Here is the text of selected Executive Orders that pertain to land and water resources, and therefore ecosystem activities. The source is the Civil Works Environmental Desk Reference prepared by the Institute for Water Resources, which is a "desk top reference on environmental statutes and environmental executive policy for Corps of Engineers Civil Works personnel." The Web site is:http://www.usace.army.mil/inet/functions/cw/cecwa/envdref2/index.htm. Selected Executive Orders are presented here as they appear in the Desk Reference, with the addition of number 13112, "Invasive Species," signed 3 Feb 99, and number 13186, "Responsibilities of Federal Agencies To Protect Migratory Birds," signed 10 Jan 01.
The National Archives and Records Administration maintains files of Federal Register notices, including all Executive Orders. Their page lists and supplies text for Executive Orders, arranged by the President and years in which the orders were signed: http://www.nara.gov/fedreg/eo.html.
Executive Order 11514 - PROTECTION AND ENHANCEMENT OF ENVIRONMENTAL QUALITY
Executive Order 11593 - PROTECTION AND ENHANCEMENT OF THE CULTURAL ENVIRONMENT
Executive Order 11987- EXOTIC ORGANISMS
Executive Order 11988- FLOODPLAIN MANAGEMENT
Executive Order 11990- PROTECTION OF WETLANDS
Executive Order 11991 - RELATING TO PROTECTION AND ENHANCEMENT OF ENVIRONMENTAL QUALITY
Executive Order 12088 - FEDERAL COMPLIANCE WITH POLUTION CONTROL STANDARDS
Executive Order 12114 - ENVIRONMENTAL EFFECTS ABROAD OF MAJOR FEDERAL ACTIONS
Executive Order 12148- FEDERAL EMERGENCY MANAGEMENT
Executive Order 12555- PROTECTION OF CULTURAL PROPERTY
Executive Order 12580- SUPERFUND IMPLEMENTATION
Executive Order 12844 - FEDERAL USE OF ALTERNATIVE FUELED VEHICLES
Executive Order 12873 - FEDERAL ACQUISTION, RECYCLING, AND WASTE PREVENTION
Executive Order 12948 - AMENDMENT TO EXECUTIVE ORDER NO. 12898
Executive Order 12962- RECREATIONAL FISHERIES
Executive Order 13007- INDIAN SACRED SITES
Executive Order 13112 - INVASIVE SPECIES
Executive Order 13186 - RESPONSIBILITIES OF FEDERAL AGENCIES TO PROTECT MIGRATORY BIRDS