Efficient algorithms for solving systems of ordinary differential equations for ecosystems modeling /

Mode of access: Internet.

Characteristics of nonpoint source urban runoff and its effects on stream ecosystems /

Mode of access: Internet.

Global Ecosystems Database : version 0.1 (Beta-test) Database documentation /

Mode of access: Internet.

Bibliography of aquatic ecosystems effects, analytical methods and treatment technologies for organic compounds in advanced fossil-fuel processing effluents /

Mode of access: Internet.

Implementation of the Endangered Species Act for native Hawaiian wildlife and plants : hearing before the Ad Hoc Subcommittee on Consumer and Environmental Affairs of the Committee on Governmental Affairs, United States Senate, One Hundred Second Congress, second session, May 11, 1992.

Shipping list no.: 92-0684-P.

Research plan for monitoring wetland ecosystems /

"EPA/600/3-91/010."

The structure of ecosystems /

Includes bibliographies.

Studies of environmental plutonium and other transuranics in desert ecosystems : Nevada Applied Ecology Group Progress report...

Includes bibliographical references.

Endangered species act of 1973.

Includes text of the act, with later additions, amendments and deletions.

At the crossroads, 1974 : a report on California's endangered and rare fish and wildlife

Mode of access: Internet.

Butterflies and moths of Pacific Northwest forests and woodlands : rare, endangered, and management-sensitive species /

"Species identification"--Cover.

Data catalog for the Marine Ecosystems Analysis Puget Sound Project : distribution and summarization of digital data /

The MESA Puget Sound Project is sponsored by the National Oceanic and Atmospheric Administration and the Environmental Protection Agency.

A survey of endangered, threatened, rare, status undetermined, peripheral, and unique mammals of the southeastern national forests and grasslands /

Cover title: Endangered, threatened and unique mammals of the southern national forests.

A treatise on the police of the metropolis : containing a detail of the various crimes and misdemeanors by which public and private property and security are, at present, injured and endangered : and suggesting remedies for their prevention /

Mode of access: Internet.

The right to exist : a report on our endangered wildlife.

Caption title.