Results 71 to 80 of about 1,220 (178)

Biologicals [PDF]

International Journal of Rheumatology, 2012
de Carvalho, Jozélio Freire, Appenzeller, Simone, Shoenfeld, Yehuda   +2 more
openaire   +2 more sources

Development of a non-invasive heart rate measurement method for sea turtles with dense keratinous scutes through effective electrode placement

Frontiers in Physiology
Measuring the heart rate of sea turtles is important for understanding their physiological adaptations to the environment. Non-invasive methods to measure the electrocardiogram (ECG) of sea turtles have been developed by attaching electrodes to their ...
Ayaka Saito, Kino Sakai, Megumi Kawai, Lyu Lyu, Kazunari Kameda, Hiromi Kudo, Katsufumi Sato, Kentaro Q. Sakamoto   +7 more
doaj   +1 more source

Novel insights into sex-specific differences in heart rate variability and autonomic nervous system regulation during spawning behavior in chum salmon (Oncorhynchus keta) revealed by re-analysis of ECG logger data

Frontiers in Physiology
This study reanalysed electrocardiogram (ECG) data collected in a previous study on chum salmon to explore sex-specific differences in heart rate variability (HRV) and autonomic nervous system regulation during spawning.
Yuya Makiguchi, Takaaki K. Abe, Masaki Ichimura   +2 more
doaj   +1 more source

Multi-Sensor Assessment of Pigeon Flight Behavior: Role of Biomechanical and Landscape Characteristics

Sensors
Understanding how birds adjust their flight in response to biomechanical characteristics and environmental conditions can be useful for interpreting homing behavior.
Flavia Forconi, Ilenia De Meis, Giacomo Dell’Omo, Valentina Camomilla, Giuseppe Vannozzi, Maurizio Schmid, Silvia Conforto, Daniele Bibbo   +7 more
doaj   +1 more source

Annual survival rates of satellite-tracked adult European honey buzzards (Pernis apivorus) based on the Kaplan-Meier estimator and its probabilistic extension

Raptor Journal
The annual survival rate of adult raptors is an important parameter in population dynamics and is needed to derive measures for population stability and conservation management. Here we studied adult European honey buzzards (Pernis apivorus), a migratory
Meyburg Bernd-Ulrich, Gries Benno
doaj   +1 more source

Satellite tracking of tiger sharks in the Eastern Central Atlantic reveals varied space-use patterns and ocean-basin connectivity

Frontiers in Marine Science
Large-bodied sharks, including the tiger shark (Galeocerdo cuvier), play crucial roles as top predators in marine ecosystems, regulating lower trophic-level populations and connecting ecosystems across vast distances. However, elasmobranchs, particularly
Zeddy T. A. Seymour, Francesco Garzon, Francesco Garzon, Ze Luis Monteiro, Rachel T. Graham   +4 more
doaj   +1 more source

State‐space models and inference approaches for aquatic animal tracking with passive acoustic telemetry and biologging sensors

Methods in Ecology and Evolution
Passive acoustic telemetry systems are widely deployed to track animals in aquatic environments. However, investments in integrative methods of data analysis have remained comparatively limited, with current workflows typically considering individual ...
Edward Lavender, Andreas Scheidegger, Helen Moor, Carlo Albert   +3 more
doaj   +1 more source

Animal geolocation with convolution algorithms in Julia and R via Wahoo.jl

Methods in Ecology and Evolution
Animal geolocation is the core of movement ecology. In aquatic ecosystems, electronic tagging and tracking technologies, such as passive acoustic telemetry systems and biologging sensors, are widely deployed. However, statistical estimation of individual
Edward Lavender, Carlo Albert, Andreas Scheidegger   +2 more
doaj   +1 more source

Rapid prototyping and 3D printing of antarctic seal flipper tags

Wildlife Society Bulletin, 2019
Recent miniaturization of biologging devices has enabled widespread efforts to document the vertical and horizontal movements of pinnipeds; however, the attachment methods have been slower to evolve.
Greg Frankfurter, Roxanne S. Beltran, Matthew Hoard, Jennifer M. Burns   +3 more
doaj   +1 more source

Efficient statistical inference of turning points in animal movement data

Methods in Ecology and Evolution
Recent years have seen a proliferation of high‐frequency animal movement data, often at greater than 1 Hz, allowing us to gain much greater insight into behaviour than with lower frequency data.
Abdulmajeed F. Alharbi, Paul G. Blackwell, Abdulaziz Alagaili, Nigel C. Bennett, David Michael Scantlebury, Jonathan R. Potts   +5 more
doaj   +1 more source