It is well established that circulating maternal stress hormones (glucocorticoids, GCs) can alter offspring phenotype. There is also a growing body of empirical work, within ecology and evolution, indicating that maternal GCs link the environment experienced by the mother during gestation with changes in offspring phenotype. These changes are considered to be adaptive if the maternal environment matches the offspring's environment and maladaptive if it does not. While these ideas are conceptually sound, we lack a testable framework that can be used to investigate the fitness costs and benefits of altered offspring phenotypes across relevant future environments. We present error …
Nitrogen Cycling In Sandusky Bay, Lake Erie: Oscillations Between Strong And Weak Export And Implications For Harmful Algal Blooms, Kateri R. Salk, George S. Bullerjahn, Robert Michael L. Mckay, Justin D. Chaffin, Nathaniel E. Ostrom
Nitrogen Cycling In Sandusky Bay, Lake Erie: Oscillations Between Strong And Weak Export And Implications For Harmful Algal Blooms, Kateri R. Salk, George S. Bullerjahn, Robert Michael L. Mckay, Justin D. Chaffin, Nathaniel E. Ostrom
Great Lakes Institute for Environmental Research Publications
Recent global water quality crises point to an urgent need for greater understanding of cyanobacterial harmful algal blooms (cHABs) and their drivers. Nearshore areas of Lake Erie such as Sandusky Bay may become seasonally limited by nitrogen (N) and are characterized by distinct cHAB compositions (i.e., Planktothrix over Microcystis). This study investigated phytoplankton N uptake pathways, determined drivers of N depletion, and characterized the N budget in Sandusky Bay. Nitrate (NO3-) and ammonium (NH4+) uptake, N fixation, and N removal processes were quantified by stable isotopic approaches. Dissimilatory N reduction was a relatively modest N sink, with denitrification, anammox, and …
The Conservation Physiology Toolbox: Status And Opportunities, Christine L. Madliger, Oliver P. Love, Kevin R. Hultine, Steven J. Cooke
The Conservation Physiology Toolbox: Status And Opportunities, Christine L. Madliger, Oliver P. Love, Kevin R. Hultine, Steven J. Cooke
Great Lakes Institute for Environmental Research Publications
For over a century, physiological tools and techniques have been allowing researchers to characterize how organisms respond to changes in their natural environment and how they interact with human activities or infrastructure. Over time, many of these techniques have become part of the conservation physiology toolbox, which is used to monitor, predict, conserve, and restore plant and animal populations under threat. Here, we provide a summary of the tools that currently comprise the conservation physiology toolbox. By assessing patterns in articles that have been published in 'Conservation Physiology' over the past 5 years that focus on introducing, refining and validating …
Transcriptome Response Of Atlantic Salmon (Salmo Salar) To Competition With Ecologically Similar Non-Native Species, Xiaoping He, Aimee Lee S. Houde, Bryan D. Neff, Daniel D. Heath
Transcriptome Response Of Atlantic Salmon (Salmo Salar) To Competition With Ecologically Similar Non-Native Species, Xiaoping He, Aimee Lee S. Houde, Bryan D. Neff, Daniel D. Heath
Great Lakes Institute for Environmental Research Publications
Non-native species may be introduced either intentionally or unintentionally, and their impact can range from benign to highly disruptive. Non-native salmonids were introduced into Lake Ontario, Canada, to provide recreational fishing opportunities; however, the establishment of those species has been proposed as a significant barrier to the reintroduction of native Atlantic salmon (Salmo salar) due to intense interspecific competition. In this study, we compared population differences of Atlantic salmon in transcriptome response to interspecific competition. We reared Atlantic salmon from two populations (LaHave River and Sebago Lake) with fish of each of three non-native salmonids (Chinook salmon Oncorhynchus tshawytscha, rainbow …
Population-Specific Responses To Interspecific Competition In The Gut Microbiota Of Two Atlantic Salmon (Salmo Salar) Populations, Xiaoping He, Subba Rao Chagantib, Daniel D. Heath
Population-Specific Responses To Interspecific Competition In The Gut Microbiota Of Two Atlantic Salmon (Salmo Salar) Populations, Xiaoping He, Subba Rao Chagantib, Daniel D. Heath
Great Lakes Institute for Environmental Research Publications
The gut microbial community in vertebrates plays a role in nutrient digestion and absorption, development of intestine and immune systems, resistance to infection, regulation of bone mass and even host behavior and can thus impact host fitness. Atlantic salmon (Salmo salar) reintroduction efforts into Lake Ontario, Canada, have been unsuccessful, likely due to competition with non-native salmonids. In this study, we explored interspecific competition effects on the gut microbiota of two Atlantic salmon populations (LaHave and Sebago) resulting from four non-native salmonids. After 10 months of rearing in semi-natural stream tanks under six interspecific competition treatments, we characterized the gut …
Comparison Of Thermal Tolerance And Standard Metabolic Rate Of Two Great Lakes Invasive Fish Species, Ken G. Drouillard, David A. Feary Dr, Xin Sun, Jessica A. O'Neil, Todd Leadley, Tim B. Johnson Dr
Comparison Of Thermal Tolerance And Standard Metabolic Rate Of Two Great Lakes Invasive Fish Species, Ken G. Drouillard, David A. Feary Dr, Xin Sun, Jessica A. O'Neil, Todd Leadley, Tim B. Johnson Dr
Great Lakes Institute for Environmental Research Publications
Round goby (Neogobius melanostomus) and western tubenose goby (Proterorhinus semilunaris) invaded the Laurentian Great Lakes at approximately the same time and area yet have shown substantial differences in their post-invasion success with more rapid establishment and development of much larger abundances of round goby populations throughout the invaded habitat. In this study, we compared differences in physiological performance (thermal tolerance and standard metabolic rate) between round and tubenose goby collected from the Huron-Erie corridor. Tubenose goby were observed to have lower thermal tolerance but exhibited similar standard metabolic rate across environmental temperatures compared to round goby. …