Geography - Unit 3 - Managing Resources + Climate🌲🪓

What are the categories of forest insects?

Answer explanation

What’s what: native, alien, invasive

Forest insects and diseases in Canada are typically classified into three broad categories:

- Native: Indigenous species that have existed in Canada for thousands of years. Outbreaks occur periodically. Examples are spruce budworms and mountain pine beetle.

- Alien: Species introduced into Canada’s forests within recent history. They are also referred to as “exotic,” “non-native” and “foreign.” Examples include emerald ash borer, brown spruce longhorn beetle and Dutch elm disease.

- Invasive: Insects and diseases that spread beyond their known usual range.

Both terms, “alien” and “invasive,” refer to shifts from one ecosystem to another, not to shifts across national borders. So, even organisms that move into new ecosystems within the same country can be considered alien and invasive if they extend beyond their usual geographic range. The spread of mountain pine beetle from British Columbia’s lodgepole pine forests to Alberta’s jack pine forests is an example of a native forest insect behaving invasively.

What is native category of insects?

• indigenous species that have existed in Canada for thousands of years

• species introduced to Canada's forests within recent history

• insects that spread beyond their known usual range

Answer explanation

What’s what: native, alien, invasive

Forest insects and diseases in Canada are typically classified into three broad categories:

- Native: Indigenous species that have existed in Canada for thousands of years. Outbreaks occur periodically. Examples are spruce budworms and mountain pine beetle.

- Alien: Species introduced into Canada’s forests within recent history. They are also referred to as “exotic,” “non-native” and “foreign.” Examples include emerald ash borer, brown spruce longhorn beetle and Dutch elm disease.

- Invasive: Insects and diseases that spread beyond their known usual range.

Both terms, “alien” and “invasive,” refer to shifts from one ecosystem to another, not to shifts across national borders. So, even organisms that move into new ecosystems within the same country can be considered alien and invasive if they extend beyond their usual geographic range. The spread of mountain pine beetle from British Columbia’s lodgepole pine forests to Alberta’s jack pine forests is an example of a native forest insect behaving invasively.

What is alien category of insects?

• indigenous species that have existed in Canada for thousands of years

• species introduced to Canada's forests within recent history

• insects that spread beyond their known usual range

Answer explanation

What’s what: native, alien, invasive

Forest insects and diseases in Canada are typically classified into three broad categories:

- Native: Indigenous species that have existed in Canada for thousands of years. Outbreaks occur periodically. Examples are spruce budworms and mountain pine beetle.

- Alien: Species introduced into Canada’s forests within recent history. They are also referred to as “exotic,” “non-native” and “foreign.” Examples include emerald ash borer, brown spruce longhorn beetle and Dutch elm disease.

- Invasive: Insects and diseases that spread beyond their known usual range.

Both terms, “alien” and “invasive,” refer to shifts from one ecosystem to another, not to shifts across national borders. So, even organisms that move into new ecosystems within the same country can be considered alien and invasive if they extend beyond their usual geographic range. The spread of mountain pine beetle from British Columbia’s lodgepole pine forests to Alberta’s jack pine forests is an example of a native forest insect behaving invasively.

What is invasive category of insects?

• indigenous species that have existed in Canada for thousands of years

• insects that spread beyond their known usual range

• species introduced to Canada's forests within recent history

Answer explanation

What’s what: native, alien, invasive

Forest insects and diseases in Canada are typically classified into three broad categories:

- Native: Indigenous species that have existed in Canada for thousands of years. Outbreaks occur periodically. Examples are spruce budworms and mountain pine beetle.

- Alien: Species introduced into Canada’s forests within recent history. They are also referred to as “exotic,” “non-native” and “foreign.” Examples include emerald ash borer, brown spruce longhorn beetle and Dutch elm disease.

- Invasive: Insects and diseases that spread beyond their known usual range.

Both terms, “alien” and “invasive,” refer to shifts from one ecosystem to another, not to shifts across national borders. So, even organisms that move into new ecosystems within the same country can be considered alien and invasive if they extend beyond their usual geographic range. The spread of mountain pine beetle from British Columbia’s lodgepole pine forests to Alberta’s jack pine forests is an example of a native forest insect behaving invasively.

Can you give an example of a native forest insect?

Answer explanation

Spruce budworm

Can you give an example of an alien insect?

Answer explanation

Emerald ash borer

What are 2 arguments in support of logging in Canada

• 360 000 people depend on wages from forestry

• $70 billion are earned by selling forest products overseas

• Removal of trees leaves soil bare and exposed to wind and rain

• Exposed hills and mountain sides may collapse in landslides

• Trees take up carbon dioxide and produce oxygen

Answer explanation

What are 2 arguments against logging in Canada?

• heavy storms will wash top soil into creeks and streams

• plantation forests do not support native animals

• there are plenty of old growth forests left

• Canada does not have to buy timber products

• supplies Canada's growing building industry

Answer explanation

Can you give some examples of fruit trees in Canada?

Answer explanation

Can you give some examples of coniferous trees in Canada?

Answer explanation