biodiversity

Question 1

What is species diversity?

Answer 1

= number of different species and individuals within a community

Question 2

What is species richness?

Answer 2

= number of different species, in a community

Question 3

What is biodiversity?

Answer 3

= describe a range of habitats
= a decrease in diversity is a concern, caused by human activity

Question 4

How does farming reduce biodiversity?

Answer 4

= destruction of hegdes- provides habitat, and prevents predators
= selective breeding: reduces biodivertsity, breeding one type of plants, lower gene pool choosing only selective advantages
= monocultures: only growing one plant species, attract the same insects and lower diversity
= overgrazing
= ponds filled wetlands drained, provide space for farming

Question 5

What is an index of diversity?

Answer 5

= measure of species diveristy, calculaton to measure the number of individuals within each species and number of species

Question 6

Why may there be low amounts of a paerticular species?

Answer 6

= competition
= more prey
= less food
=less oxygen for respiration
= less habitats
=