Wenger 72944 Dokumentacja Pobierz pdf (Strona 345)

Section 11 Glossary of Terms and Acronyms

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

11-3

Ecosystem— A functional group of animal and plant species that operate in a

unique setting that is mostly self-contained.

Endangered species— Any species or subspecies of bird, mammal, fish,

amphibian, reptile, or plant which is in serious danger of becoming extinct

throughout all, or a significant portion of its range. Federally endangered species

are officially designated by the U.S. Fish and Wildlife Service or the National

Marine Fisheries Service and published in the Federal Register.

Enhancement— Measures which develop or improve the quality or quantity of

existing conditions or resources beyond a condition or level that would have

occurred without an action; i.e., beyond compensation.

Environmental consequences— The impacts to the Affected Environment that

are expected from implementation of a given alternative.

Environmental Impact Statement (EIS) — An analysis required by the National

Environmental Policy Act for all major federal actions, which evaluates the

environmental risks of alternative actions.

Estuary— A water passage where the tide meets a river current; an arm of the

sea at the lower end of a river.

Eutrophic— Referring to a body of water which is naturally or artificially

enriched in dissolved nutrients, and often shallow with a seasonal deficiency in

dissolved oxygen due to high primary production.

Evaporation— The change of a substance from the solid or liquid phase to the

gaseous (vapor) phase.

Evapotranspiration (ET) — Evapotranspiration is part of the hydrologic cycle

that is a combination of evaporation and transpiration. Solar energy induces

evaporation, causing water vapor to condense and fall as precipitation. A portion

of this precipitation seeps into the ground and is consumed by plants. It is then

recycled back into the atmosphere in the form of transpiration.

Exotic species— Introduced species not native to the place where they are found.

Flow— The volume of water passing a given point per unit of time.

1 2 ... 340 341 342 343 344 345 346 347 348 349 350 ... 385 386

Wenger 72944 Dokumentacja Strona 345