Lionfish have been introduced outside of their native range and are being targeted for destruction in some locations. Why are lionfish a threat to other marine species in the Florida area?
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A single lionfish can consume up to 80% of the juvenile fish on a reef in five weeks
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As a venomous species, lionfish sting and kill any native predators
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Lionfish remove the algae that other species feed on
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Lionfish outcompete the native species for territory
Q.2.
How does climate change affect the spread of invasive species?
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As climates cool down, invasive species will be able to survive and breed in currently hot areas
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More extreme weather will lead to the extinction of native species
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As climates warm up, native species will be able to outcompete invaders
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As climates warm up, invasive species will be able to survive and breed in currently cold areas
Q.3.
What is a non-native species?
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Something moved by humans
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A species that preys on native species
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A species that is causing a large amount of ecological damage
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A species living outside its natural range
Q.4.
What can cat owners do to reduce the risk to local wildlife from their pet?
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Feed their cats well so they don't need to hunt
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Keep their cats indoors to protect them and other species
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Nothing - cats are hunters and it's a natural behaviour which shouldn't be stopped
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Rescue the animals caught by their cats when possible
Q.5.
Some introduced species become naturalised. What does this mean?
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The species is moved from one area to another
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The species becomes established, living and breeding in a region outside of its native range
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The species becomes a native species and is listed in the flora and fauna of that region
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The species is driven to extinction in its native range
Q.6.
In 1859, 24 rabbits were released in Australia. 10 years later, 2 million could be hunted with no noticeable affect on the population. What is the impact of the rabbits on the Australian landscape today?
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Rabbits eating the local vegetation has led to the loss of plant species and soil erosion
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The rabbits have spread disease to native marsupial species
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Rabbits have become the main source of fur and meat to the Native Australians
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Rabbits remove weeds that would be dangerous to sheep and other herbivores
Q.7.
Red-eared sliders are a species of pond turtle native to North America. How have they become widespread throughout the UK?
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They have escaped from food farms
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They have been able to travel from their native range due to global warming
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Pet turtles were were released by their owners
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They were released to predate an invasive lobster species
Q.8.
The harlequin ladybird is considered the UKs fastest invading species but little is being done to eradicate them. Which of the following is a reason that the ladybird isn't being targeted for eradication?
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They are causing little economic impact
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They prey on pests that might damage on crops
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They provide prey for our native ladybird species
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It's almost impossible to eradicate them without impacting native species
Q.9.
Why might invasive species legislation across Europe not be appropriate for all member states?
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Species that are banned to protect southerly nations cannot become invasive in more northerly ones, such as the UK
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Few if any of the species will make it to island nations such as Britain or Ireland
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In the UK we have different attitudes towards releasing animals, and so won't be releasing plants and animals at will
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Some countries, such as the UK, have better border controls than others
Q.10.
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?
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Water voles are able to use empty mink burrows, thus increasing their numbers
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The mink barely became established, but have provided an excellent food source for native predators
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Some native species have declined by as much as 94% since the mink arrived
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Mink have replaced other predators that hunting removed from the British countryside, so have had no impact
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