Pringle Falls Prescribed Fire, Oregon - OR047 Additional Site Information James H. Speer and Thomas W. Swetnam Purpose of Collection: Ecology - insect outbreaks Detrend method: 40-year cubic smoothing spline Cores are stored at Laboratory of Tree-Ring Research, Tucson, AZ. This site was collected for a pandora moth outbreak study. We were able to demonstrate that much of the variance in the tree cores was explained by the effects of pandora moth defoliation, therefore, this chronology would not be useful for climate reconstruction. We used a 40-year cubic smoothing spline on the cores to remove long-term climate fluctuations and age trends. References: Speer, J.H. 1997. A dendrochronological record of pandora moth (Coloradia pandora, Blake) outbreaks in central Oregon. MS thesis, The Univeristy of Arizona. Tucson, 159pp. Speer, J.H., Swetnam, T.W., Wickman, B.E., and Youngblood, A., 2000. Changes in pandora moth outbreak dynamics during the past 622 years. Submitted to Ecology. COFECHA output: Chronology file name : OR047.CRN Measurement file name : OR047.RWL Date checked : 29MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1354 Ending year : 1991 Principal investigators: James H. Speer and Thomas W. Swetnam Site name : Pringle Falls Prescribed Fire Site location : Oregon Species information : PIPO PONDEROSA PINE Latitude : +4344 Longitude : -12139 Elevation : 1320M Series intercorrelation: 0.405 Avg mean sensitivity : 0.228 Avg standard deviation : 0.548 Avg autocorrelation : 0.861 Number dated series : 30 Segment length tested : 50 Number problem segments: 138 Pct problem segments : 31.72 PART 5: CORRELATION OF SERIES BY SEGMENTS: or047.rwl 13:11 Tue 29 Mar 2005 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 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 PPF32A 1568 1991 .27B .30A .54 .71 .76 .56 .31A .43 .60 .60 .63 .58 2 PPF32B 1615 1991 .55 .63 .73 .39 .36 .41 .45 .53 .51 .49 3 PPF33A 1641 1991 .32B .27B .19B .41 .70 .71 .67 .61 .57 4 PPF33B 1637 1991 .51 .33 .28A .43 .50 .49 .46 .39B .39 5 PPF34A 1600 1991 .44 .46 .34 .17B-.13B-.06B .22B .54 .60 .47 6 PPF34B 1629 1991 .48 .29A .16B .30B .44 .52 .57 .64 .41 7 PPF35A 1747 1991 .38 .40 .56 .43 .35 8 PPF35B 1731 1991 .29B .51 .56 .35 .39 9 PPF36A 1712 1991 .29B .24B .46 .65 .63 .51 10 PPF36B 1715 1991 .12B .28A .57 .79 .60 .52 11 PPF37B 1552 1991 .68 .62 .66 .74 .82 .63 .51 .60 .53 .32A .32A .46 12 PPF38A 1698 1991 .21B .17B .21B .47 .76 .75 .63 13 PPF38B 1725 1991 .16B .38B .55 .67 .39 14 PPF39A 1526 1991 .12B .36B .46 .43 .33B .39B .48 .13B .18B .39 .42 .46 .54 15 PPF39B 1570 1991 .20A .22A .53 .45 .43B .46 .26B .41 .61 .65 .62 .64 16 PPF40A 1648 1991 .72 .73 .56 .56 .62 .61 .74 .63 .45 17 PPF40B 1493 1991 .20A .18A .35 .29B .33 .59 .66 .62 .50 .54 .49 .39 .49 .56 .40 18 PPF04A 1391 1669 -.09B-.04B .36 .66 .52 .33 .47 .30A .26A .43 .46 19 PPF15 1562 1991 .27A .22B .47 .53 .43B .32B .25B .28B .46B .61 .57 .41B 20 PPF16B 1493 1787 .24B .28B .44 .48 .37B .40B .41B .45 .44 .44 .50 .46 21 PPF17A 1563 1900 .60 .59 .57 .68 .77 .30B .34B .59 .47 .56 .62 .46 22 PPF17B 1487 1870 .22A .28A .35 .55 .51 .53 .59 .56 .25B .27B .45 .47 .45 .39 .58 23 PPF18B 1495 1840 -.01B-.03B .29A .32A .27A .42 .59 .67 .56 .38 .28B .35 .26B .25B 24 PPF20A 1487 1840 .21B .13B .20B .58 .52 .44 .48 .47 .36 .24B .34 .54 .70 .61 25 PPF20B 1368 1850 -.12B-.01B .09B .47 .59 .36 .15B .34 .49 .48 .58 .46 .41 .38 .31A .44 .43B .50 .53 .53 26 PPF21 1512 1826 .26B .12B .29A .43 .50 .50 .56 .23B .23B .55 .55 .65 .56 27 PPF22 1354 1840 -.10B-.06B-.13B-.04B .34B .31A .17B .33B .36 .49 .58 .45 .48 .54 .64 .65 .61 .61 .50 28 PPF23A 1376 1874 -.14B-.07B .32A .73 .54 .46 .53 .37 .36 .53 .76 .65 .51 .51 .57 .65 .61 .64 .54 29 PPF23B 1454 1870 .59 .66 .57 .37B .18B .31A .56 .74 .74 .53 .49 .51 .56 .52 .54 .39 30 PPF09 1568 1868 .17B .21B .38 .30B .24B .32B .31A .33B .33A .40 .57 .19B Av segment correlation -.11 -.08 -.04 .28 .58 .33 .25 .32 .38 .39 .51 .54 .53 .39 .33 .41 .49 .56 .54 .47 PART 5: CORRELATION OF SERIES BY SEGMENTS: or047.rwl 13:11 Tue 29 Mar 2005 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ 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 1850 1875 1900 1925 1950 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 PPF32A 1568 1991 .48 .44 .52 .54 .43 2 PPF32B 1615 1991 .44 .24B .40 .47 .35 3 PPF33A 1641 1991 .30B .20B .34 .13B .12B 4 PPF33B 1637 1991 .33 .39 .54 .48 .47 5 PPF34A 1600 1991 .28B .08B .21B .23B .18A 6 PPF34B 1629 1991 .28B .36 .46 .37 .22B 7 PPF35A 1747 1991 .45 .47 .49 .48 .51 8 PPF35B 1731 1991 .38 .36 .51 .64 .58 9 PPF36A 1712 1991 .36 .31B .45 .43 .44 10 PPF36B 1715 1991 .64 .68 .71 .55 .46 11 PPF37B 1552 1991 .37 .36 .47 .43 .43 12 PPF38A 1698 1991 .43 .21B .24B .54 .55 13 PPF38B 1725 1991 .19B .33B .49 .52 .49 14 PPF39A 1526 1991 .56 .59 .46 .45 .35 15 PPF39B 1570 1991 .37 .35B .59 .48 .55 16 PPF40A 1648 1991 .50 .44 .32A .22B .14B 17 PPF40B 1493 1991 .25B .38 .54 .44 .35 19 PPF15 1562 1991 .16B .25B .14B-.02B .01B 21 PPF17A 1563 1900 .25B .25B Av segment correlation .37 .35 .44 .41 .37 PART 7: DESCRIPTIVE STATISTICS: or047.rwl 13:11 Tue 29 Mar 2005 Page 9 ------------------------------------------------------------------------------------------------------------------------------------ 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 PPF32A 1568 1991 424 17 3 .489 .79 2.62 .460 .854 .231 2.51 .311 -.031 1 2 PPF32B 1615 1991 377 15 1 .439 .99 2.81 .426 .782 .216 2.69 .422 -.025 1 3 PPF33A 1641 1991 351 14 7 .387 .97 4.02 .825 .897 .249 2.55 .360 -.028 3 4 PPF33B 1637 1991 355 14 2 .436 1.04 4.51 .878 .919 .233 2.77 .432 .003 3 5 PPF34A 1600 1991 392 15 9 .285 .90 2.66 .534 .850 .276 2.74 .418 -.030 1 6 PPF34B 1629 1991 363 14 5 .391 .98 3.46 .566 .850 .247 2.52 .332 -.010 1 7 PPF35A 1747 1991 245 10 0 .447 1.40 3.46 .702 .917 .192 2.55 .401 -.001 1 8 PPF35B 1731 1991 261 10 1 .456 .91 2.44 .515 .916 .205 2.63 .382 -.042 1 9 PPF36A 1712 1991 280 11 3 .427 1.08 3.18 .674 .918 .177 2.46 .230 -.026 2 10 PPF36B 1715 1991 277 11 2 .530 .94 3.24 .568 .920 .175 2.76 .418 .016 1 11 PPF37B 1552 1991 440 17 2 .509 .86 3.20 .560 .890 .238 2.63 .354 -.011 1 12 PPF38A 1698 1991 294 12 5 .412 1.21 3.39 .643 .835 .233 2.62 .384 -.032 1 13 PPF38B 1725 1991 267 10 4 .381 1.23 3.93 .912 .913 .233 2.43 .274 -.017 3 14 PPF39A 1526 1991 466 18 6 .388 .74 3.35 .412 .875 .221 2.50 .284 -.046 1 15 PPF39B 1570 1991 422 17 5 .461 .63 1.96 .328 .819 .228 2.67 .386 -.022 1 16 PPF40A 1648 1991 344 14 3 .475 .92 3.45 .663 .916 .210 2.43 .264 -.034 1 17 PPF40B 1493 1991 499 20 4 .421 .78 2.42 .438 .874 .219 2.63 .389 -.020 1 18 PPF04A 1391 1669 279 11 4 .337 1.06 3.86 .674 .894 .240 2.79 .364 .027 1 19 PPF15 1562 1991 430 17 13 .313 1.01 3.00 .581 .805 .273 2.62 .359 -.013 1 20 PPF16B 1493 1787 295 12 5 .403 1.65 4.49 .810 .841 .245 2.57 .484 -.037 1 21 PPF17A 1563 1900 338 14 4 .488 1.09 2.34 .391 .843 .169 2.68 .356 -.018 1 22 PPF17B 1487 1870 384 15 4 .419 .92 3.09 .444 .830 .204 2.72 .396 -.030 1 23 PPF18B 1495 1840 346 14 8 .340 1.05 4.17 .665 .867 .222 2.72 .375 -.018 1 24 PPF20A 1487 1840 354 14 4 .394 .72 1.97 .308 .835 .200 2.85 .368 -.012 2 25 PPF20B 1368 1850 483 20 6 .338 .58 1.86 .349 .863 .259 2.71 .326 -.017 1 26 PPF21 1512 1826 315 13 5 .402 .92 2.96 .483 .861 .226 2.58 .310 -.013 1 27 PPF22 1354 1840 487 19 8 .234 .98 2.81 .532 .842 .228 2.30 .180 -.021 2 28 PPF23A 1376 1874 499 19 3 .425 .74 1.90 .374 .839 .242 2.63 .437 -.020 1 29 PPF23B 1454 1870 417 16 3 .506 .88 2.76 .412 .799 .237 2.64 .352 -.037 1 30 PPF09 1568 1868 301 12 9 .278 1.14 5.38 .950 .872 .257 2.53 .297 .001 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 10985 435 138 .405 .94 5.38 .548 .861 .228 2.85 .353 -.020