● An `color{brown}("ecosystem")` can be visualised as a `color{violet}("functional unit of nature")`, where `color{violet}("living organisms")` interact among themselves and also with the surrounding `color{violet}("physical environment")`.
● `color{violet}("Ecosystem")` varies greatly in size from a `color{violet}("small pond")` to a `color{violet}("large forest")` or a `color{violet}("sea.")`
● `color{violet}("Many ecologists")` regard the entire `color{brown}("biosphere")` as a `color{violet}("global ecosystem,")` as a composite of all `color{violet}("local ecosystems")` on `color{violet}("Earth.")`
● Since this system is too much big and complex to be studied at one time, it is `color{violet}("convenient")` to `color{violet}("divide")` it into two basic categories, namely the `color{brown}("terrestrial")` and the `color{brown}("aquatic")`.
● `color{violet}("Forest, grassland")` and `color{violet}("desert")` are some examples of `color{brown}("terrestrial ecosystems")`; `color{violet}("pond, lake, wetland, river")` and `color{violet}("estuary")` are some examples of `color{brown}("aquatic ecosystems")`.
● `color{violet}("Crop fields")` and an `color{violet}("aquarium")` may also be considered as `color{brown}("man-made ecosystems.")`
● Important factors to study are the structure of the `color{violet}("ecosystem")`,the input `color{brown}("(productivity)")`, transfer of
energy `color{brown}("(food chain/web, nutrient cycling)")` and the output (`color{violet}("degradation")` and `color{violet}("energy loss")`).
● There are also the `color{violet}("relationships – cycles, chains, webs")` – that are created as a result of these `color{violet}("energy flows")` within the system and their `color{violet}("inter- relationship.")`
● An `color{brown}("ecosystem")` can be visualised as a `color{violet}("functional unit of nature")`, where `color{violet}("living organisms")` interact among themselves and also with the surrounding `color{violet}("physical environment")`.
● `color{violet}("Ecosystem")` varies greatly in size from a `color{violet}("small pond")` to a `color{violet}("large forest")` or a `color{violet}("sea.")`
● `color{violet}("Many ecologists")` regard the entire `color{brown}("biosphere")` as a `color{violet}("global ecosystem,")` as a composite of all `color{violet}("local ecosystems")` on `color{violet}("Earth.")`
● Since this system is too much big and complex to be studied at one time, it is `color{violet}("convenient")` to `color{violet}("divide")` it into two basic categories, namely the `color{brown}("terrestrial")` and the `color{brown}("aquatic")`.
● `color{violet}("Forest, grassland")` and `color{violet}("desert")` are some examples of `color{brown}("terrestrial ecosystems")`; `color{violet}("pond, lake, wetland, river")` and `color{violet}("estuary")` are some examples of `color{brown}("aquatic ecosystems")`.
● `color{violet}("Crop fields")` and an `color{violet}("aquarium")` may also be considered as `color{brown}("man-made ecosystems.")`
● Important factors to study are the structure of the `color{violet}("ecosystem")`,the input `color{brown}("(productivity)")`, transfer of
energy `color{brown}("(food chain/web, nutrient cycling)")` and the output (`color{violet}("degradation")` and `color{violet}("energy loss")`).
● There are also the `color{violet}("relationships – cycles, chains, webs")` – that are created as a result of these `color{violet}("energy flows")` within the system and their `color{violet}("inter- relationship.")`