Ecology Glossary Terms 2
Card Set Information
Ecology Glossary Terms 2
Chapter 2 terms
All of the species that occupy a particular geographic area at a certain time.
: Elephants, Humans, etc.
Accelerating growth that produces a J-shaped curve when the population is graphed against time.
: A new organism enters an ecosystem that has a lot of resources such as algae.
A factor that limits the growth, distribution, or amount of a population in an ecosystem.
: Perch not getting enough oxygen, light and hiding places so that they can live.
The size of a population that can be supported indefinitely by available resources and services by the ecosystem.
The way that an organism occupies a position in the ecosystem, including all the necessary biotic and abiotic factors.
: Cave-dwelling bats regulate insect populations and support other cave-dwelling organisms.
An organism that kills to and consume other organisms.
: Wolves, Lions, Bears, etc.
An organism that's eaten as food by a predator.
: Deer, Rabbit, Moose, etc.
A symbiotic relationship between two species which both are benefited from it.
: Algae and Coral, algae benefits the coral with its colour while the coral provides the algae with protection, nutrients and a constant supply of carbon dioxide for photosynthesis.
An organism whose niche is dependent on a close association with a larger host organism.
: Larval worms that are laid in blood vessels of a white-tailed deer's brain.
When two or more organisms compete for the same resource.
: Competition between female sparrows for resources to lay eggs.
Use that doesn't lead to long term depletion of a resource or affect the diversity of the ecosystem from which the resource is obtained.
: Humans sustaining our resources so that we don't use them too quickly.
The period of time that's required for a population to double in size.
: The human doubling time is 60 years
A measure of the impact that an individual or population makes on the environment in terms of energy consumption, land use and waste production.
: The ecological footprint of each Canadian person is approximately 8 hectares/person
A pattern of activity that leads to a decline in the function of a ecosystem.
: Since our world has a big ecological footprint and depend on non-renewable fossil fuels, our world is likely to be unsustainable.
Use of Earth's resources, including land and water, at levels that can continue on forever.
: Consuming fewer resources, Use of existing resources efficiently, energy efficiency, etc.
The benefits experienced by organisms, including humans, that are provided by sustainable ecosystems.
: Natural results of all activities that occur in the biosphere.
The change of non-desert land into a desert.
: European settlers cutting down trees for lumber and cleared the land for agriculture but created desert like conditions.
A form of tourism that's sensitive to the health of an ecosystem and involves recreational activities produced by a sustainable ecosystem.
: Skiing, Hiking, Fishing, etc.