Chapter 14

Question 1

Why are parks not effective to protect endangered species?

Answer 1

Roads -attract animals to live there and develop nests

Question 2

extrinsic values

Answer 2

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

Question 3

intrinsic value

Answer 3

nature has value itself apart from humanity

Question 4

extirpated

Answer 4

eliminated from only one are of its range

Question 5

ecological extinct

Answer 5

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

Question 6

ethical values

Answer 6

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

Question 7

Net primary productivity,

Answer 7

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.

Question 8

predator control

Answer 8

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

Question 9

ex situ conservation

Answer 9

breeding in captivity than relased to wild

Question 10

habitat change

Answer 10

the biggest factor causing biodiversity depletion

• agriculture is biggest impact on depleting forest populations
• focus on water & land

Question 11

Prairie/wetland agriculture

Answer 11

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

Question 12

wetland

Answer 12

drains wetlands for agriculture -> loss of habitat

Question 13

fragmentation

Answer 13

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

Question 14

hybrids

Answer 14

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

Question 15

Pollution

Answer 15

second more cause of endangerment for freshwater species

-pop declines go unnoticed for years

Question 16

alien species

Answer 16

cause for 40% of animal depletion

-least in cnd

Question 17

Species at Risk Act

Answer 17

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

Question 18

CESC

Answer 18

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

Question 19

island biogeography

Answer 19

small places unable to support large # of species

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