Create an account
a division of science that studies the effects of human activities on species, communities, and ecosystems and to develop practical approaches to preventing the extinction of species and the destruction of ecosystems.
application of mathematics and computer science to store, retrieve, and analyze biological data
the diversity of plant and animal life in a particular habitat (or in the world as a whole), gene variability & the communities where they live
used directly by us! humans depend on plants and animals to provide food, clothing, energy, medicine, and shelter
or non-consumptive use value; refers to the intrinsic value of ecosystem services in biodiversity:
photosynthesis, production of soil, regulation of climate, biogeochemical cycles, waste disposal, provides fresh water, prevent soil erosion, regulates climate, ecotourism
the process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms, which previously used the site, are displaced or destroyed, reducing biodiversity.
Release of harmful materials into the environment, undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
The return to earth as rain or snow of the sulfate or nitrate salts of acids produced by commercial and industrial activities.
process by which a body of water becomes too rich in dissolved nutrients, leading to plant growth that depletes oxygen
thinning of Earth's ozone layer caused by CFC's leaking into the air and reacting chemically with the ozone, breaking the ozone molocules apart
an increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes)
the number of individuals taken from a population is so great that the population becomes severely reduced in members
a species whose impact on its community or ecosystem are much larger and more influential than would be expected from mere abundance
Especially interesting or attractive organisms that people respond to emotionally. Motivate public to preserve biodiversity and contribute to conservation. EX: giant panda (youtube.com: panda sneezing)
A group of spatially separated populations of one species that interact through immigration and emigration. Separated due to habitat fragmentation.
A population that has a surplus of individuals that are able to emigrate to other areas
A population that relies on immigration, fewer offspring produced than can coexist (numbers decline)
the different conditions along the boundaries of an ecosystem compared to the more favorable ones on the inside
a biogeographical technique of mapping biological diversity and endemic species to find gaps between protected areas that leave endangered habitats vulnerable to disruption; use of computers to discover places where biodiversity is high outside of preserved areas
population viability analysis
helps determine how much habitat a species requires to maintain itself; minimum population size needed to prevent extinction
Applying ecological principles in an effort to return ecosystems that have been disturbed by human activity to a condition as similar as possible to their natural state. A subdiscipline of conservation biology.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together