1. Monthly archive

September 2021

SEES Meeting

SEES Meeting

SEES Meeting

SEES Meeting

SEES Meeting

SEES Meeting

SEES Meeting

Shannon Harrel

Assistant Curator

shannonharrel@arizona.edu

Where did the timber frame come from? A preliminary multi-variable dendroprovenancing study on living oak trees

To date, dendroprovenancing studies have been conducted using almost exclusively tree-ring with (TRW) chronologies. Floating archaeological series are usually crossdated against a network of master chronologies. The highest correlation statistics are used to associate the floating archaeological series to a specific geographic area and to determine the more probable provenance of a wooden artefact. However, this approach shows some limitations (e.g.

Evaluating the abruptness of dendrochronologically-reconstructed western spruce budworm outbreaks

Reconstructed insect regimes provide information on outbreak interval length, periodicity, duration, and associations with climatic patterns. We explored patterns associated with western spruce budworm outbreak initiation, dating “foremost years” as when the percentage of trees recording defoliation reached a prescribed limit, and quantified outbreak abruptness as the number of years between when 25 and 50% of the trees were defoliated. We re-analyzed budworm data from Colorado and New Mexico to demonstrate the utility of these statistics.