Búsqueda de información:
libros de texto, libros de la biblioteca del colegio, páginas de internet. A medida que vayamos viendo en clase las categorías de animales, vosotros buscareis información sobre un animal de cada categoría para después trabajar en parejas, creando un documento único en el que se recogerá todas las fichas sobre animales de los dos miembros del equipo. Se pondrán de acuerdo para seleccionar los animales sobre los que se quiere investigar en cada categoría.
Hay 5 categorías de vertebrados y 6 de invertebrados , cada grupo deberá elaborar un total de 11 fichas. Tendrá los siguientes apartados que cada uno lo tendrá en su pendrive.
CADA APARTADO DEBE LLEVAR FOTOS RELATIVAS A LO QUE SE ESTÁ EXPONIENDO
A cannibal is an animal that feeds on others of its own species. This is not an animal unnatural characteristics: around 140 different species show cannibalistic tendencies under various conditions. Cannibalism is most common among lower vertebrates and invertebrates often due to a predatory animal mistaking one of its own kind for prey. But it also occurs among birds and mammals, especially when food is scarce.
In sexual cannibalism as recorded for example for the female red-back spider, black widow spider, praying mantis, and scorpion the female eats the male after mating (though the frequency of this is often overstated). The more common form of cannibalism is size structured cannibalism, in which large individuals consume smaller ones. Such size structured cannibalism has commonly been observed in the wild for a variety of taxa, including octopus, bats, toads, fish, monitor lizards, red-backed salamanders and several stream salamanders, crocodiles, spiders, crustaceans, birds (crows, barred owls), mammals, and a vast number of insects, such as dragonflies, diving beetles, back swimmers, water striders, flour beetles, caddisflies and many more.
Detritivores
Detritivores (also known as saprophages, detrivores or detritus feeders) are organisms that recycle detritus (decomposing organic material), returning it into the food chain. Earthworms are a well-known example of detritus feeders, eating rotting plant leaves and other debris. Groups of detritivorous animals include: millipedes, woodlice, dung beetles, dung flies and burying beetles.
Scavengers
The word scavenger, in zoology, refers to animals that consume already dead organic life-forms. Scavengers are useful to the ecosystem by feeding on and therefore breaking down dead animal and plant remains. The remains that are left behind by the scavengers are then used even further by decomposers. Well known scavengers include vultures, burying beetles, blowflies, and raccoons. Many large carnivores that hunt regularly--such as hyenas and lions--will scavenge if given the chance
