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Biotope: Gravel Pit
The forest has been cleared, the bridge is already in place, too. Only the road surface is missing.
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Structure of the Forest
Forests are more than an accumulation of trees. The individual tree is more than a valuable source of wood. From its roots to its crown, it offers habitats to a variety of the most different creatures. The older a tree, the more valuable it becomes to many forest inhabitants. And even in death it is still full of life. If you take a closer look at a forest, you notice that the plants grow to different heights. They form storeys like those of a house. At the top level there are only the big trees. From a bird’s perspective we see that the highest specimens in the forest form a closed canopy. In summer, the treetops resemble big parasols shading the forest floor. Depending upon how much sunlight filters into the depths, this has consequences for the forest vegetation.
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Habitats in Human Hands
Forests, hedges, heathlands or colourful meadows are the epitome of unspoilt nature for us.
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Large Herbivores
For a long time it was believed that, thousands of years ago, Central Europe was covered with almost uninterrupted primeval forests.
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Mammals I
When we talk about animals in everyday conversation, we mostly talk about mammals. Mammals live in water, on land and in the air. Countless species of the most diverse sizes and appearances populate our earth. A clear classification is not always possible because of their adaptation to their different habitats.
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Mammals I
When we talk about animals in everyday conversation, we mostly talk about mammals. Mammals live in water, on land and in the air. Countless species of the most diverse sizes and appearances populate our earth. A clear classification is not always possible because of their adaptation to their different habitats.
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Birds
This DVD from the Vertebrates series comprehensively introduces birds by means of various examples of indigenous, tropical and polar bird species. Among other things, it provides information on typical bird characteristics such as skeleton and bone structure, structure and function of the beak and feathers as well as the principle of light-weightness. Impressive close-ups of prepared bird bones as well as of a feather’s vane serve to illustrate these aspects. The adaptability of birds to the environments of air, land and water as well as to different kinds of food are shown by means of the examples of typical representatives of the species such as eagle and falcon, emu, duck, moorhen and kingfisher. Here, the pupils also learn about the relation between diet and shape of beak. The reproduction and breeding of birds is illustrated with impressive outdoor pictures of courtship and nest-building with different bird species, the hatching of a chick, the raising of grey herons up to the squabs’ first attempts at flying. Furthermore, the menu includes additional pictures as well as a tabular list of the different breeding times of altricial and precocial birds. Thus, this DVD offers flexibility and variety in the classroom and is especially suited for interactive learning.
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Reptiles
This DVD offers a clearly structured overview over reptiles with an emphasis on the following aspects: The origin of reptiles is proven by fossil finds from all over the world. The skeletons are proof that reptiles were not confined to life on land but were also adapted to water and the air. The typical common characteristics of reptiles, such as the coat of scales and a poikilothermic body temperature, as well as the extremely different appearances of poisonous snakes and constrictors, turtles, lizards and crocodiles are discussed in detail. The different methods of finding food both as a herbivore or as an ambush predator with the use of poison or with the help of a pit organ are shown. The “invention” of the amnion made the reptiles’ reproduction independent from water and enab- led them to lay their eggs on land.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Amphibians
More than 350 million years ago, the evolution of amphibians set in. Amphibians developed from fish – a first step towards life on land. Diverse reproduction strategies, manifold forms of appearance and a broad spectrum of sizes, ranging from the tiny Brazil litter frog to the giant salamander, constitute the special characteristics of the class of amphibians. The pupils learn about the different respiration techniques and the particularities of the amphibians’ circulatory system as well as about their defining characteristics and their repro- duction strategies. Moreover, the threat to amphibian species posed by environ- mental poisons and the climate change is also discussed. This DVD leads the pupils into the fascinating, unknown world of amphibians, which still remains to be fully researched.
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Fish
This DVD offers a clearly structured overview of fish with an emphasis on the following aspects: The typical body build of fish and their adaptation to the water habitat are shown. The fish skeleton proves that they are vertebrates. Their sense organs (eyes, nose, barbels, lateral lines) are adjusted for survival in water. The skin is characterised by different kinds of scales. Free water fish, ground fish and surface fish are distinguished from each other by three typical mouth and body shapes. Locomotion in the water is made possible by different kinds of fins. Respiration through gills is a typical feature of fish. Herbivores possess typical characteristics distinguishing them from carnivores. Swarm fish and loners display different behaviour patterns. The film is divided into six menu items (chapters), which may be individually accessed and worked on. For this purpose, additional pictures, diagrams, texts or selected short film clips are offered, which can simply be called up by remote control.
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Vertebrates
This DVD introduces the members of vertebrates group existing today, illustrated by various examples. The phyloge- netic development, which started in the primeval oceans, is shown in detail by means of homologous skeleton structures. The variations in the body’s basic structure in adaptation to the vertebrates’ respective needs, which resulted in today’s situation with vertebrates living in water, on land and in the air, are demonstrated by means of extant representatives of the class. The vertebrates group encompasses cartilage and bony fishes, amphibians, reptiles, birds and mammals. The modifications of those skeletal elements serving locomotion, from the fins of the fish to the wing span of the birds and the hands of mammals, are shown. This DVD is suitable for the topic of vertebrates for younger pupils or as a contribution to the topic of evolution illustrated by means of the development of vertebrates.
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