Niches
What is a niche?
The role an organism plays in the ecosystem.
What is the island biography theory?
The theory of the number of Species on an island that has a balance between its size and its distance from mainland.
What is stability?
Being able to Maintain an ecosystem
What is one human impact on the environment?
Overuse or environment
Pollution
Disease
What is an invasive species?
Non native species that poses a threat to the natural ecosystem.
What is a fundamental niche?
The full range of conditions and resources an organism can use in absence of competition.
What are the characteristics of smaller islands?
- Lower migration rates
- Higher extinction rates
- lower population
What is sustainability?
The keeping stable of a resource.
What are the human effects on non renewable resource?
Over harvesting and farming or using till there is no more.
What is a native species?
It is a organism that is originally living in the ecosystem.
What is a realized niche?
The portion that an organism actually occupies.
What are the characteristics of a larger island?
-Higher population
- Lower extinction rates
- Higher migration
What is the 3 aspects of Sustainability?
Inertia
Consistency
Resilience
How can humans work with nature?
Managing carbon output
Not littering
What is a parasite?
It is a organism that negatively feeds on other organisms.
What are conditions and resources.
Conditions are the physical attributes of the environment, while resources are the parts of the environment used by organisms.
Conditions ex: temperature, salinity, acidity
Resources ex: water, food, nesting
Far islands have what?
-Lower immigration rates
- Lesser species
Signs of poor health?
Decrease of population
Nutrition loss
Decline in species diversity
What are the 6 features of living systems?
Interdependence
Diversity
Resilience
Adaptability
Unpredictability
Limits
What is a preditor?
It is a organism that is top of the food chain and feeds on prey.
What is the "n-dimensional hyper volume".
A way to visualize the conditions and resources that influence a niche.
Who were the ones to create the island bio-geography theory?
Robert H. MacArthur and Edward O. Wilson
What is resilience?
The ability to recover after disturbance.
Human impacts
Fragmentation and degrading habitat
Simplifying natural ecosystem
Strengthening population against disease
Elimination of some preditors
What is an endangered species?
An organism that is close to not existing anymore.