3. What is an
ecosystem?
An ecosystem is a system formed by a set of organisms,
the physical environment in which they live (habitat) and
the relationships between living organisms and the physical
space established between them. The species of living
beings that inhabit a given ecosystem interact with each
other and with the environment, determining the flow of
energy and matter that occurs in that environment.
01.
4. How are the
organisms of an
ecosystem
classified?
In an ecosystem there are a large number of
organisms with many different functions. There are 3
categories of organisms in ecosystems: producers,
consumers and decomposers.
5. 01. Producers
They are autotrophic organisms,
that is, they are capable of
generating their own food from
simple substances with the help
of sunlight. They are the basis of
the food chain.
Classification
of organisms
6. 02. Consumers
These are heterotrophic organisms, which means that they
do not have the capacity to manufacture their own food, so
they feed on other beings.
They can be classified as:
● Primary consumers or herbivores
● Secondary consumers or carnivores
● Tertiary and quaternary consumers or super carnivores
Classification
of organisms
7. 03. Decomposers
These are organisms that feed on
decomposing organic matter
from other living organisms.
Classification
of organisms
9. Terrestrial ecosystem
They occur on the earth's crust and out of water
in various types of relief: mountains, plains,
valleys, deserts. There are important differences
between them in temperature, oxygen
concentration and climate, so the biodiversity of
these ecosystems is large and varied. For
example: Forests, deserts or jungles.
Types of
ecosystems
10. Aquatic ecosystem
They are characterized by the presence of water as
the main component and are the most abundant type
of ecosystem: they constitute almost 75% of all
known ecosystems. This group includes the
ecosystems of the oceans and those of fresh or salty
inland waters. For example: rivers, lakes and lagoons.
Types of
ecosystems
11. Mixed ecosystem
These are ecosystems located in areas of
"intersection" of different types of terrain, for
example, in which aquatic and terrestrial
environments are combined. Mixed ecosystems, also
called hybrids, share characteristics of both terrestrial
and aquatic ecosystems, and are considered
transition zones between both types of ecosystems.
Types of
ecosystems
13. Characteristics
of an ecosystem
1. They vary in size and structure according to their type.
2. They can be terrestrial (in reliefs such as desert, mountain, prairie), aquatic (fresh or
saltwater) or mixed (such as those found in wetlands).
3. They can be natural or artificial (created and/or intervened by humans).
4. They are dynamic and variable environments that experience natural or artificial changes
and a constant flow of energy and nutrients between the factors that constitute them.
5. They are complex systems due to the interactions among their members. The greater
the biodiversity, the greater the complexity of the ecosystem.
6. They can be altered naturally (such as natural catastrophes) or by human action (such as
deforestation, pollution and indiscriminate fishing).
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18. Alternative resources
This is a selection of alternative resources whose style
fits that of this template:
Vectors
● 3d rendering of ecosystem I
● 3d rendering of ecosystem II
● 3d rendering of ecosystem III
● 3d rendering of ecosystem IV
● 3d rendering of ecosystem V
● 3d rendering of ecosystem VI
● 3d rendering of ecosystem VII
● 3d rendering of ecosystem VIII
● 3d rendering of ecosystem IX
● 3d rendering of ecosystem X
19. Photos
● Snow covered mountain against blue sky
● Beautiful underwater landscape
● Beautiful natural landscape of forest
● Beautiful piece of nature in daylight
● Small boat moored on blue calm lake
● Forest near a river landscape
Resources
Did you like the resources used in this
template? Get them for free on our
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Vectors
● 3d rendering of ecosystem I
● 3d rendering of ecosystem II
● 3d rendering of ecosystem III
● 3d rendering of ecosystem IV
● 3d rendering of ecosystem V
● 3d rendering of ecosystem VI
● 3d rendering of ecosystem VII
● 3d rendering of ecosystem VIII
● 3d rendering of ecosystem IX
● 3d rendering of ecosystem X
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