Andy Threatened Species Presentation

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This student presentation focuses on 3 species: 1 which is extinct, 1 threatened with extinction, and 1 which has recovered from threatened extinction. Aligns with IBDP ESS-SL Topic 4.2: Evaluating Biodiversity and Vulnerability.

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Extinct Species

Tasmanian Tiger

Where species was found

• Originally found in Tasmania

• Also found in parts of south Australia

• Officially extinct in wild in 1933

Reasons for extinction

• Outcompeted in mainland due to Dingoes

• Hunting-Ivory and Entertainment• Disease• Developments cause loss of prey

Further Information

• IUCN declared it EX in 1972• Impossible for species to recover• It is a marsupial not a dog!!!!!

Endangered Species

Siberian Tiger

Global Distribution

• Live in South East of Russia

• 350-450 tigers only! CR

• Were found in China and Mongolia

Reasons for becoming endangered

• Poaching for fur and Medicine

• Habitat loss-Logging + Development

Conservation efforts

• Laws against tiger killing for medicine

• Siberian tiger project:• Scientist analyzing tiger

patterns• Gives better insight on what

needs to be protected• Protecting tigers natural

habitat

Bald Eagle

Recovered Species

Location Location

• found in USA• Canada• Alaska• Northern Mexico

Reasons for previously being endangered

• Habitat destruction, degradation

• Illegal shooting – EAGLES EATING LIVESTOCK

• Contamination of food source (DDT)

• Was at EN

Why it is not endangered anymore

The Bald Eagle prevention Act:

• Prohibited killing and selling• No possession of species• Now at LC• Captive breeding• Nest site protection

(breeding season)

Citation• http://www.dpiw.tas.gov.au/inter.nsf/webpages/bhan-53777bEndangered: Siberian TigerCitation:

http://www.tigersincrisis.com/siberian_tiger.htmRecovered: Bald EagleCitation: http://www.fws.gov/midwest/eagle/recovery/biologue.html , http://www.wcsrussia.org/Projects/SiberianTigerProject/tabid/1222/language/en-US/Default.aspx -Siberian tiger conservatin help

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