A5026797834- Avian ecology and behavior
- Fish Ecology and Management Studies
- Animal Behavior and Reproduction
- Marine animal studies overview
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Marine and fisheries research
- Physiological and biochemical adaptations
- Animal Vocal Communication and Behavior
- Animal Behavior and Welfare Studies
- Ichthyology and Marine Biology
- Species Distribution and Climate Change
- Turtle Biology and Conservation
- Wildlife-Road Interactions and Conservation
- Primate Behavior and Ecology
- Biomimetic flight and propulsion mechanisms
- Human-Animal Interaction Studies
- Sports Performance and Training
- Marine and coastal plant biology
- Cephalopods and Marine Biology
- Marine Bivalve and Aquaculture Studies
- Effects of Environmental Stressors on Livestock
- Analytical Chemistry and Sensors
- Coral and Marine Ecosystems Studies
- Evolution and Paleontology Studies
Swansea University
2016-2025
Zoological Society of London
2021-2023
University College Dublin
2021-2023
Google (United States)
2022
Max Planck Institute of Animal Behavior
2021-2022
Helmholtz Zentrum München
2020
University of Wales
2005-2018
Columbus Oncology and Hematology Associates
2017
University of Florida
2017
GEOMAR Helmholtz Centre for Ocean Research Kiel
2015
Summary Time and energy are key currencies in animal ecology, judicious management of these is a primary focus for natural selection. At present, however, there only two main methods estimation rate expenditure the field, heart doubly labelled water, both which have been used with success; but also their limitations. The deployment data loggers that measure acceleration emerging as powerful tool quantifying behaviour free‐living animals. Given movement requires use energy, accelerometry...
Behavior is an important mechanism of evolution and it paid for through energy expenditure. Nevertheless, field biologists can rarely observe animals more than a fraction their daily activities attempts to quantify behavior modeling ecological processes often exclude cryptic yet behavioral events. Over the past few years, explosion research on remote monitoring animal using acceleration sensors has smashed decades-old limits observational studies. Animal-attached accelerometers measure...
Summary 1. The energetic costs of different behaviours are critical in modulating the behavioural ecology free‐living animals. Despite this, measurement energy expenditure field has proved difficult. 2. A new method with broad application for studies been proposed determining rate at which animals expend energy, based on measurements overall dynamic body acceleration (ODBA) through attachment miniature data‐loggers. This technique is easy to implement and promise be able resolve fine...
The metabolic costs of animal movement have been studied extensively under laboratory conditions, although frequently these are a poor approximation the operating in natural, heterogeneous environment. Construction "energy landscapes," which relate locality to cost transport, can clarify whether, what extent, and how properties attributable environmental heterogeneity. Although behavioral responses aspects energy landscape well documented some fields (notably, selection tailwinds by aerial...
Dynamic body acceleration (DBA) has been used as a proxy for energy expenditure in logger-equipped animals, with researchers summing the (overall dynamic - ODBA) from three orthogonal axes of devices. The vector (VeDBA) may be better so this study compared ODBA and VeDBA proxies rate oxygen consumption using humans 6 other species. Twenty-one on treadmill ran at different speeds while equipped two loggers, one straight orientation skewed, () was recorded. Similar data were obtained animals...
Abstract The paradigm‐changing opportunities of biologging sensors for ecological research, especially movement ecology, are vast, but the crucial questions how best to match most appropriate and sensor combinations specific biological analyse complex data, mostly ignored. Here, we fill this gap by reviewing optimize use techniques answer in ecology synthesize into an Integrated Biologging Framework (IBF). We highlight that multisensor approaches a new frontier biologging, while identifying...
Abstract It is fundamentally important for many animal ecologists to quantify the costs of activities, although it not straightforward do so. The recording triaxial acceleration by animal‐attached devices has been proposed as a way forward this, with specific suggestion that dynamic body (DBA) be used proxy movement‐based power. Dynamic now validated frequently, both in laboratory and field, literature still shows some aspects DBA theory practice are misunderstood. Here, we examine behind...
Wind tunnel and water tank experiments were carried out on a penguin model in order to optimise the shape attachment of back-mounted datalogger. Device-induced turbulence was minimised when unit placed most caudal position. Drag further reduced by shaping device match body contour. The hydrodynamic resistance package could be 65 % compared with an earlier unit. These results are discussed together from new studies kinematics energetics underwater swimming live instrumented penguins.
The volume of air trapped in the feathers and body density 36 species water bird were determined by displacement experiments. Body was higher plumage lower that most reliant on diving for foraging. Accordingly, we predict habitually have substantially reduced energy expenditure while underwater correspondingly aerobic dive limits than infrequent divers. This agrees with field observations. Following Boyle's law, are predicted to increase increasing depth due a reduction upthrust following...
Variation in the physical characteristics of environment should impact movement energetics animals. Although cognizance this may help interpret ecology, determination landscape-dependent energy expenditure wild animals is problematic. We used accelerometers animal-attached tags to derive 54 free-living imperial cormorants Phalacrocorax atriceps and construct an landscape area around a breeding colony. Examination space use further 74 birds over 4 years showed that foraging areas selected...
Rates of CO 2 production by breeding Jackass Penguins (means mass, 3170 g) were measured using doubly labeled water. Time budgets estimated from behavioral observations, and energy calculated for a typical 2—d period 24 h sitting on nest off the (which includes 9 foraging at sea). Distances traveled sea determined speed/time meters harnessed to five birds containing water, these measurements used energetic costs swimming. Field metabolic rates (as production) averaged 0.991 mL°g — 1 °h , or...
Researchers hoping to elucidate the behaviour of species that aren’t readily observed are able do so using biotelemetry methods. Accelerometers in particular proving particularly effective and have been used on terrestrial, aquatic volant with success. In past, behavioural modes were detected accelerometer data through manual inspection, but developments technology, modern accelerometers now record at frequencies make this impractical. light this, some researchers suggested use various...
Measurement of acceleration can be a proxy for energy expenditure during movement. The variable overall dynamic body (ODBA), used in recent studies, combines the elements recorded all three dimensions to measure and hence due However, simplicity ODBA affords it limitations. Furthermore, while accelerometry data loggers enable measures stored, recording at high frequencies represents limit deployment periods as result logger memory and/or battery exhaustion. Using bantam chickens walking...
Abstract The tortuosity of the track taken by an animal searching for food profoundly affects search efficiency, which should be optimised to maximise net energy gain. Models examining this generally describe movement as a series straight steps interspaced turns, and implicitly assume no turn costs. We used both empirical‐ modelling‐based approaches show that energetic costs turns in terrestrial aerial locomotion are substantial, calls into question value conventional models such correlated...