5.3 - Impacts on ecosystems - Archive Flashcards
Why are dingoes and rabbits considered problematic in native ecosystems?
They outcompete native species and damage habitats.
What is the main purpose of controlled fires in ecosystems?
To maintain healthy ecosystems by promoting new plant growth and reducing wildfire risks.
How does the term “restorative wetlands” relate to flood management?
Restorative wetlands help absorb and slow the release of floodwaters, reducing their impact.
How does fire management differ in natural versus human-made fires?
Natural fires are typically caused by lightning and burn high and scar the trees, while human-made fires are intentional for land management and are lower, smaller fires.
When discussing fire management, what is a “prescribed burn”?
A fire that is ignited intentionally under controlled conditions to reduce fuel buildup and prevent larger, uncontrolled wildfires.
In the context of introduced species control, what is “biological control”?
Introducing predators or parasites to control introduced species populations.
What are floods?
Overflow of water onto normally dry land.
How do early detection systems help in preventing destructive wildfires?
They allow for immediate intervention, limiting the spread of fires.
What is the primary reason for controlling introduced species?
To prevent them from disrupting local ecosystems.
What does a sustainable ecosystem primarily focus on?
Preserving biodiversity, nutrient recycling, and habitats.
