Australian Waterways and Management Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is the biggest waterway in straya?

A

The Murry Darling Basin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is riparian vegetation?

A

riverbank vegetation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Freshwater systems play a large role in the _______ and _____ systems of wildlife

A

transitory and migratory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where does most of the waterway runoff happen?

A

in the northern tropics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

T/F: Staya has generally predictable rainfall

A

FALSE - el nina and el nino yo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Most waterways lie where?

A

on the coast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

List 3 of the permanent coastal rivers

A

Burnett
Mary
Tully

(BMT)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Biological consequences of Aussie’s scarce waterways

A
  • Restrictions to waterways
  • generally no req. for water-related adaptations (less specialization)
  • diversity
  • sort of endimism
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Human impacts on waterways (2)

A
  • settlement/agriculture

- modification of water flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

List 3 of the permanent inland rivers?

A

BMD

  • Burnett
  • Murray
  • Darling
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does surface water refer to?

A

rivers and flood plains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are differences between coastal and inland rivers?

A
  • highly varable flow
  • slow flow (flat topography)
  • turbid (muddy)
  • lower oxygen
  • some water adapt. required
  • larger animals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name 2 intermittent inland rivers

A

CG

  • Coopers
  • Georgia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Describe inland intermittent rivers

A
  • defined riverbeds
  • deeper slow pools
  • cooler with low oxygen
  • periodic flooding
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a river catchment?

A

Basin where water drains out to?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Bio consequences of intermittent rivers

A
  • genetic similarity (mix of spp during floods)
  • adaptations to low oxygen
  • less endimism
  • regulation of reproduction
  • only large trees permanent
  • low human influence
17
Q

What does anastomozing mean?

A

when two water bodies rejoin after previously branching out

18
Q

Name 2 inland flood plains

A

Queensland Channel Country

Paroo

19
Q

Describe characteristics of inland flood plains

A
  • anastomozing channels/rivers
  • long periods of drought
  • wide flooding
  • hot
  • shallow turbid water
  • non restricted water (little structure)
20
Q

Bio consequences of intermittent rivers

A
  • spp not restricted (low endimism)
  • highly migratory/mobile spp
  • wide adaptation ranges
  • opportunistic spp
  • minimal human impact
21
Q

What are salt lakes and clay plans? (examples?)

A

“end of the road” where salt/clay/sediment collect to form soils
extremes in all aspects
examples: lake Eyre (central aussie)

22
Q

What does opportunistic life history mean?

A

mass production of reproduction, fast life cycles

23
Q

Bio consequences of Salt Lakes

A
  • massive extremes in population size
  • tolerance to multiple extreme water conditions
  • almost zero human influence
24
Q

How do organisms survive in desert waters?

A
  • very flat area allows water to stay for a while

- species have dormant life stages

25
Q

What is a boi impact on species habitat and diversity by floods

A
  • invasive species may transfer

- distinct species may collide

26
Q

What is one big catchment that is being commercially used

A

The Murry Darling Basin (80% of rainfall in the surrounding area)

27
Q

How do plants play a role in the salinity of catchemnts (or bodies of water in general). How might this affect human impact?

A

They increase salinity through transpiration (taking up pure water from the bodies of water). They plants may render the water too salty for humans to use thus preventing any artificial intervention.

28
Q

List the key management considerations (4)

A

environmental flows
barrier removal
habitat/veggie restoration
take down invaders