why are species disappearing?

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Check it out! Pass back the new objective sheet and the permission slip!

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Why are species disappearing?. Hey – if we don’t know why it’s broke, we can’t fix it!. What’s the difference?. Threatened : vulnerable to endangerment in the near future - PowerPoint PPT Presentation

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Page 1: Why are species disappearing?

Check it out!Pass back the new objective

sheet and the permission slip!

Page 2: Why are species disappearing?

Armand Bayou Nature Center

Page 3: Why are species disappearing?

Homework tonight Worksheet – due next

class! Permission slip and

$15 due asap!

Page 4: Why are species disappearing?

Why are species disappearing?

Hey – if we don’t know why it’s broke, we can’t fix it!

Page 5: Why are species disappearing?

What’s the difference? Threatened: vulnerable to endangerment in

the near future

Endangered: at risk of becoming extinct because it is either few in numbers, changing environmental conditions or predation

Extinct- the death of all individuals of a species

Page 6: Why are species disappearing?

Hunting/Fishing

Hunting to eat = subsistence hunting

Bushmeat in Africa and South/Central America

Commercial Fishing, shrimping, crabbing, oystering

Page 7: Why are species disappearing?

Hunting: Pet Trade

Page 8: Why are species disappearing?

Slow loris – not a good pet. Just no.

Page 9: Why are species disappearing?

Commercial hunting Poaching = Hunting

the wrong Species At the wrong time In the wrong

amounts In the wrong places

Page 10: Why are species disappearing?

Competition with introduced species Chinese Tallow Balloon vine

Fire ants

Page 11: Why are species disappearing?

Scientists estimate that every year in the United States alone, cats kill 1.4-3.7 billion birds and approximately 12 billion small mammals, including rabbits, squirrels and chipmunks.

Feral animals (escaped from domestication)

Page 12: Why are species disappearing?

Water hyacinth and chinese tallow trees

Page 13: Why are species disappearing?

Pollution

DDT – Bald Eagle/Brown pelican

Beluga whale – PCB’s Biomagnification –

accumulation of toxins as they move up the food chain

Page 14: Why are species disappearing?

Habitat Loss Similar terms:

Habitat alteration Habitat

fragmentation

Page 15: Why are species disappearing?

Superstitious beliefs

Page 16: Why are species disappearing?

Check for understanding

What is the #1 reason that species become endangered?

How is a superstitious belief about an animal different from the medicinal argument for protecting a species?

What is biomagnification?What is the difference between subsistence

hunting and commercial hunting?How is hunting different from poaching?