Biodiversity Management

Question 1

invasive alien species

Answer 1

organisms that are not native to a region that when introduced, either intentionally or accidentally, out-compete native species for available resources.
-are strong competitors

Question 2

why are invasive alien species important?

Answer 2

ecological changes

• prey on native species
• disrupt food webs
• contribute to loss of species biodiversity

economic losses
-impacts to commercial and consumptive interests

health concerns
-introduction of human pathogens and their vectors

recreational losses
-affects human enjoyment and use of the environment

Question 3

major threats to biodiversity

Answer 3

• hunting, poaching and overfishing
• air, water, and soil pollution
• loss of habitat and fragmentation of existing habitat
• climate change
• intro of species with same ecological niche that out compete
• human population and over consumption

Question 4

why’re some species more vulnerable than others?

Answer 4

1. long lived and delayed maturity
2. low reproductive rates - low birth rate
3. limited habitat availability and challenged to establish new locations
4. breed in colonies - high density at seasonal times
5. specific requirements at life stages - hibernating, mating/staging grounds, wintering areas
6. niche specialization

Question 5

biodiversity conservation (levels)

Answer 5

• internationally
• Canada
• provincially (locally) in Manitoba

Question 6

biodiversity conservation internationally

Answer 6

• international union for the conservation of nature (IUCN)
• convention on biological diversity
• if an animal makes it onto this list, then it’ll automatically make it onto the other lists as well

Question 7

biodiversity conservation Canada

Answer 7

• biodiversity strategy
• species at Risk Act (SARA)
• when an animal gets declared vulnerable or worse, then the government has to do something

Question 8

biodiversity conservation provincially

Answer 8

• endangered species act

- animals can be labeled endangered in just one province, then something can be done

Question 9

international union for the conservation of nature (IUCN)

Answer 9

• tracks, reports and assists Humanity to evaluate the status of species and overall a barometer of the health of the biosphere
• called the Red List

Question 10

extinct

Answer 10

a species that no longer exists

Question 11

extirpated

Answer 11

a species no longer existing in the wild in Canada, but occurring elsewhere. (not all is lost)

Question 12

endangered

Answer 12

a species facing imminent extirpation or extinction

Question 13

threatened

Answer 13

a species likely to become endangered if limiting factors are not reversed

Question 14

special concern

Answer 14

a species particularly sensitive to human activities or natural events

Question 15

woodland caribou

Answer 15

• considered high risk
• 2 major threats: increased predation and brain worm parasite
• loss of habitat
• use their landscape more than other animals to avoid predators