autochthonous

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autochthonous

[ȯ′täk·thə·nas]
(ecology)
Pertaining to organisms or organic sediments that are indigenous to a given ecosystem.
(geology)
Having been formed or occurring in the place where found.
References in periodicals archive ?
The findings suggest that the nontravelers were infected by HEV that was circulating autochthonously in the United States.
This finding indicates that the organism exists autochthonously around the coastal waters or aquatic habitats in Taiwan.
In the United Kingdom, autochthonously acquired hepatitis E has been reported rarely and a short (98-bp) section of the virus genome has been sequenced from one such patient (8).