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07:19 Freie Universität Berlin, Zentraleinrichtung für AV-Medien German 1990

Beuteerwerb beim Serval (Felis serval)

Dargestellt werden Ausschnitte aus dem Tagesablauf eines Servalweibchens im Masai Mara Nationalreferat in Kenia gegen Ende der kleinen Regenzeit im Januar. In dieser Zeit fing die Katze vor allem Mäuse, nahm aber auch Heuschrecken, Nestlinge von Bodenbrütern und eine kleine Schlange. Das Weibchen durchstreifte bei den Aufnahmen fast nur Hochgras und orientierte sich bei der Jagd großteils akustisch. Gezeigt wird das Beschleichen und Belauern, Beutesprünge und das Verzehren der Beute. Bei der Jagd auf Mäuse wandte die Katze typische Such- und Verfolgungssprünge an, mit denen Mäuse in der dichten bodennahen Vegetation aufgescheucht wurden. Der Film zeigt nur Freilandaufnahmen.
  • Published: 1990
  • Publisher: Freie Universität Berlin, Zentraleinrichtung für AV-Medien
  • Language: German
10:45 Freie Universität Berlin, Zentraleinrichtung für AV-Medien German 1990

Gliedertiere auf Roridula - Zwischen Kommensalismus und Symbiose

Der Film zeigt die Bewegungsweisen der Gliedertiere auf der Pflanze und ihren Beuteerwerb. Es läßt sich z. Zt. noch nicht sicher entscheiden, inwieweit es sich hier um Fälle von Kommensalismus oder Symbiose handelt. Ein Vorteil für die Pflanze könnte darin bestehen, daß ihre Bewohner ihnen über ihren Kot benötigte Nährstoffe zuführen, so daß sich eine symbioseähnliche Situation ergäbe. Die Pflanzen scheinen aber keine weitgehende Abhängigkeit von ihren Bewohnern entwickelt zu haben: Sie wachsen und fruchten auch ohne Besatz mit Gliedertieren, obwohl aus der Haltung von Roridula bekannt ist, daß Exemplare mit Wanzen besser gedeihen. Die Aufnahmen erfolgten an natürlichen Standorten und im Labor.
  • Published: 1990
  • Publisher: Freie Universität Berlin, Zentraleinrichtung für AV-Medien
  • Language: German
24:22 Freie Universität Berlin, Zentraleinrichtung für AV-Medien German 1990

Biologie der Schwarzfersenantilope (Aepyceros melampus)

Der Film stellt die Biologie dieser Antilope im Masal Mara Nationalreservat in Kenia vom März bis zum September dar. In dieser Zeit wechseln die Tiere aus Ihren Trockenzeitgebieten in den Buschniederungen und Galeriewäldern in die offenen Grasländer, wobei sie ihre Nahrung von Laub auf Gras umstellen. Gezeigt werden Nahrungsaufnahme, Paarungsverhalten, Feindvermeidung, Mutter-Kindverhalten, das Verhalten der territorialen Böcke, Ausschnitte aus Rangkämpfen und einem Territorialkampf. Der Film enthält nur Freilandaufnahmen. Die Tonaufnahmen erfolgten separat und wurden angelegt.
  • Published: 1990
  • Publisher: Freie Universität Berlin, Zentraleinrichtung für AV-Medien
  • Language: German
07:36 Freie Universität Berlin, Zentraleinrichtung für AV-Medien German 1990

Paarungsverhalten beim Löwen (Panthera leo)

In der Fortpflanzungsbiologie der Löwen fällt die ungewöhnlich hohe Zahl von Paarungen auf, die zur Befruchtung der Weibchen notwendig sind: meist wird eine Löwin erst nach mehr als 1000 Paarungen schwanger. Der Film zeigt anfangs ein Paar mit einem postöstrischen Weibchen, das keine Paarungen mehr zuläßt. Am folgenden Tag sind die beiden von zwei weiteren Löwinnen begleitet, die vermutlich gerade erst in Östrus kommen und noch keine Kopulationen dulden, obwohl sie das Männchen häufig auffordern. Der zweite Teil des Films zeigt ein Paar während des zweiten Östrustages einer Löwin. Diese Tiere paarten sich in Abständen von 10 bis 30 Minuten, wobei anfänglich meist die Löwin die Paarung initiierte, während später auch das Männchen diese einleitete. Der Film enthält nur Freilandaufnahmen. Die Tonaufnahmen erfolgten separat und wurden angelegt.
  • Published: 1990
  • Publisher: Freie Universität Berlin, Zentraleinrichtung für AV-Medien
  • Language: German
21:46 IWF (Göttingen) German 1990

Analyse chaotischer Schwingungen - 1. Zustandsraum

Unbalanced rotors exhibit a characteristic mechanical oscillation. Using non-linear Duffing equations the dynamics are recreated in a computer model with springing and damping depending on the excitation amplitude. The curve is supplemented by synthesizer acoustics. Analysis using phase curve, trajectories, Poincaré sections, the 3D-Model of a strange attractor and Ueda-diagram.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) Silent film 1990

Agapornis roseicollis (Psittacidae) - Bereiten und Eintragen von Nistmaterial

Complex nest-building behaviour is an exeption with parrots. The peculiarity of the rosy-faced lovebird, the fact that it tucks nesting material into its outer feathers for tranportation, is one of the most unusual nest-building activities of the birds. The film shows peach-faced lovebirds with and without breeding experience which cut bark into thin strips, tuck the strips into their rump feathers and lower back feathers and carry them to the nesting box. The film documents the significance of individual experience both in the integration of genetically fixed behavioural elements into complex nest-building activities and for the synchronisation of pair behaviour.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) German 1990

Multimodale Kurzzeit-Verhaltenstherapie - Exposition in-vivo bei Zwangserkrankungen

The first part of the film concentrates on therapy planning with the aid of motivation, condition, function and life-history analysis of obsessional illness. The indications for exposure in-vivo are examined, and a way is shown of building up a patient's motivation for an exposure in-vivo as a part of the usually complex therapy in cases of obsessionally illness. Special attention is paid to particular features of interaction with the obsessional illness in the practice session.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1990

Multimodale Kurzzeit-Verhaltenstherapie - Exposition in-vivo bei Agoraphobie mit Panikanfällen

The first part of the film concentrates on therapy planning with the aid of motivational, condition, function and life-history analysis of agoraphobia. The grounds for in-vivo exposition are examined and a way is shown of building up a patient's motivation for exposure therapy. The second part of the film shows the in-vivo exposition procedure, and demonstrates a way of dealing with panic attacks in the session.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
13:40 IWF (Göttingen) English 1990

Analysis of Chaotic Dynamics - 2. Stability

The stability; the spacial behaviour of non-linear oscillations, is explored using Lyapunow exponentials and Ueda diagram. Bifurcations are shown. Very useful is the method of cell figures, which allows a quick calculation of long-term stability. Minimal changes of certain parameters decide wether the system behaviour is periodic or chaotic.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
13:40 IWF (Göttingen) German 1990

Analyse chaotischer Schwingungen - 2. Stabilität

The stability; the spacial behaviour of non-linear oscillations, is explored using Lyapunow exponentials and Ueda diagram. Bifurcations are shown. Very useful is the method of cell figures, which allows a quick calculation of long-term stability. Minimal changes of certain parameters decide wether the system behaviour is periodic or chaotic.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
11:56 IWF (Göttingen) English 1990

Stomatal Movement in Leaves of Commelina communis

Arrangement of the stomata on the lower and upper surface of leaves. In quick-motion: Opening and closing movements of individual stomata in time-lapse. Animated sequences of the mechanics of the opening movement, as well as ion accumulation in the vacuoles of the closing cells as cause of a lowered water potential.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
11:50 IWF (Göttingen) German 1990

Spaltöffnungsbewegungen in Blättern von Commelina communis

Anordnung der Spaltöffnungsapparate der Ober- und Unterseite des Blattes; in Zeitraffung: Öffnungs- und Schließbewegung einzelner Stomata; im Trick: Mechanik der Öffnungsbewegung sowie Ionenakkumulation in den Vakuolen der Schließzellen als Ursache für die Absenkung des Wasserpotentials.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
10:27 IWF (Göttingen) German 1990

Kristallisation von Polypropylen

Bildung und Wachstum kristalliner Überstrukturen in Polypropylen als Beispiel für die Erstarrung partiell kristallisierender Thermoplaste: Sphärolithe und Dendrite. Einfluß von Abkühlbedingungen, Molekülbau und Keimbildnern. Mikrokinematographische Zeitrafferaufnahmen am Heiz- und Kühltisch im Polarisationsmikroskop.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
10:25 IWF (Göttingen) English 1990

Crystallization of Polypropylene

Formation and growth of crystalline structures in polypropylene as example for solidification of partially crystalline thermo plastics. Spheroliths and dendrites, influence of cooling conditions, molecular structure and seed formation. Micro cinematography using heat controlled stands and polarization.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
16:11 IWF (Göttingen) German 1990

Bau und Fortpflanzung der Hydrozoa

Abgrenzung der Hydrozoa von Anthozoa, Scyphozoa und Cubozoa. Morphologie der Hydroidpolypen, vegetative Fortpflanzung, Arbeitsteilung (Fang-, Wehr-, Freß- und Geschlechtspolypen), Medusenbildung (Metagenese), geschlechtliche Fortpflanzung, Reduktion der Medusengeneration. Gezeigte Gattungen: Leuckartiara, Gonothyrea, Clava, Coryne, Cladonema, Eirene, Hydra, Gonionemus, Thecocodium, Aglaophenia, Hydractinia, Rathkea. Mit Zeitraffung.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
16:21 IWF (Göttingen) English 1990

Morphology and Reproduction of Hydrozoa

Demarcation of the Hydrozoa from the Anthozoa, Scyphozoa and Cubozoa. Morphology of the hydroid polyps, vegetative reproduction, division of labor (tentacular, defense, nutritive and reproductive polyps), medusa formation (metagenesis), sexual reproduction, reduction of the medusa generation. Species shown: Leuckartiara, Gonothyrea, Clava, Coryne, Cladonema, Eirene, Hydra, Gonionemus, Thecocodium, Aglaophenia, Hydractinia, Rathkea. With time-lapse cinematography.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
30:58 IWF (Göttingen) German 1990

Bodenerosion und Bodenerhaltung im Trockenfeldbaugebiet des Punjab

The film describes the problems of soil erosion in the northern drier parts of the Punjab in Pakistan. It shows some of the efforts of the Government of Pakistan to introduce and spread soil conservation measures in a region which is structured mainly by agricultural smallholdings. Erosional damage to the landscape and soil degradation due to traditional land use practices are shown. Such land practices are no longer appropriate because of the increased population pressure on the land. Different approaches to soil conservation in the area are also illustrated, i. e. improved pasture management, terracing of arable fields, afforestation and river bank stabilization.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
14:53 IWF (Göttingen) German 1990

Verhaltensweisen von Rindern - 2. Milchvieh im Laufstall

The pen is divided into different functional areas; the cows are free to move about, for instance, to the manger to feed; relationship among herd members is regulated through visual communication, among other methods; because of the less secure footing on slatted floors, the cattle are pushed to the limit of their adaptability: slipping in the context of various behaviors is the result (e. g. during social and comfort-seeking behavior); cows try by various "means" to adapt themselves to the situation.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
15:44 IWF (Göttingen) German 1990

Verhaltensweisen von Rindern - 3. Milchvieh im Anbindestall

Dairy cows enter the stall and are tied; different tethering systems are present; the cow's behavior is documented and in part compared between various tethering systems for the functional cycles feeding, comfort-seeking and social behavior, standing and mucking out, and laying down, lying, and standing up; injuries to the animal caused by the holding mechnism are shown.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
13:11 IWF (Göttingen) German 1990

Verhaltensweisen von Rindern - 1. Auf der Weide

Cows put out to pasture of the first fime after winter; locomotion and comfort-seeking behaviour on secure footing; feeding in a group, feeding behaviour of individuals; various social interactions; laying down, lying, and standing up. A bull checks cows in breeding herd for estrus; pursuing a cow and increasing approaches; copulation attempts; successful copulation.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1990

Schweinefest bei den Nalumin (Papua-Neuguinea)

In the village of Banolbil a pig ceremony is performed by means of which social and economic relationships are cultivated by meat distribution. The slaughtered pig is cut up, and the meat is cooked with vegetables in two earthen ovens. The pig's owner subsequently distributes the food. Part of it is eaten immediately; another part is taken home.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
21:47 IWF (Göttingen) English 1990

Analysis of Chaotic Dynamics - 1. Spacemodel

Unbalanced rotors exhibit a characteristic mechanical oscillation. Using non-linear Duffing equations the dynamics are recreated in a computer model with springing and damping depending on the excitation amplitude. The curve is supplemented by synthesizer acoustics. Analysis using phase curve, trajectories, Poincaré sections, the 3D-Model of a strange attractor and Ueda-diagram.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
08:56 IWF (Göttingen) English 1990

Reproduction and Embryonic Development of Lampreys (Lampetra fluviatilis, Lampetra planeri)

Environmental conditions for reproduction, building nesting trench and pairing (outdoor and aquarium photos), fertilization and development to larval pupation.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
18:01 IWF (Göttingen) German 1990

Instrumentelle Besamung von Bienenköniginnen

Natürliche Paarung auf Belegstellen. Technik der instrumentellen Besamung: Vorbereitung des Tiermaterials; Spermagewinnung; homogene Spermamischung; Besamungsvorgang.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
18:01 IWF (Göttingen) English 1990

Instrumental Insemination of Honey Bee Queens

Pairing, techniques of insemination, preparation of material, collection of sperm, ensuring homogeneity, insemination.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
09:13 IWF (Göttingen) German 1990

Ein kontinuierliches Bioreaktorsystem zur Herstellung von viralen Vakzinen

Production of viral antigen in a continuous system. Animal cells are fermented with continuous supply of a nutrient medium. After a certain cell concentration is achieved the suspension is infected by the virus in a second fermenter. Division of cells and cell remainders by tangential filtration, removal of low molecular substances and concentration of the viral suspension.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1990

Schweineopfer bei den Nalumin (Papua-Neuguinea)

The condition of the severely ill Senemal from the village of Banolbil should experience improvement as the result of a pig sacrifice, through which the spirits causing the damage should be calmed. Two slaughtered pigs are cut up and cooked with vegetables and special ritual plants in two earthen ovens. The participants in the sacrificial ceremony, close relatives and friends of the ill person serve themselves food after it has been cooked.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) English 1990

Biology of the European Mole (Talpa europaea)

European Mole. Swimming, digging, formation of mole-hill, tunnels, hunting and eating prey, defecation, sleeping quarters, young moles in the nest, sensory organs, special morphology, skeleton, intrusion of a bee-nest, enemies.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) Silent film 1990

Agapornis roseicollis (Psittacidae) - Balz und Kopulation

Parrots live almost without exception in individualized permanent monogamous pair bonds. The particular intensity of its pair bond behaviour has given the genus Agapornis the name of "lovebirds". The film shows the courtship attempts of an inexperienced breeding pair as well as the courtship and copulation of a very experienced breeding pair. The film documents the significance of individual experience both in the integration of genetically fixed behavioural elements into complex courtship activities and for the synchronisation of pair behaviour.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection ÖWF (Wien) German 1990

Treffen der 'Alpenregion der Schützen'

In 1975 South Tyrolian, North Tyrolian and Bavarian "Schützen" (riflemen) founded a community of the "Schützen" of the Alpine region and decided to meet annually. The film shows marches, speeches, open-air mass and parade on occasion of the meeting at Garmisch-Partenkirchen, Bavaria, in August 1986.
  • Published: 1990
  • Publisher: ÖWF (Wien)
  • Language: German
Offline Collection ÖWF (Wien) German 1990

Trommelrhythmus der Bayerischen Gebirgsschützen

Starting from the assumption that rhythmical ways of behaviour occur in all higher living creatures Otto Koenig demonstrates by means of film shots of a meeting of the "Alpenregion der Schützen" (alpine region of riflemen) his thesis that (military) equal step is achieved by drumming rhythm. (Partly slow-motion).
  • Published: 1990
  • Publisher: ÖWF (Wien)
  • Language: German
Offline Collection IWF (Göttingen) German 1990

Sympetrum depressiusculum (Libellulidae) - Fortpflanzungsverhalten in Massenansammlungen

The appearance in vast numbers of Sympetrum depressiusculum clearly illustrate the events of the day of this species. In the morning tandem formation takes place. Around midday the tandems arrive reproduction waters and lay eggs. After the separation the dragonflies search favourable places, were they spend the rest of the day by searching food. At this places the animals also spend the night. Slow-motion frames.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
11:15 IWF (Göttingen) German 1990

Die Septierung des Herzens

Die Entwicklung des Warmblüterherzens wird verfolgt vom Stadium des geraden Herzschlauches bis zum Abschluß der Septierung. Im einzelnen werden behandelt die Bildung der atrioventrikulären Septen, die Unterteilung der Ausflußbahn, die Rückbildung der Crista prima und die Entwicklung des Kammerseptums. Trick, mikrokinematographische Aufnahmen, rasterelektronenmikroskopische Bilder.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1990

Biologie des Maulwurfs (Talpa europaea)

Europäischer Maulwurf. Schwimmen, Graben, Entstehen eines Maulwurfhaufens, Laufen im Gang, Erbeuten und Fressen von Nahrungstieren, Defäkation, Schlafnest, junge Maulwürfe im Nest, Sinnesorgane, morphologische Besonderheiten, Skelettbau, Wiesenhummelnest im Maulwurfsbau, Feinde.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
11:15 IWF (Göttingen) English 1990

Cardiac Septation

The evolution of the heart of warm-blooded animals is followed from the stage of a straight cardiac tube up to completed septation. The following is dealt with in greater detail: the formation of atrioventricular septa, the parts of the outflow tract, the involution of the crista prima and the evolution of the interventricular septum. Animation, microcinematographic shots, pictures obtained by a scanning electron microscope.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: English
14:39 IWF (Göttingen) German 1990

Stahlbeton-Druckglieder - Einführung zum Tragverhalten - 3. Stützen mit mäßiger und großer Schlankheit

The fundamental physical phenomena involved in the supporting and breaking processes of reinforced concrete supports can only be studied under real conditions at enormous expense. The laboratory for experimental statics at the University of Bremen recorded breaking tests done on micro-concrete models of relatively narrow and very narrow concrete supports. The causes and effects of the narrowness of these supports and of their load eccentricity on the supporting characteristics of the concrete are shown in a test series, giving a "pre-mathematical" insight into the complex support characteristics of structures of this kind.
  • Published: 1990
  • Publisher: IWF (Göttingen)
  • Language: German
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