Chapter 14 Flashcards

1
Q

Why are parks not effective to protect endangered species?

A

Roads -attract animals to live there and develop nests

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

extrinsic values

A

in the case of biodiversity, adding a price biased of exports and imports of products. humans dervise this from species

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

intrinsic value

A

nature has value itself apart from humanity

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

extirpated

A

eliminated from only one are of its range

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

ecological extinct

A

such low numbers, it can’t fill its role in the ecosystem (martime mountan lioN)

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

ethical values

A

humans have no right to destroy species-> responsibility to protect

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

Net primary productivity,

A

n other words, it’s the rate at which energy is stored as biomass by plants or other primary producers and made available to the consumers in the ecosystem.

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

predator control

A

humans kill species cus they compete with human recourses -> parrot killed fro eating all that fruit, leaders to repercautins in the food web

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

ex situ conservation

A

breeding in captivity than relased to wild

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

habitat change

A

the biggest factor causing biodiversity depletion

  • agriculture is biggest impact on depleting forest populations
  • focus on water & land
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Prairie/wetland agriculture

A

through introdution of cattle, competes with all that bison and plants
-half of cnd endangered species are prairie species

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

wetland

A

drains wetlands for agriculture -> loss of habitat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

fragmentation

A

dec in birds that comes to cnd to bread->deforestation of their habitat

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

hybrids

A

due to humans, they are occurring more frequently -> infertile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Pollution

A

second more cause of endangerment for freshwater species

-pop declines go unnoticed for years

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

alien species

A

cause for 40% of animal depletion

-least in cnd

17
Q

Species at Risk Act

A

inacted in 2002, federal legistation on endangered soesies

  • hard to enforce, most land publicly owned
  • even under provincial ownership, not federal
  • protection only on federal
18
Q

CESC

A

Cnd endg species council ->comprises of federal and provincal and aboriginals->determins endangered status
- ultimate hand in politicians who determind who gets protected

19
Q

island biogeography

A

small places unable to support large # of species

- where is there cross over? parks are like islab\nds in a sense