Search Results - "Bromaghin, Jeffrey F"

Diet energy density estimated from isotopes in predator hair associated with survival, habitat, and population dynamics by Rode, Karyn D., Taras, Brian D., Stricker, Craig A., Atwood, Todd C., Boucher, Nicole P., Durner, George M., Derocher, Andrew E., Richardson, Evan S., Cherry, Seth G., Quakenbush, Lori, Horstmann, Lara, Bromaghin, Jeffrey F.

“…Sea ice loss is fundamentally altering the Arctic marine environment. Yet there is a paucity of data on the adaptability of food webs to ecosystem change,…”
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Survival and abundance of polar bears in Alaska’s Beaufort Sea, 2001–2016 by Bromaghin, Jeffrey F., Douglas, David C., Durner, George M., Simac, Kristin S., Atwood, Todd C.

“…The Arctic Ocean is undergoing rapid transformation toward a seasonally ice‐free ecosystem. As ice‐adapted apex predators, polar bears (Ursus maritimus) are…”
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Use of genetic data to infer population-specific ecological and phenotypic traits from mixed aggregations by Moran, Paul, Bromaghin, Jeffrey F, Masuda, Michele

“…Many applications in ecological genetics involve sampling individuals from a mixture of multiple biological populations and subsequently associating those…”
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Should fatty acid signature proportions sum to 1 for diet estimation? by Bromaghin, Jeffrey F., Budge, Suzanne M., Thiemann, Gregory W.

“…Knowledge of predator diets, including how diets might change through time or differ among predators, provides essential insights into their ecology. Diet…”
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Energy-Rich Mesopelagic Fishes Revealed as a Critical Prey Resource for a Deep-Diving Predator Using Quantitative Fatty Acid Signature Analysis by Goetsch, Chandra, Conners, Melinda G., Budge, Suzanne M., Mitani, Yoko, Walker, William A., Bromaghin, Jeffrey F., Simmons, Samantha E., Reichmuth, Colleen, Costa, Daniel P.

“…Understanding the diet of deep-diving predators can provide essential insight to the trophic structure of the mesopelagic ecosystem. Comprehensive…”
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Assessing the robustness of quantitative fatty acid signature analysis to assumption violations by Bromaghin, Jeffrey F., Budge, Suzanne M., Thiemann, Gregory W., Rode, Karyn D., Davey, Matthew

“…Summary Knowledge of animal diets can provide important insights into life history and ecology, relationships among species in a community and potential…”
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Forecasting the relative influence of environmental and anthropogenic stressors on polar bears by Atwood, Todd C., Marcot, Bruce G., Douglas, David C., Amstrup, Steven C., Rode, Karyn D., Durner, George M., Bromaghin, Jeffrey F.

“…Abstract Effective conservation planning requires understanding and ranking threats to wildlife populations. We developed a Bayesian network model to evaluate…”
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Distance measures and optimization spaces in quantitative fatty acid signature analysis by Bromaghin, Jeffrey F., Rode, Karyn D., Budge, Suzanne M., Thiemann, Gregory W.

“…Quantitative fatty acid signature analysis has become an important method of diet estimation in ecology, especially marine ecology. Controlled feeding trials…”
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Detect and exploit hidden structure in fatty acid signature data by Bromaghin, Jeffrey F., Budge, Suzanne M., Thiemann, Gregory W.

“…Estimates of predator diet composition are essential to our understanding of their ecology. Although several methods of estimating diet are practiced, methods…”
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qfasar: quantitative fatty acid signature analysis with R by Bromaghin, Jeffrey F., Poisot, Timothée

“…Summary Knowledge of predator diets provides essential insights into their ecology, yet diet estimation is challenging and remains an active area of research…”
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Dietary fat concentrations influence fatty acid assimilation patterns in Atlantic pollock ( Pollachius virens ) by Budge, Suzanne M, Townsend, Kathryn, Lall, Santosh P, Bromaghin, Jeffrey F

“…A key aspect in the use of fatty acids (FA) to estimate predator diets using quantitative FA signature analysis (QFASA) is the ability to account for FA…”
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Drivers and consequences of apex predator diet composition in the Canadian Beaufort Sea by Florko, Katie R. N., Thiemann, Gregory W., Bromaghin, Jeffrey F.

“…Polar bears (Ursus maritimus) rely on annual sea ice as their primary habitat for hunting marine mammal prey. Given their long lifespan, wide geographic…”
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Polar bear population dynamics in the southern Beaufort Sea during a period of sea ice decline by Bromaghin, Jeffrey F, McDonald, Trent L, Stirling, Ian, Derocher, Andrew E, Richardson, Evan S, Regehr, Eric V, Douglas, David C, Durner, George M, Atwood, Todd, Amstrup, Steven C

“…In the southern Beaufort Sea of the United States and Canada, prior investigations have linked declines in summer sea ice to reduced physical condition,…”
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Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea by Rode, Karyn D., Regehr, Eric V., Bromaghin, Jeffrey F., Wilson, Ryan R., St. Martin, Michelle, Crawford, Justin A., Quakenbush, Lori T.

“…Polar bears (Ursus maritimus) are experiencing loss of sea ice habitats used to access their marine mammal prey. Simultaneously, ocean warming is changing…”
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Incremental evolution of modeling a prognosis for polar bears in a rapidly changing Arctic by Marcot, Bruce G., Atwood, Todd C., Douglas, David C., Bromaghin, Jeffrey F., Pagano, Anthony M., Amstrup, Steven C.

“…Updating predictions of the response of high-profile, at-risk species to climate change and anthropogenic stressors is vital for informing effective…”
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Simulating realistic predator signatures in quantitative fatty acid signature analysis by Bromaghin, Jeffrey F.

“…Diet estimation is an important field within quantitative ecology, providing critical insights into many aspects of ecology and community dynamics…”
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Diet composition and body condition of polar bears (Ursus maritimus) in relation to sea ice habitat in the Canadian High Arctic by Florko, Katie R. N., Thiemann, Gregory W., Bromaghin, Jeffrey F., Richardson, Evan S.

“…Polar bears ( Ursus maritimus ) rely on sea ice for hunting marine mammal prey. Declining sea ice conditions associated with climate warming have negatively…”
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Habitat degradation affects the summer activity of polar bears by Ware, Jasmine V., Rode, Karyn D., Bromaghin, Jeffrey F., Douglas, David C., Wilson, Ryan R., Regehr, Eric V., Amstrup, Steven C., Durner, George M., Pagano, Anthony M., Olson, Jay, Robbins, Charles T., Jansen, Heiko T.

“…Understanding behavioral responses of species to environmental change is critical to forecasting population-level effects. Although climate change is…”
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Simultaneous estimation of diet composition and calibration coefficients with fatty acid signature data by Bromaghin, Jeffrey F., Budge, Suzanne M., Thiemann, Gregory W., Rode, Karyn D.

“…Knowledge of animal diets provides essential insights into their life history and ecology, although diet estimation is challenging and remains an active area…”
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bels: backward elimination locus selection for studies of mixture composition or individual assignment by BROMAGHIN, JEFFREY F.

“…Methods of evaluating loci in studies of mixture composition or individual assignment are largely based on performance characteristics of individual loci…”
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