Interior Alaska Aspen Site SA1021, Alaska - AK177 Additional Site Information M.Boyd L.Berner A.Foster S.Goetz B.Rogers X.Walker M.Mack Reference: Boyd, M.A., L.T. Berner, A.C. Foster, S.J. Goetz, B.M. Rogers, X.J. Walker, M.C. Mack. 2021. Historic declines in growth portend trembling aspen death during a contemporary leaf miner outbreak in Alaska. Ecosphere, Vol. 12, No. 6, e03569, June 2021. DOI: 10.1002/ecs2.3569 NOTES: This data file contains raw ring-width chronologies of individual trees that died (dying) and survived (living) an insect oubreak of Phyllocnistis populiella (outbreak period: 1997 - 2013) in Interior Alaska. Living trees have ring-width measurements up to 2015 and the tree names are preceded by TA whereas dying tree ring-width measurements end in 1997-2013 and the tree names are preceded by TM. Funding Sources: NASA Terrestrial Ecology Program, Arctic Boreal and Vulnerability Experiment (ABoVE): NNX17AE44G Strategic Environmental Research and Development Program (SERDP): RC18-C2-1183 Bonanza Creek LTER supported by the NSF: DEB-1636476 USDA Forest Service, Pacific Northwest Research Station: RJVA-PNW-01-JV-11261952-231 COFECHA output: Chronology file name : AK177.CRN Measurement file name : AK177.RWL Date checked : 18DEC20 Checked by : B. Bauer Beginning year : 1941 Ending year : 2015 Principal investigators: M.Boyd L.Berner A.Foster S.Goetz B.Rogers X.Walker M.Mack Site name : Interior Alaska Aspen Site SA1021 Site location : Alaska Species information : PPTR QUAKING ASPEN Latitude : 6437 Longitude : -14902 Elevation : 43M Series intercorrelation: 0.739 Avg mean sensitivity : 0.415 Avg standard deviation : 0.704 Avg autocorrelation : 0.792 Number dated series : 18 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Interior Alaska Aspen Site SA1021 16:11 Fri 18 Dec 2020 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1925 1950 1975 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TA161 1956 2015 .85 .82 2 TA261 1950 2015 .67 .76 3 TA461 1943 2015 .83 .89 .87 4 TA361 1951 2015 .78 .84 5 TA761 1968 1975 .75 6 TA761 1980 2015 .80 7 TA1061 1953 2015 .80 .74 8 TA961 1941 2015 .78 .88 .83 9 TA661 1943 2015 .80 .81 .74 10 TA1261 1949 2015 .73 .73 .85 11 TA561 1949 2015 .79 .82 .85 12 TM861 1945 1997 .61 .80 13 TM1161 1948 2001 .75 .75 .80 14 TM1261 1943 2003 .71 .82 .78 15 TM1061 1946 2003 .74 .72 .63 16 TM961 1944 2009 .81 .82 .78 17 TM261 1949 2008 .66 .67 .40 18 TM561 1944 1997 .75 .75 Av segment correlation .75 .78 .76 PART 7: DESCRIPTIVE STATISTICS: Interior Alaska Aspen Site SA1021 16:11 Fri 18 Dec 2020 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 TA161 1956 2015 60 2 0 .812 1.12 3.00 .762 .673 .509 2.50 .509 -.063 1 2 TA261 1950 2015 66 2 0 .664 1.27 2.98 .851 .874 .390 2.71 .429 -.041 1 3 TA461 1943 2015 73 3 0 .828 1.29 2.81 .764 .799 .350 2.48 .477 -.025 2 4 TA361 1951 2015 65 2 0 .793 1.36 3.72 .951 .848 .413 2.59 .392 -.007 1 5 TA761 1968 1975 8 1 0 .752 13.25 19.22 4.526 .318 .338 2.31 .815 -.161 2 6 TA761 1980 2015 36 1 0 .795 .73 2.17 .618 .773 .533 2.89 .583 .089 1 7 TA1061 1953 2015 63 2 0 .761 .68 2.29 .518 .799 .452 2.73 .538 .012 1 8 TA961 1941 2015 75 3 0 .775 1.26 3.26 .895 .868 .413 2.58 .547 .089 2 9 TA661 1943 2015 73 3 0 .791 1.33 4.27 .997 .780 .505 2.74 .496 .004 2 10 TA1261 1949 2015 67 3 0 .756 .90 2.08 .491 .689 .424 2.54 .457 -.043 1 11 TA561 1949 2015 67 3 0 .781 .96 1.77 .409 .522 .401 2.62 .526 .035 3 12 TM861 1945 1997 53 2 0 .602 .64 2.39 .672 .850 .488 2.52 .474 -.062 1 13 TM1161 1948 2001 54 3 0 .738 .55 1.89 .472 .839 .371 2.73 .526 -.022 1 14 TM1261 1943 2003 61 3 0 .670 .62 1.48 .442 .835 .330 2.48 .411 -.062 1 15 TM1061 1946 2003 58 3 0 .651 .46 1.57 .400 .856 .414 2.60 .497 .037 1 16 TM961 1944 2009 66 3 0 .806 .82 2.84 .661 .830 .410 2.55 .598 -.005 1 17 TM261 1949 2008 60 3 0 .587 .70 3.68 .770 .872 .326 2.55 .403 .026 1 18 TM561 1944 1997 54 2 0 .704 .75 2.42 .631 .845 .379 3.40 .571 .115 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1059 44 0 .739 1.03 19.22 .704 .792 .415 3.40 .496 .002