reasons to maintain biodiversity

Question 1

ecological reason to maintain biodiversity

Answer 1

loss species makes ecosystem unstable

keystone species important to keep habitat stable
- eg loss otters so more sea urchin so less kelp so no longer habitat or food

is loose apex then overgrazing and land degredation

Question 2

economic reason to maintain biodiversity

Answer 2

natural world source of drugs, not found all yet

if not genetic diverse plant breeders can make new varieties so less income

maintain soil structure

Question 3

aesthetic reason to maintain biodiversity

Answer 3

ecotourism important source income
- whale watching generated £1bill in 2008

natural world provides relaxation and inspiration to writers etc