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In biogeography, a native species is indigenous to a given region or
ecosystem An ecosystem is a community (ecology), community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These Biotic component, biotic and abiotic components are linked together through ...
if its presence in that region is the result of only natural processes, with no human intervention.CEQ (1999)
Executive Order 13112
/ref> The term is equivalent to the concept of indigenous or autochthonous species. Every wild organism (as opposed to a domesticated organism) is known as an introduced species within the regions where it was anthropogenically introduced. If an introduced species causes substantial ecological, environmental, and/or economic damage, it may be regarded more specifically as an invasive species. The notion of nativity is often a blurred concept, as it is a function of both time and political boundaries. Seen over long periods of time, plants and animals take part in the constant movement of tectonic plates—species appear and may flourish, endure, or become extinct, and their distribution is rarely static or confined to a particular geographic location. A native species in a location is not necessarily also endemic to that location. Endemic species are ''exclusively'' found in a particular place. A native species may occur in areas other than the one under consideration. The terms endemic and native also do not imply that an organism necessarily first originated or where it is currently found.


Ecology

Native species form communities and biological interactions with other specific flora, fauna, fungi, and other organisms. For example, some plant species can only reproduce with a continued mutualistic interaction with a certain animal pollinator, and the pollinating animal may also be dependent on that plant species for a food source. Many species have adapted to very limited, unusual, or harsh conditions, such as cold climates or frequent wildfires. Others can live in diverse areas or adapt well to different surroundings.


Human impact and intervention

The diversity of species across many parts of the world exists only because bioregions are separated by barriers, particularly large
river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Sm ...
s, seas, ,
mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. A mountain differs from a plateau in having a limited summit area, and is larger than a hill, typically rising at least ...

mountain
s, and
desert upright=1.5, alt=see caption, Sand dunes in the Rub' al Khali ("Empty quarter") in the United Arab Emirates">Rub'_al_Khali.html" ;"title="Sand dunes in the Rub' al Khali">Sand dunes in the Rub' al Khali ("Empty quarter") in the United Arab ...
s. Humans can introduce species that have never met in their evolutionary history, on varying time scales ranging from days to decades (Long, 1981; Vermeij, 1991). Humans are moving species across the globe at an unprecedented rate. Those working to address invasive species view this as an increased risk to native species. As humans Introduced species, introduce species to new locations for cultivation, or transport them by accident, some of them may become invasive species, damaging native communities. Invasive species can have profound effects on ecosystems by changing ecosystem structure, function, species abundance, and community composition. Besides ecological damage, these species can also damage agriculture, infrastructure, and cultural assets. Government agencies and environmental groups are directing increasing resources to addressing these species.


Conservation and advocacy

Native plant organizations such as the Society for Ecological Restoration, native plant societies, Wild Ones (organization), Wild Ones, and Lady Bird Johnson Wildflower Center encourage the use of native plants. The identification of local remnant natural areas provides a basis for this work. Many books have been written on the subject of planting native plants in home gardens. The use of cultivars derived from native species is a widely disputed practice among native plant advocates.


Importance of nativity in conservation

When ecological restoration projects are undertaken to restore a native ecological system disturbed by economic development or other events, they may be historically inaccurate, incomplete, or pay little or no attention to ecotype accuracy or type conversions. They may fail to restore the original ecological system by overlooking the basics of remediation. Attention paid to the historical distribution of native species is a crucial first step to ensure the ecological integrity of the project. For example, to prevent erosion of the recontoured sand dunes at the western edge of the Los Angeles International Airport in 1975, Landscaping, landscapers stabilized the backdunes with a "natural" seed mix (Mattoni 1989a). Unfortunately, the seed mix was representative of coastal sage scrub, an exogenous plant community, instead of the native dune scrub community. As a result, the El Segundo blue butterfly ''(Euphilotes battoides allyni)'' became an endangered species. The El Segundo Blue butterfly population, which had once extended over 3200 acres along the coastal dunes from to Ocean Park to Malaga cove in Palos Verdes, began to recover when the invasive Eriogonum fasciculatum, California buckwheat ''(Eriogonum fasciculatum)'' was uprooted so that the butterflies' original native plant host, the dune buckwheat ''(Eriogonum parvifolium),'' could regain some of its lost habitat.


See also

*Introduced species


References

{{Reflist, refs= {{cite book , last1=Aitken , first1=Gill , title=A New Approach to Conservation: The Importance of the Individual through Wildlife Rehabilitation , date=2018 , publisher=Routledge , isbn=9781351163545 Indigenous, Aliens and Invasives
Envirofacts
{{cite book , last1=Levin , first1=Phillip S , last2=Poe , first2=Melissa R. , title=Conservation for the Anthropocene Ocean: Interdisciplinary Science in Support of Nature and People , date=2017 , publisher=Academic Press , isbn=9780128092989 {{Cite Merriam-Webster, Autochthonous, access-date=16 January 2019 {{Cite OED, Endemic {{cite web , title=What are native plants? , url=https://web.uri.edu/rinativeplants/what-are-native-plants/ , publisher=University of Rhode Island , access-date=16 January 2019 {{cite book , last1=Stein , first1=Sara , title=Noah's Garden: Restoring the Ecology of Our Own Back Yards , year=1993 , publisher=Houghton-Mifflin , isbn=9780395709405 , url=https://www.google.com/books/edition/Noah_s_Garden/aKcSsRjdB00C?hl=en&gbpv=0, language=en {{cite book , last1=Tallamy , first1=Douglas W. , title=Bringing Nature Home: How Native Plants Sustain Wildlife in Our Gardens , year=2007 , publisher=Timber Press , isbn=978-0-88192-854-9 , url=https://books.google.com/books?id=JA45XbUm48gC , language=en {{cite book , last1=Tallamy , first1=Douglas W. , title=Nature's Best Hope: A New Approach to Conservation That Starts in Your Yard , year=2020 , publisher=Timber Press , isbn=1604699000 , url=https://books.google.com/books?id=ToqHDwAAQBAJ , language=en {{cite book, last=Wasowski, first=Andy and Sally, title=The Landscaping Revolution: Garden With Mother Nature, Not Against Her, year=2000, publisher=Contemporary Books, isbn=9780809226658, url=https://www.google.com/books/edition/The_Landscaping_Revolution/oqK9GAAACAAJ?hl=en Biogeography Ecological restoration Ecology terminology Habitat