Ecoregion conservation status
Encyclopedia
Conservation status of the Global 200
Global 200
The Global 200 is the list of ecoregions identified by the World Wildlife Fund as priorities for conservation. According to the WWF, an ecoregion is defined as a "relatively large unit of land or water containing a characteristic set of natural communities that share a large majority of their...

 ecoregion
Ecoregion
An ecoregion , sometimes called a bioregion, is an ecologically and geographically defined area that is smaller than an ecozone and larger than an ecosystem. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural...

s is used to classify ecoregions into one of three broad categories: "critical/endangered",
"vulnerable", or "relatively stable/relatively intact".

The conservation status of terrestrial ecoregions is noted : CE for critical or endangered, V for vulnerable, and RS for relatively stable or intact.

Ecoregions vary in their biological particularities, as well as in their conservation status. This latter represents an estimation of the current and future ability of the ecoregion to sustain ecological viability and to react to environmental changes.

Conservation status was based on landscape (or equivalent for freshwater and marine ecoregions), such as total habitat
Habitat (ecology)
A habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant or other type of organism...

 loss, habitat fragmentation
Habitat fragmentation
Habitat fragmentation as the name implies, describes the emergence of discontinuities in an organism's preferred environment , causing population fragmentation...

, degree of degradation, degree of protection needed, degree of urgency for conservation needs, and types of conservation practiced or required.

The Global 200 ecoregions list can mostly help conservation
Conservation ethic
Conservation is an ethic of resource use, allocation, and protection. Its primary focus is upon maintaining the health of the natural world: its, fisheries, habitats, and biological diversity. Secondary focus is on materials conservation and energy conservation, which are seen as important to...

 at regional scale (local deforestation, destruction of swamps habitats, degradation of soils...). However, certain phenomena (such as bird or cetacea
Cetacea
The order Cetacea includes the marine mammals commonly known as whales, dolphins, and porpoises. Cetus is Latin and is used in biological names to mean "whale"; its original meaning, "large sea animal", was more general. It comes from Ancient Greek , meaning "whale" or "any huge fish or sea...

ns migration
Bird migration
Bird migration is the regular seasonal journey undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat or weather. Sometimes, journeys are not termed "true migration" because they are irregular or in only one direction...

) obviously depend on more complicated parameters not used in defining the current database (such as atmospheric currents, dynamic pelagic ecosystem...). These would require further gathering of information, and require coordination of efforts between several ecoregions. However, Global 200 ecoregions can help these efforts by identifying habitat sites and resting sites for migratory animals. It may also help identify the origin of invasive species
Invasive species
"Invasive species", or invasive exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions....

, and offer leverage for slowing down or stopping the intrusion and settling of the latter.
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