Platte River: Negatives and Photo Index

Identity elements

Reference code

UA 53.68: B16-F61

Level of description



Platte River: Negatives and Photo Index


  • 1994, 2001-2002 (Creation)


Name of creator

Biographical history

Dr. W. Carter Johnson, a Distinguished Professor of Ecology at South Dakota State University, has had a distinguished career spanning over 40 years. He holds a Biology degree from Augustana College and a Ph.D. in Botany from North Dakota State University. Beginning as a Research Associate at Oak Ridge National Laboratory, he later joined Virginia Tech's Department of Biology. From 1989 to 1995, he served as Head of the Department of Horticulture, Forestry, Landscape, and Parks at South Dakota State University. Dr. Johnson's research covers various ecological areas, including river regulation, riparian forest ecology, climate change's impact on prairie wetlands, seed dispersal in fragmented landscapes, paleoecology, and multifunctional agriculture. His work has led to approximately 100 peer-reviewed publications. Notably, his research on riparian wetlands in the Platte, Missouri, and Snake rivers has influenced wetland conservation and restoration efforts, earning him recognition from scientific societies. His expertise in climate change's effects on prairie pothole wetlands has informed policy decisions. Recently, he founded EcoSun Prairie Farms, a non-profit organization showcasing the environmental and economic benefits of restored prairie wetlands. As a distinguished professor emeritus, Dr. Johnson's legacy endures through his continued contributions to research, teaching, and leadership in ecological conservation.

His research interests include river regulation and riparian forest ecology, climate change and prairie wetlands, seed dispersal in fragmented landscapes, paleoecology (climate reconstruction using tree rings; Holocene seed dispersal and plant migration) and multifunctional agriculture and agroecological restoration. His research program is strongly multi-disciplinary and inter-institutional. Dr. Johnson has published approximately 100 peer-reviewed journal articles, books and book chapters.

Content and structure elements

Scope and content


System of arrangement

Conditions of access and use elements

Conditions governing access

This collection is open to researchers without restrictions. The materials in the Archives do not circulate and may be used in-house only.

Physical access

Technical access

Conditions governing reproduction

South Dakota State University supports access to the materials, published and unpublished, in its collections. Nonetheless, access to some items may be restricted as a result of their fragile condition or by contractual agreements with donors.

Languages of the material

    Scripts of the material

      Language and script notes

      Finding aids

      Acquisition and appraisal elements

      Custodial history

      Immediate source of acquisition

      Appraisal, destruction and scheduling information


      Related materials elements

      Existence and location of originals

      Existence and location of copies

      Related archival materials

      Related descriptions

      Notes element

      General note

      Ask Us!

      If you have questions or would like to schedule a visit, please let us know.

      Specialized notes

      Alternative identifier(s)

      Description control element

      Rules or conventions

      Sources used

      Access points

      Subject access points

      Place access points

      Name access points

      Genre access points

      Accession area