A4.2 Conservation of biodiversity

Question 1

A4.2.1 Biodiversity can include diversity in _____, _____, and _____

Answer 1

Ecosystem, species, genes

Question 2

A4.2.2 Millions of species have been discovered, named, and described, but there are many more species to be discovered

Question 3

A4.2.2 Evidence from _____ suggests that there are currently more species alive on Earth today than at any time in the past

Answer 3

Fossils

Question 4

A4.2.2 NOS: Classification is an example of pattern recognition but the same observation can be classified in different ways. Explain using “splitters” recognizing more species than “lumpers” in a taxonomic group

Question 5

A4.2.3 Causes of the current sixth mass extinction (not non-anthropogenic causes of previous mass extinctions)

Question 6

A4.2.3 Case study of North Island giant moas as an example of the loss of terrestrial megafauna

Question 7

A4.2.3 Case study of Caribbean monk seals as an example of the loss of a marine species

Question 8

A4.2.3 Case study of ~

Question 9

A4.2.4 Directly or indirectly anthropogenic causes of ecosystem loss

Question 10

A4.2.4 Case study of the loss of mixed dipterocarp forest in Southeast Asia

Question 11

A4.2.4 Case study of the loss of ~ in ~

Question 12

A4.2.5 Evidence for biodiversity crisis can be drawn from Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services reports and other sources

Question 13

A4.2.5 Results from reliable surveys of biodiversity in a wide range of habitats around the world are required

Question 14

A4.2.5 Surveys need to be _____ to provide evidence of change in species richness and evenness

Answer 14

Repeated

Question 15

A4.2.5 Surveys can be contributed by both _____ and _____

Answer 15

Experts, citizens

Question 16

A4.2.5 NOS: To be verifiable, evidence usually has to come from a published source, which has been peer-reviewed and allows methodology to be checked

Question 17

A4.2.5 NOS: Data recorded by citizens rather than expert scientists brings not only benefits but also unique methodological concerns

Question 18

A2.4.6 Causes of the current biodiversity crisis

Answer 18

-Human population growth (overarching cause)
-Hunting and other forms of over-exploitation
-Urbanization
-Deforestation
-Clearance of land for agriculture with consequent loss of natural habitat
-Pollution and spread of pests, diseases, and invasive alien species due to global transport

Question 19

A4.2.7 No single approach to conserve biodiversity is sufficient, and different species require different measures

Question 20

A4.2.7 Describe in situ conservation of species in natural habitats

Question 21

A4.2.7 Describe management of nature reserves

Question 22

A4.2.7 Describe rewilding and reclamation of degraded ecosystems

Question 23

A4.2.7 Describe ex situ conservation in zoos and botanic gardens

Question 24

A4.2.7 Describe storage of germ plasm in seed or tissue banks

Question 25

A4.2.8 Rationale behind focusing conservation efforts on evolutionarily distinct and globally endangered species (EDGE)

Question 26

A4.2.8 NOS: Issues such as which species should be prioritized for conservation efforts have complex ethical, environmental, political, social, cultural, and economic implications and therefore need tobe debated

Question 27

A4.2 Guiding Q: What factors are causing the sixth mass extinction of species?

Question 28

A4.2 Guiding Q: How can conservationists minimize the loss of biodiversity?

Question 29

A4.2 Linking Q: In what ways is diversity a property of life at all levels of biological organization?

Question 30

A4.2 Linking Q: How does variation contribute to the stability of ecological communities?