Where is biodiversity threatened




















Text on this page is printable and can be used according to our Terms of Service. Any interactives on this page can only be played while you are visiting our website. You cannot download interactives. A terrestrial ecosystem is a land-based community of organisms and the interactions of biotic and abiotic components in a given area. Examples of terrestrial ecosystems include the tundra, taigas, temperate deciduous forests, tropical rainforests, grasslands, and deserts.

The type of terrestrial ecosystem found in a particular place is dependent on the temperature range, the average amount of precipitation received, the soil type, and amount of light it receives.

Use these resources to spark student curiosity in terrestrial ecosystems and discover how different abiotic and biotic factors determine the plants and animals found in a particular place. Biodiversity refers to the variety of living organisms within a given area. A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.

A result of the UN General Assembly recognizing a set of guidelines to protect biodiversity and take action on the activities that threaten it, International Day of Biodiversity is celebrated on May Join our community of educators and receive the latest information on National Geographic's resources for you and your students.

Skip to content. Image grasshoppers Although all of these insects have a similar structure and may be genetic cousins, the beautiful variety of colors, shapes, camouflage, and sizes showcase the level of diversity possible even within a closely-related group of species.

Photograph by Frans Lanting. Twitter Facebook Pinterest Google Classroom. Encyclopedic Entry Vocabulary. Media Credits The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit.

Media If a media asset is downloadable, a download button appears in the corner of the media viewer. Text Text on this page is printable and can be used according to our Terms of Service. Interactives Any interactives on this page can only be played while you are visiting our website. Related Resources. Terrestrial Ecosystem. An area with large populations of few species is not biodiverse. If the numbers of one species are affected, there are almost always knock-on consequences.

A simple food chain is:. If the numbers of zooplankton are reduced by pollution, such as plastic waste, then more algae will grow and the population of other consumers will fall. Ecosystems with higher biodiversity have fewer species that depend on just one other for food, shelter and maintaining their environment. This follows up on two reports Halpern released in and For instance, if conservationists know a certain fish faces risks from bottom trawling, the new study might look where in the ocean this species exists and compare that to where bottom trawling occurs.

Once you find the overlap you see the risks. The research appears in Conservation Letters. Source: UC Santa Barbara. Search for:. Science Health Culture Environment. Share this Article. You are free to share this article under the Attribution 4. This strategy may be best to save corals from climate change.



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