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CLASSIFICATION OF ANIMALS species

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CLASSIFICATION OF ANIMALS species * * * * * * * * * * ANIMALS HERBIVORE OMNIVORE CARNIVORE HERBIVORE Herbivory is a form of predation in which an organism, known as a ... – PowerPoint PPT presentation

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Title: CLASSIFICATION OF ANIMALS species


1
  • CLASSIFICATIONOF ANIMALS species

2
ANIMALS
HERBIVORE
OMNIVORE
CARNIVORE
3
HERBIVORE
  • Herbivory is a form of predation in which an
    organism, known as a herbivore, consumes
    principally autotrophs1 such as plants, algae
    and photosynthesizing bacteria. By that
    definition, many fungi, some bacteria, many
    animals, some protists and a small number of
    parasitic plants can be considered herbivores.
    However, herbivory is generally restricted to
    animals eating plants.

4
  • Fungi, bacteria and protists that feed on living
    plants are usually termed plant pathogens.
    Microbes that feed on dead plants are
    saprotrophs. Flowering plants that obtain
    nutrition from other living plants are usually
    termed parasitic plants. More generally,
    organisms that feed on autotrophs in general are
    known as primary consumers.

5
  • A herbivore is an animal that is adapted to eat
    plants and no meat. Although such animals are
    sometimes referred to as being vegetarian, this
    term is more properly reserved for humans who
    choose not to eat meat as opposed to animals that
    are unable to make such choices.

6
  • Our understanding of herbivory in geological time
    comes from three sources fossilised plants,
    which may preserve evidence of defence (such as
    spines), or herbivory-related damage the
    observation of plant debris in fossilised animal
    faeces and the construction of herbivore
    mouthparts.2

7
  • There is a misperception that if an animal is
    herbivorous, it represents less danger to humans
    than a carnivore (or, sometimes, no danger at
    all). This is not logically sound few animals,
    even carnivores, will seek humans as a food
    source, but any animal will attack a human if
    necessary to defend itself. For example, in
    national parks such as the United States'
    Yellowstone Park,

8
  • Herbivores form an important link in the food
    chain as they transform the sun's energy stored
    in the plants to food that can be consumable by
    carnivores and omnivores up the food chain. As
    such, they are termed the primary consumers in
    the food chain.

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10
CARNIVORE
  • A carnivore , meaning 'meat eater' (Latin carne
    meaning 'flesh' and vorare meaning 'to devour'),
    is an animal with a diet consisting mainly of
    meat, whether it comes from animals living
    (predation) or dead (scavenging).
  • In a more general sense, animals are loosely
    considered carnivores if their feeding behaviour
    consists of preying on other animals rather than
    grazing on plants. There are many predatory
    invertebrates, for example arthropods such as
    spiders or mantises and various species of
    predatory land snails and sea snails.

11
  • The designation "hypercarnivore" is used to
    describe animals that exclusively feed on animal
    tissue. Additionally, it is used in paleobiology
    to describe taxa of animals which have an
    increased slicing component of their dentition
    relative to the grinding component.1

12
  • Characteristics commonly 'associated' with
    carnivores include organs for capturing and
    disarticulating prey (teeth and claws serve these
    functions in many vertebrates) and status as a
    predator. In truth, these assumptions may be
    misleading, as some carnivores do not hunt and
    are scavengers (though most hunting carnivores
    will scavenge when the opportunity exists)

13
  • An obligate or true carnivore is an animal that
    must eat meat in order to thrive.2
    Hypercarnivores present specialized dentition for
    a meat-only diet. They may consume other products
    presented to them, especially animal products
    like eggs and bone marrow or sweet sugary
    substances like honey and syrup, but, as these
    items are not essential, they do not consume
    these on a regular basis.

14
  • True carnivores lack the physiology required for
    the efficient digestion of vegetable matter, and,
    in fact, some carnivorous mammals eat vegetation
    specifically as an emetic. The domestic cat is a
    prime example of an obligate carnivore, as are
    all of the other felids.3

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OMNIVORE
  • Omnivores (from Latin omne all, everything
    vorare to devour) are species that eat both
    plants and animals as their primary food source.
    They are opportunistic, general feeders not
    specifically adapted to eat and digest either
    meat or plant material exclusively.1

17
  • Although there are reported cases of herbivores
    eating meat matter as well as examples of
    carnivores eating plants, the classification
    refers to the adaptations and main food source of
    the species in general so these exceptions do not
    make either individual animals nor the species as
    a whole omnivores.

18
  • Most bear species are considered omnivores, but
    individuals' diets can range from almost
    exclusively herbivorous to almost exclusively
    carnivorous depending on what food sources are
    available locally and seasonally.

19
  • Polar bears can be classified as carnivores while
    pandas almost exclusively eat bamboo and are
    therefore herbivores, although giant pandas will
    eat some meat from time to time. Therefore, they
    are still considered a herbivore because they
    mainly eat plants.
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  • THANK YOU
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