Most of the photographs (image use policy) and content from this guide were originally developed by Jeff Adams (Washington Sea Grant) for Stream Bugs as Biomonitors: A Guide to Pacific Northwest Macroinvertebrate Monitoring and Identification, then adapted by Xerces staff for use in wetlands. Jeff's broad knowledge of macroinvertebrate taxonomy and natural history has greatly contributed to this guide.

The image of the water boatman (corixidae) that appears in the left hand corner of every page was taken by Michael Clapp. Michael Clapp has also contributed some of the invertebrate images within the key. He hosts an excellent macroinvertebrate website: www.nwnature.net and has also produced field guides for stream macroinvertebrate monitoring (available on his website).

We appreciate many other individuals who generously allowed us to use their images in this guide:
Edward S. Ross, Emeritus, The California Academy of Sciences
Daniel Pickard, The California Department of Fish and Game
David Rosen, Wildside Photography
Eugene Hall, University of Colorado Museum of Natural History
Juergen Decker, Museum Für Naturkunde Berlin
David R. Maddison, University of Arizona Department of Entomology
Alex Wild,University of Arizona, www.myrmecos.net
The North American Benthological Society, www.benthos.org
Koen Breedveld, Spring Rivers Ecological Sciences
Kathy Biggs, Azalea Creek publishing
David Penrose, North Carolina State University
Ken Krieger, National Center for Water Quality Research, Heidelberg College
Mike Higgins, USFWS, Chesapeake Bay Field Office
Antoine Morin, University of Ottawa
Larry Abele, New York State Department of Environmental Conservation, Stream Biomonitoring Unit
Ken Davis, Wildlife Survey and Photo Service

We appreciate that t he following individuals allowed us to use their scientific illustrations:
Barbara Dupperon, Michigan Science Art
Ethan Nedeau, Biodrawversity

Illustrations of beetles in the family Hydrochidae were used from the following publication:
Reitter, E. 1908. Die Käfer des Deutschen Reiches. Band 2. Fauna Germanica. K. G. Lutz Verlag, Stuttgart.

We are very grateful to William H. Clark of Albertson College of Idaho's Orma J. Smith Museum of Natural History for providing a detailed bibliography of Northwest macroinvertebrate monitoring and identification literature.

These individuals have greatly assisted our work in wetlands this past year, by allowing us to sample invertebrates in the wetlands they manage or own:

Al Kitzman, Benton County Natural Areas and Parks Department
Bob Martin, The City of Tualatin Parks and Recreation
Bruce Barbarasch, Tualatin Hills Parks and Recreation District
Dave, Margy and Merilee Buchanan, Tyee Winery
Jason Knuckles, The Nature Conservancy
Jock Beall, Finley National Wildlife Refuge
Jean Larson, City of Salem
Mike Moore, Wilson Wildlife Area
Pete Barrell, Mt. Pisgah Arboretum
Ray Fiori, Wilson Wildlife Area
Ryan Sparks, Willamette Mission State Park
Tanya Beard, Marion County Public Works
Trevor Taylor, City of Eugene Parks and Open Spaces

These people have been very helpful in our studies of wetland macroinvertebrates in the Willamette Valley by sharing their regional wetland and/or invertebrate knowledge:

Allison Aldous, The Nature Conservancy
Bob Wisseman, Aquatic Biology Associates, Inc
Bruce Newhouse, Salix Associates
Dennis Paulson, Professor Emeritus, University of Puget Sound, Slater Museum of Natural History
John Christy, Oregon Natural Heritage
Mace Vaughan, The Xerces Society
Members of the Northwest Biological Assessment Workgroup (NBAW)
Paul Adamus, Adamus Resource Assessment
Ralph Garono, Earth Design Consultants, Inc.
Ralph Rogers, The U.S. Environmental Protection Agency