Biodiversity loss

Question 1

biological diversity

Answer 1

Describes a range of organisms on Earth

Question 2

Genetic biodiversity

Answer 2

Varations in genes that exist within species

Question 3

Ecological biodiversity

Answer 3

Diversity of ecosystems

Question 4

What is Convention on Biological Diversity (CBD)

Answer 4

an international treaty that was adopted at the Earth Summit in Rio de Janeiro in 1992. It is a legally binding agreement among countries to work together to conserve biological diversity.

Question 5

Objectives of CBD

Answer 5

Conservation of biological diversity
Sustainable use of its components
Fair and equitable sharing of benefits

Question 6

Ecosystem services

Answer 6

Benenfits humans get from ecosystems
E.G. pollination - Plant reproduction

Question 7

What are the biggest threats to biodiversity

Answer 7

Invasive species
Climate change
Pollution
Habit loss

Question 8

What are invasive species

Answer 8

organism that causes ecological harm to a new environment they are not native too

Question 9

Why are the introduced

Answer 9

Deliberate: E.g. Food, Sport, Control pests
Accendiental: E.g. Shipping, Escape

Question 10

example of Invasive species

Answer 10

Rabbits in Australia
— Introduced by Europeans, overgrazed vegetation, caused soil erosion, and displaced native species.

Question 11

Evaluation for Invasive species

Answer 11

Some introduced species may provide ecosystem services or support biodiversity under specific conditions.

Question 12

How is climate change threating biodiversity

Answer 12

Melting Ice and Sea Level Rise
Loss of Arctic sea ice threatens species like polar bears and walruses.
Rising seas flood coastal habitats like mangroves, salt marshes, and nesting beaches.

Question 13

Example of Climate change impacting biodiversity

Answer 13

polar bears artic region
swim longer distances to find ice, which increases exhaustion and drowning risk.

Question 14

Evaluation for polar bears

Answer 14

polar bear populations are showing signs of adaptability, at least in the short term. In certain areas, polar bears are beginning to forage on land-based food sources,

Question 15

Extinction risks

Answer 15

Species face extinction if climatically suitable habitat disappear

Question 16

Urban et al

Answer 16

Estimates biodiversity loss with climate change will range form 0 - 54%

Question 17

evaluate to Climate change on biodiversity loss

Answer 17

slow-acting threat compared to more immediate pressures like habitat destruction, pollution, and invasive species.

Question 18

Nutrients loading

Answer 18

Input of primarily Nitrate and Phosphorous espically in freshwater and marine

Question 19

What is Nutrients loading a result of

Answer 19

Agricultural runoff
Waste water discharge

Question 20

What does Nutrients loading cause

Answer 20

Eutrophication (Algae blooming)
Dead zones (Gulf of Mexico)

Question 21

reference for nutrients loading

Answer 21

Millennium Ecosystem Assessment (2005)

Question 22

Evaluation for pollution as a threat to biodiversity

Answer 22

its impacts are often more localized and reversible compared to threats like climate change or habitat destruction. In many cases, effective regulation and technological improvements

Question 23

what are the three types of habit loss

Answer 23

Destruction
Degration
Fragmentation

Question 24

Habitat destruction

Answer 24

Complete removal of habitat
E.g. Deforestation in Amazon for Cattle

Question 25

Habitat degration

Answer 25

Decline In quality due to pollution, invasive species and climate change E.g. Coral bleaching - ocean warming and acidification

Question 26

Habitat fragmentation

Answer 26

Broken into smaller isolated patches by roads and urban sprawls E.g. Urban sprawl around Nairobi National park

Question 27

Reference for habitat loss

Answer 27

Elizabeth et al 2010

Question 28

however point to habitat loss threating biodiversity loss

Answer 28

its effects can sometimes be mitigated through conservation and restoration efforts.