Biodiversity: Who cares?. A B Which do you like better?
-
Upload
rudolf-fisher -
Category
Documents
-
view
217 -
download
1
Transcript of Biodiversity: Who cares?. A B Which do you like better?
![Page 1: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/1.jpg)
Biodiversity:
Who cares?
![Page 2: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/2.jpg)
A B
Which do you like better?Which do you like better?
![Page 3: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/3.jpg)
What do you think biodiversity means?
![Page 4: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/4.jpg)
Bio =
BioBiodiversitydiversity
What does “Bio” mean?
![Page 5: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/5.jpg)
BioBiodiversitydiversity
Diversity = Variety
What does “Diversity” mean?
http://youtu.be/iThpkXWVeqE
![Page 6: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/6.jpg)
Why is biodiversity important?Why is biodiversity important?• Human beings are dependent for their health, well-being
and enjoyment of life on basic biological systems and processes.
• People get food and many medicines and industrial products from the wild and domesticated components of biological diversity.
![Page 7: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/7.jpg)
What is biodiversity
• Biodiversity is the variety of life in an area that is determined by the number of different species in that area.
• Biodiversity increases the stability of an ecosystem and contributes to the health of the biosphere.
![Page 8: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/8.jpg)
Threats to biodiversity
Habitat Fragmentation
Pollution
Species Introductions
Global Climate Change
Exploitation
![Page 9: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/9.jpg)
Habitat Fragmentation
• When habitats are destroyed or partially destroyed– Ex. Cutting down trees in forests to develop the
land
![Page 10: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/10.jpg)
Pollution
When humans place synthetic materials into the ecosystem carelessly
Ex- throwing a plastic bag into to lake or trash onto the ground
![Page 11: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/11.jpg)
Species Introductions
• Bringing a new species into an already established ecosystem. This could result in a predator-prey relationship– Ex: there was an Asian fish introduced into
Lakes in Chicago, this fish eats a tremendous amount of food, causing a depletion of resources available to other fish
![Page 12: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/12.jpg)
Global Climate Change
When a change in temperature results in the destruction of habitats
ex- ice caps are melting due to global warming, causing polar bears to lose their environments (they are now endangered species)
![Page 13: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/13.jpg)
Exploitation
• The over-usage of a species for unnecessary needs– Ex- fur coats require hundreds of animals to be
killed for a profit
– Ex- Elephants are currently endangered due to exploitation for their tusks made out of Ivory
![Page 14: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/14.jpg)
Threats to Biodiversity• Extinction and
population reductions– Pollution
– Climate change
– Invasive species
16 June 2010 Biodiversity.ppt 14
![Page 15: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/15.jpg)
Threats to Biodiversity
• Extinction is a process that happens when an entire species permanently disappears from the biosphere due to the death of the species’ last member.
• Endangered Species- any species who's numbers become so low that extinction is possible
![Page 16: Biodiversity: Who cares?. A B Which do you like better?](https://reader036.fdocuments.in/reader036/viewer/2022062407/56649e205503460f94b0bfcb/html5/thumbnails/16.jpg)
Threats to Biodiversity
• Threatened species – when a population of a species is likely to become endangered.
• Threatened
• Endangered
• EXTINCT