Search Results - "Rosen, David A.S"

Thermal and digestive constraints to foraging behaviour in marine mammals by Rosen, David A.S, Winship, Arliss J, Hoopes, Lisa A

“…While foraging models of terrestrial mammals are concerned primarily with optimizing time/energy budgets, models of foraging behaviour in marine mammals have…”
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Key questions in marine mammal bioenergetics by McHuron, Elizabeth A, Adamczak, Stephanie, Arnould, John P Y, Ashe, Erin, Booth, Cormac, Bowen, W Don, Christiansen, Fredrik, Chudzinska, Magda, Costa, Daniel P, Fahlman, Andreas, Farmer, Nicholas A, Fortune, Sarah M E, Gallagher, Cara A, Keen, Kelly A, Madsen, Peter T, McMahon, Clive R, Nabe-Nielsen, Jacob, Noren, Dawn P, Noren, Shawn R, Pirotta, Enrico, Rosen, David A S, Speakman, Cassie N, Villegas-Amtmann, Stella, Williams, Rob

“…Marine mammals are facing many threats that impact their ability to obtain energy to survive and reproduce. Much remains unknown about marine mammal…”
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Changes in glucocorticoids, IGF-I and thyroid hormones as indicators of nutritional stress and subsequent refeeding in Steller sea lions ( Eumetopias jubatus) by Jeanniard du Dot, Tiphaine, Rosen, David A.S., Richmond, Julie P., Kitaysky, Alexander S., Zinn, Steven A., Trites, Andrew W.

“…Physiological responses to changes in energy balance are tightly regulated by the endocrine system through glucocorticoids, IGF-I and thyroid hormones. Changes…”
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Steller sea lions Eumetopias jubatus and nutritional stress: evidence from captive studies by ROSEN, DAVID A.S

“…1. Numbers of Steller sea lions Eumetopias jubatus in the North Pacific have declined. According to the nutritional stress hypothesis, this decline is due to…”
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The Genome of the Steller Sea Lion ( Eumetopias jubatus ) by Kwan, Harwood H, Culibrk, Luka, Taylor, Gregory A, Leelakumari, Sreeja, Tan, Ryan, Jackman, Shaun D, Tse, Kane, MacLeod, Tina, Cheng, Dean, Chuah, Eric, Kirk, Heather, Pandoh, Pawan, Carlsen, Rebecca, Zhao, Yongjun, Mungall, Andrew J, Moore, Richard, Birol, Inanc, Marra, Marco A, Rosen, David A S, Haulena, Martin, Jones, Steven J M

“…The Steller sea lion is the largest member of the Otariidae family and is found in the coastal waters of the northern Pacific Rim. Here, we present the Steller…”
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Stable isotope signal homogeneity and differences between and within pinniped muscle and skin by Todd, Sean K, Holm, Bethany, Rosen, David A.S, Tollit, Dominic J

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Dive behaviour can predict metabolic expenditure in Steller sea lions by Goundie, Elizabeth T., Rosen, David A. S., Trites, Andrew W.

“…Using data from trained Steller sea lions diving in the open ocean, we developed and validated an energetic model that predicts energy expended by foraging sea…”
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Short-term episodes of imposed fasting have a greater effect on young northern fur seals (Callorhinus ursinus) in summer than in winter by Rosen, David A. S., Volpov, Beth L., Trites, Andrew W.

“…Imposed 48-hr periods of fasting in six young (6 to 24 months) female northern fur seals did not decrease metabolism or increase thermoregulatory costs, but…”
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REDUCTIONS IN OXYGEN CONSUMPTION DURING DIVES AND ESTIMATED SUBMERGENCE LIMITATIONS OF STELLER SEA LIONS (EUMETOPIAS JUBATUS) by Hastie, Gordon D, Rosen, David A.S, Trites, Andrew W

“…Accurate estimates of diving metabolic rate are central to assessing the energy needs of marine mammals. To circumvent some of the limitations inherent with…”
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Maintaining control: metabolism of molting Arctic seals in water and when hauled out by Thometz, Nicole M, Rosen, David A S, Hermann-Sorensen, Holly, Meranda, Madeline, Pardini, Madilyn, Reichmuth, Colleen

“…Seals haul out of water for extended periods during the annual molt, when they shed and regrow their pelage. This behavior is believed to limit heat loss to…”
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Resting and swimming metabolic rates in juvenile walruses (Odobenus rosmarus) by Rosen, David A. S.

“…Changes in Arctic ice conditions have raised concerns regarding potential impacts on energy expenditure and food requirements of walruses. Modeling the…”
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The effect of food restriction on growth rates in Steller sea lions, Eumetopias jubatus by Rosen, David A. S.

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Normal pre- and post-prandial bile acids and protein C values vary by age in harbor seal pups (Phoca vitulina richardsi) undergoing rehabilitation by Linnehan, Barbara K, Leedam, Jenelle E, Rosen, David A S, Haulena, Martin

“…To establish normal values for pre- and post-prandial bile acids and protein C in Pacific harbor seal (Phoca vitulina richardsi) pups. 45 harbor seals…”
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Use of midazolam and butorphanol to sedate harbor seal pups (Phoca vitulina) undergoing rehabilitation by Anderson, Chelsea E., Tang, Karisa, Pace, Courtney, Rosen, David A. S., Haulena, Martin

“…Between 2012 and 2022, the Vancouver Aquarium Marine Mammal Rescue Centre sedated 110 harbor seal pups for physical examinations, diagnostic procedures, or…”
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What are the Metabolic Rates of Marine Mammals and What Factors Impact this Value: A review by Noren, S R, Rosen, David A S

“…Assessing population-level consequences for marine mammals exposed to disturbance requires knowledge of their metabolism. We provide an overview of the…”
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Telemetry tags increase the costs of swimming in northern fur seals, Callorhinus ursinus by Rosen, David A. S., Gerlinsky, Carling G., Trites, Andrew W.

“…Animal‐borne instruments have become a standard tool for collecting important data from marine mammals. However, few studies have examined whether placement of…”
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Feeding kinematics and performance of basal otariid pinnipeds, Steller sea lions and northern fur seals: implications for the evolution of mammalian feeding by Marshall, Christopher D, Rosen, David A S, Trites, Andrew W

“…Feeding performance studies can address questions relevant to feeding ecology and evolution. Our current understanding of feeding mechanisms for aquatic…”
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Variation in body mass and food intake of northern fur seals (Callorhinus ursinus) by McHuron, Elizabeth A., Rosen, David A. S., Carpenter, Julie, Leonard, Patricia, Sirpenski, Gayle, Sterling, Jeremy T.

“…Estimates of prey and energy consumption are important for effective management and conservation of marine mammals and the ecosystems they inhabit. We used…”
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Electrocardiographic Scaling Reveals Differences in Electrocardiogram Interval Durations Between Marine and Terrestrial Mammals by Storlund, Rhea L., Rosen, David A. S., Trites, Andrew W.

“…Although the ability of marine mammals to lower heart rates for extended periods when diving is well documented, it is unclear whether marine mammals have…”
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Molting strategies of Arctic seals drive annual patterns in metabolism by Thometz, Nicole M, Hermann-Sorensen, Holly, Russell, Brandon, Rosen, David A S, Reichmuth, Colleen

“…Lay Summary: We used fine-scale measurements of resting metabolism to define seasonal patterns of baseline energy demands for spotted, ringed, and bearded…”
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