Biodiversity, Resilience and Ecosystem Function

Question 1

What supports ecosystem systems?

Answer 1

Functional groups-ecosystem process-ecosystem-ecosystem service.

Question 2

How can you distinguish between a healthy reef and a unhealthy reef?

Answer 2

Unhealthy reef normally are covered by macro algae

Question 3

How to help a reef recover?

Answer 3

Take care of species of fishes that get rid of the macro algae.

Question 4

What has happened to GBR?

Answer 4

It has lost 50% of its coverage.

Question 5

How can we understand the services a system provides us?

Answer 5

To understand the services provided by a system you need to understand its foundations.

Question 6

What are some foundations of a reef?

Answer 6

A fish (a functional group) its the algae in the coral reef( ecosystem) which provides the service of looking colorful and atractive without the algae (service)

Question 7

What happened until 1990?

Answer 7

Average people had the chance to identify what was on the reef.

Question 8

What changed that made us see the reefs in a total different way?

Answer 8

It was the massive bleaching in the coral reefs which made us study them now to save them.

Question 9

What is a phase shift in a coral reef?

Answer 9

When a healthy coral goes to a macro algae state or sea urchin barren state or to be in a rock state.

Question 10

What is the cause of most impact in the coral reefs?

Answer 10

Humans are the ones that impact most the coral reef.

Question 11

What where the findings how overfishing affects the reefs?

Answer 11

One consequence the algae grow really high. Even if climate Change affects the reef they are able to recuperate if they have the fishes that help them to be stable, if there is overfishing It is really difficult for a coral to recuperate

Question 12

What were the results of whats happened when the macro algae was released for the fish to eat it?

Answer 12

It took five days the algae disappeared. The fish species that normally eat algae didn’t eat It. They are just four species that would eat the macro algae.

Question 13

What is the problem arised by the profesor?

Answer 13

The fish that consume the algae and the macroealgae are not protected =more algae and more coral reef affected.

Question 14

Will biodiversity help the reefs?

Answer 14

The problem is more about the humans affecting the reefs and not about how many kinds of fish you have .

Question 15

What is the situation in GBR?

Answer 15

21% aprox macroealgae dominante; 15% aprox less than 50% macroalgal cover, 28% there is more macroealgae than live coral.

Question 16

Where are the reefs covered in macroealgae?

Answer 16

They are near the shores and It is suspected that before is was not like this.

Question 17

What is one of the biggest problems investigating GBR and other reefs?

Answer 17

They are really small species (which the Average size 45mm in the reef) and they do something really important be cause they did. This is important be cause they grow very fast and they feed up the system.