BioCon

Question 1

What is the Wildlife fund, 1989, definition of biodiversity?

Answer 1

The millions of plants, animals, and microorganisms, the genes they contain, and the intricate ecosystems they help build into the living environment.

Question 2

What is the Global Biodiversity Strategy, 1992, definition of Biodiversity?

Answer 2

Biodiversity is the totality of genes, species, and ecosystems in a region.

Question 3

What is the textbook definition of Biodiversity, by Sher and Primack, 2020?

Answer 3

The complete range of species and biological communities on earth, as well as the genetic variation within those species and all ecosystem processes.

Question 4

What species group make up the largest levels of biodiversity?

Answer 4

Insects

Question 5

What species groups make up the top 3 levels of biodiversity?

Answer 5

Insects - > 1,000,000
Other animals- > 370,000
Plants - > 366,000

Question 6

Where are the most species-rich environments?

Answer 6

• tropical forests
  -coral reefs
  -the deep sea
  -the Mediterranean climates
  -large tropical lakes and rivers

Question 7

What percentage of species that have ever existed are now extinct?

Answer 7

99.9%.

Question 8

What are the types of extinctions that can occur?

Answer 8

• Background extinction
• Mass extinction

Question 9

Describe background extinctions.

Answer 9

Natural consequence of natural selection.

Question 10

Describe mass extinctions.

Answer 10

Rapid extinctions, across a wide range of species groups and geographical areas.

Question 11

What is the estimated annual rate of extinction?

Answer 11

30,000 species per year.

Question 12

In 2022, how many species were threatened with extinction on the IUCN red lift?

Answer 12

Over 41,000 species.

Question 13

What are the percentages of species groups at risk for extinction on the IUCN 2022 red list?

Answer 13

-23.7% of mammals
-13% of birds
-41% of amphibians

Question 14

What is an example of a human activity contributing towards species extinction?

Answer 14

Increase of carbon dioxide, methane, and other trace gases in the atmosphere, increasing the planets surface temperature.

Question 15

What are the current CO2 levels in comparison to previous levels?

Answer 15

The current CO2 levels are above 415 Ppm, in comparison to CO2 levels of 300ppm that had not risen for hundreds of thousands of years.

Question 16

What are the impacts of increasing temperature?

Answer 16

-melting glaciers/polar ice
-rising sea levels
-earlier spring activity
-shifts in species ranges
-population declines

Question 17

What changes does water temperature increase cause on the ocean?

Answer 17

• coral reefs threatened/ bleaching
• zooplankton decreasing (base of food chain)
• changes in species

Question 18

What impacts does ocean acidification have?

Answer 18

-A causes a reduction in pH
-species such a clams,mussels,urchins and starfish have difficulty forming shells.
-impacts fisheries and food security.

Question 19

What is sustainable development?

Answer 19

Developments that meets the needs of the present without compromising the ability of future generations to meet their own needs.

Question 20

What is the Nature Restoration Law?

Answer 20

• A law to restore ecosystems for the people, planet and climate.
• > 80% of habitats in Europe are in decline.

Question 21

What is the aim of the Nature Restoration Law?

Answer 21

To restore wetlands, Rivers, forests, grasslands, marine ecosystems and the species that they host.