Chapter 2 science flash cards

Population is all the individuals of a species that occupy a particular geographic area at a certain time.

Accelerating growth that produces J-shaped curve when  the population is graphed against time.

Limiting factors are factors that limit the growth, distrubution, or amount of a population in an ecosystem.

The size of a population  that can be supported indefinetley by the available reasources and services of an ecosystem.

The way in which an organism occupies a position  in an ecosystem, including all the  biotic and abiotic factors.

An organism that kills and consumes other organisms.

Prey are an organism that are eaten as food by predators.

A symbolic relationship between two species in which both species benifit from the relationship.

Are organisms whose niche is dependent on a close association with a larger host organism.

When two or more organisms compete for the same reasource in the same location at the same time.

Use that does not lead to long- term depletion of a reasource or affect the diversity of the ecosystem from which the reasource was obtained.

Doubling time is the period of time that is required for a population to double.

Anecological foot print is a measure of the impact of an individual or population  on the environment in terms of energy consumption, land waste, and wast production.

Unsustainable is a pattern of activities that leads to a decline in the function of an ecosystem.

Sustaiablity is the use of earths reasources including land and water , at levels that can countinue forever.

Ecosystem services are the benifits experienced by organisms, including humans that are provided by sustainable ecosystems.

The change of a non-desert land into a desert which may rsutl in climate change or from unsustainable  farming or water use.

Ecotourism is a form of toursim that is sensitive to the health of an ecosystem and involves recreational activities provided by sustainable ecosystems.