The authors suggested that slow recovery in some areas may be due to big game browsing pressure after fire. Despite this, current-year twig production was significantly greater on burned sites than on unburned sites in postfire years 1 to 3. The fire was successful in both respects. Saskatoon serviceberry sprouts usually co-occurred with Oregon white oak sprouts on such sites. Neither Saskatoon serviceberry sprouts, Saskatoon serviceberry seedlings, nor Oregon white oak sprouts occurred on microsites that were heavily disturbed before fire.
Saskatoon serviceberry response to repeated burning is unclear.
Frequency was 8 percent on unburned sites and 16 percent on annually burned sites. In the Willamette Valley of Oregon, Kalapuyan Indians apparently controlled Saskatoon serviceberry with frequent fire in order to promote acorn production by Oregon white oak.