Search Results - "HALSEY, LEWIS G."

Proxy problems: Why a calibration is essential for interpreting quantified changes in energy expenditure from biologging data by Halsey, Lewis G., Bryce, Caleb M., Crocker, Daniel

“…We do not yet have the means to directly measure the energy expenditure of wild animals, particularly at a high temporal resolution. However, we can instead…”
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Flying fast improves aerodynamic economy of heavier birds by Bishop, Charles M., Halsey, Lewis G., Askew, Graham N.

“…A paradox of avian long-distance migrations is that birds must greatly increase their body mass prior to departure, yet this is presumed to substantially…”
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Tri-axial dynamic acceleration as a proxy for animal energy expenditure; should we be summing values or calculating the vector? by Qasem, Lama, Cardew, Antonia, Wilson, Alexis, Griffiths, Iwan, Halsey, Lewis G, Shepard, Emily L C, Gleiss, Adrian C, Wilson, Rory

“…Dynamic body acceleration (DBA) has been used as a proxy for energy expenditure in logger-equipped animals, with researchers summing the acceleration (overall…”
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Exploring key issues of aerobic scope interpretation in ectotherms: absolute versus factorial by Halsey, Lewis G., Killen, Shaun S., Clark, Timothy D., Norin, Tommy

“…Aerobic scope represents an animal’s capacity to increase its aerobic metabolic rate above maintenance levels (i.e. the difference between standard (SMR) and…”
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The reign of the p-value is over: what alternative analyses could we employ to fill the power vacuum? by Halsey, Lewis G

“…The p-value has long been the figurehead of statistical analysis in biology, but its position is under threat. p is now widely recognized as providing quite…”
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Powering Ocean Giants: The Energetics of Shark and Ray Megafauna by Lawson, Christopher L., Halsey, Lewis G., Hays, Graeme C., Dudgeon, Christine L., Payne, Nicholas L., Bennett, Michael B., White, Craig R., Richardson, Anthony J.

“…Shark and ray megafauna have crucial roles as top predators in many marine ecosystems, but are currently among the most threatened vertebrates and, based on…”
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Combining abundance and performance data reveals how temperature regulates coastal occurrences and activity of a roaming apex predator by Payne, Nicholas L., Meyer, Carl G., Smith, James A., Houghton, Jonathan D. R., Barnett, Adam, Holmes, Bonnie J., Nakamura, Itsumi, Papastamatiou, Yannis P., Royer, Mark A., Coffey, Daniel M., Anderson, James M., Hutchinson, Melanie R., Sato, Katsufumi, Halsey, Lewis G.

“…The redistribution of species has emerged as one of the most pervasive impacts of anthropogenic climate warming, and presents many societal challenges…”
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Assessing the development and application of the accelerometry technique for estimating energy expenditure by Halsey, Lewis G., Shepard, Emily L.C., Wilson, Rory P.

“…A theoretically valid proxy of energy expenditure is the acceleration of an animal's mass due to the movement of its body parts. Acceleration can be measured…”
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Moving towards Acceleration for Estimates of Activity-Specific Metabolic Rate in Free-Living Animals: The Case of the Cormorant by Wilson, Rory P., White, Craig R., Quintana, Flavio, Halsey, Lewis G., Liebsch, Nikolai, Martin, Graham R., Butler, Patrick J.

“…1. Time and energy are key currencies in animal ecology, and judicious management of these is a primary focus for natural selection. At present, however, there…”
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Variability in variability: does variation in morphological and physiological traits differ between men and women? by Halsey, Lewis G., Esteves, Gabriel P., Dolan, Eimear

“…Many researchers presume greater variability between female participants than between males due to the menstrual cycle. This view has encouraged a sex bias in…”
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Breakfast habits, beliefs and measures of health and wellbeing in a nationally representative UK sample by Reeves, Sue, Halsey, Lewis G, McMeel, Yvonne, Huber, Jörg W

“…The aim of this study was to report UK adult breakfasting habits, beliefs and the relationship of both with measures of personality, health and wellbeing…”
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Flexibility, variability and constraint in energy management patterns across vertebrate taxa revealed by long‐term heart rate measurements by Halsey, Lewis G., Green, Jonathan A., Twiss, Sean D., Arnold, Walter, Burthe, Sarah J., Butler, Patrick J., Cooke, Steven J., Grémillet, David, Ruf, Thomas, Hicks, Olivia, Minta, Katarzyna J., Prystay, Tanya S., Wascher, Claudia A. F., Careau, Vincent, Levesque, Danielle

“…Animals are expected to be judicious in the use of the energy they gain due to the costs and limits associated with its intake. The management of energy…”
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Measuring energetics and behaviour using accelerometry in cane toads Bufo marinus by Halsey, Lewis G, White, Craig R

“…Cane toads Bufo marinus were introduced to Australia as a control agent but now have a rapidly progressing invasion front and damage new habitats they enter…”
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Terrestrial movement energetics: current knowledge and its application to the optimising animal by Halsey, Lewis G

“…The energetic cost of locomotion can be a substantial proportion of an animal's daily energy budget and thus key to its ecology. Studies on myriad species have…”
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A Phylogenetic Analysis of the Allometry of Diving by Halsey, Lewis G., Butler, Patrick J., Blackburn, Tim M.

“…The oxygen store/usage hypothesis suggests that larger animals are able to dive for longer and hence deeper because oxygen storage scales isometrically with…”
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Latent power of basking sharks revealed by exceptional breaching events by Johnston, Emmett M., Halsey, Lewis G., Payne, Nicholas L., Kock, Alison A., Iosilevskii, Gil, Whelan, Bren, Houghton, Jonathan D. R.

“…The fast swimming and associated breaching behaviour of endothermic mackerel sharks is well suited to the capture of agile prey. In contrast, the observed but…”
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The challenge of measuring energy expenditure: Current field and laboratory methods by Halsey, Lewis G.

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Allometric scaling of metabolic rate and cardiorespiratory variables in aquatic and terrestrial mammals by He, Rebecca S., De Ruiter, Stacy, Westover, Tristan, Somarelli, Jason A., Blawas, Ashley M., Dayanidhi, Divya L., Singh, Ana, Steves, Benjamin, Driesinga, Samantha, Halsey, Lewis G., Fahlman, Andreas

“…While basal metabolic rate (BMR) scales proportionally with body mass (Mb), it remains unclear whether the relationship differs between mammals from aquatic…”
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Fish heating tolerance scales similarly across individual physiology and populations by Payne, Nicholas L., Morley, Simon A., Halsey, Lewis G., Smith, James A., Stuart-Smith, Rick, Waldock, Conor, Bates, Amanda E.

“…Extrapolating patterns from individuals to populations informs climate vulnerability models, yet biological responses to warming are uncertain at both levels…”
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The cardio‐respiratory effects of passive heating and the human thermoneutral zone by Henderson, Mary E.T., Brayson, Daniel, Halsey, Lewis G

“…The thermoneutral zone (TNZ) defines the range of ambient temperatures at which resting metabolic rate (MR) is at a minimum. While the TNZ lower limit has been…”
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