Donald Ashton

Treesearch Publications

• Terra Fuller, Karen L. Pope, Donald Ashton, Hart Welsh. 2010. Linking the distribution of an invasive amphibian (Rana catesbeiana) to habitat conditions in a managed river system in northern California.
• Donald Ashton, Sharyn B. Marks, Hartwell H. Welsh Jr. 2006. Evidence of continued effects from timber harvesting on lotic amphibians in redwood forests of northwestern California