Science vocab
What is it called when all members of a species have died off?
Extinct
What can cause species to be extinct?
Catastrophic enviromental events
What affects many plant species loss?
What can introduce non-native plant species intentionally or accidentally?
Humans
Exotic Species 2:
- How many seeds does Cardus nutans produce?
1200.
What is it called, plants that live naturally in an environment?
Native species
What are some Catastrophic environmental events?
Flooding, climate change, tectonic events, meteorological events.
Extinction of plant species can affect what ability?
The ability to make new medicines.
1. What do invasive species do?
2. Examples of invasive species?
1. They spread rapidly and compete with native species.
2. Nodding thistle/Cardus nutans
Exotic Species 2:
- What places do Cardus nutans seeds get stuck and how long do they lie dormant?
Animal fur, and hiking clothes. They lie dormant for 16 years and can still germinate.
Definition of Native Species?
Plants that live naturally in an environment
Scientist estimate that ___% of all species that ever lived have become extinct. How much percentage is it?
99%
What happens when habitat loss fragments a habitat?
When habitat is fragmented it is divided into smaller areas.
What does Cardus nutans (nodding thistle) do?
It invades meadows, prairies, and pastureland, and they crowd native plants and hinder the movement of livestock.
Threatened and Endangered Species:
- What does the Endangered Species Act of 1973 do?
It protects species from extinction and makes it illegal to do activities that threaten the continued existence of listed species or their habitats.
Definition of invasive species?
An exotic species that harms the environment.
What is the primary source of species loss?
Habitat loss
Examples of Habitat loss?
Urban development, fire, and agriculture & logging.
What are the 4 ways to control invasive species?
1. mechanical - removed by hand or machine
2. chemical - herbicides
3. biological - a natural enemy from the native range is introduced to control the invasive species.
4. ecosystem management - habitats can resist invaders better if managed properly.
Threatened and Endangered Species:
- Define "endangered species"
In danger of extinction throughout all or a significant portion of its range.
Definition of threatened species?
A species that is likely to become an endangered species in the foreseeable future?
What around an area of land will have different conditions than the interior?
The "edges"
What is Svalbard Global Seed Vault?
It stores seeds so that we can revive plant species.
Native species are adapted to the environment. They interact with other organisms in predictable ways. Ex. _______ plant in the U.S. Fill in the blank
Goldenrod
Threatened and Endangered Species:
- What 2 endangered plants does Humboldt Bay, California have?
1. Beach Layia
2. Humboldt Bay wallflower