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الموضوع: Levels of Organization in an Ecosystem

  1. #1
    مشرفة الاقسام الاكاديمية الصورة الرمزية تمارا احمد
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    Jul 2011
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    افتراضي Levels of Organization in an Ecosystem

    Levels of Organization in an Ecosystem

    To understand the levels of belonging in an ecosystem, let us consider the diagram below.


    Individual, Species, Organism:
    An individual is any living thing or organism. Individuals do not breed with individuals from other groups. Animals, unlike plants, tend to be very definite with this term because some plants can cross-breed with other fertile plants.
    In the diagram above, you will notice that Gill, the goldfish, is interacting with its environment, and will only crossbreed with other gold fishes just like her.

    Population:
    A group of individuals of a given species that live in a specific geographic area at a given time. (example is Gill and his family and friends and other fishes of Gill’s species) Note that populations include individuals of the same species, but may have different genetic makeup such as hair/eye/skin colour and size between themselves and other populations.

    Community:
    This includes all the populations in a specific area at a given time. A community includes populations of organisms of different species. In the diagram above, note how populations of gold fishes, salmons, crabs and herrings coexist in a defined location. A great community usually includes biodiversity.

    Ecosystem:
    As explained in the pages earlier, ecosystems include more than a community of living organisms (biotic) interacting with the environment (abiotic). At this level note how they depend on other abiotic factors such as rocks, water, air and temperature.

    Biome:
    A biome, in simple terms, is a set of ecosystems in a geographic area.

    Biosphere:
    When we consider all the different biomes, each blending into the other, will all humans living in many different geographic areas, we form a huge community of humans, animals and plants, in their defined habitats. A biosphere is the sum of all the ecosystems established on Earth.

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  2. #2
    مشرف الصورة الرمزية غفران
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    افتراضي رد: Levels of Organization in an Ecosystem

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  3. #3
    مراقب عام الصورة الرمزية Eiman
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    افتراضي رد: Levels of Organization in an Ecosystem

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