Interactions between Below- / Above- Ground Processes
Ken Raffa: Introductions; Project overview
Bob Murphy: Insect sampling & tree evaluation
Joe Lennart: Stand mapping
Jun Zhu: Spatially explicit statistical analysis
Enrico Bonello, Alieta Eyles: Tree phys; Links
Renee Pinski: Insect processing
Dan Young: Insect biodiversity
Arnaud Costa, John Reeve: Pred-Prey / Disp
Working Hypothesis
Root & Lower Stem Beetles; Vector fungi
Fungi pass through root grafts
Compromise defenses in main stem;Ips kill root-infested trees
Preliminary Evidence of Suppression of Red Pine Decline
Epicenter
Root graft severing 10 m outside edge of tree mortality 1994
Live TreesNov 2001
Evaluate role of below-ground herbivory & infection in
above-ground stem colonization
Evaluate connectedness among stands, including
movement of root insects, bark beetles, predators
Conduct manipulative experiments to test relative
importance of inciting agents, bark beetles, predators
Evaluate effects of these processes on
species composition of plants & insects
NSF LTREB 2003 - 2009
NSF REU 2004, 2005, 2006
Roles of various collaborators
Stand manipulations
WI Dept. Nat. Res., J. Cummings-Carlson
Spatio-temporal analysis of colonization by multiple species
J. Zhu, M. Clayton, B. Aukema
Predator dispersal & predator-prey interactionsJ. Reeve
Insect community responses to altered vegetationD. Young
Landscape-level connections among declining standsV. Radeloff
2003 2004 2005 2006 2007 2008 2009
Site Selection
Plot Establ.
Treatment
Spatial Mapping
Insect Sampling
Tree Evaluation
Biodiversity
Tree Chemistry
Insect dispersal
Status of Major Objectives
Stand mapping (Jan-March) R Murphy, S Lishawa, J Lennart
Insect sampling (Apr-Sept) R Murphy, R Vershay
Insect dispersalMarch set-up A Costa, J Reeve, R Murphy, S Lishawa
May-Aug A Costa, A Kendrick, J Reeve
Insect biodiversity (2006-07) S Eastwood, D Young, Grad Students
Tree chemistry (2006-07) E Bonello, A Eyles, UW tech to be hired
Tree Evaluation (Oct-Dec) R Murphy, S Lishawa
Objectives & Personnel: 2006