Unit 2 Biodiversity

Question 1

What is ecosystem diversity?

Answer 1

the number of different habitats in an available given area.

Question 2

What is species diversity?

Answer 2

the number of different species in an ecosystem and the balance of evenness of the population sizes of all species in the ecosystem

Question 3

what is richness?

Answer 3

the total number of different species found in an ecosystem.

Question 4

what is evenness?

Answer 4

the measure of how all individual organisms in an ecosystem are balanced between different species.

Question 5

Is there genetic diversity in all populations?

Answer 5

yes

Question 6

What is a Bottleneck event?

Answer 6

It’s an environmental disaster either created by naturally or by humans that severely reduces population sizes and kills organisms regardless of their genomes.

Question 7

What do bottleneck events do?

Answer 7

they reduce genetic diversity

Question 8

What is Inbreeding depression?

Answer 8

Where species reproduce with that same species, often causing harmful mutations.

Question 9

Who is more at risk for Inbreeding depression?

Answer 9

Smaller populations

Question 10

What is ecosystem resilience?

Answer 10

It is the ability of an ecosystem to return to its original conditions after a major disturbance.

Question 11

Higher species diversity =

Answer 11

higher ecosystem resilience

Question 12

provisioning =

Answer 12

taken directly from the ecosystem

Question 13

regulating =

Answer 13

regulate climate, air quality, storm damage

Question 14

supporting =

Answer 14

processes we do ourselves

Question 15

cultural =

Answer 15

money generated by recreation

Question 16

What are provision services?

Answer 16

goods/ products directly provided to humans for sale/use by ecosystems

Question 17

what can disrupt provision services?

Answer 17

overharvesting, water pollution, clearing land for urbanization or agriculture.

Question 18

What is ecological range of tolerance?

Answer 18

range of conditions such as temperature, salinity, pH that organisms can endure before injury or death.

Question 19

what is the optimal range?

Answer 19

range where organisms survive/ grow/ reproduce

Question 20

what is the zone of physiological stress?

Answer 20

range where organisms survive but experience same stress such as infertility, lack of growth< decreased activity etc…

Question 21

what is the zone of intolerance?

Answer 21

range where organisms WILL die.

Question 22

What is a periodic event?

Answer 22

an event that occurs with regular frequency

Question 23

What is an episodic event?

Answer 23

an occasional event with irregular frequency

Question 24

what is a random event?

Answer 24

an event with NO regualr frequency

Question 25

what effects climate change on earth

Answer 25

earths orbit/ tilt

Question 26

what effects earths sea levels

Answer 26

when glacial ice forms and melts