why are species disappearing?
DESCRIPTION
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 PresentationTRANSCRIPT
![Page 1: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/1.jpg)
Check it out!Pass back the new objective
sheet and the permission slip!
![Page 2: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/2.jpg)
Armand Bayou Nature Center
![Page 3: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/3.jpg)
Homework tonight Worksheet – due next
class! Permission slip and
$15 due asap!
![Page 4: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/4.jpg)
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?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/5.jpg)
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?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/6.jpg)
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?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/7.jpg)
Hunting: Pet Trade
![Page 8: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/8.jpg)
Slow loris – not a good pet. Just no.
![Page 9: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/9.jpg)
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?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/10.jpg)
Competition with introduced species Chinese Tallow Balloon vine
Fire ants
![Page 11: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/11.jpg)
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?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/12.jpg)
Water hyacinth and chinese tallow trees
![Page 13: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/13.jpg)
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?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/14.jpg)
Habitat Loss Similar terms:
Habitat alteration Habitat
fragmentation
![Page 15: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/15.jpg)
Superstitious beliefs
![Page 16: Why are species disappearing?](https://reader035.vdocument.in/reader035/viewer/2022062305/5681668c550346895dda5090/html5/thumbnails/16.jpg)
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?