Creating Snags for Wildlife
description
Transcript of Creating Snags for Wildlife
Creating Snags for Wildlife
Rebecca CahallFS 533
March 15, 2007
Where are the snags?• Limited in forested landscapes
– Management effects
Creating snags
•Herbicide•Inoculation with fungi•Girdling•Pheromone baiting•Topping
–Saw or explosive
Success =
Killed
treesPersiste
dForagin
g
Nesting
Herbicide ++ + / -Inoculation - +
Girdling ++ - + - Pheromone / -Topping ++ + ++ +
Effective +Used
And the best method for creating snags
• Topping trees below live crown
•Improvements?
~Combine topping with pheromone baiting
Questions?
Sources• Bull, E. L., and A. D. Partridge. 1986. Methods of killing trees for use by
cavity nesters. Wildlife Society Bulletin 14:142-146.• Conner, R. N., J. C. Kroll, and D. L. Kulhavy. 1983. The potential of girdled
and 2,4-D injected southern red oaks as woodpecker nesting and foraging sites. Southern Journal of Applied Forestry 7:125-128.
• Filip, G. M., C. G. Parks, F. A. Baker, and S. E. Daniels. 2004. Artificial inoculation of decay fungi into Douglas-fir with rifle or shotgun to produce wildlife trees in western Oregon. Western Journal of Applied Forestry 19:211-214.
• Hallet, J. G., T. Lopez, M. A. O'Connell, and M. A. Borysewicz. 2001. Decay dynamics and avian use of artificially created snags. Northwest Science 75:378-386.
• Ross, D. W., and C. G. Niwa. 1997. Using aggregation and antiaggregation pheromones of the Douglas-fir beetle to produce snags for wildlife habitat. Western Journal of Applied Forestry 12:52-54.