Before we think about ecosystems we need to understand some concepts:
- One population it is the set of individuals of the same species that live in a delimited place at the same time.
- Different populations that interact in a given space form a community.
- The community is the biotic factor, that is, the set of all living beings (different species) that we can find in this space.
- Non-living components of the medium such as water, sunlight, soil, gases, etc. are called abiotic factors.
Index
- What is an ecosystem?
- Aquatic Ecosystems
- Marine Ecosystems
- Terrestrial Ecosystems
What is an ecosystem?
O conceptof ecosystem is defined by the set formed by a community, that is, the biotic factors, in interaction with abiotic factors, generating an energy flow with defined trophic levels and also the cycling of nutrients.
Planet Earth is home to every living thing we know besides water, air, soil and atmosphere. THE bringing together all Earth's ecosystems is called biosphere.
Aquatic Ecosystems
Aquatic ecosystems encompass all existing ecosystems within oceans, rivers, lakes, ponds and even aquariums.
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Aquatic ecosystems are extremely important as they ensure the functioning of biogeochemical cycles hydrogen and oxygen, in addition to providing water for all living beings. We can divide these ecosystems into two large groups: marine (salt water) and sweets (fresh water).
Marine Ecosystems
Marine ecosystems are formed by all forms of life existing in the seas and oceans in interaction with the abiotic factors that are there. Communities in these ecosystems are classified in three ways according to their mode of locomotion:
- plankton: free and floating individuals (microscopic organisms)
- nekton: active swimmers (fish, sharks, etc.)
- bento: live at the bottom of the oceans, fixed or crawling (sponges, shrimp)
Terrestrial Ecosystems
The terrestrial ecosystems are those that live on the land, as the name implies, they can be forests, deserts, prairies. We usually divide terrestrial ecosystems into biomes, since they are so diverse.
Between the Brazilian terrestrial ecosystems we can highlight the Amazon rainforest and the Atlantic forestfor being the two largest Brazilian biomes. We can also mention the thick like hot spot of biodiversity in Brazil.
Read too: Endangered Ecosystems Lesson Plan
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