Week 44 - freshwater

Week 43 - Freshwater and wetland management


Invasive species and management

Lauren Moore
lauren.moore@ntu.ac.uk
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Slide 1: Diapositive
EcologyFurther Education (Key Stage 5)

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Week 43 - Freshwater and wetland management


Invasive species and management

Lauren Moore
lauren.moore@ntu.ac.uk

Slide 1 - Diapositive

Slide 2 - Vidéo

Activity on LessonUp

Slide 3 - Diapositive

Are ladybirds native or invasive to the UK?
A
Native
B
Invasive

Slide 4 - Quiz

What is the motto for freshwater invasive species control?
A
Prevent, reduce, remove
B
Out of sight, out of mind
C
Check, clean, dry

Slide 5 - Quiz

Red-eared sliders are a species of pond turtle native to North America. How have they become widespread throughout the UK?
A
They escaped from food farms
B
They have been able to travel from their native range due to global warming
C
Pet turtles were released by their owners
D
They were intentionally released to predate an invasive lobster species

Slide 6 - Quiz

Cause of red slider expansion!
The film Teenage Mutant Ninja Turtles lead to a huge increase of purchases of these tiny hatchling turtles. After a few years they outgrew most standard aquariums and were abandoned. Millions have been imported into the UK and are still being imported in the hundreds of thousands, despite few people having the ability to house them as adults

Slide 7 - Diapositive

How does climate change affect the spread of invasive species?
A
As climates cool down, invasive species will be able to survive and breed in currently hot areas
B
More extreme weather will lead to the extinction of native species
C
As climates warm up, native species will be able to outcompete invaders
D
As climates warm up, invasive species will be able to survive and breed in currently cold areas

Slide 8 - Quiz

In the 20th Century, American mink escaped into the British countryside when they were released from fur farms by animal rights activists. What has the impact been on the natural environment?
A
Water voles are able to empty mink burrows, thus increasing their numbers
B
The mink barely became established, but have provided an excellent food source for native predators
C
Some native species have declined as much as 94% since the mink arrived
D
MInk have replaced other predators that hunting removed from the British countryside, so have had no impact

Slide 9 - Quiz

The harlequin ladybird is considered the UK's fastest invading species but little is being done to eradicate them. Which of the following is not a reason that the ladybird isn't being targeted for eradication?
A
They are causing little economic impact
B
They prey on pests that might damage crops
C
They provide prey for our native ladybird species
D
It's almost impossible to eradicate them without impacting native species

Slide 10 - Quiz


Some introduced species become naturalised. What does this mean?
A
The species is moved from one area to another
B
The species becomes established, living and breeding in a region outside of its native range
C
The species became a native species and is listed in the flora and fauna of the region
D
The species is driven from extinction in its native range

Slide 11 - Quiz

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Domestic cats
Japanese knotweed - forming dense stands 
Asian hornet - predator of honeybees and other insects
Rhododendron - blocks light and carries disease
American bull frog - predator and carrier of disease
Grey squirrels - out-competitor and disease carrier
American mink - predator
Muntjac - clear shrubs, prevents tree regeneration
Signal crayfish - competition, disease carrier, erosion
Floating pennywort - extensive water surface cover

Slide 12 - Question de remorquage

Domestic cats!
Cats in the UK catch up to 100 million prey items over spring and summer, of which 27 million are birds (incl. house sparrows, blue tits, blackbirds, starlings)

Slide 13 - Diapositive

Should cats be kept indoors 24/7?
Yes
No

Slide 14 - Sondage

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FIELD TRIP!
When: 31/05/2022, 8.15am to 1pm
Where: Bulwell Hall
Why: to get involved in the crayfish project, help with crayfish trapping
You will get: waders and life jackets
What you will need: proper footwear, warm layers, water, positive attitude!

Slide 26 - Diapositive

Any questions?

Slide 27 - Diapositive