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