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HUMAN INFLUENCES ON BIOLOGICAL DIVERSITY
By Jose Juan Hernández Mota 41BBT, SustainableDevelopment

1. List 4 ways humans have decrease Biodiversity.
a) Overfishing
b) Agriculture
c) Hunting
d) Urban sprawl
2. How manyspecies have gone extinct since 1500 AD?
784 species.
3. According to the authors, what are the ideal laboratories for studying natural selection?
Cities.
4.What are the 3 valuable properties of business parks?
Open spaces
Buildings turned into natural areas
Quiet nights
5. Explain how “green roofs” provide anecosystem.
In those roofs have been found many species of insects.
6. Do urban settings and wild habitats have similar selective pressures?
The approach of animals tohumans in cities is equal to the approach to predators in natural habitats.
7. What type of pollution does the author use to explain how these urban settings provide aselective pressure?
Noise pollution.
8. Was the adaptation of the song bird a genotype-specific result or a phenotype already present?
It was present because intheir natural habitat they had to deal with its noises as well.
9. Does man-made habitats have higher biological diversity?
Depends on the animals, if they are biganimals, their biological diversity is not very high, but with smaller animals it is high.
10. Which is better urban or suburban?
Suburban because it has areas ofwood and exotic species.
11. Can certain bacteria clean polluted wastes? If so, where were they discovered?
Yes, in agricultural soils and in the Baltic Sea.