| anti-HBe | antibody to hepatitis B early antigen |
|---|---|
| DEAFF | detection of early antigen fluorescent foci |
| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
| EAD | early afterdepolarization; extracranial arterial disease |
| EA-D | early antigen, diffuse |
| invasive species | Non-native species disrupting and replacing native species. (09 Oct 1997) |
|---|---|
| te&s species | See Threatened, endangered, and sensitive species. (05 Dec 1998) |
| threatened, endangered, and sensitive species | formal classifications of species. Sensitive Species for which population viability is a concern. Sensitive species are not federally designated under the Endangered Species act. The U.S. Fish and Wildlife Service, after study, makes the following designations (05 Dec 1998) |
| threatened species | <biology, ecology, zoology> Any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range. (09 Oct 1997) |
| endangered species | Any species which is in danger of extinction throughout all or a significant portion of its range. (09 Oct 1997) |
| type species | <zoology> The nominal species that is the name-bearing type of a nominal genus or subgenus. (09 Jan 1998) |
| exotic species | Plant or animal species introduced into an area where they do not occur naturally, non-native species. (09 Oct 1997) |
| facultative species | <ecology> Species that can occur both in wetlands and uplands, there are three subcategories of facultative species: 1. Facultative wetland plants (FACW) that usually occur in wetlands (estimated probability 67-99%), but occasionally are found in nonwetlands. 2. Facultative plants (FAC) that are equally likely to occur in wetlands or nonwetlands (estimated probability 34-66%). 3. Facultative upland plants (FACU) that usually occur in nonwetlands (estimated probability 67-99%), but occasionally are found in wetlands (estimated probability (1-33%). (09 Oct 1997) |
| unique species | <biology> A biotic resource whose presence is unusual and of special interest due to extremities of range, special soil types, or unusual associations with other species. (09 Oct 1997) |