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Southern Oregon University

Sciences RM 380

1250 Siskiyou Blvd.

Ashland, OR  97520

(541) 552-6868





B. S. 1977 General Studies Tulane University, cum laude, with Honors in Biology
M. S. 1981 Plant Ecology Colorado State University
Ph.D 1984 Plant Ecology Colorado State University



Principles of Biology Evolution and Diversity (Bi212)

Introductory Ecology (Bi340)

Plant Ecology (Bi454/554)

Fire Ecology (ES 480) 


Research Interests

I am currently working on introduction new teaching methods to my courses and assessing their effectiveness in improving student learning and retention.



Welden, C. W. and R. A. Hossler. 2003..Evolution in the lab: Biocide resistance in E. coli. The American Biology Teacher 65:56-61.

Donovan, T. M. and Welden, C. W. 2001..Spreadsheet Exercises in Ecology and Evolution. 556 pp. Sinauer Assoc.

Donovan, T. M. and Welden, C. W. 2001. Spreadsheet Exercises in Conservation and Landscape Ecology. 464 pp. Sinauer Assoc.

Welden, C. W. 1999.. Using spreadsheets to teach ecological modeling. Bulletin of the Ecological Society of America 80:65-67.

Welden, C. W.,. S. W. Hewett, S. P. Hubbell, and R. B. Foster. 1991. Sapling survival, growth, and recruitment in relationship to canopy height in a neotropical forest. Ecology 72:35-50.

Welden, C. W., W. L. Slauson, and R. T. Ward. 1990.. Spatial pattern and interference in pinon-juniper woodlands of northwest Colorado. Great Basin Naturalist 50:313-319.

Welden, C. W., W. L. Slauson, and R. T. Ward. 1988.. Competition and abiotic stress among trees and shrubs in northwest Colorado. Ecology 69:1566-1577.