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5.2 extinction and protecting species (treaties and laws (Convention of…
5.2 extinction and protecting species
Extinction
background extinction
occurs naturaly
background extinction is slower than speciation rates
general overview
there have been mayor extinction events in earths history
some species are more vulnerable for extinction than other species
small populations
specialists
commercially vulnerable
specific habitats
island species
on average 1 out every million species go extinct per year
treaties and laws
ESA
US endangered species act
identifies and protects endangered species inside the US
CITES
convention on international trade in endangered species of wild fauna and flora
Bans hunting and treading endangered animals
it is regularly updated
Convention of Biological diversity
legally commits countries to lower extinction rates
no legal way to enforce it
USA didnt join
IUCN
International union on the conservation of nature
a union of scientists and NGOs that asses vulnerable habitats
Human impact
humans have risen extinction rates 100 time
this could lead to a mass extinction event in this decade
protection
seedbanks and botanic gardens
preserve genetic information of flora and seeds of endangered species
wildlife farms
reduces wild hunting and protects species
zoos and aquariums
preserve species that are on the verge of extinction
wildlife refugees
protects certain habitats inside an specific area