Understanding Planet as an Ecosystem.
Understanding Planet as an Ecosystem. Earth is an ecosystem as a larger scale.
What is an ecosystem?
Ecosystem refers to an interconnected system.
It’s a biological community that involves interactions between the organisms and their physical environment.
These organisms include humans, animals, micro-organisms, etc. Anything that qualifies to be a living organism.
There are various types of ecosystems. Namely:
- Forest Ecosystems
- Grassland Ecosystems
- Desert Ecosystems
- Tundra Ecosystems
- Freshwater Ecosystems
- Marine Ecosystems
These ecosystems have been classified as per their vegetation types and nature, climatic conditions as well as water type.
They can be subdivided into various other groups when being very specific of an ecosystem in a particular area.
What connects living organisms and their physical environment ?
They are connected by the nutrients cycles and energy flows.
Everything in our planet depend on another thing for basic needs such as food, habitat, reproduction, dispersal, etc.
What happens to this ecosystem when one species is destroyed or goes extinct?
As we have seen we are a connected system. So our survival and quality of life relies on the connections among us. So when one thing is removed, we will surely feel the inbalance.
Food chain vs Food Web in the ecosystem
Foodchain is a linear sequence of organisms which starts from producer organisms and ends with decomposer species. While foodweb is a connection of multiple food chains and follows different lines.
Food web helps understands representation of the energy flow through different organisms in an ecosystem.
In both food chains and food webs, we have producers, consumers and decomposers.
If producers reduced, consumers will have nothing to consume and decomposers will have alot to decompose due to high rates of death as a result of hunger.
The producers need help from insects and other animals so as to disperse, fertilise and reproduce. If these organisms are not present to aid in this process. Producers will eventually die. So there will be no production of food. And the effects will be felt along the chain and web.
Are humans affected directly by the extinction of species in our ecosystem ?
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