Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity...
-
Upload
chastity-cameron -
Category
Documents
-
view
215 -
download
0
Transcript of Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity...
![Page 1: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/1.jpg)
Homework
•Text p.229 red q 1,2,3•Text p.232/3 q 1,2,3,4,5•P.232-3 q1,2,4,5• Interpreting diversity data worksheet•17.2 organic farming
![Page 2: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/2.jpg)
Species diversity and human activitiesAqa book p 229-30
![Page 3: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/3.jpg)
Homework
•Minimum of 1 paper per week done, marked and handed in.
•Ask any questions arising in class please
![Page 4: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/4.jpg)
Starter
•Q4 p.233
![Page 5: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/5.jpg)
Objectives
•What is the influence of deforestation and the impact of agriculture on species diversity?
![Page 6: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/6.jpg)
Influence of humans on species diversity•Make a list of reasons why diversity index
is low in agricultural ecosystems•Do the same for the impact of
deforestation
Now try q 1,2,3,4,5 p.230
![Page 7: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/7.jpg)
Agriculture;•Ecosystem controlled by humans who
select the plants to be grown on the whole•Little resources left for wild plants, so
fewer types of consumers as a result•Herbicides/Pesticides used to kill off wild
plants/animals•Woodland cleared reducing number of
habitats available•Hedgerow cleared reducing number of
habitats available•Diversity index therefore low
![Page 8: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/8.jpg)
Why do agriculture?
•More food can be produced•Food is cheaper to produce so prices are
lower•More development attracting more
business
![Page 9: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/9.jpg)
Deforestation;
•Reduces number of trees so fewer layers of plant available as habitats
•Less shelter and food for consumers•Reduces diversity
![Page 10: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/10.jpg)
Why deforest?
•Wood and land for homes to be built•Use land for agriculture•Reservoirs / hydroelectric schemes•Timber for export•Palm oil plantations (coffee, maize, soya
etc.)
![Page 11: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/11.jpg)
![Page 12: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/12.jpg)
![Page 13: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/13.jpg)
![Page 14: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/14.jpg)
![Page 15: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/15.jpg)
![Page 16: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/16.jpg)
Conservation is the study and protection of biodiversity and natural resources.
It is not just about preserving habitats and species as they are, although this does play a part in conservation.
Instead, it is more about actively and carefully maintaining a balance between ecological needs and human requirements, which are often in direct conflict with each other.
What is conservation?
![Page 17: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/17.jpg)
The biggest threats to biodiversity are all due to the effects of a rapidly increasing human population. They include:
habitat destruction – e.g. deforestation for urban development and agricultural land, global warming, mining and pollution
overexploitation – e.g. whaling, fishing and wildlife trade
competition from introduced species – e.g. grey vs. red squirrels in the UK, the Nile perch vs. cichlid fish in Lake Victoria, Uganda.
Threats to biodiversity
![Page 18: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/18.jpg)
The most recent of these was the Cretaceous–Tertiary Extinction Event 65 million years ago. This resulted in the extinction of about 50% of all species, including the dinosaurs, and paved the way for the rise of mammals.
Extinction has always been an ongoing feature of life on Earth, and is a natural consequence of evolution.
Since life began, there have been at least five mass extinction events – a sharp decrease in the number of species in a relatively short period of time.
Mass extinctions
![Page 19: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/19.jpg)
Conservation status
![Page 20: Homework Text p.229 red q 1,2,3 Text p.232/3 q 1,2,3,4,5 P.232-3 q1,2,4,5 Interpreting diversity data worksheet 17.2 organic farming.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dd95503460f94acf119/html5/thumbnails/20.jpg)
Conservation: true or false?