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https://www.readbyqxmd.com/read/28913953/marine-depth-use-of-sea-trout-salmo-trutta-in-fjord-areas-of-central-norway
#1
S H Eldøy, J G Davidsen, E B Thorstad, F G Whoriskey, K Aarestrup, T F Naesje, L Rønning, A D Sjursen, A H Rikardsen, J V Arnekleiv
The vertical behaviour of 44 veteran sea trout Salmo trutta (275-580 mm) in different marine fjord habitats (estuary, pelagic, near shore with and without steep cliffs) was documented during May-February by acoustic telemetry. The swimming depth of S. trutta was influenced by habitat, time of day (day v. night), season, seawater temperature and the body length at the time of tagging. Mean swimming depth during May-September was 1·7 m (individual means ranged from 0·4 to 6·4 m). Hence, S. trutta were generally surface oriented, but performed dives down to 24 m...
September 15, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28912473/fine-scale-harbour-seal-usage-for-informed-marine-spatial-planning
#2
Esther L Jones, Carol E Sparling, Bernie J McConnell, Christopher D Morris, Sophie Smout
High-resolution distribution maps can help inform conservation measures for protected species; including where any impacts of proposed commercial developments overlap the range of focal species. Around Orkney, northern Scotland, UK, the harbour seal (Phoca vitulina) population has decreased by 78% over 20 years. Concern for the declining harbour seal population has led to constraints being placed on tidal energy generation developments. For this study area, telemetry data from 54 animals tagged between 2003 and 2015 were used to produce density estimation maps...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28905720/evaluation-of-infrared-thermometry-in-cynomolgus-macaques-macaca-fascicularis
#3
Michael M Laffins, Nacera Mellal, Cynthia L Almlie, Douglas E Regalia
Recording an accurate body temperature is important to assess an animal's health status. We compared temperature data from sedated cynomolgus macaques (Macaca fascicularis) to evaluate differences between rectal, infrared (inguinal and chest), and implanted telemetry techniques with the objective of demonstrating the diagnostic equivalence of the infrared device with other approaches. Infrared thermometer readings are instantaneous and require no contact with the animal. Body temperature data were obtained from 205 (137 male, 68 female) cynomolgus macaques under ketamine (10 mg/kg IM) sedation over a 3-mo period during scheduled physical examinations...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28904797/a-cross-validation-based-approach-for-delimiting-reliable-home-range-estimates
#4
Eric R Dougherty, Colin J Carlson, Jason K Blackburn, Wayne M Getz
BACKGROUND: With decreasing costs of GPS telemetry devices, data repositories of animal movement paths are increasing almost exponentially in size. A series of complex statistical tools have been developed in conjunction with this increase in data. Each of these methods offers certain improvements over previously proposed methods, but each has certain assumptions or shortcomings that make its general application difficult. In the case of the recently developed Time Local Convex Hull (T-LoCoH) method, the subjectivity in parameter selection serves as one of the primary impediments to its more widespread use...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28898753/efficiency-of-a-nature-like-bypass-channel-for-restoring-longitudinal-connectivity-for-a-river-resident-population-of-brown-trout
#5
Jamie R Dodd, Ian G Cowx, Jonathan D Bolland
Man-made, physical barriers have disrupted longitudinal connectivity for migratory fish in many river systems throughout the world for centuries. These barriers are considered to be a key reason for the decline of many fish species in river systems. To date, most research to ease movement of anadromous salmonids past such barriers to help dwindling populations has focused on the use of technical fishways. More recently emphasis has been placed on nature-like fishways to enable a wider range of fish species to bypass these barriers, but few studies have examined their efficacy...
September 9, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28885400/internal-validation-of-the-sepsis-in-obstetrics-score-to-identify-risk-of-morbidity-from-sepsis-in-pregnancy
#6
Catherine M Albright, Phinnara Has, Dwight J Rouse, Brenna L Hughes
OBJECTIVE: To prospectively validate the Sepsis in Obstetrics Score, a pregnancy-specific sepsis scoring system, to identify risk for intensive care unit (ICU) admission for sepsis in pregnancy. METHODS: This is a prospective validation study of the Sepsis in Obstetrics Score. The primary outcome was admission to the ICU for sepsis. Secondary outcomes included admission to a telemetry unit and time to administration of antibiotic therapy. We evaluated test characteristics of a predetermined score of 6 or greater...
September 5, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28884653/smartphone-electrographic-monitoring-for-atrial-fibrillation-in-acute-ischemic-stroke-and-transient-ischemic-attack
#7
Hans T Tu, Ziyuan Chen, Corey Swift, Leonid Churilov, Ruibing Guo, Xinfeng Liu, Jim Jannes, Vincent Mok, Ben Freedman, Stephen M Davis, Bernard Yan
Rationale Paroxysmal atrial fibrillation is a common and preventable cause of devastating strokes. However, currently available monitoring methods, including Holter monitoring, cardiac telemetry and event loop recorders, have drawbacks that restrict their application in the general stroke population. AliveCor™ heart monitor, a novel device that embeds miniaturized electrocardiography (ECG) in a smartphone case coupled with an application to record and diagnose the ECG, has recently been shown to provide an accurate and sensitive single lead ECG diagnosis of atrial fibrillation...
October 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28875083/relying-on-known-or-exploring-for-new-movement-patterns-and-reproductive-resource-use-in-a-tadpole-transporting-frog
#8
Kristina B Beck, Matthias-Claudio Loretto, Max Ringler, Walter Hödl, Andrius Pašukonis
Animals relying on uncertain, ephemeral and patchy resources have to regularly update their information about profitable sites. For many tropical amphibians, widespread, scattered breeding pools constitute such fluctuating resources. Among tropical amphibians, poison frogs (Dendrobatidae) exhibit some of the most complex spatial and parental behaviors-including territoriality and tadpole transport from terrestrial clutches to ephemeral aquatic deposition sites. Recent studies have revealed that poison frogs rely on spatial memory to successfully navigate through their environment...
2017: PeerJ
https://www.readbyqxmd.com/read/28873172/tachyarrhythmia-onset-captured-on-telemetry-deciphers-the-diagnosis
#9
Maen D Abou Ziki, Lynda E Rosenfeld
No abstract text is available yet for this article.
September 5, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28872781/armax-a-method-for-assessment-of-the-dynamic-response-of-the-arterial-baroreflex
#10
Morten T Lund, Max Salomonsson, Thomas E N Jonassen, Niels-Henrik Holstein-Rathlou
AIM: The baroreflex is a key mechanism in cardiovascular regulation and alterations in baroreceptor function are seen in many diseases, including heart failure, obesity and hypertension. We propose a new method for analyzing baroreceptor function from continuous blood pressure and heart rate in both health and disease. METHODS: 48-hour data series of blood pressure and heart rate were collected with telemetry. Sprague-Dawley rats on standard chow (n=11) served as controls, while rats on a high-fat, high-fructose diet (n=6) constituted the obese-hypertensive model...
September 5, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28864563/induced-parental-care-in-a-poison-frog-a-tadpole-cross-fostering-experiment
#11
Andrius Pašukonis, Kristina Barbara Beck, Marie-Therese Fischer, Steffen Weinlein, Susanne Stückler, Eva Ringler
Understanding the external stimuli and natural contexts that elicit complex behaviors, such as parental care, is key in linking behavioral mechanisms to their real-life function. Poison frogs provide obligate parental care by shuttling their tadpoles from terrestrial clutches to aquatic nurseries, but little is known about the proximate mechanisms that control these behaviors. In this study, we used Allobates femoralis, a poison frog with predominantly male parental care, to investigate whether tadpole transport can be induced in both sexes by transferring unrelated tadpoles to the backs of adults in the field...
September 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28861240/habitat-selection-by-eurasian-lynx-lynx-lynx-is-primarily-driven-by-avoidance-of-human-activity-during-day-and-prey-availability-during-night
#12
Marc Filla, Joseph Premier, Nora Magg, Claudia Dupke, Igor Khorozyan, Matthias Waltert, Luděk Bufka, Marco Heurich
The greatest threat to the protected Eurasian lynx (Lynx lynx) in Central Europe is human-induced mortality. As the availability of lynx prey often peaks in human-modified areas, lynx have to balance successful prey hunting with the risk of encounters with humans. We hypothesized that lynx minimize this risk by adjusting habitat choices to the phases of the day and over seasons. We predicted that (1) due to avoidance of human-dominated areas during daytime, lynx range use is higher at nighttime, that (2) prey availability drives lynx habitat selection at night, whereas high cover, terrain inaccessibility, and distance to human infrastructure drive habitat selection during the day, and that (3) habitat selection also differs between seasons, with altitude being a dominant factor in winter...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28858037/electroencephalogram-characteristics-during-possession-trances-in-healthy-individuals
#13
Norie Kawai, Manabu Honda, Emi Nishina, Reiko Yagi, Tsutomu Oohashi
Despite intensive studies on cerebral activity during trances involving tranquil arousal states, there are little data on physiological basis of naturally induced possession trances involving hyperarousal active states because of the difficulty of gathering data from participants within a natural cultural context in the field. We investigated the characteristics of electroencephalograms (EEGs) that were specific for naturally induced possession trances involving hyperarousal states in actual rituals. We measured the EEG signals of 12 healthy participants, seven with trance and five without trance, before, during, and after a dedicatory ritual drama in Bali, Indonesia, using a custom-modified field telemetry system...
August 28, 2017: Neuroreport
https://www.readbyqxmd.com/read/28853187/time-motion-analysis-of-nursing-work-in-icu-telemetry-and-medical-surgical-units
#14
Elizabeth Schenk, Ruth Schleyer, Cami R Jones, Sarah Fincham, Kenn B Daratha, Karen A Monsen
AIM: This study examined nurses' work, comparing nursing interventions and locations across three units in a United States hospital using Omaha System standardized terminology as the organizing framework. BACKGROUND: The differences in nurses' acute-care work across unit types are not well understood. Prior investigators have used time-motion methodologies; few have compared differences across units, nor used standardized terminology. METHODS: Nurse-observers recorded locations and interventions of nurses on three acute-care units using hand-held devices and web-based TimeCaT(™) software...
August 29, 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28851965/comparison-of-continuous-glucose-monitoring-between-dexcom-g4-platinum-and-hd-xg-systems-in-nonhuman-primates-macaca-fascicularis
#15
Bingdi Wang, Wei Qiao, Weiwei Ye, Xiaoli Wang, Yongqiang Liu, Yixin Jim Wang, Yong-Fu Xiao
Timely knowing glucose level helps diabetic patients to manage the disease, including decisions about food, physical activity and medication. This study compared two continuous glucose monitoring systems in conscious and moving-free nonhuman primates (NHPs, Macaca fascicularis). Each normoglycemic or diabetic monkey was implanted with one Dexcom G4 Platinum subcutaneously or one HD-XG glucose sensor arterially for glucose monitoring. The glucose levels measured by both telemetry devices significantly correlated with the glucometer readings...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28845717/characterization-and-minimization-of-the-stress-response-to-trapping-in-free-ranging-wolves-canis-lupus-insights-from-physiology-and-behavior
#16
Nuno Santos, Helena Rio-Maior, Mónia Nakamura, Sara Roque, Ricardo Brandão, Francisco Álvares
OBJECTIVES: Wildlife capture is an essential management tool that induces a reactive homeostasis response in the captured animals. The aim of this study was to characterize the reactive homeostatic response to trapping in free-ranging wolves and assess the mitigation achieved by reducing the duration of restraint. MATERIALS AND METHODS: Making use of wolves captured for ecological research as a model for wildlife acute stress, we characterize 25 reactive homeostasis mediators and we assess the effect on these mediators of reducing the duration of restraint in trap by using remote trap activation alarms...
August 28, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28842434/enhanced-hemodynamic-responses-to-angiotensin-ii-in-diabetes-are-associated-with-increased-expression-and-activity-of-at1-receptors-in-the-afferent-arteriole
#17
Jie Zhang, Helena Y Qu, Jiangping Song, Jin Wei, Shan Jiang, Lei Wang, Liqing Wang, Jacentha Buggs, Ruisheng Liu
The prevalence of hypertension is about 2-fold higher in diabetic than in non-diabetic subjects. Hypertension aggravates the progression of diabetic complications, especially diabetic nephropathy. However, the mechanisms for the development of hypertension in diabetes have not been elucidated. We hypothesized that enhanced constrictive responsiveness of renal afferent arterioles (Af-Art) to angiotensin II (Ang II) mediated by Ang II type 1 (AT1) receptors contributes to the development of hypertension in diabetes...
August 25, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28832842/estimation-of-peacock-bass-cichla-spp-mortality-rate-during-catch-release-fishing-employing-different-post-capture-procedures
#18
L S A Barroco, C E C Freitas, Á C Lima
The effect of catch-and-release fishing on the survival of peacock bass (Cichla spp.) was evaluated by comparing two types of artificial bait (jig and shallow-diver plugs) and two types of post-catch confinement. Two experiments were conducted during the periods January-February and October-November 2012 in the Unini River, a right-bank tributary of the Negro River. In total, 191 peacock bass were captured. Both groups of fish were subjected to experimental confinement (collective and individual) for three days...
August 17, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28829820/residency-and-movement-patterns-of-an-apex-predatory-shark-galeocerdo-cuvier-at-the-galapagos-marine-reserve
#19
David Acuña-Marrero, Adam N H Smith, Neil Hammerschlag, Alex Hearn, Marti J Anderson, Hannah Calich, Matthew D M Pawley, Chris Fischer, Pelayo Salinas-de-León
The potential effectiveness of marine protected areas (MPAs) as a conservation tool for large sharks has been questioned due to the limited spatial extent of most MPAs in contrast to the complex life history and high mobility of many sharks. Here we evaluated the movement dynamics of a highly migratory apex predatory shark (tiger shark Galeocerdo cuvier) at the Galapagos Marine Reserve (GMR). Using data from satellite tracking passive acoustic telemetry, and stereo baited remote underwater video, we estimated residency, activity spaces, site fidelity, distributional abundances and migration patterns from the GMR and in relation to nesting beaches of green sea turtles (Chelonia mydas), a seasonally abundant and predictable prey source for large tiger sharks...
2017: PloS One
https://www.readbyqxmd.com/read/28821735/current-and-future-suitability-of-wintering-grounds-for-a-long-distance-migratory-raptor
#20
Christina Kassara, Laura Gangoso, Ugo Mellone, Gvido Piasevoli, Thomas G Hadjikyriakou, Nikos Tsiopelas, Sinos Giokas, Pascual López-López, Vicente Urios, Jordi Figuerola, Rafa Silva, Willem Bouten, Alexander N G Kirschel, Munir Z Virani, Wolfgang Fiedler, Peter Berthold, Marion Gschweng
Conservation of migratory species faces the challenge of understanding the ecological requirements of individuals living in two geographically separated regions. In some cases, the entire population of widely distributed species congregates at relatively small wintering areas and hence, these areas become a priority for the species' conservation. Satellite telemetry allows fine tracking of animal movements and distribution in those less known, often remote areas. Through integrating satellite and GPS data from five separated populations comprising most of the breeding range, we created a wide habitat suitability model for the Eleonora's falcon on its wintering grounds in Madagascar...
August 18, 2017: Scientific Reports
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