This document discusses several key topics related to conservation, including species extinction, habitat destruction, invasive species, poaching, and endangered species. It notes that species extinction is the end of an organism or group and can be caused by natural or human-related factors like pollution, exploitation, and habitat destruction, which is a primary driver of species extinction due to human activity. Invasive species are introduced outside their normal habitat and can negatively impact ecosystems. Poaching of endangered species still occurs for traditional medicine, food, and profit despite laws against hunting threatened species. The IUCN Red List categorizes extinction risk for species.
3. Introduction
Conservation is based on the resource use, the allocation and
protection.
Its first objective is to keep the biological diversity.
Its second objective is the conservation of the energy.
The people who practices the conservation are named
conservationists.
4. Species extinction
Extinction is the end of an organism or a group of
them.
The moment of the extinction is normally considered
as the death of the last survivor of the species.
5. Causes of the extinction
Natural causes
Aging
Illness
Other animal competence
Natural catastrophes
Fire
Drought
Hurricanes
6. Causes of the extinction
Not natural causes
Pollution
Poaching
Exploitation
Ignorance
7. Habitat destruction
Habitat destruction means the natural habitats that for different
reasons are unable to be used by the species.
One of the reasons of the destruction is the human activity.
Habitat destruction is a primary cause of species extinction.
8. Impact on organisms
Extinction becomes more likely
Decrease the range of certain organisms
populations
9. Solutions
Remain intact different sections of natural habitat
Educate the public about the importance of the nature
Considering adding services that provide the natural
habitats prosperity
10. Invasive species
They are species that have been introduced in a place that is not their
usual habitat
These species produce changes to the composition and the structure of
the ecosystem
Humans have changed their habitats, voluntarily or involuntarily
11. Conditions that lead to invasion
Fast growth
Rapid reproduction
High dispersal ability
12. Stages of the invasion
0 – No danger
1 – Traveling
2 – Introduced
3 – Localized but rare
4a – Widespread but rare
4b – Localized and dominant
5 – Widespread and dominant
13. Poaching
It is the illegal taking or hunting of a big number of organisms, especially
these who are considered endangered species
There are a lot of reasons to punish the poaching
Illegal logging is also another form of poaching
For example, in Philippines there are 400 animal endangered species that
are illegal to hunt
14. Traditional Chinese medicine
It often incorporates ingredients from plants, animals
and minerals
Parts of endangered species are used
Poachers sell parts of these species in the black market
15. Slips of authority
In Africa, although hunting for ivory was banned,
poaching of elefants continues.
In the USA some endangered species are only banned
from fishing in a few states
16. Endangered species
These species are at risk of becoming extinct, because for
different reasons
There’s a list that has calculated the percentage of endangered
species around the world (The IUCN Red List)
17. IUCN Red List
Extinct: Woolly mammoth, Dusky Seaside Sparroow
Extinct in the wild: Hawaiian Crow, Wyoming Toad
Critically endangered: Mountain gorilla, Bactrian Camel
Endangered: Blue whale, Giant panda
Vunerable: Cheetah, Lion
Near threatened: American bison, Tiger shark
Least concern: Pigeon, Giraffe