Biomaterial Database

[Recording the feeding behavior of freely moving animals using the example of freely diving Weddell seals (Leptonychotes weddellii)]. 1992

H Bornemann, and E Mohr, and J Plötz

Institut für Veterinär-Physiologie, Freie Universität Berlin.

During the antarctic summer 1990, the pattern of food intake in comparison to diving-activity was investigated on adult Weddell seals. Diving depths were recorded by a time-depth recorder (TDR). The TDR is a free programmable electronic datalogger, which can store data on up to 5 channels. It was fixed on the fur of the seal, ensuring that no longer lasting irritation of the animal was caused. The pattern of food-intake was monitored by measuring the jaw-movements, using strain gauges for recording the deformation of the muscles by mastication. After electronic amplification and filtering, the frequency of jaw-activity within a measuring period was recorded one channel of the TDR. By simultaneously observing the diving depths, these data may lead to conclusions about chewing patterns of the seal in water depths where they catch prey. The graph of these data and the mathematical evaluation by Fourier analysis and Plexogramme show a close correlation between diving depth and jaw-activity.

UI	MeSH Term	Description	Entries
D009068	Movement	The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.	Movements
D004242	Diving	An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.	Divings
D005247	Feeding Behavior	Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.	Dietary Habits,Eating Behavior,Faith-based Dietary Restrictions,Feeding Patterns,Feeding-Related Behavior,Food Habits,Diet Habits,Eating Habits,Behavior, Eating,Behavior, Feeding,Behavior, Feeding-Related,Behaviors, Eating,Behaviors, Feeding,Behaviors, Feeding-Related,Diet Habit,Dietary Habit,Dietary Restriction, Faith-based,Dietary Restrictions, Faith-based,Eating Behaviors,Eating Habit,Faith based Dietary Restrictions,Faith-based Dietary Restriction,Feeding Behaviors,Feeding Pattern,Feeding Related Behavior,Feeding-Related Behaviors,Food Habit,Habit, Diet,Habit, Dietary,Habit, Eating,Habit, Food,Habits, Diet,Pattern, Feeding,Patterns, Feeding,Restrictions, Faith-based Dietary
D005583	Fourier Analysis	Analysis based on the mathematical function first formulated by Jean-Baptiste-Joseph Fourier in 1807. The function, known as the Fourier transform, describes the sinusoidal pattern of any fluctuating pattern in the physical world in terms of its amplitude and its phase. It has broad applications in biomedicine, e.g., analysis of the x-ray crystallography data pivotal in identifying the double helical nature of DNA and in analysis of other molecules, including viruses, and the modified back-projection algorithm universally used in computerized tomography imaging, etc. (From Segen, The Dictionary of Modern Medicine, 1992)	Fourier Series,Fourier Transform,Analysis, Cyclic,Analysis, Fourier,Cyclic Analysis,Analyses, Cyclic,Cyclic Analyses,Series, Fourier,Transform, Fourier
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D046048	Seals, Earless	The family Phocidae, suborder PINNIPEDIA, order CARNIVORA, comprising the true seals. They lack external ears and are unable to use their hind flippers to walk. It includes over 18 species including the harp seal, probably the best known seal species in the world.	Halichoerus grypus,Mirounga,Pagophilus groenlandicus,Seal, Elephant,Seal, Harp,Seals, True,Phoca groenlandica,Phocidae,Seal, Gray,Earless Seal,Earless Seals,Elephant Seal,Elephant Seals,Gray Seal,Gray Seals,Harp Seal,Harp Seals,Seal, Earless,Seal, True,Seals, Elephant,Seals, Gray,Seals, Harp,True Seal,True Seals