Interior Alaska Aspen Site SA1079, Alaska - AK182 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 : AK182.CRN Measurement file name : AK182.RWL Date checked : 18DEC20 Checked by : B. Bauer Beginning year : 1930 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 SA1079 Site location : Alaska Species information : PPTR QUAKING ASPEN Latitude : 6452 Longitude : -14752 Elevation : 70M Series intercorrelation: 0.722 Avg mean sensitivity : 0.408 Avg standard deviation : 0.648 Avg autocorrelation : 0.769 Number dated series : 23 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Interior Alaska Aspen Site SA1079 16:15 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 TA1223 1940 2015 .87 .86 .79 2 TA1123 1967 2015 .70 3 TA223 1936 2015 .64 .83 .74 4 TA323 1946 2015 .55 .77 .78 5 TA423 1931 2015 .85 .83 .85 6 TA123 1934 2015 .82 .83 .77 7 TA923 1931 2015 .83 .90 .88 8 TA823 1934 2015 .80 .84 .78 9 TA723 1932 2015 .82 .80 .74 10 TA623 1932 2015 .70 .84 .89 11 TA523 1933 2015 .73 .75 .69 12 TA1023 1932 2015 .74 .72 .60 13 TM723 1933 2002 .78 .69 .68 14 TM523 1932 1999 .78 .85 15 TM623 1930 2002 .59 .76 .69 16 TM223 1943 2003 .61 .77 .78 17 TM323 1944 2006 .74 .79 .75 18 TM123 1931 2004 .71 .63 .56 19 TM1023 1940 1997 .77 .53 20 TM423 1931 2000 .69 .49 .50 21 TM1223 1931 2011 .88 .87 .76 22 TM1123 1931 2002 .85 .77 .75 23 TM923 1930 2003 .76 .85 .83 Av segment correlation .75 .77 .74 PART 7: DESCRIPTIVE STATISTICS: Interior Alaska Aspen Site SA1079 16:15 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 TA1223 1940 2015 76 3 0 .839 1.10 2.69 .626 .607 .427 2.49 .434 -.017 1 2 TA1123 1967 2015 49 1 0 .786 .57 1.38 .385 .637 .474 2.76 .519 .048 2 3 TA223 1936 2015 80 3 0 .632 .99 2.19 .440 .462 .422 2.61 .492 -.032 1 4 TA323 1946 2015 70 3 0 .568 1.02 2.63 .828 .812 .494 2.62 .412 -.037 1 5 TA423 1931 2015 85 3 0 .836 1.34 3.11 .681 .651 .316 2.54 .387 .047 2 6 TA123 1934 2015 82 3 0 .781 .97 2.49 .734 .843 .466 2.67 .497 .012 1 7 TA923 1931 2015 85 3 0 .838 1.09 2.75 .723 .811 .380 2.58 .405 .018 1 8 TA823 1934 2015 82 3 0 .752 1.28 3.76 1.029 .831 .403 2.69 .419 .069 1 9 TA723 1932 2015 84 3 0 .782 1.16 3.33 .831 .751 .493 2.58 .617 -.054 2 10 TA623 1932 2015 84 3 0 .738 .94 3.50 .648 .819 .350 2.50 .353 -.065 1 11 TA523 1933 2015 83 3 0 .738 1.01 3.49 .903 .838 .458 2.66 .540 -.048 2 12 TA1023 1932 2015 84 3 0 .661 .81 2.50 .723 .872 .368 2.81 .508 -.026 2 13 TM723 1933 2002 70 3 0 .696 .90 2.58 .746 .930 .286 2.62 .376 .079 1 14 TM523 1932 1999 68 2 0 .773 .52 1.68 .408 .740 .472 2.51 .423 -.048 3 15 TM623 1930 2002 73 3 0 .601 .94 2.81 .854 .834 .399 2.53 .501 -.002 2 16 TM223 1943 2003 61 3 0 .611 .61 1.71 .450 .756 .421 2.58 .594 -.012 1 17 TM323 1944 2006 63 3 0 .704 .65 1.79 .433 .666 .390 2.60 .508 -.001 1 18 TM123 1931 2004 74 3 0 .697 .79 2.85 .683 .724 .453 2.67 .507 .004 1 19 TM1023 1940 1997 58 2 0 .596 .41 1.52 .424 .841 .405 2.49 .514 .035 1 20 TM423 1931 2000 70 3 0 .555 .57 1.77 .443 .801 .337 2.54 .451 -.025 1 21 TM1223 1931 2011 81 3 0 .819 .68 2.19 .530 .821 .396 2.72 .528 .063 1 22 TM1123 1931 2002 72 3 0 .755 .57 2.00 .464 .783 .460 2.65 .520 .062 1 23 TM923 1930 2003 74 3 0 .752 .93 2.04 .598 .819 .348 2.42 .458 -.004 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1708 65 0 .722 .89 3.76 .648 .769 .408 2.81 .475 .002