Critical habitat
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Critical habitat is a
habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...
area essential to the conservation of a listed
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
, though the area need not actually be occupied by the species at the time it is designated. This is a specific term and designation within the
U.S. The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
Endangered Species Act The Endangered Species Act of 1973 (ESA or "The Act"; 16 U.S.C. ยง 1531 et seq.) is the primary law in the United States for protecting imperiled species. Designed to protect critically imperiled species from extinction as a "consequence of ec ...
-ESA. Contrary to common belief, designating an area as critical habitat does not preclude that area from development. Rather, a critical habitat designation affects only federal agency actions. Such actions include federally funded activities or activities requiring a federal permit.


Designation process

Critical habitat must be designated for all
threatened species Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensa ...
and
endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
under the Endangered Species Act, with certain specified exceptions. Designations of critical habitats must be based on the best scientific information available and in an open public process within specific timeframes. Unless deemed necessary for the species' continued existence, critical habitat do not include the entire geographical area occupied by a species. Department of Defense (DOD) lands are also exempt from being designated as critical habitat. Both public and private land can be specified as critical habitat. A critical habitat designation does not set up a preserve or refuge; it applies only when Federal funding, permits, or projects are involved. Under Section 7 of the ESA, all Federal agencies must ensure that any actions they authorize, fund, or carry out are not likely to jeopardize the continued existence of a listed species, or destroy or adversely modify its designated critical habitat.


Considerations

Before designating critical habitat, careful consideration must be given to the economic impacts, impacts on national security, and other relevant impacts of specifying any particular area as critical habitat. An area may be excluded from critical habitat if the benefits of exclusion outweigh the benefits of designation, unless excluding the area will result in the
extinction Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
of the species concerned. Critical habitat requirements do not apply to citizens engaged in activities on private land that do not involve a Federal agency. However, if an activity on property property requires an action by a Federal agency (such as a loan, increasing irrigation flows, permits from a federal agency, etc.), then the Federal agency must ensure that the action will not adversely modify the designated critical habitat.


See also

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Habitat Conservation Plan A Habitat Conservation Plan (HCP) is a required part of an application for an Incidental Take Permit, a permit issued under the United States Endangered Species Act (ESA) to private entities undertaking projects that might result in the destruct ...
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Habitat conservation Habitat conservation is a management practice that seeks to conserve, protect and restore habitats and prevent species extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in term ...
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Habitat corridor A wildlife corridor, habitat corridor, or green corridor is an area of habitat connecting wildlife populations separated by human activities or structures (such as roads, development, or logging). This allows an exchange of individuals between ...
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Habitat destruction Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...
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Habitat fragmentation Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes ...
* Restoration ecology


References

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Footnotes

{{- Habitats Habitat Endangered species Environmental law Environmental terminology